activemq-artemis/docs/user-manual/network-isolation.adoc

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ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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= Network Isolation (Split Brain)
:idprefix:
:idseparator: -
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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It is possible that if a replicated live or backup server becomes isolated in a network that failover will occur and you will end up with 2 live servers serving messages in a cluster, this we call split brain.
There are different configurations you can choose from that will help mitigate this problem
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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== Quorum Voting
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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Quorum voting is used by both the live and the backup to decide what to do if a replication connection is disconnected.
Basically the server will request each live server in the cluster to vote as to whether it thinks the server it is replicating to or from is still alive.
You can also configure the time for which the quorum manager will wait for the quorum vote response.
The default time is 30 seconds you can configure like so for master and also for the slave:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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[,xml]
----
<ha-policy>
<replication>
<master>
<quorum-vote-wait>12</quorum-vote-wait>
</master>
</replication>
</ha-policy>
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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----
This being the case the minimum number of live/backup pairs needed is 3.
If less than 3 pairs are used then the only option is to use a Network Pinger which is explained later in this chapter or choose how you want each server to react which the following details:
=== Backup Voting
By default if a replica loses its replication connection to the live broker it makes a decision as to whether to start or not with a quorum vote.
This of course requires that there be at least 3 pairs of live/backup nodes in the cluster.
For a 3 node cluster it will start if it gets 2 votes back saying that its live server is no longer available, for 4 nodes this would be 3 votes and so on.
When a backup loses connection to the master it will keep voting for a quorum until it either receives a vote allowing it to start or it detects that the master is still live.
for the latter it will then restart as a backup.
How many votes and how long between each vote the backup should wait is configured like so:
[,xml]
----
<ha-policy>
<replication>
<slave>
<vote-retries>12</vote-retries>
<vote-retry-wait>5000</vote-retry-wait>
</slave>
</replication>
</ha-policy>
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
It's also possible to statically set the quorum size that should be used for the case where the cluster size is known up front, this is done on the Replica Policy like so:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
[,xml]
----
<ha-policy>
<replication>
<slave>
<quorum-size>2</quorum-size>
</slave>
</replication>
</ha-policy>
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
In this example the quorum size is set to 2 so if you were using a single pair and the backup lost connectivity it would never start.
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
=== Live Voting
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
By default, if the live server loses its replication connection then it will just carry on and wait for a backup to reconnect and start replicating again.
In the event of a possible split brain scenario this may mean that the live stays live even though the backup has been activated.
It is possible to configure the live server to vote for a quorum if this happens, in this way if the live server doesn't not receive a majority vote then it will shutdown.
This is done by setting the _vote-on-replication-failure_ to true.
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
[,xml]
----
<ha-policy>
<replication>
<master>
<vote-on-replication-failure>true</vote-on-replication-failure>
<quorum-size>2</quorum-size>
</master>
</replication>
</ha-policy>
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
As in the backup policy it is also possible to statically configure the quorum size.
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
== Pinging the network
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
You may configure one more addresses on the broker.xml that are part of your network topology, that will be pinged through the life cycle of the server.
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
The server will stop itself until the network is back on such case.
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
If you execute the create command passing a -ping argument, you will create a default xml that is ready to be used with network checks:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
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----
./artemis create /myDir/myServer --ping 10.0.0.1
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
This XML part will be added to your broker.xml:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
[,xml]
----
<!--
You can verify the network health of a particular NIC by specifying the <network-check-NIC> element.
<network-check-NIC>theNicName</network-check-NIC>
-->
<!--
Use this to use an HTTP server to validate the network
<network-check-URL-list>http://www.apache.org</network-check-URL-list> -->
<network-check-period>10000</network-check-period>
<network-check-timeout>1000</network-check-timeout>
<!-- this is a comma separated list, no spaces, just DNS or IPs
it should accept IPV6
Warning: Make sure you understand your network topology as this is meant to check if your network is up.
Using IPs that could eventually disappear or be partially visible may defeat the purpose.
You can use a list of multiple IPs, any successful ping will make the server OK to continue running -->
<network-check-list>10.0.0.1</network-check-list>
<!-- use this to customize the ping used for ipv4 addresses -->
<network-check-ping-command>ping -c 1 -t %d %s</network-check-ping-command>
<!-- use this to customize the ping used for ipv addresses -->
<network-check-ping6-command>ping6 -c 1 %2$s</network-check-ping6-command>
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
Once you lose connectivity towards 10.0.0.1 on the given example, you will see see this output at the server:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
09:49:24,562 WARN [org.apache.activemq.artemis.core.server.NetworkHealthCheck] Ping Address /10.0.0.1 wasn't reacheable
09:49:36,577 INFO [org.apache.activemq.artemis.core.server.NetworkHealthCheck] Network is unhealthy, stopping service ActiveMQServerImpl::serverUUID=04fd5dd8-b18c-11e6-9efe-6a0001921ad0
09:49:36,625 INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 1.6.0 [04fd5dd8-b18c-11e6-9efe-6a0001921ad0] stopped, uptime 14.787 seconds
09:50:00,653 WARN [org.apache.activemq.artemis.core.server.NetworkHealthCheck] ping: sendto: No route to host
09:50:10,656 WARN [org.apache.activemq.artemis.core.server.NetworkHealthCheck] Host is down: java.net.ConnectException: Host is down
at java.net.Inet6AddressImpl.isReachable0(Native Method) [rt.jar:1.8.0_73]
at java.net.Inet6AddressImpl.isReachable(Inet6AddressImpl.java:77) [rt.jar:1.8.0_73]
at java.net.InetAddress.isReachable(InetAddress.java:502) [rt.jar:1.8.0_73]
at org.apache.activemq.artemis.core.server.NetworkHealthCheck.check(NetworkHealthCheck.java:295) [artemis-commons-1.6.0-SNAPSHOT.jar:1.6.0-SNAPSHOT]
at org.apache.activemq.artemis.core.server.NetworkHealthCheck.check(NetworkHealthCheck.java:276) [artemis-commons-1.6.0-SNAPSHOT.jar:1.6.0-SNAPSHOT]
at org.apache.activemq.artemis.core.server.NetworkHealthCheck.run(NetworkHealthCheck.java:244) [artemis-commons-1.6.0-SNAPSHOT.jar:1.6.0-SNAPSHOT]
at org.apache.activemq.artemis.core.server.ActiveMQScheduledComponent$2.run(ActiveMQScheduledComponent.java:189) [artemis-commons-1.6.0-SNAPSHOT.jar:1.6.0-SNAPSHOT]
at org.apache.activemq.artemis.core.server.ActiveMQScheduledComponent$3.run(ActiveMQScheduledComponent.java:199) [artemis-commons-1.6.0-SNAPSHOT.jar:1.6.0-SNAPSHOT]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_73]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [rt.jar:1.8.0_73]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [rt.jar:1.8.0_73]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [rt.jar:1.8.0_73]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_73]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_73]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_73]
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
Once you re establish your network connections towards the configured check list:
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
----
09:53:23,461 INFO [org.apache.activemq.artemis.core.server.NetworkHealthCheck] Network is healthy, starting service ActiveMQServerImpl::
09:53:23,462 INFO [org.apache.activemq.artemis.core.server] AMQ221000: live Message Broker is starting with configuration Broker Configuration (clustered=false,journalDirectory=./data/journal,bindingsDirectory=./data/bindings,largeMessagesDirectory=./data/large-messages,pagingDirectory=./data/paging)
09:53:23,462 INFO [org.apache.activemq.artemis.core.server] AMQ221013: Using NIO Journal
09:53:23,462 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-server]. Adding protocol support for: CORE
09:53:23,463 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-amqp-protocol]. Adding protocol support for: AMQP
09:53:23,463 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-hornetq-protocol]. Adding protocol support for: HORNETQ
09:53:23,463 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-mqtt-protocol]. Adding protocol support for: MQTT
09:53:23,464 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-openwire-protocol]. Adding protocol support for: OPENWIRE
09:53:23,464 INFO [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-stomp-protocol]. Adding protocol support for: STOMP
09:53:23,541 INFO [org.apache.activemq.artemis.core.server] AMQ221003: Deploying queue jms.queue.DLQ
09:53:23,541 INFO [org.apache.activemq.artemis.core.server] AMQ221003: Deploying queue jms.queue.ExpiryQueue
09:53:23,549 INFO [org.apache.activemq.artemis.core.server] AMQ221020: Started Acceptor at 0.0.0.0:61616 for protocols [CORE,MQTT,AMQP,STOMP,HORNETQ,OPENWIRE]
09:53:23,550 INFO [org.apache.activemq.artemis.core.server] AMQ221020: Started Acceptor at 0.0.0.0:5445 for protocols [HORNETQ,STOMP]
09:53:23,554 INFO [org.apache.activemq.artemis.core.server] AMQ221020: Started Acceptor at 0.0.0.0:5672 for protocols [AMQP]
09:53:23,555 INFO [org.apache.activemq.artemis.core.server] AMQ221020: Started Acceptor at 0.0.0.0:1883 for protocols [MQTT]
09:53:23,556 INFO [org.apache.activemq.artemis.core.server] AMQ221020: Started Acceptor at 0.0.0.0:61613 for protocols [STOMP]
09:53:23,556 INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live
ARTEMIS-4383 migrate user docs to AsciiDoc Markdown, which is currently used for user-facing documentation, is good for a lot of things. However, it's not great for the kind of complex documentation we have and our need to produce both multi-page HTML and single-page PDF output via Maven. Markdown lacks features which would make the documentation easier to read, easier to navigate, and just look better overall. The current tool-chain uses honkit and a tool called Calibre. Honkit is written in TypeScript and is installed via NPM. Calibre is a native tool so it must be installed via an OS-specific package manager. All this complexity makes building, releasing, uploading, etc. a pain. AsciiDoc is relatively simple like Markdown, but it has more features for presentation and navigation not to mention Java-based Maven tooling to generate both HTML and PDF. Migrating will improve both the appearance of the documentation as well as the processes to generate and upload it. This commit contains the following changes: - Convert all the Markdown for the User Manual, Migration Guide, and Hacking guide to AsciiDoc via kramdown [1]. - Update the `artemis-website` build to use AsciiDoctor Maven tooling. - Update `RELEASING.md` with simplified instructions. - Update Hacking Guide with simplified instructions. - Use AsciiDoc link syntax in Artemis Maven doc plugin. - Drop EPUB & MOBI docs for User Manual as well as PDF for the Hacking Guide. All docs will be HTML only except for the User Manual which will have PDF. - Move all docs up out of their respective "en" directory. This was a hold-over from when we had docs in different languages. - Migration & Hacking Guides are now single-page HTML since they are relatively short. - Refactor README.md to simplify and remove redundant content. Benefits of the change: - Much simplified tooling. No more NPM packages or native tools. - Auto-generated table of contents for every chapter. - Auto-generated anchor links for every sub-section. - Overall more appealing presentation. - All docs will use the ActiveMQ favicon. - No more manual line-wrapping! AsciiDoc recommends one sentence per line and paragraphs are separated by a blank line. - AsciiDoctor plugins for IDEA are quite good. - Resulting HTML is less than *half* of the previous size. All previous links/bookmarks should continue to work. [1] https://github.com/asciidoctor/kramdown-asciidoc
2023-07-27 23:45:17 -04:00
09:53:23,556 INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 1.6.0 [0.0.0.0, nodeID=04fd5dd8-b18c-11e6-9efe-6a0001921ad0]
----
____
== Warning
Make sure you understand your network topology as this is meant to validate your network.
Using IPs that could eventually disappear or be partially visible may defeat the purpose.
You can use a list of multiple IPs.
Any successful ping will make the server OK to continue running
____