Stopping the server should be able to handle exceptions thrown by
individual components. Before this patch the stop method would throw
any raised exception and exit. This can lead to partial shutdowns of
the server resulting in leaking threads. This patch catches any
component exceptions and logs an appropriate error message, allowing the
server to properly shutdown.
The failback process needs to be deterministic rather than relying on various
incarnations of Thread.sleep() at crucial points. Important aspects of this
change include:
1) Make the initial replication synchronization process block at the very
last step and wait for a response from the replica to ensure the replica has
as the necessary data. This is a critical piece of knowledge during the
failback process because it allows the soon-to-become-backup server to know
for sure when it can shut itself down and allow the soon-to-become-live
server to take over. Also, introduce a new configuration element called
"initial-replication-sync-timeout" to conrol how long this blocking will occur.
2) Set the state of the server as 'LIVE' only after the server is fully
started. This is necessary because once the soon-to-be-backup server shuts
down it needs to know that the soon-to-be-live server has started fully before
it restarts itself as the new backup. If the soon-to-be-backup server restarts
before the soon-to-be-live is fully started then it won't actually become a
backup server but instead will become a live server which will break the
failback process.
3) Wait to receive the announcement of a backup server before failing-back.
Netty 4.x uses pooled buffers. These buffers can run out of memory when
transferring large amounts of data over connection. This was causing an
OutOfMemory exception to be thrown on the CoreBridge when tranferring
large messages. Netty provides a callback handler to notify listeners
when a Connection is writable. This patch adds the ability to register
connection writable listeners to the Netty connection and registers the
relevant callback from the Bridge to avoid writing when the buffers are
full.
In one situation I have seen a failrue on ProducerFlowControl to break everything else from here
This change will both avoid the failure and change the report of leaked threads so we can find them easily on the system.out when it happens (for future debugging)
this is doing some refactoring, making the SecurityStore mechnism possible to be reused on other protocols,
without forcing them to implement ServerSession on checks that won't fit the Server Model from Artemis
this is just calling Idea format on all the files using the new style
I am separating manual changes from automatic changes in case I have to repeat the manual changes again
The information about the bridge connection retries is already logged
at DEBUG level elsewhere and a WARN message is already logged when the
connection dies in the first place. I don't see any good reason to
keep this logging here.
https://issues.apache.org/jira/browse/ARTEMIS-163
On this pass I'm just converting the native layer to a simpler one.
It wasn't very easy to change the alignment at the current framework,
so I did some refactoring simplifying the native layer
The volume of the nubmer of changes here is because:
- The API is changed, we now don't close the libaio queue between files
- The native layer won't use malloc as much as it used to, saving some CPU and memory defragmentation
- I organized the code around nio and libaio
The current Security Manager implementation was returning the username
instead of the default password when validating the default user.
This patch returns the correct value and cleans up the validate method.
https://issues.apache.org/jira/browse/ARTEMIS-136
From what I researched from implementers of XA TM if you throw ERR over communication errors the transaction manager will create
an heuristic transaction to be manually dealt with.
Other XA Implementations (such as Oracle JDBC) are return FAIL over communication failures during any XA operation.
"mvn install" now works without the lint, but a "mvn install javadoc:jar" still fails. Since that is what the release plugin uses, need to keep the lint there for now. Still lots of failures.
To reproduce this commit, apply a replace regex rule using:
search regex: /\*\*\n \* Licensed
replace: /\*\n \* Licensed
These files had to be changed manually:
artemis-selector/src/main/javacc/HyphenatedParser.jj
artemis-selector/src/main/javacc/StrictParser.jj
artemis-website/src/main/resources/styles/impact/css/pygmentize.css
artemis-website/src/main/resources/styles/impact/css/site.css
Martyn Taylor
Clebert Suconic
jbertram
Ville Skyttä
Andy Taylor
Erich Duda
Ivo Studensky
Julian Scheid
Petter Nordlander
Howard Gao
Ryan Emerson
Otavio Rodolfo Piske
Howard Gao
John D. Ament
Daniel Kulp
Thiago Kronig