Updated to not mislead the reader that the data is actually gone when a document is updated. For example if you have 100GB of docs and update each one you'll only be able to access 100GB of the data, but there would theoretically be 200GB of doc data.
Closes#10375
As a follow up to #11332, this commit simplifies more class names by remove the superfluous Operation:
TransportBroadcastOperationAction -> TransportBroadcastAction
TransportMasterNodeOperationAction -> TransportMasterNodeAction
TransportMasterNodeReadOperationAction -> TransportMasterNodeReadAction
TransportShardSingleOperationAction -> TransportSingleShardAction
Closes#11349
Instead of listing the directory to file the latest segments_N file, we
should re-use the generation/filename from the last commit. This allows
us to avoid potential race conditions on the filesystem as well as
reduce the number of directory listings performed.
The count request now acts like search and barfs if all shards fail
this behavior changed and some tests like RecoveryWhileUnderLoadTests
relied on the lenient behavior of the old count API. This might be
a temporary solution to stop current test failures.
Relates to #11198
The count api used to have its own execution path, although it would do the same (up to bugs!) of the search api. This commit makes it a shortcut to the search api with size set to 0. The change is made in a backwards compatible manner, by leaving all of the java api code around too, given that you may not want to get back a whole SearchResponse when asking only for number of hits matching a query, also cause migrating from countResponse.getCount() to searchResponse.getHits().totalHits() doesn't look great from a user perspective. We can always decide to drop more code around the count api if we want to break backwards compatibility on the java api, making it a shortcut on the rest layer only.
Closes#9117Closes#11198
Add support for a specific deprecation logging that can be used to turn
on in order to notify users of a specific feature, flag, setting,
parameter, ... being deprecated.
The deprecation logger logs with a "deprecation." prefix logge
(or "org.elasticsearch.deprecation." if full name is used), and outputs
the logging to a dedicated deprecation log file.
Deprecation logging are logged under the DEBUG category. The idea is not to
enabled them by default (under WARN or ERROR) when running embedded in
another application.
By default they are turned off (INFO), in order to turn it on, the
"deprecation" category need to be set to DEBUG. This can be set in the
logging file or using the cluster update settings API, see the documentation
Closes#11033
In order to be sure that a release can be executed on the local machine,
the build_release script now checks for environment variables and tries
to execute a couple of commands.
In order to easily check for a correctly setup environment, you can
run the following commands, which exits early and does not trigger a
release process.
```
python3 dev-tools/build_release.py --check-only
```
This change adds a new "filter_path" parameter that can be used to filter and reduce the responses returned by the REST API of elasticsearch.
For example, returning only the shards that failed to be optimized:
```
curl -XPOST 'localhost:9200/beer/_optimize?filter_path=_shards.failed'
{"_shards":{"failed":0}}%
```
It supports multiple filters (separated by a comma):
```
curl -XGET 'localhost:9200/_mapping?pretty&filter_path=*.mappings.*.properties.name,*.mappings.*.properties.title'
```
It also supports the YAML response format. Here it returns only the `_id` field of a newly indexed document:
```
curl -XPOST 'localhost:9200/library/book?filter_path=_id' -d '---hello:\n world: 1\n'
---
_id: "AU0j64-b-stVfkvus5-A"
```
It also supports wildcards. Here it returns only the host name of every nodes in the cluster:
```
curl -XGET 'http://localhost:9200/_nodes/stats?filter_path=nodes.*.host*'
{"nodes":{"lvJHed8uQQu4brS-SXKsNA":{"host":"portable"}}}
```
And "**" can be used to include sub fields without knowing the exact path. Here it returns only the Lucene version of every segment:
```
curl 'http://localhost:9200/_segments?pretty&filter_path=indices.**.version'
{
"indices" : {
"beer" : {
"shards" : {
"0" : [ {
"segments" : {
"_0" : {
"version" : "5.2.0"
},
"_1" : {
"version" : "5.2.0"
}
}
} ]
}
}
}
}
```
Note that elasticsearch sometimes returns directly the raw value of a field, like the _source field. If you want to filter _source fields, you should consider combining the already existing _source parameter (see Get API for more details) with the filter_path parameter like this:
```
curl -XGET 'localhost:9200/_search?pretty&filter_path=hits.hits._source&_source=title'
{
"hits" : {
"hits" : [ {
"_source":{"title":"Book #2"}
}, {
"_source":{"title":"Book #1"}
}, {
"_source":{"title":"Book #3"}
} ]
}
}
```
We used to keep track of the rewritten query in the highlighter context to support custom rewriting done by our own postings highlighter fork. Now that we rely on lucene implementation, no rewrite happens, we can simply keep track of the original query and simplify code around it.
Closes#11317
TransportShardReplicationOperationAction is a mouthful and is the only thing we mean when we say replication. This commit also changes some related friends.
#10032 introduced the notion of sealing an index by marking it with a special read only marker, allowing for a couple of optimization to happen. The most important one was to speed up recoveries of shards where we know nothing has changed since they were online by skipping the file based sync phase. During the implementation we came up with a light notion which achieves the same recovery benefits but without the read only aspects which we dubbed synced flush. The fact that it was light weight and didn't put the index in read only mode, allowed us to do it automatically in the background which has great advantage. However we also felt the need to allow users to manually trigger this operation.
The implementation at #11179 added the sync flush internal logic and the manual (rest) rest API. The name of the API was modeled after the sealing terminology which may end up being confusing. This commit changes the API name to match the internal synced flush naming, namely `{index}/_flush/synced'.
On top of that it contains a couple other changes:
- Remove all java client API. This feature is not supposed to be called programtically by applications but rather by admins.
- Improve rest responses making structure similar to other (flush) API
- Change IndexShard#getOperationsCount to exclude the internal +1 on open shard . it's confusing to get 1 while there are actually no ongoing operations
- Some minor other clean ups
The bin/plugin script now uses the default CONF_DIR & CONF_FILE environment vars. This allows to install a plugin even if Elasticsearch has been installed with a RPM or a DEB package. This commit also adds testing files for TAR archive and plugins installation.
Closes#10673
Today, when loading plugins from the classpath we take the enumeration
given to us by the classloader and attempt to load every URL. This can
cause issues as certain classloaders, such as groovy's, will return the same
URL multiple times in the enumeration. When this happens, startup can fail
with guice errors as bindings have already been registered.
To workaround this, we create a set from the URLs returned by the classloader
to provide uniqueness.
We had some code that created a TermQuery instead of a TermsQuery when there
was a single term, which is not useful anymore now that TermsQuery rewrites to
a disjunction when there are few terms:
https://issues.apache.org/jira/browse/LUCENE-6360
Simplification of MultiValueMode by removing the apply and reduce
methods for each mode. This creates a more consistent environment for
sorting methods since all sorting must now go through select methods.
This allows for better error handling and better encapsulation for
sorting fields with multiple values.
Note that apply and reduce had inconsistencies in the code base
prior to this change since different calls were assuming that the
accumulator for apply was the first input versus the second input.
Also added is an UnsortedNumericDoubleValues interface to allow
customized values to be input into the different sort modes. This
prevents the need for apply/reduce outside of MultiValueMode.
closes#11290
Ryan Schneider
Boaz Leskes
Lee Hinman
Simon Willnauer
javanna
Alexander Reelsen
Michael McCandless
Tanguy Leroux
Britta Weber
David Pilato
Igor Motov
Alex Chan
Eduardo Gurgel
Clinton Gormley
Robert Muir
Robert Muir
Ryan Ernst
jaymode
Adrien Grand
Jack Conradson