The @IndexSettings annoationat has been used to differentiate between node-level
and index level settings. It was also decoupled from realtime-updates such that
the settings object that a class got injected when it was created was static and
not subject to change when an update was applied. This change removes the annoation
and replaces it with a full-fledged class that adds type-safety and encapsulates additional
functionality as well as checks on the settings.
Today IndicesLifecycle is a per-node class that allows to register
listeners at any time. It also requires to de-register if listeners
are not needed anymore ie. if classes are created per-index / shard etc.
They also cause issues where listeners are registered more than once as in #13259
This commit removes the per-node class and replaces it with an well defined
extension point that allows listeners to be registered at index creation time
without the need to unregister since listeners are go out of scope if the index
goes out of scope. Yet, this still allows to share instances across indices as before
but without the risk of double registering them etc.
All data-structures used for event notifications are now immuatble and can only changes
on index creation time. This removes flexibility to some degree but increases maintainability
of the interface and the code itself dramatically especially with the step by step removal of
the index level dependency injection.
Closes#13259
The ExtensionPoint.ClassSet binds adds the extension classes to a a Multibinder and binds
the classes and calls the asEagerSingleton method on the multibinder. This does not actually
create a singleton. Instead we first bind the class as a singleton and add then add the class
to the multibinder.
Closes#14194
Numeric and boolean fields have doc values enabled by default as of
elasticsearch 2.0. This commit removes support for uninverted/in-memory
fielddata, as well as numeric fields encoded in binary doc values which was
the way that elasticsearch stored doc values in a Lucene index before the
1.4 release.
As a consequence, you will only be able to sort and aggregate on numeric and
boolean fields in Elasticsearch 3.0 if doc values have not been switched off.
With #13691 we introduced some custom logic to make sure that date math expressions like <logstash-{now/D}> don't get broken up into two where the slash appears in the expression. That said the only correct way to provide such a date math expression as part of the uri would be to properly escape the '/' instead. This fix also introduced a regression, as it would make sure that unescaped '/' are handled only in the case of date math expressions, but it removed support for properly escaped slashes anywhere else. The solution is to keep supporting escaped slashes only and require client libraries to properly escape them.
This commit reverts 93ad696 and makes sure that our REST tests runner supports escaping of path parts, which was more involving than expected as each single part of the path needs to be properly escaped. I am not too happy with the current solution but it's the best I could do for now, maybe not that concerning anyway given that it's just test code. I do find uri encoding quite frustrating in java.
Relates to #13691
Relates to #13665Closes#14177Closes#14216
There are three ways `@Test` was used. Way one:
```java
@Test
public void flubTheBlort() {
```
This way was always replaced with:
```java
public void testFlubTheBlort() {
```
Or, maybe with a better method name if I was feeling generous.
Way two:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
methodThatThrows();
}
```
This way of using `@Test` is actually pretty OK, but to get the tools to ban
`@Test` entirely it can't be used. Instead:
```java
public void testFoo() {
try {
methodThatThrows();
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e ) {
assertThat(e.getMessage(), containsString("something"));
}
}
```
This is longer but tests more than the old ways and is much more precise.
Compare:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
some();
copy();
and();
pasted();
methodThatThrows();
code(); // <---- This was left here by mistake and is never called
}
```
to:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
some();
copy();
and();
pasted();
try {
methodThatThrows();
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e ) {
assertThat(e.getMessage(), containsString("something"));
}
}
```
The final use of test is:
```java
@Test(timeout=1000)
public void testFoo() {
methodThatWasSlow();
}
```
This is the most insidious use of `@Test` because its tempting but tragically
flawed. Its flaws are:
1. Hard and fast timeouts can look like they are asserting that something is
faster and even do an ok job of it when you compare the timings on the same
machine but as soon as you take them to another machine they start to be
invalid. On a slow VM both the new and old methods fail. On a super-fast
machine the slower and faster ways succeed.
2. Tests often contain slow `assert` calls so the performance of tests isn't
sure to predict the performance of non-test code.
3. These timeouts are rude to debuggers because the test just drops out from
under it after the timeout.
Confusingly, timeouts are useful in tests because it'd be rude for a broken
test to cause CI to abort the whole build after it hits a global timeout. But
those timeouts should be very very long "backstop" timeouts and aren't useful
assertions about speed.
For all its flaws `@Test(timeout=1000)` doesn't have a good replacement __in__
__tests__. Nightly benchmarks like http://benchmarks.elasticsearch.org/ are
useful here because they run on the same machine but they aren't quick to check
and it takes lots of time to figure out the regressions. Sometimes its useful
to compare dueling implementations but that requires keeping both
implementations around. All and all we don't have a satisfactory answer to the
question "what do you replace `@Test(timeout=1000)`" with. So we handle each
occurrence on a case by case basis.
For files with `@Test` this also:
1. Removes excess blank lines. They don't help anything.
2. Removes underscores from method names. Those would fail any code style
checks we ever care to run and don't add to readability. Since I did this manually
I didn't do it consistently.
3. Make sure all test method names start with `test`. Some used to end in `Test` or start
with `verify` or `check` and they were picked up using the annotation. Without the
annotation they always need to start with `test`.
4. Organizes imports using the rules we generate for Eclipse. For the most part
this just removes `*` imports which is a win all on its own. It was "required"
to quickly remove `@Test`.
5. Removes unneeded casts. This is just a setting I have enabled in Eclipse and
forgot to turn off before I did this work. It probably isn't hurting anything.
6. Removes trailing whitespace. Again, another Eclipse setting I forgot to turn
off that doesn't hurt anything. Hopefully.
7. Swaps some tests override superclass tests to make them empty with
`assumeTrue` so that the reasoning for the skips is logged in the test run and
it doesn't "look like" that thing is being tested when it isn't.
8. Adds an oxford comma to an error message.
The total test count doesn't change. I know. I counted.
```bash
git checkout master && mvn clean && mvn install | tee with_test
git no_test_annotation master && mvn clean && mvn install | tee not_test
grep 'Tests summary' with_test > with_test_summary
grep 'Tests summary' not_test > not_test_summary
diff with_test_summary not_test_summary
```
These differ somewhat because some tests are skipped based on the random seed.
The total shouldn't differ. But it does!
```
1c1
< [INFO] Tests summary: 564 suites (1 ignored), 3171 tests, 31 ignored (31 assumptions)
---
> [INFO] Tests summary: 564 suites (1 ignored), 3167 tests, 17 ignored (17 assumptions)
```
These are the core unit tests. So we dig further:
```bash
cat with_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > with_test_suites
cat not_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > not_test_suites
diff <(sort with_test_suites) <(sort not_test_suites)
```
The four tests with lower test numbers are all extend `AbstractQueryTestCase`
and all have a method that looks like this:
```java
@Override
public void testToQuery() throws IOException {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
super.testToQuery();
}
```
It looks like this method was being double counted on master and isn't anymore.
Closes#14028
The NotQueryBuilder has been deprecated on the 2.x branches
and can be removed with the next major version. It can be
replaced by boolean query with added mustNot() clause.
Closes#13761
This commit replaces instances of manually computing a hash code for
primitive longs by XORing the upper bits with the lower bits with a
built-in method for doing the same.
This adds an API for force merging lucene segments. The `/_optimize` API is now
deprecated and replaced by the `/_forcemerge` API, which has all the same flags
and action, just a different name.
This commit removes some cache concurrency level settings that were
applicable when the cache was backed by the Guava cache implementation,
but no longer apply with the cache implementation completed in #13717.
Relates #7836, relates #13224, relates #13717
Today we leak the notion of an engine outside of the shard abstraction
which is not desirable. This commit refactors the infrastrucutre to use
use already existing interfaces to communicate if a shard has failed and
prevents engine private classes to be implemented on a higher level.
This change is purely cosmentical...
This commit removes some build output files from the
burn_maven_with_fire_branch that appear to have been mistakenly
committed to master in bfb9054a11.
This is very simple to do and recommended by `privileges(5)` documentation:
```
Daemons that never need to exec subprocesses should remove the PRIV_PROC_EXEC privilege from their permitted and limit sets.
```
Closes#14200
Adds *Exception(Throwable cause) constructors and calls them where appropriate
thus getting rid of 16 instances of calling getMessage and eliminating the risk
of loosing exception context.
Fixes ElasticsearchTimeoutException along the way (used to discard the
parameter args in the (String message, Object... args) constructor, passes it
up to super now.
Relates to #10021
Geopoint's equals method was modified to consider two points equal if they are within a threshold. This change was done to accept round-off error introduced from GeoHash encoding methods. This commit removes this trappy leniency from the GeoPoint equals method and instead forces round-off error to be handled at the encoding source.
This commit renames ShardReplicationTests to
TransportReplicationActionTests. This rename is to reflect the fact
that the tests contained in this test suite are for testing
TransportReplicationAction. This class was previously renamed but the
test suite was not.
Does so by improving the error message passed to MapperParsingException.
The error messages for mapping conflicts now look like:
```
{
"error" : {
"root_cause" : [ {
"type" : "mapper_parsing_exception",
"reason" : "Failed to parse mapping [type_one]: Mapper for [text] conflicts with existing mapping in other types:\n[mapper [text] has different [analyzer], mapper [text] is used by multiple types. Set update_all_types to true to update [search_analyzer] across all types., mapper [text] is used by multiple types. Set update_all_types to true to update [search_quote_analyzer] across all types.]"
} ],
"type" : "mapper_parsing_exception",
"reason" : "Failed to parse mapping [type_one]: Mapper for [text] conflicts with existing mapping in other types:\n[mapper [text] has different [analyzer], mapper [text] is used by multiple types. Set update_all_types to true to update [search_analyzer] across all types., mapper [text] is used by multiple types. Set update_all_types to true to update [search_quote_analyzer] across all types.]",
"caused_by" : {
"type" : "illegal_argument_exception",
"reason" : "Mapper for [text] conflicts with existing mapping in other types:\n[mapper [text] has different [analyzer], mapper [text] is used by multiple types. Set update_all_types to true to update [search_analyzer] across all types., mapper [text] is used by multiple types. Set update_all_types to true to update [search_quote_analyzer] across all types.]"
}
},
"status" : 400
}
```
Closes#12839
Change implementation
Rather than make a new exception this improves the error message of the old
exception.
MetaDataSerivce tried to protect concurrent index creation/deletion
from resulting in inconsistent indices. This was originally added a
long time ago via #1296 which seems to be caused by several problems
that we fixed already in 2.0 or even in late 1.x version. Indices where
recreated without being deleted and shards where deleted while being used
which is now prevented on several levels. We can safely remove the semaphores
since we are already serializing the events on the cluster state threads.
This commit also fixes some expception handling bugs exposed by the added test
We currently have two, which is confusing when you read the code (especially if one is used with a null default and the other with '*')
Note: this is not a real bug, just a clean up. We do the right thing...
Closes#13988
After a full cluster restart, the elected master is tasked with recovery the last known cluster state from disk. To do so, the GatewayService registers it self as a listener to cluster state changes, triggering the recovery if the local node is elected. Sadly the initial post-election cluster state can be missed if it's being processed while the listener is registered (i.e., the listener is too late but the discoveryService.initialStateReceived is not yet set). In this case the cluster state from disk will be recovered with the next change (typically node join).
In practice this is not a big deal as master election takes at least 3s (by which time the gateway is long started), but it does make some of our tests to fail: http://build-us-00.elastic.co/job/es_core_master_centos/7915/
To fix this, we submit a cluster state task after the edition of the listener, so we are guaranteed to check things while they are at rest.
While at it, I removed some left over latch which we don't really wait on anymore.
Closes#13997
When we check the engine if a flush is needed we don't catch EngineClosedException today
but the engine is potentially closed already in which case we can simply return false and don't need
to bubble up the exception.
Closed indices are currently out of scope for snapshots and shard migration,
and can cause issues in managed environments – where closing an index does
not necessarily make sense, as it still consumes the managed environment's storage quota.
This commit adds an option to dynamically disable closing indices via node or cluster settings.
Closes#14168
We used to change the minimumShouldMatch field of the query depending on the context, the final minimim should match should still be applied based on that, but the original minimumShouldMatch of the query shouldn't change. This was revelead by some recent test failure.
Closes#14153
Currently we require parser to be right before the sources START_OBJECT
but if we are parsing embedded search sources this won't work since we potentially
moved already on to the START_OBJECT. This commit make this optional such that
both ways work.
We can't track disk usage in this situation, failing is the correct thing to do.
But we can give a FreeBSD-specific error message, so the user can set the
necessary jail parameters, versus a vague IOException.
Closes#12018
Closes#14120
Squashed commit of the following:
commit 556b7f5783211bd82a5d9796996e21be87b0404b
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 15:16:54 2015 -0400
Add bugid link
commit b44aac7e9f1a97974938c17e013812ebf4c2fa76
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 15:01:41 2015 -0400
Test that the lucene "unmap hack" is supported.
We should know if this is not working for any configuration, otherwise resources such as address space, file handles, and even disk space become tied to Java's garbage collector.
This test failed only on a feature branch, because that feature branch has
a different build randomization script and is the only place
randomizing tests.security.manager (this test cannot run with it enabled).
On old kernels without TSYNC support, the test fails because (surprise to me) the thread that
runs the test is not the same thread that runs static initializers:
7571489190/randomized-runner/src/main/java/com/carrotsearch/randomizedtesting/RandomizedRunner.java (L573-L574)
To fix this test (its not an issue in practice, since we do this before creating threadpools),
we just record for testing purposes that we couldn't TSYNC, and re-run the whole thing for the test thread
in setUp(), failing if something goes wrong.
Also add a bunch of additional paranoia and narrow our defensive checks better here after reading
through more chrome bug reports: they don't impact us but those linux distros are too cowboy
with the backports and the spirit of the checks makes me feel better.
This commit adds a new metric aggregator for computing the geo_centroid over a set of geo_point fields. This can be combined with other aggregators (e.g., geohash_grid, significant_terms) for computing the geospatial centroid based on the document sets from other aggregation results.
This commit cleans up IndexMetaData. In particular, all duplicate
getters (X and getX) have been collapsed into one (getX). Further, the
number of shards and number of replicas settings are now parsed once
and saved off as fields.
* Add ability for plugins to declare additional permissions with a custom plugin-security.policy file and corresponding AccessController logic. See the plugin author's guide for more information.
* Add warning messages to users for extra plugin permissions in bin/plugin.
* When bin/plugin is run interactively (stdin is a controlling terminal and -b/--batch not supplied), require user confirmation.
* Improve unit test and IDE support for plugins with additional permissions by exposing plugin's metadata as a maven test resource.
Closes#14108
Squashed commit of the following:
commit cf8ace65a7397aaccd356bf55f95d6fbb8bb571c
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 13:36:05 2015 -0400
fix new unit test from master merge
commit 9be3c5aa38f2d9ae50f3d54924a30ad9cddeeb65
Merge: 2f168b8 7368231
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 12:58:31 2015 -0400
Merge branch 'master' into off_my_back
commit 2f168b8038e32672f01ad0279fb5db77ba902ae8
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 12:56:04 2015 -0400
improve plugin author documentation
commit 6e6c2bfda68a418d92733ac22a58eec35508b2d0
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 12:52:14 2015 -0400
move security confirmation after 'plugin already installed' check, to prevent user from answering unnecessary questions.
commit 08233a2972554afef2a6a7521990283102e20d92
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 05:36:42 2015 -0400
Add documentation and pluginmanager support
commit 05dad86c51488ba43ccbd749f0164f3fbd3aee62
Author: Robert Muir <rmuir@apache.org>
Date: Wed Oct 14 02:22:24 2015 -0400
Decentralize plugin permissions (modulo docs and pluginmanager work)
This commit makes sure that the plugin script looks at user, group and permissions of the elasticsearch bin dir and copies them over to the plugin bin subdirectory, whatever they are, so that they get properly setup depending on how elasticsearch was installed. We also make sure that execute permissions are added for files (we already did this before).
Relates to #11016Closes#14088
Today we leak an index searcher if we fail to wrap the seacher in
IndexShard. This commit ensures that the seacher is released if the wrapper
throws an exception.
This commit also restructures some test to be more atomic and only test a single
feature / attribute of the wrapper.
This commit changes the behavior of Cache#computeIfAbsent to not invoke
load for a key under the segment lock. Instead, the synchronization
mechanism to ensure that load is invoked at most once per key is
through the use of a future. Under the segment lock, we put a future in
the cache and through this ensure that load is invoked at most once per
key. This will not lead to the same deadlock situation as before
because a dependent key load on the same thread can not be triggered
while the segment lock is held.
Closes#14090
We randomly use the WindowsFS mock file system to simulate that
windows does not delete files if they are opened by some other
process and instead gives you java.io.IOException: access denied.
In the tests we also check if the shard was deleted while it is
being deleted. This check loads the mata data of the index
and therefore might hold on to a file while the node
is trying to delete it and deletion will fail then.
Instead we should just check if the directory was removed.
closes#13758
this commit also fixes a bug where we wramed a leaf reader in a top level context
which caused atomic segment readers to be used in our top level caches.
IndexReader#addReaderCloseListener is very error prone when it comes to
caching and reader wrapping. The listeners are not delegated to the sub readers
nor can it's implementation change since it's final in the base class. This commit
only allows installing close listeners on the top level ElasticsearchDirecotryReader
which is known to work an has a defined lifetime which corresponds to its subreader.
This ensure that cachesa re cleared once the reader goes out of scope.
In #13606, the ability to exclude a template from being wiped was added but a call to
wipeTemplates() was not removed, so all index templates were still being removed.
This change removes the wipeTemplates() call in the wipe method so that only the
non-excluded templates are removed.
Depending on how elasticsearch is installed, we have two scenarios to take into account that relate to user, group and permissions assigned to the config directory:
1) deb/rpm package: /etc/elasticsearch is root:elasticsearch 750 and the plugin script is run from root user
2) tar/zip archive: es config dir is most likely elasticsearch:elasticsearch and the plugin script is most likely run from elasticsearch user
When the plugin script copies over the plugin config dir within the es config dir, it should take care of setting the proper user, group and permissions, which vary depending on how elasticsearch was installed in the first place. Should be root:elasticsearch 750 if installed from a package, or elasticsearch:elasticsearch if installed from an archive.
This commit makes sure that the plugin script looks at user, group and permissions of the config dir and copies them over to the plugin config subdirectory, whatever they are, so that they get properly setup depending on how elasticsearch was installed in the first place. We also make sure that execute permissions are left untouched for files.
Relates to #11016Closes#14048
Closes#14070
Squashed commit of the following:
commit ad5829e590cf6150763c31886e97d69976b7f02d
Author: Robert Muir <rmuir@apache.org>
Date: Tue Oct 13 06:50:25 2015 -0400
Add more tests for version map caching
commit 617333eefd6d4ddc99db491d0843827b1b5936b2
Author: Robert Muir <rmuir@apache.org>
Date: Mon Oct 12 13:25:51 2015 -0400
fix javadocs ref
commit 9626dd02e01a2676538e1071e302d882fc870837
Author: Robert Muir <rmuir@apache.org>
Date: Mon Oct 12 13:23:16 2015 -0400
make the version map cache per-segment
This commit adds methods to serialize the elements of int and long
arrays using variable-length encodings. This can be useful for
serializing int and long arrays containing mostly non-negative “not
large” values in a compressed form.
FiltersFunctionScoreQuery sums up scores and weights and scores as double but when
we explain we cannot get the double scores from the explanation of score
functions. as a result we cannot compute the exact score from the explanations
of the functions alone.
this commit makes the explanation more accurate but also causes the score to be
computed one additional time.
we should sum the weights as double to not lose precision. also,
the tests should simulate exactly what function score does and then test
for equality of scores.
This method is unused can can simply be removed. It's rather confusing
instead since it's another way of invalidating a cache entry but not through
the close listener.
Restoring an index from a snapshot or creating a new index can bring the index settings index.blocks.read_only, index.blocks.read, index.blocks.write and index.blocks.metadata out-of-sync with the corresponding cluster blocks.
Closes#13931
The IndexAliasesService abstraction only adds unnecessary code and classes
and can be removed. This commit folds the rather simple methods in this
class into IndexService where the IndexAliasesService was obtained from in the past.
RoutingTable.Builder#build can only be called once but didn't have any
checks to make sure it _was_ only called once. And the error message it
threw when called more than once was a NullPointerException. This makes
it throw IllegalStateException when you try to reuse the builder in any way.
- removes Lucene.count(IndexSearcher,Query) in favor of IndexSearcher.count(Query)
- removes EarlyTerminatingCollector.reset(): reusing Collector objects does not
help given that query execution needs to allocate objects (weights, scorers)
anyway
- adds unit tests to Lucene.exists
When deleting an individual scroll ID, ES does produce a 200 in the
header if successful and a 404 if the scroll ID wasn't found, but
returns empty response body. It will be more user friendly to provide
some information on whether the scroll deletion is successful.
Simon Willnauer
Simon Willnauer
jaymode
javanna
Adrien Grand
Lee Hinman
Nik Everett
Yannick Welsch
Christoph Büscher
Jason Tedor
Robert Muir
Isabel Drost-Fromm
Isabel Drost-Fromm
Nicholas Knize
Britta Weber
Luca Cavanna
Boaz Leskes
Colin Goodheart-Smithe
Robert Muir
Alexander Reelsen
Britta Weber
Andreas Kohn
xuzha