Commit Graph

246 Commits

Author SHA1 Message Date
Wenjun Ruan 0b1f4a2069
Rename `file` to `dir` in Environment (#2730)
* Rename `file` to `dir` in Environment

Signed-off-by: ruanwenjun <wenjun@apache.org>

* Fix compile error

Signed-off-by: ruanwenjun <wenjun@apache.org>

* fix compile error

Signed-off-by: ruanwenjun <wenjun@apache.org>
2022-04-05 09:23:08 -04:00
Nick Knize 05a5819243
[Upgrade] Lucene 9.1.0-snapshot-ea989fe8f30 (#2487)
* [Upgrade] Lucene 9.1.0-snapshot-ea989fe8f30

Upgrades from Lucene 9.0.0 to 9.1.0-snapshot-ea989fe8f30 in preparation for
9.1.0 GA.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>

* Add spanishplural token filter

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>

* fix KNOWN_TOKENIZERS

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
2022-03-16 15:47:25 -04:00
Venkata Jyothsna Donapati 02c6a7f156
Prefer adaptive replica selection over awareness attribute based routing (#1107)
* Prefer adaptive replica selection over awareness attribute based routing

Signed-off-by: jyothsna <donapv@amazon.com>

* Minor changes

Signed-off-by: jyothsna <donapv@amazon.com>

* Address review comments

Signed-off-by: jyothsna <donapv@amazon.com>

* Fix checkstyle

Signed-off-by: jyothsna <donapv@amazon.com>

* Minor fix

Signed-off-by: jyothsna <donapv@amazon.com>
2022-01-21 11:11:49 -06:00
Vacha e66ea2c4f3
Avoid logging duplicate deprecation warnings multiple times (#1660)
* Avoid logging duplicate deprecation warnings multiple times

Signed-off-by: Vacha <vachshah@amazon.com>

* Fixes test failures

Signed-off-by: Vacha <vachshah@amazon.com>

* Adding deprecation logger tests

Signed-off-by: Vacha <vachshah@amazon.com>

* Using ConcurrentHashMap keySet

Signed-off-by: Vacha Shah <vachshah@amazon.com>
2021-12-15 15:26:44 -08:00
arunabh23 41e0ff9d6d
Make default number of shards configurable (#625)
* Make default number of shards configurable

The default number of primary shards for a new index, when the number of shards are not provided in the request, can be configured for the cluster.

Signed-off-by: Arunabh Singh <arunabs@amazon.com>

* Address PR comments

Signed-off-by: Arunabh Singh <arunabs@amazon.com>

Co-authored-by: Arunabh Singh <arunabs@amazon.com>
2021-05-05 12:23:49 -07:00
Nick Knize ee6d15e26a
[License] Add SPDX License Header to security policies (#531)
This commit adds the SPDX license header and modifications copyright to security
policy files.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
2021-04-12 22:59:36 -05:00
Nick Knize 9168f1fb43
[License] Add SPDX and OpenSearch Modification license header (#509)
This commit adds the SPDX Apache-2.0 license header along with an additional
copyright header for all modifications.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
2021-04-09 14:28:18 -05:00
Rabi Panda eddfe6760d [Rename] Fix issues for gradle precommit task. (#418)
Fix miscellaneous issues identified during `gradle precommit`. These issues are the side effects of the renaming to OpenSearch work.

Signed-off-by: Rabi Panda <adnapibar@gmail.com>
2021-03-21 20:56:34 -05:00
Rabi Panda 13f6d23e40 [Rename] Property and metadata keys with prefix es. (#389)
Rename all property and metadata keys with prefix 'es.' to 'opensearch.'.

Signed-off-by: Rabi Panda <adnapibar@gmail.com>
2021-03-21 20:56:34 -05:00
Nick Knize f75803e1aa [Rename] Second pass clean up of imports and variable names in server module (#382)
This commit cleans up imports, variable names, comments, and other misc usages
of ES with the new OpenSearch name.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
2021-03-21 20:56:34 -05:00
Nick Knize 5b46a05702 [Rename] remaining packages and resources in test/fixture (#364)
This commit refactors the remaining o.e.index and o.e.test packages in the
test/fixtures module. References throughout the codebase are also refactored.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
2021-03-21 20:56:34 -05:00
Nick Knize fafa4fc941 [Rename] Refactor ES and Elasticsearch classes in server module bootstrap package (#197)
This commit refactors the heavily used ESPolicy, Elasticsearch (main class), and Elasticsearch 
prefixed test classes used in the bootstrap package under the server module. Refactoring the 
namespace will come in a separate commit.

Signed-off-by: Nicholas Knize <nknize@amazon.com>
2021-03-21 20:56:34 -05:00
Harold Wang a011c15bc8 Rename files under qa folder (#212)
* Rename directory elasticsearch to opensearch
Rename EvilElasticsearchCliTests EvilOpenSearchCliTests

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename org.elasticsearch to org.opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename waitForElasticsearch to waitForOpenSearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename OpensearchNode to OpenSearchNode

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename "elasticsearch.version" to "opensearch.version"

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearchVersionString to opensearchVersionString

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch.yml to opensearch.yml

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename runElasticsearchTests to runOpenSearchTests

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearchVersion to opensearchVersion

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch to opensearch in gradle files

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ElasticsearchAssertions to OpenSearchAssertions

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename folder share/elasticsearch to share/opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch to opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch-service-x64 to opensearch-service-x64

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch-service.bat to opensearch-service.bat

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename Elasticsearch to Opensearch
Rename elasticsearch to opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ELASTIC_PASSWORD_FILE to OPENSEARCH_PASSWORD_FILE

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ELASTICSEARCH_PASSWORD to OPENSEARCH_PASSWORD
Rename elasticsearch to opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch to opensearch

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch.log to opensearch.log

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename es-repo to opensearch-repo

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ESTestCase to OpenSearchTestCase

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ESRestTestCase to OpenSearchRestTestCase

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch to opensearch
Rename "Starts ElasticSearch" to "Starts OpenSearch"

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename ESElasticsearchCliTestCase to BaseOpenSearchCliTestCase

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename "elasticsearch:test" to "opensearch:test"

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename test91ElasticsearchShardCliPackaging to test91OpenSearchShardCliPackaging

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch.toString to opensearch.toString

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename elasticsearch.pid to opensearch.pid

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename "Opensearch" to "OpenSearch"
Rename "elasticsearch" to "opensearch"

Signed-off-by: Harold Wang <harowang@amazon.com>

* Rename Elasticsearch to OpenSearch
Remove unecessary dot after opensearch.

Signed-off-by: Harold Wang <harowang@amazon.com>
2021-03-21 20:56:34 -05:00
Harold Wang 844e56abf3 [Rename] Rename files under "qa" folder (#194)
* [Rename] Rename qa folder

Signed-off-by: Harold Wang <harowang@amazon.com>

* Remove the dot in the end of "package org.opensearch."

Signed-off-by: Harold Wang <harowang@amazon.com>

* Add semicolon

Signed-off-by: Harold Wang <harowang@amazon.com>
2021-03-21 20:56:34 -05:00
Tim Brooks e573fa9abc
Add data.path fast path for FilePermission (#61302)
The recursive data.path FilePermission check is an extremely hot
codepath in Elasticsearch. Unfortunately the FilePermission check in
Java is extremely allocation heavy. As it iterates through different
file permissions, it allocates byte arrays for each Path component that
must be compared. This PR improves the situation by adding the recursive
data.path FilePermission it its own PermissionsCollection object which
is checked first.
2020-09-01 12:03:22 -06:00
Rory Hunter ff6c071275
Implement deprecation logging using log4j (#61629)
Backport of #61474.

Part of #46106. Simplify the implementation of deprecation logging by
relying of log4j more completely, and implementing additional behaviour
through custom appenders and filters.
2020-08-31 12:42:04 +01:00
Przemyslaw Gomulka 9f566644af
Do not create two loggers for DeprecationLogger backport(#58435) (#61530)
DeprecationLogger's constructor should not create two loggers. It was
taking parent logger instance, changing its name with a .deprecation
prefix and creating a new logger.
Most of the time parent logger was not needed. It was causing Log4j to
unnecessarily cache the unused parent logger instance.

depends on #61515
backports #58435
2020-08-26 16:04:02 +02:00
Przemyslaw Gomulka f3f7d25316
Header warning logging refactoring backport(#55941) (#61515)
Splitting DeprecationLogger into two. HeaderWarningLogger - responsible for adding a response warning headers and ThrottlingLogger - responsible for limiting the duplicated log entries for the same key (previously deprecateAndMaybeLog).
Introducing A ThrottlingAndHeaderWarningLogger which is a base for other common logging usages where both response warning header and logging throttling was needed.

relates #55699
relates #52369
backports #55941
2020-08-25 16:35:54 +02:00
Ignacio Vera b4521d5183
upgrade to Lucene 8.6.0 snapshot (#56661) 2020-05-13 14:25:16 +02:00
Rory Hunter d66af46724
Always use deprecateAndMaybeLog for deprecation warnings (#55319)
Backport of #55115.

Replace calls to deprecate(String,Object...) with deprecateAndMaybeLog(...),
with an appropriate key, so that all messages can potentially be deduplicated.
2020-04-23 09:20:54 +01:00
William Brafford 2ba3be9db6
Remove deprecated third-party methods from tests (#55255) (#55269)
I've noticed that a lot of our tests are using deprecated static methods
from the Hamcrest matchers. While this is not a big deal in any
objective sense, it seems like a small good thing to reduce compilation
warnings and be ready for a new release of the matcher library if we
need to upgrade. I've also switched a few other methods in tests that
have drop-in replacements.
2020-04-15 17:54:47 -04:00
Jason Tedor 5fcda57b37
Rename MetaData to Metadata in all of the places (#54519)
This is a simple naming change PR, to fix the fact that "metadata" is a
single English word, and for too long we have not followed general
naming conventions for it. We are also not consistent about it, for
example, METADATA instead of META_DATA if we were trying to be
consistent with MetaData (although METADATA is correct when considered
in the context of "metadata"). This was a simple find and replace across
the code base, only taking a few minutes to fix this naming issue
forever.
2020-03-31 17:24:38 -04:00
Alan Woodward d23112f441 Report parser name and location in XContent deprecation warnings (#53805)
It's simple to deprecate a field used in an ObjectParser just by adding deprecation
markers to the relevant ParseField objects. The warnings themselves don't currently
have any context - they simply say that a deprecated field has been used, but not
where in the input xcontent it appears. This commit adds the parent object parser
name and XContentLocation to these deprecation messages.

Note that the context is automatically stripped from warning messages when they
are asserted on by integration tests and REST tests, because randomization of
xcontent type during these tests means that the XContentLocation is not constant
2020-03-20 11:52:55 +00:00
Armin Braun 7189c57b6c
Record Force Merges in Live Commit Data (#52694) (#53372)
* Record Force Merges in live commit data

Prerequisite of #52182. Record force merges in the live commit data
so two shard states with the same sequence number that differ only in whether
or not they have been force merged can be distinguished when creating snapshots.
2020-03-11 06:30:36 +01:00
Jim Ferenczi dc5c31d67a
Add a deprecation warning regarding allocation awareness in search request (#48351)
This is a follow up of https://github.com/elastic/elasticsearch/issues/43453 where we added
a system property to disallow allocation awareness in search requests. Since search requests
will no longer check the allocation awareness attributes for routing in the next major version,
this change adds a deprecation warning on any setup that uses these attributes.

Relates #43453
2019-10-24 09:25:50 +02:00
Jim Ferenczi f2a6c88f83
Add a system property to ignore awareness attributes (#46375)
This is a follow up of #19191 for 7.x.
This change adds a system property called "es.routing.search_ignore_awareness_attributes" that when set to true will
effectively ignore allocation awareness attributes when routing search and get requests. This is now the default in 8.x so this
commit adds a way to opt-in to this new behavior in a minor version of 7.x.

Relates #45735
2019-09-06 09:29:27 +02:00
Jason Tedor 92866f977a
Clarify error message on keystore write permissions (#46321)
When the Elasticsearch process does not have write permissions to
upgrade the Elasticsearch keystore, we bail with an error message that
indicates there is a filesystem permissions problem. This commit
clarifies that error message by pointing out the directory where write
permissions are required, or that the user can also run the
elasticsearch-keystore upgrade command manually before starting the
Elasticsearch process. In this case, the upgrade would not be needed at
runtime, so the permissions would not be needed then.
2019-09-05 15:11:54 -04:00
Jason Tedor 599bf2d68b
Deprecate the pidfile setting (#45938)
This commit deprecates the pidfile setting in favor of node.pidfile.
2019-08-23 21:31:35 -04:00
William Brafford 2b549e7342
CLI tools: write errors to stderr instead of stdout (#45586)
Most of our CLI tools use the Terminal class, which previously did not provide methods for writing to standard output. When all output goes to standard out, there are two basic problems. First, errors and warnings are "swallowed" in pipelines, making it hard for a user to know when something's gone wrong. Second, errors and warnings are intermingled with legitimate output, making it difficult to pass the results of interactive scripts to other tools.

This commit adds a second set of print commands to Terminal for printing to standard error, with errorPrint corresponding to print and errorPrintln corresponding to println. This leaves it to developers to decide which output should go where. It also adjusts existing commands to send errors and warnings to stderr.

Usage is printed to standard output when it's correctly requested (e.g., bin/elasticsearch-keystore --help) but goes to standard error when a command is invoked incorrectly (e.g. bin/elasticsearch-keystore list-with-a-typo | sort).
2019-08-21 14:46:07 -04:00
Jason Tedor 5b1b146099
Normalize environment paths (#45179)
This commit applies a normalization process to environment paths, both
in how they are stored internally, also their settings values. This
normalization is done via two means:
 - we make the paths absolute
 - we remove redundant name elements from the path (what Java calls
   "normalization")

This change ensures that when we compare and refer to these paths within
the system, we are using a common ground. For example, prior to the
change if the data path was relative, we would not compare it correctly
to paths from disk usage. This is because the paths in disk usage were
being made absolute.
2019-08-06 06:04:30 -04:00
Alpar Torok b34ac66d96
Mute multiple tests on Windows (7.x) (#44676)
* Mute failing test

tracked in #44552

* mute EvilSecurityTests

tracking in #44558

* Fix line endings in ESJsonLayoutTests

* Mute failing ForecastIT  test on windows

Tracking in #44609

* mute BasicRenormalizationIT.testDefaultRenormalization

tracked in #44613

* fix mute testDefaultRenormalization

* Increase busyWait timeout windows is slow

* Mute failure unconfigured node name

* mute x-pack internal cluster test windows

tracking #44610

* Mute JvmErgonomicsTests on windows

Tracking #44669

* mute SharedClusterSnapshotRestoreIT testParallelRestoreOperationsFromSingleSnapshot

Tracking #44671

* Mute NodeTests on Windows

Tracking #44256
2019-07-22 11:32:29 +03:00
Yannick Welsch 4f941c6963 Do not swallow exceptions in TimedRunnable (#39856)
Executors of type fixed_auto_queue_size (i.e. search / search_throttled) wrap runnables into
TimedRunnable, which is an AbstractRunnable. This is dangerous as it might silently swallow
exceptions, and possibly miss calling a response listener. While this has not triggered any failures in
the tests I have run so far, it might help uncover future problems.

Follow-up to #36137
2019-03-11 19:03:12 +01:00
Henning Andersen 20c66c5a05
Bubble-up exceptions from scheduler (#38317)
Instead of logging warnings we now rethrow exceptions thrown inside
scheduled/submitted tasks. This will still log them as warnings in
production but has the added benefit that if they are thrown during
unit/integration test runs, the test will be flagged as an error.

This is a continuation of #38014

Fixed NPE that caused CCR tests (IndexFollowingIT and likely others)
to fail.

schedule could bubble rejected exception to uncaught exception
handler when not using SAME executor if thread pool is terminated.
Now ignore rejected exception silently if executor is shutdown.
2019-02-05 21:48:24 +01:00
Henning Andersen 68ed72b923
Handle scheduler exceptions (#38014)
Scheduler.schedule(...) would previously assume that caller handles
exception by calling get() on the returned ScheduledFuture.
schedule() now returns a ScheduledCancellable that no longer gives
access to the exception. Instead, any exception thrown out of a
scheduled Runnable is logged as a warning.

This is a continuation of #28667, #36137 and also fixes #37708.
2019-01-31 17:51:45 +01:00
Alpar Torok 3f2723366e Mute failing test
Tracking #37708
2019-01-22 17:16:40 +02:00
Yannick Welsch 6d64a2a901
Propagate Errors in executors to uncaught exception handler (#36137)
This is a continuation of #28667 and has as goal to convert all executors to propagate errors to the
uncaught exception handler. Notable missing ones were the direct executor and the scheduler. This
commit also makes it the property of the executor, not the runnable, to ensure this property. A big
part of this commit also consists of vastly improving the test coverage in this area.
2019-01-17 17:46:35 +01:00
Ryan Ernst fcf7df3eda
Core: Handle security manager permission for deprecation log rolling (#37281)
When the deprecation log is written to within scripting support code
like ScriptDocValues, it runs under the reduces privileges of scripts.
Sometimes this can trigger log rolling, which then causes uncaught
security errors, as was handled in #28485. While doing individual
deprecation handling within each deprecation scripting location is
possible, there are a growing number of deprecations in scripts.

This commit wraps the logging call within the deprecation logger use a
doPrivileged block, just was we would within individual logging call
sites for scripting utilities.
2019-01-10 07:44:40 -08:00
Tal Levy cd1bec3a06
[refactor] add Environment in BootstrapContext (#36573)
There are certain BootstrapCheck checks that may need access environment-specific
values. Watcher's EncryptSensitiveDataBootstrapCheck passes in the node's environment
via a constructor to bypass the shortcoming in BootstrapContext. This commit
pulls in the node's environment into BootstrapContext.

Another case is found in #36519, where it is useful to check the state of the
data-path. Since PathUtils.get and Paths.get are forbidden APIs, we rely on
the environment to retrieve references to things like node data paths.

This means that the BootstrapContext will have the same Settings used in the
Environment, which currently differs from the Node's settings.
2018-12-12 21:07:21 -08:00
Tal Levy 9c1cdea839
[cleanup] remove deprecated references to dataWithClusterFiles (#36574)
data files under the cluster name subdirectory has been deprecated and was
meant to be removed in 6.0. This commit removes some leftover referrences to
these paths.
2018-12-12 16:28:11 -08:00
Jason Tedor a18b599d64
Handle OS pretty name on old OS without OS release (#35453)
Some very old ancient versions of Linux do not have /etc/os-release. For
example, old Red Hat-like OS. This commit adds a fallback for handling
pretty name for these OS.
2018-11-12 19:31:12 -05:00
Jason Tedor 40ca62c298
Address handling of OS pretty name on some OS (#35451)
Some OS (e.g., Oracle Linux Server 6.9) have a trailing space at the end
of the PRETTY_NAME line in /etc/os-release. This commit addresses this
by accounting for this trailing space when extracting the pretty name.
2018-11-12 14:27:57 -05:00
Jason Tedor 730ec1ddfb
Add more detailed OS name on Linux (#35352)
Today our OS information returned in node stats only returns a
high-level name of the OS (e.g., "Linux"). Yet, for some uses this is
too high-level and knowing at a finer level of granularity the
underlying OS can be useful. This commit extracts the pretty name on
Linux from /etc/os-release. This pretty name usually includes the Linux
vendor and the Linux vendor version number (e.g., Fedora 28).
2018-11-08 12:16:58 -05:00
Nik Everett 348c28d1d1
Logger: Merge ESLoggerFactory into Loggers (#35146)
`ESLoggerFactory` is now not particularly interesting and simple enought
to fold entirely into `Loggers. So let's do that.

Closes #32174
2018-11-06 10:49:54 -05:00
Nik Everett ddce9704d4
Logging: Drop two deprecated methods (#34055)
This drops two deprecated methods from `ESLoggerFactory`, switching all
calls to those methods to calls to methods of the same name on
`LogManager`.
2018-09-26 11:20:52 -04:00
Nik Everett 26c4f1fb6c
Core: Default node.name to the hostname (#33677)
Changes the default of the `node.name` setting to the hostname of the
machine on which Elasticsearch is running. Previously it was the first 8
characters of the node id. This had the advantage of producing a unique
name even when the node name isn't configured but the disadvantage of
being unrecognizable and not being available until fairly late in the
startup process. Of particular interest is that it isn't available until
after logging is configured. This forces us to use a volatile read
whenever we add the node name to the log.

Using the hostname is available immediately on startup and is generally
recognizable but has the disadvantage of not being unique when run on
machines that don't set their hostname or when multiple elasticsearch
processes are run on the same host. I believe that, taken together, it
is better to default to the hostname.

1. Running multiple copies of Elasticsearch on the same node is a fairly
advanced feature. We do it all the as part of the elasticsearch build
for testing but we make sure to set the node name then.
2. That the node.name defaults to some flavor of "localhost" on an
unconfigured box feels like it isn't going to come up too much in
production. I expect most production deployments to at least set the
hostname.

As a bonus, production deployments need no longer set the node name in
most cases. At least in my experience most folks set it to the hostname
anyway.
2018-09-19 15:21:29 -04:00
Nik Everett 190ea9a6de
Logging: Configure the node name when we have it (#32983)
Change the logging infrastructure to handle when the node name isn't
available in `elasticsearch.yml`. In that case the node name is not
available until long after logging is configured. The biggest change is
that the node name logging no longer fixed at pattern build time.
Instead it is read from a `SetOnce` on every print. If it is unset it is
printed as `unknown` so we have something that fits in the pattern.
On normal startup we don't log anything until the node name is available
so we never see the `unknown`s.
2018-09-07 14:31:23 -04:00
Nik Everett 294ab7ee96
Core: Remove some logging constructors (#32513)
Remove a few of the logger constructors that aren't widely used or
aren't used at all and deprecate a few more logger constructors in favor
of log4j2's `LogManager`.
2018-08-09 16:11:48 -04:00
Nik Everett abda9fdac1 Logging: Fix test on windows
Windows' `\` instead of `/` strikes again!

Closes #32546
2018-08-09 14:35:30 -04:00
David Turner 7a3eb4b3e8 Add AwaitsFix to failing test - see #32546 2018-08-01 14:28:00 +01:00
Nik Everett 22459576d7
Logging: Make node name consistent in logger (#31588)
First, some background: we have 15 different methods to get a logger in
Elasticsearch but they can be broken down into three broad categories
based on what information is provided when building the logger.

Just a class like:
```
private static final Logger logger = ESLoggerFactory.getLogger(ActionModule.class);
```
or:
```
protected final Logger logger = Loggers.getLogger(getClass());
```

The class and settings:
```
this.logger = Loggers.getLogger(getClass(), settings);
```

Or more information like:
```
Loggers.getLogger("index.store.deletes", settings, shardId)
```

The goal of the "class and settings" variant is to attach the node name
to the logger. Because we don't always have the settings available, we
often use the "just a class" variant and get loggers without node names
attached. There isn't any real consistency here. Some loggers get the
node name because it is convenient and some do not.

This change makes the node name available to all loggers all the time.
Almost. There are some caveats are testing that I'll get to. But in
*production* code the node name is node available to all loggers. This
means we can stop using the "class and settings" variants to fetch
loggers which was the real goal here, but a pleasant side effect is that
the ndoe name is now consitent on every log line and optional by editing
the logging pattern. This is all powered by setting the node name
statically on a logging formatter very early in initialization.

Now to tests: tests can't set the node name statically because
subclasses of `ESIntegTestCase` run many nodes in the same jvm, even in
the same class loader. Also, lots of tests don't run with a real node so
they don't *have* a node name at all. To support multiple nodes in the
same JVM tests suss out the node name from the thread name which works
surprisingly well and easy to test in a nice way. For those threads
that are not part of an `ESIntegTestCase` node we stick whatever useful
information we can get form the thread name in the place of the node
name. This allows us to keep the logger format consistent.
2018-07-31 10:54:24 -04:00