It is possible for state documents to be
left behind in the state index. This may be
because of bugs or uncontrollable scenarios.
In any case, those documents may take up quite
some disk space when they add up. This commit
adds a step in the expired data deletion that
is part of the daily maintenance service. The
new step searches for state documents that
do not belong to any of the current jobs and
deletes them.
Closes#30551
* add QA-style Rest tests to index-lifecycle
This PR introduces a `qa` module within the index-lifecycle project.
the idea is to have both complex policies tested, as well as
policies with isolated/singular actions. So far, only tests with policies
containing one action are implemented.
Following Actions have implemented tests in this commit
- AllocateAction
- DeleteAction
- ForceMergeAction
- ReadOnlyAction
- ReplicasAction
tests to be added later
- RolloverAction
- ShrinkAction
* respond to review and enable integTests
* fix dependsOn fiasco
* fix license
* update to new proj structure
* move to new integTest with x-pack-core as module
* remove unused imports
* update to use module instead of plugin
Adjust fast forward for token expiration test
Adjusts the maximum fast forward time for token expiration tests
to be 5 seconds before actual token expiration so that the test
won't fail even when upperlimit is randomly selected.
Resolves: #30062
The part of the history template responsible for slack attachments had a
dynamic mapping configured which could lead to problems, when a string
value looking like a date was configured in the value field of an
attachment.
This commit fixes the template by setting this field always to text.
This also requires a change in the template numbering to be sure this
will be applied properly when starting watcher.
This commit removes xpack from being a meta-plugin-as-a-module.
It also fixes a couple tests which were missing task dependencies, which
failed once the gradle execution order changed.
Removes dependency for server's version from the JDBC driver code. This
should allow us to dramatically reduce driver's size by removing the
server dependency from the driver.
Relates #29856
This commit increases the logging level around search to aid in
debugging failures in LicensingTests#testSecurityActionsByLicenseType
where we are seeing all shards failed error while trying to search the
security index.
See #30301
This change adds a `listTasks` method to the high level java
ClusterClient which allows listing running tasks through the
task management API.
Related to #27205
* Refactors ClientHelper to combine header logic
This change removes all the `*ClientHelper` classes which were
repeating logic between plugins and instead adds
`ClientHelper.executeWithHeaders()` and
`ClientHelper.executeWithHeadersAsync()` methods to centralise the
logic for executing requests with stored security headers.
* Removes Watcher headers constant
When the encrpytion of sensitive date is enabled, test that a
scheduled watch is executed as expected and produces the correct value
from a secret in the basic auth header.
The `ClusterStateWaitStep.isConditionMet()` method now returns a
`Result` object which contains a boolean for if the condition is met
and an `ToXContentObject` to provide information in the case where the
condition is not met.
If the condition is not met, the step information is stored in the
cluster state
Make SSLContext reloadable
This commit replaces all customKeyManagers and TrustManagers
(ReloadableKeyManager,ReloadableTrustManager,
EmptyKeyManager, EmptyTrustManager) with instances of
X509ExtendedKeyManager and X509ExtendedTrustManager.
This change was triggered by the effort to allow Elasticsearch to
run in a FIPS-140 environment. In JVMs running in FIPS approved
mode, only SunJSSE TrustManagers and KeyManagers can be used.
Reloadability is now ensured by a volatile instance of SSLContext
in SSLContectHolder.
SSLConfigurationReloaderTests use the reloadable SSLContext to
initialize HTTP Clients and Servers and use these for testing the
key material and trust relations.
This commit is related to #28898. It adds an nio driven http server
transport. Currently it only supports basic http features. Cors,
pipeling, and read timeouts will need to be added in future PRs.
This commit exposes the master version to the REST test context. This
will be needed in a follow-up where the master version will be used to
determine whether or not a certain warning header is expected.
Due to the way composite aggregation works, ordering in GROUP BY can be
applied only through grouped columns which now the analyzer verifier
enforces.
Fix 29900
This commit removes the SecurityLifecycleService, relegating its former
functions of listening for cluster state updates to SecurityIndexManager
and IndexAuditTrail.
This change adds a grok_pattern field to the GET categories API
output in ML. It's calculated using the regex and examples in the
categorization result, and applying a list of candidate Grok
patterns to the bits in between the tokens that are considered to
define the category.
This can currently be considered a prototype, as the Grok patterns
it produces are not optimal. However, enough people have said it
would be useful for it to be worthwhile exposing it as experimental
functionality for interested parties to try out.
This is fixing an issue that has come up in some builds. In some
scenarios I see an assertion failure that we are trying to move to
application mode when we are not in handshake mode. What I think is
happening is that we are in handshake mode and have received the
completed handshake message AND an application message. While reading in
handshake mode we switch to application mode. However, there is still
data to be consumed so we attempt to continue to read in handshake mode.
This leads to us attempting to move to application mode again throwing
an assertion.
This commit fixes this by immediatly exiting the handshake mode read
method if we are not longer in handshake mode. Additionally if we swap
modes during a read we attempt to read with the new mode to see if there
is data that needs to be handled.
This commit changes the default out-of-the-box configuration for the
number of shards from five to one. We think this will help address a
common problem of oversharding. For users with time-based indices that
need a different default, this can be managed with index templates. For
users with non-time-based indices that find they need to re-shard with
the split API in place they no longer need to resort only to
reindexing.
Since this has the impact of changing the default number of shards used
in REST tests, we want to ensure that we still have coverage for issues
that could arise from multiple shards. As such, we randomize (rarely)
the default number of shards in REST tests to two. This is managed via a
global index template. However, some tests check the templates that are
in the cluster state during the test. Since this template is randomly
there, we need a way for tests to skip adding the template used to set
the number of shards to two. For this we add the default_shards feature
skip. To avoid having to write our docs in a complicated way because
sometimes they might be behind one shard, and sometimes they might be
behind two shards we apply the default_shards feature skip to all docs
tests. That is, these tests will always run with the default number of
shards (one).
The errors were caused because release tests would use a copy of
the public key that was formatted differently. The change to the
public key format was introduced in [1].
Release tests Jenkins job has now been updated to use the correct
key format depending on the branch they run on [2]
Closes#30430
[1] https://github.com/elastic/elasticsearch/pull/30251
[2] https://github.com/elastic/infra/pull/4944
* Adds `index.lifecycle.step_info` setting and uses it on ERROR
This change make a new `index.lifecycle.step_info` setting which can be
used to store a JSON blob of containing context about the current step.
It then adds code so that when we move to the error step we serialise
the exception to JSON and store it in this setting so the user can get
information on why the step failed.
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/LifecycleSettings.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycle.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTaskTests.java
* Adds step information for AsyncWaitSteps
The Listener for AsyncWaitStep now takes a ToXContentObject which
represents information about the status of the condition if it has not
completed. This object is then serialised to a JSON string and stored
in the `index.lifecycle.step_info` index setting. This information is
only stored if the step is not complete. If the step is complete the
step info is ignored sice we will move straight to the next step where
the info is no longer relevant.
Changes for the `ClusterStateWaitStep` will be very similar but will be
made in a following commit after this approach has been agreed. I do
not intend to have information for `AsyncActionStep` to have the
ability to set step info since actions should either be done or not
done and if they error they should transition to the ERROR step.
* Clear step info when transitioning to next step
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
* Addresses review comments
This commit adds the ability to specify a plugin from maven for a
test cluster to use. Currently, only local projects may be used as
plugins, except when testing bwc, where the coordinates of the project
are used. However, that assumes all projects always keep the same
coordinates, or are even still plugins, which is no longer the case for
x-pack. The full cluster and rolling restart tests are changed to use
this new method when pulling x-pack versions before 6.3.0.
Modifies the SQL tests to use the new `Request` object flavored methods
introduced onto the `RestClient` in #29623. We'd like to remove the old
methods eventually so we should stop using them.
Since adding back the per-watch statistics, we do not need to access
every trigger engine implementation to get the current total job count.
This commit removes the unused methods to do so.
Tweak the return data, in particular with regards for ODBC columns to
better align with the spec
Fix order for SYS TYPES and TABLES according to the JDBC/ODBC spec
Fix#30386Fix#30521
This commit cleans up some code in the FileUserPasswdStore and the
FileUserRolesStore classes. The maps used in these classes are volatile
so we need to make sure that we don't perform multiple operations with
the map unless we are sure we are using a reference to the same map.
The maps are also never null, but there were a few null checks in the
code that were not needed. These checks have been removed.
The TokenMetaData equals method compared byte arrays using `.equals` on
the arrays themselves, which is the equivalent of an `==` check. This
means that a seperate byte[] with the same contents would not be
considered equivalent to the existing one, even though it should be.
The method has been updated to use `Array#equals` and similarly the
hashcode method has been updated to call `Arrays#hashCode` instead of
calling hashcode on the array itself.
These tests are both in the file `watcher/stats/10_basic`, and have been
failing fairly frequently over the last month with a start-up issue.
The issue is being tracked in #30298.
Dates internally contain milliseconds (which appear when converting them
to Strings) however parsing does not accept them (and is being strict).
The parser has been changed so that Date is mandatory but the time
(including its fractions such as millis) are optional.
Fix#30002
This commit adds a general state listener to the SecurityIndexManager,
and replaces the existing health and up-to-date listeners with that. It
also moves helper methods relating to health to SecurityIndexManager
from SecurityLifecycleService.
This commit moves the generated-resources directory to be within
the build directory for the openldap-tests and saml-idp-tests
projects. Both projects create a generated-resources directory that
should have been in the build directory but were instead at the same
level as the build directory.
As conformance to best practices, this changes ensures that if a
SAML Response is signed, we verify the signature before processing
it any further. We were only checking the InResponseTo and
Destination attributes before potential signature validation but
there was no reason to do that up front either.
With the opening of xpack, we still retained a run task within
:x-pack:plugin. However, the root level run task also runs with the
default distribution. This change removes the extra run task inside
xpack in favor of using the root level task, and moves the
license/configuration code for run into the main run configuration.
This commit removes the hardcoded list of unconfigured ciphers in the
SslIntegrationTests. This list may include ciphers that are not
supported on certain JVMs. This list is replaced with code that
dynamically computes the set of ciphers that are not configured for
use by default.
Makes most logging at debug rather than warn and error.
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/ExecuteStepsUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleService.java
The HTTPClient used in watcher is based on the apache http client. The
current client is using a lot of defaults - which are not always
optimal. Two of those defaults are the maximum number of total
connections and the maximum number of connections to a single route.
If one of those limits is reached, the HTTPClient waits for a connection
to be finished thus acting in a blocking fashion. In order to prevent
this when many requests are being executed, we increase the limit of
total connections as well as the connections per route (a route is
basically an endpoint, which also contains proxy information, not
containing an URL, just hosts).
On top of that an additional option has been set to evict
long running connections, which can potentially be reused after some
time. As this requires an additional background thread, this required
some changes to ensure that the httpclient is closed properly. Also the
timeout for this can be configured.
This commit renames IndexLifecycleManager to SecurityIndexManager as it
is not actually a general purpose class, but specific to security. It
also removes indirection in code calling the lifecycle service, instead
calling the security index manager directly.
Starting watcher should wait for the watcher to be started before
marking the status as started, which is now done via a callback.
Also, reloading watcher could set the execution service to paused. This could
lead to watches not being executed, when run in tests. This fix does not
change the paused flag in the execution service, just clears out the
current queue and executions.
Closes#30381
Starting watcher should wait for the watcher to be started before
marking the status as started, which is now done via a callback.
Also, reloading watcher could set the execution service to paused. This could
lead to watches not being executed, when run in tests. This fix does not
change the paused flag in the execution service, just clears out the
current queue and executions.
Closes#30381
* master: (35 commits)
DOCS: Correct mapping tags in put-template api
DOCS: Fix broken link in the put index template api
Add put index template api to high level rest client (#30400)
Relax testAckedIndexing to allow document updating
[Docs] Add snippets for POS stop tags default value
Move respect accept header on no handler to 6.3.1
Respect accept header on no handler (#30383)
[Test] Add analysis-nori plugin to the vagrant tests
[Docs] Fix bad link
[Docs] Fix end of section in the korean plugin docs
Expose the Lucene Korean analyzer module in a plugin (#30397)
Docs: remove transport_client from CCS role example (#30263)
[Rollup] Validate timezone in range queries (#30338)
Use readFully() to read bytes from CipherInputStream (#28515)
Fix docs Recently merged #29229 had a doc bug that broke the doc build. This commit fixes.
Test: remove cluster permission from CCS user (#30262)
Add Get Settings API support to java high-level rest client (#29229)
Watcher: Remove unneeded index deletion in tests
Set the new lucene version for 6.4.0
[ML][TEST] Clean up jobs in ModelPlotIT
...
Today when processing a request for a URL path for which we can not find
a handler we send back a plain-text response. Yet, we have the accept
header in our hand and can respect the accepted media type of the
request. This commit addresses this.
This commit removes the unnecessary transport_client cluster permission
from the role that is used as an example in our documentation. This
permission is not needed to use cross cluster search.
When validating the search request, we make sure any date_histogram
aggregations have timezones that match the jobs. But we didn't
do any such validation on range queries.
While it wouldn't produce incorrect results, it would be confusing
to the user as no documents would match the aggregation (because we
add a filter clause on the timezone for the agg).
Now the user gets an exception up front, and some helpful text about
why the range query didnt match, and which timezones are acceptable
This commit updates the multi cluster search test with security so that
the user that is simply performing a multi cluster search does not have
any cluster permissions. This is done as none are needed by this user
and excess privileges could mask a behavior change.
Upgrade to lucene-7.4.0-snapshot-1ed95c097b
This version contains:
* An Analyzer for Korean
* An IntervalQuery and IntervalsSource that retrieve minimum intervals of positional queries.
* A new API to retrieve matches (offsets and positions) of a query for a single document.
* Support for soft deletes in the index writer.
* A fixed shingle filter that handles index time synonyms.
* Support for emoji sequence in ICUTokenizer (with an upgrade to icu 61.1)
When the watcher service pauses execution due to a cluster state update,
the trigger service and its engines also need to pause properly instead
of keeping going. This is also important when the .watches index is
deleted, so that watches don't stay in a triggered mode.
The IndexAndAliasesResolver resolves the indices and aliases for each
request and also handles local and remote indices. The current
implementation uses the ResolvedIndices class to hold the resolved
indices and aliases. While evaluating the indices and aliases against
the user's permissions, the final value for ResolvedIndices is
constructed. Prior to this change, this was done by creating a
ResolvedIndices for the first set of indices and for each additional
addition, a new ResolvedIndices object is created and merged with
the existing one. With a small number of indices and aliases this does
not pose a large problem; however as the number of indices/aliases
grows more list allocations and array copies are needed resulting in a
large amount of garbage and severely impacted performance.
This change introduces a builder for ResolvedIndices that appends to
mutable lists until the final value has been constructed, which will
ultimately reduce the amount of garbage generated by this code.
QA tests that use security need to use a trial license instead of a
basic license. Basic licenses do not enable security so these tests are
not running in the expected configuration. This can also lead to issues
that seem completely unrelated such as authentication failures right
after cluster formation.
The authentication failure right after cluster formation happens since
a request makes it past the authentication license checks and the
request starts the authentication process. During authentication the
cluster forms and the license is updated to a basic license, which
disables all realms. The request that is being authenticated then tries
to iterate over the realms, but the realms are empty and the request
cannot be authenticated. This results in a authentication failure even
though the credentials provided are correct.
Closes#30306
When dealing with filtering, a composite aggregation might return empty
buckets (which have been filtered) which gets sent as is to the client.
Unfortunately this interprets the response as no more data instead of
retrying.
This now has changed and the listener keeps retrying until either the
query has ended or data passes the filter.
Fix#30292
This commit fixes an issue with the data diagnostics were
empty buckets are not reported even though they should. Once
a job is reopened, the diagnostics do not get initialized from
the current data counts (especially the latest record timestamp).
The result is that if the data that is sent have a time gap compared
to the previous ones, that gap is not accounted for in the empty bucket
count.
This commit fixes that by initializing the diagnostics with the current
data counts.
Closes#30080
really bad happens
If the `onFailure()` method is called on the cluster state task then
something bad happened that we can't really deal with so this change
throws an ElasticsearchException in that case and the step will be
re-executed when the policy is next triggered. If we can't submit a
cluster state task then we can't move to the error state so there isn't
really anything else we can do here. If the cluster state task fails
like this there are probably bigger issues witht he cluster anyway.
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/ExecuteStepsUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToNextStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/ClusterStateUpdateStepTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/ExecuteStepsUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToNextStepUpdateTaskTests.java
Each test now has its own watch id that is being used.
This ensures there are no old history entries, which can potentially
lead to broken test assertions.
* Adds infrastructure for dealing with errors in step execution
This change adds a new ErrorStep which a step can move to if it
encounters an error it cannot automatically recover from by retrying on
the next execution. The error step is special in that it cannot
complete. The intention is that the user will need to call an API to man
ually mocve the step in order to progress the index's lifecycle. The
error step retains the phase and action names of the step before it but
with the step name set to `ERROR`. For this reason no ordinary step can
have this name. `AbstractStepTestCase.testStepNameNotError()` ensures
that no step uses `ERROR` as the step name for either its stepKey or
its nextStepKey.
The new `index.lifecycle.failed_step` setting is used
to store the name of the failed step so the user can know in which step
the error occured. More error information will be added shortly.
The async steps will now move to the error step if listener.onFailure()
is called.
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/LifecycleSettings.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/ErrorStep.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistry.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/ErrorStepTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToNextStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistryTests.java
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStep.java
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/LifecycleSettings.java
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/indexlifec
ycle/AbstractStepTestCase.java
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStepTests.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistry.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToNextStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistryTests.java
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStep.java
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/LifecycleSettings.java
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/indexlifec
ycle/AbstractStepTestCase.java
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStepTests.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTask.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistry.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToErrorStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/MoveToNextStepUpdateTaskTests.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/PolicyStepsRegistryTests.java
* Addresses review comments
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStep.java
x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/indexlifec
ycle/ErrorStepTests.java
x-pack/plugin/index-lifecycle/src/main/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunner.java
x-pack/plugin/index-lifecycle/src/test/java/org/elasticsearch/xpack/inde
xlifecycle/IndexLifecycleRunnerTests.java
The current implementation starts/stops watcher using an executor. This
can result in our of order operations.
This commit reduces those executor calls to an absolute minimum in order
to be able to do state changes within the cluster state listener method,
which runs in sequence.
When a state change occurs that forces the watcher service to pause
(like no watcher index, no master node, no local shards), the service is
now in a paused state.
Pausing is a super lightweight operation, which marks the
ExecutionService as paused and waits for the currently executing watches
to finish in the background via an executor. The same applies for
stopping, the potentially long running operation is outsourced in to an
executor, as waiting for executed watches is decoupled from the current
state.
The only other long running operation is starting, where watches need to
be loaded. This is also done via an executor, but has an additional
protection by checking the cluster state version it was started with. If
another cluster state version was trying to load the watches, then this
loading will not take effect.
This PR also cleans up some unused states, like the a simple boolean in
the HistoryStore/TriggeredWatchStore marking it as started or stopped,
as this can now be caught in the execution service.
Another advantage of this approach is the fact, that now only triggered
watches are not getting executed, while watches that are run via the
Execute Watch API will still be executed regardless if watcher is
stopped or not.
Lastly the TickerScheduleTriggerEngine thread now only starts on data nodes.
lcawl
Tal Levy
Dimitris Athanasiou
Christoph Büscher
David Roberts
Tim Vernum
Ioannis Kakavas
Alexander Reelsen
Ryan Ernst
Igor Motov
jaymode
Van0SS
Colin Goodheart-Smithe
David Kyle
Tim Brooks
Jason Tedor
Costin Leau
Costin Leau
Ioannis Kakavas
Yannick Welsch
Tim Vernum
Nik Everett
Jay Modi
Julie Tibshirani
Nhat Nguyen
Jack Conradson
Alpar Torok
Zachary Tong
Jim Ferenczi
Andy Bristol