Commit Graph

2162 Commits

Author SHA1 Message Date
Armin Braun 73e266b2fd
Fix Failures when Closing Indices in EsBlobStoreRepositoryIntegTestCase (#45532) (#45614)
* Same issue as in #44754 as far as I can see: in case of async translog persistence we randomly fail to close
* Closes #45335 
* Closes #45334
2019-08-15 19:45:17 +02:00
Alpar Torok 03a1645bc6 Use dynamic port ranges for ExternalTestCluster (#45601)
Moves methods added in #44213 and uses them to configure the port range
for `ExternalTestCluster` too.
These were still using `9300-9400` ( teh default ) and running into
races.
2019-08-15 16:40:12 +03:00
Nick Knize 647a8308c3
[SPATIAL] Backport new ShapeFieldMapper and ShapeQueryBuilder to 7x (#45363)
* Introduce Spatial Plugin (#44389)

Introduce a skeleton Spatial plugin that holds new licensed features coming to 
Geo/Spatial land!

* [GEO] Refactor DeprecatedParameters in AbstractGeometryFieldMapper (#44923)

Refactor DeprecatedParameters specific to legacy geo_shape out of
AbstractGeometryFieldMapper.TypeParser#parse.

* [SPATIAL] New ShapeFieldMapper for indexing cartesian geometries (#44980)

Add a new ShapeFieldMapper to the xpack spatial module for
indexing arbitrary cartesian geometries using a new field type called shape.
The indexing approach leverages lucene's new XYShape field type which is
backed by BKD in the same manner as LatLonShape but without the WGS84
latitude longitude restrictions. The new field mapper builds on and
extends the refactoring effort in AbstractGeometryFieldMapper and accepts
shapes in either GeoJSON or WKT format (both of which support non geospatial
geometries).

Tests are provided in the ShapeFieldMapperTest class in the same manner
as GeoShapeFieldMapperTests and LegacyGeoShapeFieldMapperTests.
Documentation for how to use the new field type and what parameters are
accepted is included. The QueryBuilder for searching indexed shapes is
provided in a separate commit.

* [SPATIAL] New ShapeQueryBuilder for querying indexed cartesian geometry (#45108)

Add a new ShapeQueryBuilder to the xpack spatial module for
querying arbitrary Cartesian geometries indexed using the new shape field
type.

The query builder extends AbstractGeometryQueryBuilder and leverages the
ShapeQueryProcessor added in the previous field mapper commit.

Tests are provided in ShapeQueryTests in the same manner as
GeoShapeQueryTests and docs are updated to explain how the query works.
2019-08-14 16:35:10 -05:00
Nhat Nguyen 4fcf7bbd07 Do not hold writeLock while verifying Lucene/translog
We should not hold Engine#writeLock while executing
assertConsistentHistoryBetweenTranslogAndLuceneIndex
for this check might acquire Engine#readLock.

Relates #45461
2019-08-13 16:16:06 -04:00
Nhat Nguyen 24514275c7 Get max_seq_no after snapshot translog and Lucene (#45461)
We should capture max_seq_no after snapshotting translog and Lucene;
otherwise, that max_seq_no can be smaller some operation in translog or
Lucene. With this change, we also hold the Engine#writeLock during this
check so that no indexing can happen.

Closes #45454
2019-08-13 16:16:06 -04:00
Nhat Nguyen 25c6102101 Trim local translog in peer recovery (#44756)
Today, if an operation-based peer recovery occurs, we won't trim
translog but leave it as is. Some unacknowledged operations existing in
translog of that replica might suddenly reappear when it gets promoted.
With this change, we ensure trimming translog above the starting
sequence number of phase 2. This change can allow us to read translog
forward.
2019-08-10 22:59:02 -04:00
Armin Braun 12ed6dc999
Only retain reasonable history for peer recoveries (#45208) (#45355)
Today if a shard is not fully allocated we maintain a retention lease for a
lost peer for up to 12 hours, retaining all operations that occur in that time
period so that we can recover this replica using an operations-based recovery
if it returns. However it is not always reasonable to perform an
operations-based recovery on such a replica: if the replica is a very long way
behind the rest of the replication group then it can be much quicker to perform
a file-based recovery instead.

This commit introduces a notion of "reasonable" recoveries. If an
operations-based recovery would involve copying only a small number of
operations, but the index is large, then an operations-based recovery is
reasonable; on the other hand if there are many operations to copy across and
the index itself is relatively small then it makes more sense to perform a
file-based recovery. We measure the size of the index by computing its number
of documents (including deleted documents) in all segments belonging to the
current safe commit, and compare this to the number of operations a lease is
retaining below the local checkpoint of the safe commit. We consider an
operations-based recovery to be reasonable iff it would involve replaying at
most 10% of the documents in the index.

The mechanism for this feature is to expire peer-recovery retention leases
early if they are retaining so much history that an operations-based recovery
using that lease would be unreasonable.

Relates #41536
2019-08-09 01:56:32 +02:00
Tim Brooks af908efa41
Disable netty direct buffer pooling by default (#44837)
Elasticsearch does not grant Netty reflection access to get Unsafe. The
only mechanism that currently exists to free direct buffers in a timely
manner is to use Unsafe. This leads to the occasional scenario, under
heavy network load, that direct byte buffers can slowly build up without
being freed.

This commit disables Netty direct buffer pooling and moves to a strategy
of using a single thread-local direct buffer for interfacing with sockets.
This will reduce the memory usage from networking. Elasticsearch
currently derives very little value from direct buffer usage (TLS,
compression, Lucene, Elasticsearch handling, etc all use heap bytes). So
this seems like the correct trade-off until that changes.
2019-08-08 15:10:31 -06:00
David Turner 355713b9ca
Improve slow logging in MasterService (#45241)
Adds a tighter threshold for logging a warning about slowness in the
`MasterService` instead of relying on the cluster service's 30-second warning
threshold. This new threshold applies to the computation of the cluster state
update in isolation, so we get a warning if computing a new cluster state
update takes longer than 10 seconds even if it is subsequently applied quickly.
It also applies independently to the length of time it takes to notify the
cluster state tasks on completion of publication, in case any of these
notifications holds up the master thread for too long.

Relates #45007
Backport of #45086
2019-08-06 17:01:49 +01:00
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
Yannick Welsch 7aeb2fe73c Add per-socket keepalive options (#44055)
Uses JDK 11's per-socket configuration of TCP keepalive (supported on Linux and Mac), see
https://bugs.openjdk.java.net/browse/JDK-8194298, and exposes these as transport settings.
By default, these options are disabled for now (i.e. fall-back to OS behavior), but we would like
to explore whether we can enable them by default, in particular to force keepalive configurations
that are better tuned for running ES.
2019-08-06 10:45:44 +02:00
Zachary Tong 3df1c76f9b Allow pipeline aggs to select specific buckets from multi-bucket aggs (#44179)
This adjusts the `buckets_path` parser so that pipeline aggs can
select specific buckets (via their bucket keys) instead of fetching
the entire set of buckets.  This is useful for bucket_script in
particular, which might want specific buckets for calculations.

It's possible to workaround this with `filter` aggs, but the workaround
is hacky and probably less performant.

- Adjusts documentation
- Adds a barebones AggregatorTestCase for bucket_script
- Tweaks AggTestCase to use getMockScriptService() for reductions and
pipelines.  Previously pipelines could just pass in a script service
for testing, but this didnt work for regular aggs.  The new
getMockScriptService() method fixes that issue, but needs to be used
for pipelines too.  This had a knock-on effect of touching MovFn,
AvgBucket and ScriptedMetric
2019-08-05 12:18:40 -04:00
David Turner 13a167051f
Remove fileBasedRecovery flag (#45146)
Today `RecoveryTarget#prepareForTranslogOperations` takes a boolean flag
indicating whether the recovery is file-based or not. This was used in 6.x to
bootstrap some commit data that were missing in indices created in 5.x:

b506955f8d/server/src/main/java/org/elasticsearch/indices/recovery/RecoveryTarget.java (L298-L300)

This flag no longer has any effect, so this commit removes it.

Backport of #45131 to 7.x.
2019-08-05 08:17:40 +01:00
Tim Brooks 984ba82251
Move nio channel initialization to event loop (#45155)
Currently in the transport-nio work we connect and bind channels on the
a thread before the channel is registered with a selector. Additionally,
it is at this point that we set all the socket options. This commit
moves these operations onto the event-loop after the channel has been
registered with a selector. It attempts to set the socket options for a
non-server channel at registration time. If that fails, it will attempt
to set the options after the channel is connected. This should fix
#41071.
2019-08-02 17:31:31 -04:00
David Turner 9ff320d967
Use index for peer recovery instead of translog (#45137)
Today we recover a replica by copying operations from the primary's translog.
However we also retain some historical operations in the index itself, as long
as soft-deletes are enabled. This commit adjusts peer recovery to use the
operations in the index for recovery rather than those in the translog, and
ensures that the replication group retains enough history for use in peer
recovery by means of retention leases.

Reverts #38904 and #42211
Relates #41536
Backport of #45136 to 7.x.
2019-08-02 15:00:43 +01:00
Armin Braun 9450505d5b
Stop Passing Around REST Request in Multiple Spots (#44949) (#45109)
* Stop Passing Around REST Request in Multiple Spots

* Motivated by #44564
  * We are currently passing the REST request object around to a large number of places. This works fine since we simply copy the full request content before we handle the rest itself which is needlessly hard on GC and heap.
  * This PR removes a number of spots where the request is passed around needlessly. There are many more spots to optimize in follow-ups to this, but this one would already enable bypassing the request copying for some error paths in a follow up.
2019-08-02 07:31:38 +02:00
David Turner c088bafbbc Wait for events in waitForRelocation (#45074)
Adds a `waitForEvents(Priority.LANGUID)` to the cluster health request in
`ESIntegTestCase#waitForRelocation()` to deal with the case that this health
request returns successfully despite the fact that there is a pending reroute task which
will relocate another shard.

Relates #44433
Fixes #45003
2019-08-01 13:47:39 +01:00
Nhat Nguyen 979d0a71c7 Remove leniency during replay translog in peer recovery (#44989)
This change removes leniency in InternalEngine during replaying translog
in peer recovery.
2019-07-30 13:25:15 -04:00
Armin Braun 548c767b6b
S3 3rd Party Test Goal (#44799) (#45004)
* Create S3 Third Party Test Task that Covers the S3 CLI Tool
* Adjust snapshot cli test tool tests to work with real S3
  * Build adjustment
  * Clean up repo path before testing
* Dedup the logic for asserting path contents by using the correct utility method here that somehow became unused
2019-07-30 17:16:41 +02:00
David Turner 55f1dd8da6 Close nodes properly in Coordinator tests (#44967)
Today closing a `ClusterNode` in an `AbstractCoordinatorTestCase` uses
`onNode()` so has no effect if the node is not in the current list of nodes.
It also discards the `Runnable` it creates without having run it, so has no
effect anyway.

This commit makes these tests much stricter about properly closing the nodes
started during `Coordinator` tests, by tracking the persisted states that are
opened, and adds an assertion to catch the trappy requirement that the closing
node still belongs to the cluster.
2019-07-30 11:47:36 +01:00
Andrey Ershov 5a0bd696fc
Snapshot tool S3 cleanup 7.x backport (#44575)
Backport of #44551
2019-07-30 11:02:08 +02:00
Nhat Nguyen 4813728783 Remove leniency in reset engine from translog (#44711)
Replaying operations from the local translog must never fail as those
operations were processed successfully on the primary before and the
mapping is up to update already. This change removes leniency during
resetting engine from translog in IndexShard and InternalEngine.
2019-07-29 16:31:45 -04:00
Yannick Welsch 8653c33838 Fix testBlockingIncomingRequests (#44939)
Adapted test to take non-blocking nature into account.
2019-07-29 16:37:53 +02:00
Yannick Welsch 24873dd3e3 Do not block transport thread on startup (#44939)
We currently block the transport thread on startup, which has caused test failures. I think this is
some kind of deadlock situation. I don't think we should even block a transport thread, and
there's also no need to do so. We can just reject requests as long we're not fully set up. Note
that the HTTP layer is only started much later (after we've completed full start up of the
transport layer), so that one should be completely unaffected by this.

Closes #41745
2019-07-29 11:35:17 +02:00
Jason Tedor 6ea2b5dec0
Deprecate setting processors to more than available (#44889)
Today the processors setting is permitted to be set to more than the
number of processors available to the JVM. The processors setting
directly sizes the number of threads in the various thread pools, with
most of these sizes being a linear function in the number of
processors. It doesn't make any sense to set processors very high as the
overhead from context switching amongst all the threads will overwhelm,
and changing the setting does not control how many physical CPU
resources there are on which to schedule the additional threads. We have
to draw a line somewhere and this commit deprecates setting processors
to more than the number of available processors. This is the right place
to draw the line given the linear growth as a function of processors in
most of the thread pools, and that some are capped at the number of
available processors already.
2019-07-26 17:06:44 +09:00
Yannick Welsch 0ce841915c Add Clone Index API (#44267)
Adds an API to clone an index. This is similar to the index split and shrink APIs, just with the
difference that the number of primary shards is kept the same. In case where the filesystem
provides hard-linking capabilities, this is a very cheap operation.

Indexing cloning can be done by running `POST my_source_index/_clone/my_target_index` and it
supports the same options as the split and shrink APIs.

Closes #44128
2019-07-25 22:02:28 +02:00
Andrei Stefan 2633d11eb7
Switch from using docvalue_fields to extracting values from _source (#44062) (#44804)
* Switch from using docvalue_fields to extracting values from _source
where applicable. Doing this means parsing the _source and handling the
numbers parsing just like Elasticsearch is doing it when it's indexing
a document.
* This also introduces a minor limitation: aliases type of fields that
are NOT part of a tree of sub-fields will not be able to be retrieved
anymore. field_caps API doesn't shed any light into a field being an
alias or not and at _source parsing time there is no way to know if a
root field is an alias or not. Fields of the type "a.b.c.alias" can be
extracted from docvalue_fields, only if the field they point to can be
extracted from docvalue_fields. Also, not all fields in a hierarchy of
fields can be evaluated to being an alias.

(cherry picked from commit 8bf8a055e38f00df5f49c8d97f632f69d6e00c2c)
2019-07-25 10:02:41 +03:00
Igor Motov f9943a3e53 Geo: deprecate ShapeBuilder in QueryBuilders (#44715)
Removes unnecessary now timeline decompositions from shape builders
and deprecates ShapeBuilders in QueryBuilder in favor of libs/geo
shapes.

Relates to #40908
2019-07-24 14:27:58 -04:00
Armin Braun d8be9244f9
Fix Repository Cleanup Test Correctness (#44738) (#44751)
* The tests were creating the corruption and asserting its existence not on the repository base path but on a clean path.
As a result the consistency assertion on the repository wouldn't see the corruption ever an pass even if the cleanup was broken for repositories that have a non-root base path
2019-07-24 16:03:37 +02:00
Armin Braun 818103ff1e
Fix testRetentionLeasesClearedOnRestore (#44754) (#44766)
* Fix this test randomly failing when running into async translog persistence edge case and failing to successfully close index
* Also, slightly improve debug logging on close failure
* Closes #44681
2019-07-23 21:29:07 +02:00
Igor Motov 9338fc8536 GEO: Switch to using GeoTestUtil to generate random geo shapes (#44635)
Switches to more robust way of generating random test geometries by
reusing lucene's GeoTestUtil. Removes duplicate random geometry
generators by moving them to the test framework.

Closes #37278
2019-07-23 14:30:41 -04:00
Mayya Sharipova 972a49312c Fix testQuotedQueryStringWithBoost test (#43385)
Add more logging to indexRandom

Seems that asynchronous indexing from indexRandom sometimes indexes
the same document twice, which will mess up the expected score calculations.

For example, indexing:
{ "index" : {"_id" : "1" } }
{"important" :"phrase match", "less_important": "nothing important"}
{ "index" : {"_id" : "2" } }
{"important" :"nothing important", "less_important" :"phrase match"}
Produces the expected scores: 13.8 for doc1, and 1.38 for doc2

indexing:
{ "index" : {"_id" : "1" } }
{"important" :"phrase match", "less_important": "nothing important"}
{ "index" : {"_id" : "2" } }
{"important" :"nothing important", "less_important" :"phrase match"}
{ "index" : {"_id" : "3" } }
{"important" :"phrase match", "less_important": "nothing important"}
Produces scores: 9.4 for doc1, and 1.96 for doc2 which are found in the
error logs.

Relates to #43144
2019-07-22 08:44:31 -04:00
Ryan Ernst 4c05d25ec7
Convert Transport Request/Response to Writeable (#44636) (#44654)
This commit converts all remaining TransportRequest and
TransportResponse classes to implement Writeable, and disallows
Streamable implementations.

relates #34389
2019-07-20 11:25:58 -07:00
Ryan Ernst f4ee2e9e91
Convert direct implementations of Streamable to Writeable (#44605) (#44646)
This commit converts Streamable to Writeable for direct implementations.

relates #34389
2019-07-20 08:32:29 -07:00
Ryan Ernst f193d14764
Convert remaining Action Response/Request to writeable.reader (#44528) (#44607)
This commit converts readFrom to ctor with StreamInput on the remaining
ActionResponse and ActionRequest classes.

relates #34389
2019-07-19 13:33:38 -07:00
Lee Hinman fe2ef66e45 Expose index age in ILM explain output (#44457)
* Expose index age in ILM explain output

This adds the index's age to the ILM explain output, for example:

```
{
  "indices" : {
    "ilm-000001" : {
      "index" : "ilm-000001",
      "managed" : true,
      "policy" : "full-lifecycle",
      "lifecycle_date" : "2019-07-16T19:48:22.294Z",
      "lifecycle_date_millis" : 1563306502294,
      "age" : "1.34m",
      "phase" : "hot",
      "phase_time" : "2019-07-16T19:48:22.487Z",
      ... etc ...
    }
  }
}
```

This age can be used to tell when ILM will transition the index to the
next phase, based on that phase's `min_age`.

Resolves #38988

* Expose age in getters and in HLRC
2019-07-18 15:33:45 -06:00
Andrey Ershov ef6ddd15c6 Revert "Snapshot tool: S3 orphaned files
cleanup (#44551)"

This reverts commit 09edeeb3
2019-07-18 17:21:45 +02:00
Andrey Ershov 6f5327ba45 Fix BlobStoreTestUtil 2019-07-18 17:00:23 +02:00
Andrey Ershov 09edeeb38e Snapshot tool: S3 orphaned files cleanup (#44551)
A tool to work with snapshots.
Co-authored by @original-brownbear.
This commit adds snapshot tool and the single command cleanup, that
cleans up orphaned files for S3.
Snapshot tool lives in x-pack/snapshot-tool.

(cherry picked from commit fc4aed44dd975d83229561090f957a95cc76b287)
2019-07-18 16:38:00 +02:00
David Turner 452f7f67a0
Defer reroute when starting shards (#44539)
Today we reroute the cluster as part of the process of starting a shard, which
runs at `URGENT` priority. In large clusters, rerouting may take some time to
complete, and this means that a mere trickle of shard-started events can cause
starvation for other, lower-priority, tasks that are pending on the master.

However, it isn't really necessary to perform a reroute when starting a shard,
as long as one occurs eventually. This commit removes the inline reroute from
the process of starting a shard and replaces it with a deferred one that runs
at `NORMAL` priority, avoiding starvation of higher-priority tasks.

Backport of #44433 and #44543.
2019-07-18 14:10:40 +01:00
Nhat Nguyen 51180af91d Make peer recovery send file chunks async (#44468)
Relates #44040
Relates #36195
2019-07-17 22:25:43 -04:00
Nhat Nguyen 458f24c46a Reenable accounting circuit breaker (#44495)
We have a new Lucene 8.2 snapshot on master and 7.x; hence we can
re-enable the accounting on these branches.

Relates #30290
2019-07-17 22:25:43 -04:00
Jason Tedor 39c5f98de7
Introduce test issue logging (#44477)
Today we have an annotation for controlling logging levels in
tests. This annotation serves two purposes, one is to control the
logging level used in tests, when such control is needed to impact and
assert the behavior of loggers in tests. The other use is when a test is
failing and additional logging is needed. This commit separates these
two concerns into separate annotations.

The primary motivation for this is that we have a history of leaving
behind the annotation for the purpose of investigating test failures
long after the test failure is resolved. The accumulation of these stale
logging annotations has led to excessive disk consumption. Having
recently cleaned this up, we would like to avoid falling into this state
again. To do this, we are adding a link to the test failure under
investigation to the annotation when used for the purpose of
investigating test failures. We will add tooling to inspect these
annotations, in the same way that we have tooling on awaits fix
annotations. This will enable us to report on the use of these
annotations, and report when stale uses of the annotation exist.
2019-07-18 05:33:33 +09:00
Yannick Welsch f78e64e3e2 Terminate linearizability check early on large histories (#44444)
Large histories can be problematic and have the linearizability checker occasionally run OOM. As it's
very difficult to bound the size of the histories just right, this PR will let it instead run for 10 seconds
on large histories and then abort.

Closes #44429
2019-07-17 18:51:25 +02:00
Armin Braun c8db0e9b7e
Remove blobExists Method from BlobContainer (#44472) (#44475)
* We only use this method in one place in production code and can replace that with a read -> remove it to simplify the interface
   * Keep it as an implementation detail in the Azure repository
2019-07-17 11:56:02 +02:00
Tim Brooks 0a352486e8
Isolate nio channel registered from channel active (#44388)
Registering a channel with a selector is a required operation for the
channel to be handled properly. Currently, we mix the registeration with
other setup operations (ip filtering, SSL initiation, etc). However, a
fail to register is fatal. This PR modifies how registeration occurs to
immediately close the channel if it fails.

There are still two clear loopholes for how a user can interact with a
channel even if registration fails. 1. through the exception handler.
2. through the channel accepted callback. These can perhaps be improved
in the future. For now, this PR prevents writes from proceeding if the
channel is not registered.
2019-07-16 17:18:57 -06:00
Nhat Nguyen 301c8daf4c Revert "Make peer recovery send file chunks async (#44040)"
This reverts commit a2b4687d89.
2019-07-16 14:18:35 -04:00
Nhat Nguyen a2b4687d89 Make peer recovery send file chunks async (#44040) 2019-07-16 10:43:46 -04:00
Lee Hinman fb0461ac76
[7.x] Add Snapshot Lifecycle Management (#44382)
* Add Snapshot Lifecycle Management (#43934)

* Add SnapshotLifecycleService and related CRUD APIs

This commit adds `SnapshotLifecycleService` as a new service under the ilm
plugin. This service handles snapshot lifecycle policies by scheduling based on
the policies defined schedule.

This also includes the get, put, and delete APIs for these policies

Relates to #38461

* Make scheduledJobIds return an immutable set

* Use Object.equals for SnapshotLifecyclePolicy

* Remove unneeded TODO

* Implement ToXContentFragment on SnapshotLifecyclePolicyItem

* Copy contents of the scheduledJobIds

* Handle snapshot lifecycle policy updates and deletions (#40062)

(Note this is a PR against the `snapshot-lifecycle-management` feature branch)

This adds logic to `SnapshotLifecycleService` to handle updates and deletes for
snapshot policies. Policies with incremented versions have the old policy
cancelled and the new one scheduled. Deleted policies have their schedules
cancelled when they are no longer present in the cluster state metadata.

Relates to #38461

* Take a snapshot for the policy when the SLM policy is triggered (#40383)

(This is a PR for the `snapshot-lifecycle-management` branch)

This commit fills in `SnapshotLifecycleTask` to actually perform the
snapshotting when the policy is triggered. Currently there is no handling of the
results (other than logging) as that will be added in subsequent work.

This also adds unit tests and an integration test that schedules a policy and
ensures that a snapshot is correctly taken.

Relates to #38461

* Record most recent snapshot policy success/failure (#40619)

Keeping a record of the results of the successes and failures will aid
troubleshooting of policies and make users more confident that their
snapshots are being taken as expected.

This is the first step toward writing history in a more permanent
fashion.

* Validate snapshot lifecycle policies (#40654)

(This is a PR against the `snapshot-lifecycle-management` branch)

With the commit, we now validate the content of snapshot lifecycle policies when
the policy is being created or updated. This checks for the validity of the id,
name, schedule, and repository. Additionally, cluster state is checked to ensure
that the repository exists prior to the lifecycle being added to the cluster
state.

Part of #38461

* Hook SLM into ILM's start and stop APIs (#40871)

(This pull request is for the `snapshot-lifecycle-management` branch)

This change allows the existing `/_ilm/stop` and `/_ilm/start` APIs to also
manage snapshot lifecycle scheduling. When ILM is stopped all scheduled jobs are
cancelled.

Relates to #38461

* Add tests for SnapshotLifecyclePolicyItem (#40912)

Adds serialization tests for SnapshotLifecyclePolicyItem.

* Fix improper import in build.gradle after master merge

* Add human readable version of modified date for snapshot lifecycle policy (#41035)

* Add human readable version of modified date for snapshot lifecycle policy

This small change changes it from:

```
...
"modified_date": 1554843903242,
...
```

To

```
...
"modified_date" : "2019-04-09T21:05:03.242Z",
"modified_date_millis" : 1554843903242,
...
```

Including the `"modified_date"` field when the `?human` field is used.

Relates to #38461

* Fix test

* Add API to execute SLM policy on demand (#41038)

This commit adds the ability to perform a snapshot on demand for a policy. This
can be useful to take a snapshot immediately prior to performing some sort of
maintenance.

```json
PUT /_ilm/snapshot/<policy>/_execute
```

And it returns the response with the generated snapshot name:

```json
{
  "snapshot_name" : "production-snap-2019.04.09-rfyv3j9qreixkdbnfuw0ug"
}
```

Note that this does not allow waiting for the snapshot, and the snapshot could
still fail. It *does* record this information into the cluster state similar to
a regularly trigged SLM job.

Relates to #38461

* Add next_execution to SLM policy metadata (#41221)

* Add next_execution to SLM policy metadata

This adds the next time a snapshot lifecycle policy will be executed when
retriving a policy's metadata, for example:

```json
GET /_ilm/snapshot?human
{
  "production" : {
    "version" : 1,
    "modified_date" : "2019-04-15T21:16:21.865Z",
    "modified_date_millis" : 1555362981865,
    "policy" : {
      "name" : "<production-snap-{now/d}>",
      "schedule" : "*/30 * * * * ?",
      "repository" : "repo",
      "config" : {
        "indices" : [
          "foo-*",
          "important"
        ],
        "ignore_unavailable" : true,
        "include_global_state" : false
      }
    },
    "next_execution" : "2019-04-15T21:16:30.000Z",
    "next_execution_millis" : 1555362990000
  },
  "other" : {
    "version" : 1,
    "modified_date" : "2019-04-15T21:12:19.959Z",
    "modified_date_millis" : 1555362739959,
    "policy" : {
      "name" : "<other-snap-{now/d}>",
      "schedule" : "0 30 2 * * ?",
      "repository" : "repo",
      "config" : {
        "indices" : [
          "other"
        ],
        "ignore_unavailable" : false,
        "include_global_state" : true
      }
    },
    "next_execution" : "2019-04-16T02:30:00.000Z",
    "next_execution_millis" : 1555381800000
  }
}
```

Relates to #38461

* Fix and enhance tests

* Figured out how to Cron

* Change SLM endpoint from /_ilm/* to /_slm/* (#41320)

This commit changes the endpoint for snapshot lifecycle management from:

```
GET /_ilm/snapshot/<policy>
```

to:

```
GET /_slm/policy/<policy>
```

It mimics the ILM path only using `slm` instead of `ilm`.

Relates to #38461

* Add initial documentation for SLM (#41510)

* Add initial documentation for SLM

This adds the initial documentation for snapshot lifecycle management.

It also includes the REST spec API json files since they're sort of
documentation.

Relates to #38461

* Add `manage_slm` and `read_slm` roles (#41607)

* Add `manage_slm` and `read_slm` roles

This adds two more built in roles -

`manage_slm` which has permission to perform any of the SLM actions, as well as
stopping, starting, and retrieving the operation status of ILM.

`read_slm` which has permission to retrieve snapshot lifecycle policies as well
as retrieving the operation status of ILM.

Relates to #38461

* Add execute to the test

* Fix ilm -> slm typo in test

* Record SLM history into an index (#41707)

It is useful to have a record of the actions that Snapshot Lifecycle
Management takes, especially for the purposes of alerting when a
snapshot fails or has not been taken successfully for a certain amount of
time.

This adds the infrastructure to record SLM actions into an index that
can be queried at leisure, along with a lifecycle policy so that this
history does not grow without bound.

Additionally,
SLM automatically setting up an index + lifecycle policy leads to
`index_lifecycle` custom metadata in the cluster state, which some of
the ML tests don't know how to deal with due to setting up custom
`NamedXContentRegistry`s.  Watcher would cause the same problem, but it
is already disabled (for the same reason).

* High Level Rest Client support for SLM (#41767)

* High Level Rest Client support for SLM

This commit add HLRC support for SLM.

Relates to #38461

* Fill out documentation tests with tags

* Add more callouts and asciidoc for HLRC

* Update javadoc links to real locations

* Add security test testing SLM cluster privileges (#42678)

* Add security test testing SLM cluster privileges

This adds a test to `PermissionsIT` that uses the `manage_slm` and `read_slm`
cluster privileges.

Relates to #38461

* Don't redefine vars

*  Add Getting Started Guide for SLM  (#42878)

This commit adds a basic Getting Started Guide for SLM.

* Include SLM policy name in Snapshot metadata (#43132)

Keep track of which SLM policy in the metadata field of the Snapshots
taken by SLM. This allows users to more easily understand where the
snapshot came from, and will enable future SLM features such as
retention policies.

* Fix compilation after master merge

* [TEST] Move exception wrapping for devious exception throwing

Fixes an issue where an exception was created from one line and thrown in another.

* Fix SLM for the change to AcknowledgedResponse

* Add Snapshot Lifecycle Management Package Docs (#43535)

* Fix compilation for transport actions now that task is required

* Add a note mentioning the privileges needed for SLM (#43708)

* Add a note mentioning the privileges needed for SLM

This adds a note to the top of the "getting started with SLM"
documentation mentioning that there are two built-in privileges to
assist with creating roles for SLM users and administrators.

Relates to #38461

* Mention that you can create snapshots for indices you can't read

* Fix REST tests for new number of cluster privileges

* Mute testThatNonExistingTemplatesAreAddedImmediately (#43951)

* Fix SnapshotHistoryStoreTests after merge

* Remove overridden newResponse functions that have been removed

* Fix compilation for backport

* Fix get snapshot output parsing in test

* [DOCS] Add redirects for removed autogen anchors (#44380)

* Switch <tt>...</tt> in javadocs for {@code ...}
2019-07-16 07:37:13 -06:00
Armin Braun 099d52f3b0
Prevent Confusing Blocked Thread Warnings in MockNioTransport (#44356) (#44376)
* Prevent Confusing Blocked Thread Warnings in MockNioTransport

* We can run into a race where the stacktrace collection and subsequent logging happens after the thread has already unblocked thus logging a confusing stacktrace of wherever the transport thread was after it became unblocked
* Fixed this by comparing whether or not the recorded timestamp is still the same before and after the stacktrace was recorded and not logging if it already changed
2019-07-16 04:40:50 +02:00