Commit Graph

54120 Commits

Author SHA1 Message Date
Nhat Nguyen 25fbc01459 Retry CCR shard follow task when no seed node left (#63225)
If the connection between clusters is disconnected or the leader cluster
is offline, then CCR shard-follow tasks can stop with "no seed node
left". CCR should retry on this error.
2020-10-05 21:56:56 -04:00
Armin Braun 5c3a4c13dd
Clone Snapshot API (#61839) (#63291)
Snapshot clone API. Complete except for some TODOs around documentation (and adding HLRC support).

backport of #61839, #63217, #63037
2020-10-06 01:52:25 +02:00
Ryan Ernst 25f8a3ba42
Switch bundled jdk back to Oracle JDK (#63288) (#63290)
We switched to adoptopenjdk from oracle jdk to rely on the notarization
found in adoptopnejdk on MacOS. However, that notarization still had
issues, and we currently do our own notarization of the entire
distribution, including the jdk. The recent bump to jdk 15 has revealed
openjdk to be lax in maintaining support for older systems. Since the
notarization is no longer an issue, this PR moves the bundled jdk back
to Oracle, in order to continue supporting those older systems affected
by adoptopenjdk 15.

relates #62709
2020-10-05 16:31:10 -07:00
Armin Braun e91936512a
Refactor SnapshotsInProgress State Transitions (#60517) (#63266)
The copy constructors previously used were hard to read and the exact state changes
were not obvious at all.
Refactored those into a number of named constructors instead, added additional assertions
and moved the snapshot abort logic into `SnapshotsInProgress`.
2020-10-06 00:03:42 +02:00
Armin Braun 860791260d
Implement Shard Snapshot Clone Logic (#62771) (#63260)
First part of the snapshot clone logic that implements the snapshot clone functionality on
the repository level.
2020-10-05 22:55:52 +02:00
Costin Leau d027e24b31 EQL: Remove match functions (#63275)
Since match (for matching regex) is not currently in use remove it for
now.

Close #63263

(cherry picked from commit 6abd531cf457f3c5686f59709647bed3276e3c6b)
2020-10-05 23:30:41 +03:00
Costin Leau 6856306dcf EQL: Remove wildcard functionality from : (#63276)
Restrict : operator to only case insensitive matching on strings

Close #63262

(cherry picked from commit bc02e77150cdd85594dfac4f03d8aeb85aaddbb3)
2020-10-05 23:30:41 +03:00
Lisa Cawley 22aea11016 [DOCS] Add experimental tag to rollup APIs (#63206) 2020-10-05 13:22:11 -07:00
James Rodewig df0861348c
[DOCS] Document static/dynamic watcher settings (#62218) (#63282) 2020-10-05 15:50:01 -04:00
James Rodewig a8bf9a6a91
[DOCS] Make EQL case-sensitive by default (#63270) (#63280) 2020-10-05 15:49:48 -04:00
Andrei Stefan 76bba601ab
Remove case_sensitive request option (#63218) (#63244)
Make EQL case sensitive by default and adapt some of the string functions
Remove the case sensitive option from Between string function
Add case_insensitive option to term and wildcard queries usage

(cherry picked from commit 7550e0664c8c2f1f13519036c759b1e76345551f)
2020-10-05 22:04:42 +03:00
Nhat Nguyen 1a6837883a Upgrade to Lucene-8.7.0-snapshot-77396dbf339 (#63222)
Includes LUCENE-9554, which exposes the pendingNumDocs from IndexWriter.
2020-10-05 14:39:30 -04:00
Lisa Cawley ce23c38e96
[DOCS] Add find file structure API to HLRC docs (#63212) (#63261) 2020-10-05 11:37:44 -07:00
Nik Everett 7f07deb8d8 Skip broken test
In #63242 we changed how we build `nextRoundingValue` to, well, be
correct. But the old `org.elasticsearch.common.rounding.Rounding`
implementation didn't get the fix. Which is fine, because it doesn't
that method on that implementation doesn't receive any use outside of
tests. In fact, it is entirely removed in master. Anyway, now that the
two implementation produce different values we really can't go around
asserting that they produce the same values now can we? Well, we were!
This skips that assertion if we know `nextRoundingValue` is implemented
differently.

Closes #63256
2020-10-05 14:25:53 -04:00
Stuart Tettemer 791a9d5102
Scripting: enable regular expressions by default (#63029) (#63272)
* Setting `script.painless.regex.enabled` has a new option,
  `use-factor`, the default.  This defaults to using regular
  expressions but limiting the complexity of the regular
  expressions.

  In addition to `use-factor`, the setting can be `true`, as
  before, which enables regular expressions without limiting them.

  `false` totally disables regular expressions, which was the
  old default.

* New setting `script.painless.regex.limit-factor`.  This limits
  regular expression complexity by limiting the number characters
  a regular expression can consider based on input length.

  The default is `6`, so a regular expression can consider
  `6` * input length number of characters.  With input
  `foobarbaz` (length `9`), for example, the regular expression
  can consider `54` (`6 * 9`) characters.

  This reduces the impact of exponential backtracking in Java's
  regular expression engine.

* add `@inject_constant` annotation to whitelist.

  This annotation signals that a compiler settings will
  be injected at the beginning of a whitelisted method.

  The format is `argnum=settingname`:
  `1=foo_setting 2=bar_setting`.

  Argument numbers must start at one and must be sequential.

* Augment
  `Pattern.split(CharSequence)`
  `Pattern.split(CharSequence, int)`,
  `Pattern.splitAsStream(CharSequence)`
  `Pattern.matcher(CharSequence)`
  to take the value of `script.painless.regex.limit-factor` as a
  an injected parameter, limiting as explained above when this
  setting is in use.

Fixes: #49873
Backport of: 93f29a4
2020-10-05 13:17:47 -05:00
Jack Conradson d134b4f70b Make location final in IRNode (#63078)
This change makes Location a final member of IRNode as opposed to possibly changing it. This 
ensures that all ir nodes have a Location for error information upon creation that cannot be updated 
so each node can be tracked as where it came from originally.
2020-10-05 10:16:31 -07:00
Armin Braun cf75abb021
Optimize XContentParserUtils.ensureExpectedToken (#62691) (#63253)
We only ever use this with `XContentParser` no need to make it inline
worse by forcing the lambda and hence dynamic callsite here.
=> Extraced the exception formatting code path that is likely very cold
to a separate method and removed the lambda usage in hot loops by simplifying
the signature here.
2020-10-05 19:08:32 +02:00
James Rodewig f4ddb43240
[DOCS] Clarify `allow_no_indices` def (#63209) (#63258) 2020-10-05 13:00:53 -04:00
Armin Braun 51d0ed1bf3
Prepare Snapshot Shard State Update Logic For Clone Logic (#62617) (#63255)
Small refactoring to shorten the diff with the clone logic in #61839:

* Since clones will create a different kind of shard state update that
isn't the same request sent by the snapshot shards service (and cannot be
the same request because we have no `ShardId`) base the shard state updates
on a different class that can be extended to be general enough to accomodate
shard clones as well.
* Make the update executor a singleton (can't make it an inline lambda as that
would break CS update batching because the executor is used as a map key but
this change still makes it crystal clear that there's no internal state to the
executor)
* Make shard state update responses a singleton (can't use TransportResponse.Empty because
we need an action response but still it makes it clear that there's no actual
response with content here)
2020-10-05 18:54:01 +02:00
Armin Braun de6eeecbd3
Dry up Snapshot Integ Tests some More (#62856) (#63248)
* Just some obvious drying up of these super complex tests.
* Mainly just shortening the diff of #61839 here by moving test utilities
to the abstract test case.
Also, making use of the now available functionality to simplify existing tests
and improve logging in them.
2020-10-05 18:33:59 +02:00
David Roberts a522e932e8 Mute RoundingDuelTests.testSerialization
Due to https://github.com/elastic/elasticsearch/issues/63256
2020-10-05 17:22:40 +01:00
Adam Locke 83fcaf4fe7
[DOCS] [7.x] Add PGSync as community-supported integration (#63250)
* Add PGSync as a new community supported tool (#62788)

* Remvoing errant space in Kafka link.

Co-authored-by: Tolu Aina <7848930+toluaina@users.noreply.github.com>
2020-10-05 12:02:23 -04:00
Armin Braun 89de9fdcf7
Cleanup Blobstore Repository Metadata Serialization (#62727) (#63249)
Follow ups to #62684 making use of shorter utility for corruption checks.
2020-10-05 17:44:27 +02:00
Armin Braun 509fa46c9e
Fix Broken Exception Handling in Snapshot Cleanup Tool (#63243)
In the latest version of the GCS SDK the `404` exception is wrapped
in an `IOException` making it not pass to the unwrapping added in
the previous fix #63168.
We can't be handling `IOException` differently here now that GCS uses it
for `404`s so I adjusted the exception unwrapping accordingly.

Closes #63091
2020-10-05 16:50:47 +02:00
Nik Everett 461475f9e9
Make Rounding.nextRoundingValue consistent (backport #62983) (#63242)
"interval" style roundings were implementing `nextRoundingValue` in a
fairly inconsistent way - it'd produce a value, but sometimes that
value would be the same as the previous rounding value. This makes it
consistently the next value that `rounding` would make.
2020-10-05 10:38:20 -04:00
David Roberts 1b32daf37b Mute FullClusterRestartIT.testWatcherWithApiKey (#63241)
Due to https://github.com/elastic/elasticsearch/issues/63088
2020-10-05 15:03:42 +01:00
Nik Everett 77757b28e0
Speed up date_histogram by precomputing ranges (backport of #61467) (#62881)
A few of us were talking about ways to speed up the `date_histogram`
using the index for the timestamp rather than the doc values. To do that
we'd have to pre-compute all of the "round down" points in the index. It
turns out that *just* precomputing those values speeds up rounding
fairly significantly:
```
Benchmark  (count)      (interval)                   (range)            (zone)  Mode  Cnt          Score         Error  Units
before    10000000  calendar month  2000-10-28 to 2000-10-31               UTC  avgt   10   96461080.982 ±  616373.011  ns/op
before    10000000  calendar month  2000-10-28 to 2000-10-31  America/New_York  avgt   10  130598950.850 ± 1249189.867  ns/op
after     10000000  calendar month  2000-10-28 to 2000-10-31               UTC  avgt   10   52311775.080 ±  107171.092  ns/op
after     10000000  calendar month  2000-10-28 to 2000-10-31  America/New_York  avgt   10   54800134.968 ±  373844.796  ns/op
```

That's a 46% speed up when there isn't a time zone and a 58% speed up
when there is.

This doesn't work for every time zone, specifically those that have two
midnights in a single day due to daylight savings time will produce wonky
results. So they don't get the optimization.

Second, this requires a few expensive computation up front to make the
transition array. And if the transition array is too large then we give
up and use the original mechanism, throwing away all of the work we did
to build the array. This seems appropriate for most usages of `round`,
but this change uses it for *all* usages of `round`. That seems ok for
now, but it might be worth investigating in a follow up.

I ran a macrobenchmark as well which showed an 11% preformance
improvement. *BUT* the benchmark wasn't tuned for my desktop so it
overwhelmed it and might have produced "funny" results. I think it is
pretty clear that this is an improvement, but know the measurement is
weird:

```
Benchmark  (count)      (interval)                   (range)            (zone)  Mode  Cnt          Score         Error  Units
before    10000000  calendar month  2000-10-28 to 2000-10-31               UTC  avgt   10   96461080.982 ±  616373.011  ns/op
before    10000000  calendar month  2000-10-28 to 2000-10-31  America/New_York  avgt   10  g± 1249189.867  ns/op
after     10000000  calendar month  2000-10-28 to 2000-10-31               UTC  avgt   10   52311775.080 ±  107171.092  ns/op
after     10000000  calendar month  2000-10-28 to 2000-10-31  America/New_York  avgt   10   54800134.968 ±  373844.796  ns/op

Before:
|               Min Throughput | hourly_agg |        0.11 |  ops/s |
|            Median Throughput | hourly_agg |        0.11 |  ops/s |
|               Max Throughput | hourly_agg |        0.11 |  ops/s |
|      50th percentile latency | hourly_agg |      650623 |     ms |
|      90th percentile latency | hourly_agg |      821478 |     ms |
|      99th percentile latency | hourly_agg |      859780 |     ms |
|     100th percentile latency | hourly_agg |      864030 |     ms |
| 50th percentile service time | hourly_agg |     9268.71 |     ms |
| 90th percentile service time | hourly_agg |        9380 |     ms |
| 99th percentile service time | hourly_agg |     9626.88 |     ms |
|100th percentile service time | hourly_agg |     9884.27 |     ms |
|                   error rate | hourly_agg |           0 |      % |

After:
|               Min Throughput | hourly_agg |        0.12 |  ops/s |
|            Median Throughput | hourly_agg |        0.12 |  ops/s |
|               Max Throughput | hourly_agg |        0.12 |  ops/s |
|      50th percentile latency | hourly_agg |      519254 |     ms |
|      90th percentile latency | hourly_agg |      653099 |     ms |
|      99th percentile latency | hourly_agg |      683276 |     ms |
|     100th percentile latency | hourly_agg |      686611 |     ms |
| 50th percentile service time | hourly_agg |     8371.41 |     ms |
| 90th percentile service time | hourly_agg |     8407.02 |     ms |
| 99th percentile service time | hourly_agg |     8536.64 |     ms |
|100th percentile service time | hourly_agg |     8538.54 |     ms |
|                   error rate | hourly_agg |           0 |      % |
```
2020-10-05 09:58:24 -04:00
Rene Groeschke f58ebe58ee
Use services for archive and file operations in tasks (#62968) (#63201)
Referencing a project instance during task execution is discouraged by
Gradle and should be avoided. E.g. It is incompatible with Gradles
incubating configuration cache. Instead there are services available to handle
archive and filesystem operations in task actions.

Brings us one step closer to #57918
2020-10-05 15:52:15 +02:00
Benjamin Trent 1e63313c19
[ML] adds feature_importance_baseline object to model metadata (#63172) (#63237)
this adds the new field `feature_importance_baseline` and allows it to be optionally be included in the model's metadata.

Related to: https://github.com/elastic/ml-cpp/pull/1522
2020-10-05 09:33:38 -04:00
Ayush Eshan dab1b14a10
[Docs] Fixed a couple of typos in CONTRIBUTING (#63205)
Fixed a couple of typos in contribution guide.

(cherry picked from commit 71fcaa41d83bfc5388d22c9b07d2800ee19a8fe8)
2020-10-05 16:25:57 +03:00
Marios Trivyzas 19650e860a
EQL: [Test] Add a test for `identifier` as eventType (#63227) (#63235)
Add a unit test to verify that an identifier surrounded with backquotes
is not a valid syntax for eventType value, as eventType is
schemantically a string literal and not a field identifier.

Follows: #63169
(cherry picked from commit ff12c1340b3890ac52251f31259fa9a719d9eacc)
2020-10-05 15:23:08 +02:00
Costin Leau 1047d67199 Revert "EQL: Avoid filtering on tiebreakers (#63215)"
This reverts commit efd2243886.
2020-10-05 15:55:59 +03:00
David Roberts ccaec70a84
[ML] Muting mappings upgrade test for .ml-stats (#63234)
Due to https://github.com/elastic/elasticsearch/issues/61908
2020-10-05 13:22:13 +01:00
Armin Braun d13c1f5058
Fix Overly Strict Assertion in BlobStoreRepository (#63061) (#63236)
As long as `bestEffortConsistency` is `true`, the value of `latestKnownRepoGen`
can be updated as a result of reads. We can only assert that `latestKnownRepoGen`
and cluster state move in lock-step if `bestEffortConsistency` was `false` before
updating the metadata generation as well as after.

Closes #62877
2020-10-05 14:06:57 +02:00
Costin Leau 8c4503bcc3 EQL: Change default indices options (#63192)
Ignore by default unavailable indices (same as ES) and verify that
allowNoIndices is set to false since at least one index is required
for validating the query.

Fix #62986

(cherry picked from commit fd75ac27223cd1b699b8d9c311dc401a39f9e0c8)
2020-10-05 14:21:56 +03:00
Costin Leau b67d2274ae QL: Optimize regexs without patterns as equality (#63216)
If a QL regex doesn't contain any pattern, convert it to Equals.

Close #63196

(cherry picked from commit e22a843124290aaacd0e80d7ae9b883e5ec2431e)
2020-10-05 14:21:42 +03:00
Costin Leau efd2243886 EQL: Avoid filtering on tiebreakers (#63215)
Do not filter by tiebreaker while searching sequence matches as
it's not monotonic and thus can filter out valid data.

Fix #62781

(cherry picked from commit 4d62198df70f3b70f8b6e7730e888057652c18a8)
2020-10-05 14:21:30 +03:00
Costin Leau 4f593bdd69 EQL: Make queries using Point-In-Time rely on index filtering (#63161)
Point-In-Time queries cannot be ran on individual indices but on all.
Thus all PIT queries move their index from the request level to a filter
so this condition is fulfilled while keeping the query scoped
accordingly.

Fix #63132

(cherry picked from commit c8eb4f724d5dcc0fcc172c6219ecfbc1dc1fbbae)
2020-10-05 14:21:09 +03:00
Yannick Welsch b4a1199e87 Uniquely associate term with update task during election (#62212)
There is a small race when processing the cluster state that is used to
establish a newly elected leader as master of the cluster: it can pick the term
in its master state update task from a different (newer) election. This trips
an assertion in `Coordinator.publish(...)` where we claim that the term on the
state allows to uniquely define the pre-state but this isn't so. There are no
bad consequences of this race since such a publication fails later on anyway.

This PR fixes things so that the assertion holds true by improving the handling
of terms during cluster state processing by associating each master state
update task that is used to establish a newly elected leader with the correct
corresponding term from its election. It also explicitly handles the case where
the pre-state that is used as base state has already superseded the current
state. As a nice side-effect, join batching now only happens based on the same
term.

Closes #61437
2020-10-05 11:46:10 +01:00
Armin Braun 106695bec8
Fix Race in ClusterApplierService Shutdown (#62944) (#63228)
The iteration over `timeoutClusterStateListeners` starts when the CS applier
thread is still running. This can lead to entries being added to it that never
get their listener resolved on shutdown and thus leak that listener as observed
in a stuck test in #62863.
Since `listener.onClose()` is idempotent we can just call it if we run into a stopped service
on the CS thread to avoid the race with certainty (because the iteration in `doStop` starts after
the stopped state has been set).

Closes #62863
2020-10-05 12:35:42 +02:00
Alan Woodward 01950bc80f
Move FieldMapper#valueFetcher to MappedFieldType (#62974) (#63220)
For runtime fields, we will want to do all search-time interaction with
a field definition via a MappedFieldType, rather than a FieldMapper, to
avoid interfering with the logic of document parsing. Currently, fetching
values for runtime scripts and for building top hits responses need to
call a method on FieldMapper. This commit moves this method to
MappedFieldType, incidentally simplifying the current call sites and freeing
us up to implement runtime fields as pure MappedFieldType objects.
2020-10-04 14:54:59 +01:00
Jason Tedor 1c136bb7fc
Add tier preference when mounting (#63204)
This commit adds a tier preference when mounting a searchable
snapshot. This sets a preference that a searchable snapshot is mounted
to a node with the cold role if one exists, then the warm role, then the
hot role, assuming that no other allocation rules are in place. This
means that by default, searchable snapshots are mounted to a node with
the cold role.

Note that depending on how we implement frozen functionality of
searchable snapshots (not pre-cached/not fully-cached), we might need to
adjust this to prefer frozen if mounting a not pre-cached/fully-cached
searchable snapshot versus mounting a pre-cached/fully-cached searchable
snapshot. This is a later concern since neither this nor the frozen role
are implemented currently.
2020-10-03 07:33:36 -04:00
Nhat Nguyen 4ef8673fdd Fix testRestartAfterCompletion (#63211)
We need to complete the search before closing the iterator, which 
internally closes the point in time; otherwise, the search will fail
with a missing context error.

Closes #62451
2020-10-02 18:14:42 -04:00
Lisa Cawley 69c56d55dc [DOCS] Clarify BWC of monitoring clusters (#63151) 2020-10-02 14:09:30 -07:00
Lisa Cawley 4de6104dae
[DOCS] Fix titles for ML APIs (#63152) (#63207) 2020-10-02 14:01:01 -07:00
James Rodewig ade91a2d9d
[DOCS] EQL: Update syntax for escaped event categories (#63202) (#63208) 2020-10-02 15:19:12 -04:00
James Rodewig a22b90d3cc
[DOCS] EQL: Replace ?"..." with """...""" for raw strings (#63191) (#63198) 2020-10-02 14:03:58 -04:00
Martijn van Groningen 0b6e2b8f16
Fix enrich policy test bug.
Backport #63182 to 7.x branch.

The `randomEnrichPolicy(...)` helper method stores the policy and creates the source indices.
If a source index already exists, because it was creates for a random policy created earlier then
skipping the source index fails, but that is ignored and the test continues. However if the policy
has a match field that doesn't exist in the previous random policy then the mapping is never updated
and the put policy api fails with the fact that the match field can't be found.

This pr fixes that by execute a put mapping call in the event that the source index already exists.

Closes #63126
2020-10-02 19:34:39 +02:00
Benjamin Trent 752ee0288e
[7.x] [ML] optimize delete expired snapshots (#63134) (#63200)
* [ML] optimize delete expired snapshots (#63134)

When deleting expired snapshots, we do an individual delete action per snapshot per job.

We should instead gather the expired snapshots and delete them in a single call.

This commit achieves this and a side-effect is there is less audit log spam on nightly cleanup

closes https://github.com/elastic/elasticsearch/issues/62875
2020-10-02 13:24:36 -04:00
István Zoltán Szabó 8278bdb7de [DOCS] Updates trained models API docs titles. (#63165) 2020-10-02 10:16:19 -07:00