Commit Graph

4247 Commits

Author SHA1 Message Date
Armin Braun 0a09e15959
Add Caching for RepositoryData in BlobStoreRepository (#52341) (#52566)
Cache latest `RepositoryData` on heap when it's absolutely safe to do so (i.e. when the repository is in strictly consistent mode).

`RepositoryData` can safely be assumed to not grow to a size that would cause trouble because we often have at least two copies of it loaded at the same time when doing repository operations. Also, concurrent snapshot API status requests currently load it independently of each other and so on, making it safe to cache on heap and assume as "small" IMO.

The benefits of this move are:
* Much faster repository status API calls
   * listing all snapshot names becomes instant
   * Other operations are sped up massively too because they mostly operate in two steps: load repository data then load multiple other blobs to get the additional data
* Additional cloud cost savings
* Better resiliency, saving another spot where an IO issue could break the snapshot
* We can simplify a number of spots in the current code that currently pass around the repository data in tricky ways to avoid loading it multiple times in follow ups.
2020-02-21 10:20:07 +01:00
Armin Braun 4bb780bc37
Refactor Inflexible Snapshot Repository BwC (#52365) (#52557)
* Refactor Inflexible Snapshot Repository BwC (#52365)

Transport the version to use for  a snapshot instead of whether to use shard generations in the snapshots in progress entry. This allows making upcoming repository metadata changes in a flexible manner in an analogous way to how we handle serialization BwC elsewhere.
Also, exposing the version at the repository API level will make it easier to do BwC relevant changes in derived repositories like source only or encrypted.
2020-02-21 09:14:34 +01:00
Ignacio Vera 107f00a4ec
Add support for multipoint geoshape queries (#52133) (#52553)
Currently multi-point queries are not supported when indexing your data using BKD-backed geoshape strategy. This commit removes this limitation.
2020-02-21 07:45:53 +01:00
Yannick Welsch d76358c875
Deprecate fixed_auto_queue_size thread pool type (#52399)
Relates #52280
2020-02-20 11:11:06 +01:00
Yannick Welsch 3afb5ca133 Fix synchronization in ByteSizeCachingDirectory (#52512)
One particular code place was synchronizing on the wrong object.
2020-02-19 16:10:39 +01:00
Przemysław Witek 7cd997df84
[ML] Make ml internal indices hidden (#52423) (#52509) 2020-02-19 14:02:32 +01:00
Ignacio Vera 8d2261fe47
Refactor GeoShapeIndexer by extracting polygon / line decomposers (#52422) (#52506)
Refactor GeoShapeIndexer. We extract Polygon and Line decomposers which are in charge of breaking a shape around the dateline if needed.
2020-02-19 12:04:29 +01:00
Henning Andersen 9d40277d4c Deciders should not by default collect yes'es (#52438)
AllocationDeciders would collect Yes decisions when not asking for debug
info. Changed to only include Yes decisions when debug is requested
(explain).
2020-02-19 11:18:03 +01:00
Henning Andersen d4bc3b75dc Reindex: allow comma separated source indices (#52044)
Added ability to specify comma separated list of source indices without
array. Also fixed so that empty string results in validation error
rather than index does not exist.

Closes #51949
2020-02-19 09:23:15 +01:00
David Turner baf184c93f Avoid using WindowsFS in ClusterRerouteIT (#52488)
Issue #52000 looks like a case of cluster state updates being slower than
expected, but it seems that these slowdowns are relatively rare: most
invocations of `testDelayWithALargeAmountOfShards` take well under a minute in
CI, but there are occasional failures that take 6+ minutes instead.  When it
fails like this, cluster state persistence seems generally slow: most are
slower than expected, with some small updates even taking over 2 seconds to
complete.

The failures all have in common that they use `WindowsFS` to emulate Windows'
behaviour of refusing to delete files that are still open, by tracking all
files (really, inodes) and validating that deleted files are really closed
first. There is a suggestion that this is a little slow in the Lucene test
framework [1]. To see if we can attribute the slowdown to that common factor,
this commit suppresses the use of `WindowsFS` for this test suite.

[1] 4a513fa99f/lucene/test-framework/src/java/org/apache/lucene/util/TestRuleTemporaryFilesCleanup.java (L166)
2020-02-19 07:52:49 +00:00
Tim Brooks 8038f9bba6
Do not lock when generating time based uuid (#52436)
Currently we lock when generating time based uuids. The lock is
implemented to prevent concurrent writes to the last timestamp. The uuid
generation is an area of contention when indexing. This commit modifies
the code to use atomic compare and set operations to update the last
timestamp.
2020-02-18 09:55:51 -07:00
Tim Brooks 7fcd997b39
Do not lock on settings keyset if keys initialized (#52435)
Every time a setting#exist call is made we lock on the keyset to ensure
that it has been initialized. This a heavyweight operation that only
should be done once. This commit moves to a volatile read instead to
prevent unnecessary locking.
2020-02-18 09:36:07 -07:00
Tim Brooks a742c58d45
Extract a ConnectionManager interface (#51722)
Currently we have three different implementations representing a
`ConnectionManager`. There is the basic `ConnectionManager` which
holds all connections for a cluster. And a remote connection manager
which support proxy behavior. And a stubbable connection manager for
tests. The remote and stubbable instances use the delegate pattern,
so this commit extracts an interface for them all to implement.
2020-02-18 09:19:24 -07:00
Benedict Jin 0c4f7dc193
Minor code improvements (#51921)
Fix some whitespaces, comments and usage of `this.`.

(cherry picked from commit 9f59900bf6389172811eb2279c17a2dc7cd9dfdf)
2020-02-18 16:00:05 +01:00
David Turner 3d57a78deb Add extra logging for investigation into #52000 (#52472)
It looks like #52000 is caused by a slowdown in cluster state application
(maybe due to #50907) but I would like to understand the details to ensure that
there's nothing else going on here too before simply increasing the timeout.
This commit enables some relevant `DEBUG` loggers and also captures stack
traces from all threads rather than just the three hottest ones.
2020-02-18 13:02:33 +00:00
Armin Braun 57d6dd7e31
Fix Non-Verbose Snapshot List Missing Empty Snapshots (#52433) (#52456)
We were not including snapshots without indices in the non-verbose
listing because we used the snapshot -> indices mapping to get the
snapshots.
2020-02-18 11:37:53 +01:00
Armin Braun cc628748e1
Optimize FilterStreamInput for Network Reads (#52395) (#52403)
When `FilterStreamInput` wraps a Netty `ByteBuf` based stream it
did not forward the bulk primitive reads to the delegate.
These are optimized on the delegate but if they're not forwarded
then the delegate will be called e.g. 4 times to read an `int`.
This happens for essentially all network reads prior to this
change because they all run from a `NamedWritableAwareStreamInput`.

This also required optimising `BufferedChecksumStreamInput` individually to use bulk reads from the buffer because it implicitly assumed that the filter stream input  wouldn't override any of the bulk operations.
2020-02-17 13:07:19 +01:00
Nik Everett 146def8caa
Implement top_metrics agg (#51155) (#52366)
The `top_metrics` agg is kind of like `top_hits` but it only works on
doc values so it *should* be faster.

At this point it is fairly limited in that it only supports a single,
numeric sort and a single, numeric metric. And it only fetches the "very
topest" document worth of metric. We plan to support returning a
configurable number of top metrics, requesting more than one metric and
more than one sort. And, eventually, non-numeric sorts and metrics. The
trick is doing those things fairly efficiently.

Co-Authored by: Zachary Tong <zach@elastic.co>
2020-02-14 11:19:11 -05:00
Nik Everett 53b6583fed
Decode max and min optimization more carefully (#52336) (#52358)
Fixes the the no-query optimization for `min` and `max` aggregations
for `date_nanos` fields by delegating decoding dates "through" their
`resolution` member.

Closes #52220
2020-02-14 07:07:56 -05:00
Julie Tibshirani 0d7165a40b Standardize naming of fetch subphases. (#52171)
This commit makes the names of fetch subphases more consistent:
* Now the names end in just 'Phase', whereas before some ended in
  'FetchSubPhase'. This matches the query subphases like AggregationPhase.
* Some names include 'fetch' like FetchScorePhase to avoid ambiguity about what
  they do.
2020-02-13 13:00:46 -08:00
Nik Everett 2dac36de4d
HLRC support for string_stats (#52163) (#52297)
This adds a builder and parsed results for the `string_stats`
aggregation directly to the high level rest client. Without this the
HLRC can't access the `string_stats` API without the elastic licensed
`analytics` module.

While I'm in there this adds a few of our usual unit tests and
modernizes the parsing.
2020-02-12 19:25:05 -05:00
Nik Everett 7efce22f19
Fix a DST error in date_histogram (backport #52016) (#52237)
When `date_histogram` attempts to optimize itself it for a particular
time zone it checks to see if the entire shard is within the same
"transition". Most time zone transition once every size months or
thereabouts so the optimization can usually kicks in.

*But* it crashes when you attempt feed it a time zone who's last DST
transition was before epoch. The reason for this is a little twisted:
before this patch it'd find the next and previous transitions in
milliseconds since epoch. Then it'd cast them to `Long`s and pass them
into the `DateFieldType` to check if the shard's contents were within
the range. The trouble is they are then converted to `String`s which are
*then* parsed back to `Instant`s which are then convertd to `long`s. And
the parser doesn't like most negative numbers. And everything before
epoch is negative.

This change removes the
`long` -> `Long` -> `String` -> `Instant` -> `long` chain in favor of
passing the `long` -> `Instant` -> `long` which avoids the fairly complex
parsing code and handles a bunch of interesting edge cases around
epoch. And other edge cases around `date_nanos`.

Closes #50265
2020-02-12 17:57:04 -05:00
Nhat Nguyen 12cb6dcefe Fix testFlushOnInactive (#52275)
We need to reduce the translog sync interval for indices with translog
async setting so that we can have the safe commit in the assertBusy
interval. This is needed since #51905, where we use the local checkpoint
of the safe commit to calculate the number of uncommitted operations of
a translog stats.

Closes #52251
Relates #51905
2020-02-12 17:19:02 -05:00
Jay Modi 5bcc6fce5c
Remove DeprecationLogger from route objects (#52285)
This commit removes the need for DeprecatedRoute and ReplacedRoute to
have an instance of a DeprecationLogger. Instead the RestController now
has a DeprecationLogger that will be used for all deprecated and
replaced route messages.

Relates #51950
Backport of #52278
2020-02-12 15:05:41 -07:00
Marios Trivyzas dac720d7a1
Add a cluster setting to disallow expensive queries (#51385) (#52279)
Add a new cluster setting `search.allow_expensive_queries` which by
default is `true`. If set to `false`, certain queries that have
usually slow performance cannot be executed and an error message
is returned.

- Queries that need to do linear scans to identify matches:
  - Script queries
- Queries that have a high up-front cost:
  - Fuzzy queries
  - Regexp queries
  - Prefix queries (without index_prefixes enabled
  - Wildcard queries
  - Range queries on text and keyword fields
- Joining queries
  - HasParent queries
  - HasChild queries
  - ParentId queries
  - Nested queries
- Queries on deprecated 6.x geo shapes (using PrefixTree implementation)
- Queries that may have a high per-document cost:
  - Script score queries
  - Percolate queries

Closes: #29050
(cherry picked from commit a8b39ed842c7770bd9275958c9f747502fd9a3ea)
2020-02-12 22:56:14 +01:00
Ryan Ernst c07f46409c Fix single newline in logging output stream buffer (#52253)
The buffer in LoggingOutputStream skips flushing when only a newline
appears. However, if a windows newline appeared, the buffer length was
not reset. This commit resets the length so the \r does not appear in
the next logging message.

closes #51838
2020-02-12 10:48:55 -08:00
Nhat Nguyen e098e837f7 Fix testShouldPeriodicallyFlushAfterMerge (#52243)
MockRandomMergePolicy randomly determines if a segment should use a 
compound format. This can cause a force merge performing two merges: (1)
merging to a single segment, (2) rewriting the new segment using the
compound format. If the second merge completes after we have flushed,
then it can flip the flag shouldPeriodicallyFlushAfterBigMerge to true.

Closes #52205
2020-02-12 11:25:39 -05:00
Gordon Brown d48ce12920
Convert ILM and SLM histories into hidden indices (#51456)
Modifies SLM's and ILM's history indices to be hidden indices for added
protection against accidental querying and deletion, and improves
IndexTemplateRegistry to handle upgrading index templates.

Also modifies the REST test cleanup to delete hidden indices.
2020-02-11 14:18:55 -07:00
Nik Everett 86d5211c05
Make sorting by an agg results a real abstraction (#52007) (#52212)
This removes a bunch of `instanceof`s in favor of two new methods on
`InernalAggregation`. The default implementations of these methods just
throw exceptions explaining that you can't sort on this aggregation.
They are overridden by all of the classes that used to have `instanceof`
checks against them.

I doubt this is really any faster in practice. The real benefit here is
that it is a little more obvious *that* you can sort by the results of
an aggregation and it should be *much* more obvious where to look at
*how* aggregations sort themselves.

There are still a bunch more `instanceof`s in left in `AggregationPath`
but those will wait for a followup change.
2020-02-11 12:58:40 -05:00
Hendrik Muhs 098380e483 Percentiles aggregation validation checks for range (#51871)
disallow to specify percentile out of range [0,100]. This also fixes a problem in transform by failing
validation if an invalid percentile configuration is used.
2020-02-11 17:25:39 +01:00
David Roberts 473468d763 [ML] Better error when persistent task assignment disabled (#52014)
Changes the misleading error message when attempting to open
a job while the "cluster.persistent_tasks.allocation.enable"
setting is set to "none" to a clearer message that names the
setting.

Closes #51956
2020-02-11 15:23:21 +00:00
Zachary Tong 87854573e4 Add version constant for 7.6.1 2020-02-11 09:44:43 -05:00
Igor Motov 667e1a5225
Add Boxplot Aggregation (#52174)
Adds a `boxplot` aggregation that calculates min, max, medium and the first
and the third quartiles of the given data set.

Closes #33112
2020-02-11 09:38:17 -05:00
David Turner 00b9098250 Ignore timeouts with single-node discovery (#52159)
Today we use `cluster.join.timeout` to prevent nodes from waiting indefinitely
if joining a faulty master that is too slow to respond, and
`cluster.publish.timeout` to allow a faulty master to detect that it is unable
to publish its cluster state updates in a timely fashion. If these timeouts
occur then the node restarts the discovery process in an attempt to find a
healthier master.

In the special case of `discovery.type: single-node` there is no point in
looking for another healthier master since the single node in the cluster is
all we've got. This commit suppresses these timeouts and instead lets the node
wait for joins and publications to succeed no matter how long this might take.
2020-02-11 14:15:01 +00:00
David Kyle 343ced42be Mute LoggingOutputStreamTests.testMaxBuffer (#52193)
Relates to https://github.com/elastic/elasticsearch/issues/51838
2020-02-11 11:46:17 +00:00
Gordon Brown 350288ddf8
Check dot-index rules after template application (#52087)
Previously, the dot-index rules (namely, that indices with dot-prefixed
names should be either hidden indices or system indices) was done
before* template application, and so only checked for the `index.hidden`
setting in the request, ignoring if that setting was set via a template.

This commit moves that check to a different method, which is applied
after templates have been resolved and applied to the index settings.
2020-02-10 17:01:59 -07:00
Ryan Ernst 88cf8ac0a8 Fix windows empty line in logging capture (#52162)
This commit fixes another edge case in handling windows newlines in our
capture of stdout/stderr to log4j. The case is that the \r appears at
the beginning of the buffer when flushing, which would unintentionally
be emitted as an empty string. This commit skips the flush if only a \r
was found.

closes #51838
2020-02-10 13:29:50 -08:00
Julie Tibshirani 28a8db730f In FieldTypeLookup, factor out flat object field logic. (#52091)
Currently, the logic for looking up `flattened` field types lives in the
top-level `FieldTypeLookup`. This PR moves it into a dedicated class
`DynamicKeyFieldTypeLookup`.
2020-02-10 10:44:02 -08:00
Armin Braun d8169e5fdc
Don't Upload Redundant Shard Files (#51729) (#52147)
Segment(s) info blobs are already stored with their full content
in the "hash" field in the shard snapshot metadata as long as they are
smaller than 1MB. We can make use of this fact and never upload them
physically to the repo.
This saves a non-trivial number of uploads and downloads when restoring
and might also lower the latency of searchable snapshots since they can save
phyiscally loading this information as well.
2020-02-10 16:50:09 +01:00
Ignacio Vera 80e3c97210 Upgrade to lucene-8.5.0-snapshot-d62f6307658 (#52039) (#52130) 2020-02-10 10:13:22 +01:00
Alan Woodward 9b7e688f5b Don't use a static QueryShardResult for a null instance (#52063)
Fixes #52042
2020-02-10 09:03:43 +00:00
Ioannis Kakavas 343fb36c7f Test modifications for FIPS 140 mode (#51832) (#52128)
- Enable SunJGSS provider for Kerberos tests
- Handle the fact that in the decrypt method in KeyStoreWrapper might
not throw immediately when the GCM cipher is from BouncyCastle FIPS
and we end up with a DataInputStream that has reached it's end.
- Disable tests, jarHell, testingConventions for ingest attachment
plugin. We don't support this plugin (and document this) in FIPS
mode.
- Don't attempt to install ingest-attachment in smoke-test-plugins
2020-02-10 10:57:03 +02:00
Jay Modi 3edadfefd0 RestHandlers declare handled routes (#52123)
This commit changes how RestHandlers are registered with the
RestController so that a RestHandler no longer needs to register itself
with the RestController. Instead the RestHandler interface has new
methods which when called provide information about the routes
(method and path combinations) that are handled by the handler
including any deprecated and/or replaced combinations.

This change also makes the publication of RestHandlers safe since they
no longer publish a reference to themselves within their constructors.

Closes #51622

Co-authored-by: Jason Tedor <jason@tedor.me>

Backport of #51950
2020-02-09 22:48:32 -07:00
Nhat Nguyen 80a9a08b05 Fix leaking searcher when shards are removed or relocated (#52099)
We might leak a searcher if the target shard is removed (i.e., its index
is deleted) or relocated while we are creating a SearchContext from a
SearchRewriteContext.

Relates #51708
Closes #52021

I labelled this non-issue for an unreleased bug introduced in #51708.
2020-02-09 22:13:35 -05:00
Armin Braun 90eb6a020d Remove Redundant Loading of RepositoryData during Restore (#51977) (#52108)
We can just put the `IndexId` instead of just the index name into the recovery soruce and
save one load of `RepositoryData` on each shard restore that way.
2020-02-09 21:44:18 +01:00
Nhat Nguyen 9f541d909d Always create search context for scroll queries (#52078)
We need to either exclude null responses from the scroll search response
or always create a search context for every target shards, although that
scroll query can be written to match_no_docs. Otherwise, we won't find
search_context for subsequent scroll requests.

This commit implements the latter option as it's less error-prone.

Relates #51708
2020-02-08 13:01:01 -05:00
Armin Braun b77ef1f61b
Cleanup some Dead Code in o.e.index.store (#52045) (#52084)
One obviously unused method and an incorrect Javadoc that
referenced an otherwise unused class.
2020-02-08 12:14:51 +01:00
Mark Vieira e5a9e44ca4
Mute IndicesRequestCacheIT.testQueryRewriteDatesWithNow()
Signed-off-by: Mark Vieira <portugee@gmail.com>
2020-02-07 13:14:32 -08:00
Julie Tibshirani 337d73a7c6 Rename MapperService#fullName to fieldType.
The new name more accurately describes what the method returns.
2020-02-07 10:35:53 -08:00
Tanguy Leroux 7c6264b28c Mute IndicesRequestCacheIT.testQueryRewrite()
Relates #32827
2020-02-07 19:44:32 +02:00
Armin Braun 91e938ead8
Add Trace Logging of REST Requests (#51684) (#52015)
Being able to trace log all REST requests to a node would make debugging
a number of issues a lot easier.
2020-02-07 09:03:20 +01:00
Jim Ferenczi 0f333c89b9
Always rewrite search shard request outside of the search thread pool (#51708) (#51979)
This change ensures that the rewrite of the shard request is executed in the network thread or in the refresh listener when waiting for an active shard. This allows queries that rewrite to match_no_docs to bypass the search thread pool entirely even if the can_match phase was skipped (pre_filter_shard_size > number of shards). Coordinating nodes don't have the ability to create empty responses so this change also ensures that at least one shard creates a full empty response while the other can return null ones. This is needed since creating true empty responses on shards require to create concrete aggregators which would be too costly to build on a network thread. We should move this functionality to aggregation builders in a follow up but that would be a much bigger change.
This change is also important for #49601 since we want to add the ability to use the result of other shards to rewrite the request of subsequent ones. For instance if the first M shards have their top N computed, the top worst document in the global queue can be pass to subsequent shards that can then rewrite to match_no_docs if they can guarantee that they don't have any document better than the provided one.
2020-02-06 10:53:11 +01:00
Jim Ferenczi fb710cc62b Remove the query builder serialization from QueryShardException message (#51885)
QueryBuilders that throw exceptions on shards when building the Lucene query
returns the full serialization of the query builder in the exception message.
For large queries that fails to execute due to the max boolean clause, this means
that we keep a reference of these big messages for every shard that participate
in the request. In order to limit the memory needed to hold these query shard
exceptions in the coordinating node, this change removes the query builder
serialization from the shard exception. The query is known by the user so
there should be no need to repeat it on every shard exception. We could also
omit the entire stack trace for known bad request exception but it would deserve
a separate issue/pr.

Closes #51843
Closes #48910
2020-02-06 08:26:15 +01:00
Nik Everett 80e29a47d8
Fix a sneaky bug in rare_terms (#51868) (#51959)
When the `rare_terms` aggregation contained another aggregation it'd
break them. Most of the time. This happened because the process that it
uses to remove buckets that turn out not to be rare was incorrectly
merging results from multiple leaves. This'd cause array index out of
bounds issues. We didn't catch it in the test because the issue doesn't
happen on the very first bucket. And the tests generated data in such a
way that the first bucket always contained the rare terms. Randomizing
the order of the generated data fixed the test so it caught the issue.

Closes #51020
2020-02-05 16:32:55 -05:00
Adrien Grand ad9d2f1922
Move analysis/mappings stats to cluster-stats. (#51875)
Closes #51138
2020-02-05 11:02:25 +01:00
Yannick Welsch b4480bb8a4 Mute LoggingOutputStreamTests (#51917)
Relates #51838
2020-02-05 10:46:45 +01:00
Julie Tibshirani 38ce428831
Create a class to hold field capabilities for one index. (#51844)
Currently, the same class `FieldCapabilities` is used both to represent the
capabilities for one index, and also the merged capabilities across indices. To
help clarify the logic, this PR proposes to create a separate class
`IndexFieldCapabilities` for the capabilities in one index. The refactor will
also help when adding `source_path` information in #49264, since the merged
source path field will have a different structure from the field for a single index.

Individual changes:
* Add a new class IndexFieldCapabilities.
* Remove extra constructor from FieldCapabilities.
* Combine the add and merge methods in FieldCapabilities.Builder.
2020-02-04 11:24:57 -08:00
Maria Ralli 8d3e73b3a0 Add host address to BindTransportException message (#51269)
When bind fails, show the host address in addition to the port. This
helps debugging cases with wrong "network.host" values.

Closes #48001
2020-02-04 17:13:19 +00:00
feifeiiiiiiiiii 337153b29f Throw better exception on wrong `dynamic_templates` syntax (#51783)
Currently, a mappings update request, where dynamic_mappings is an object
instead of an array, results in a http response with a 500 code. This PR checks
for this condition and throws a MapperParsingException like we do for other
malformed mapping cases.

Closes #51486
2020-02-04 17:01:55 +01:00
Henning Andersen 41552359a2 Increase master disruption test assert timeouts (#51810)
After #51803, the timeouts waiting for assertions around master change
were too short.
2020-02-03 15:51:33 +01:00
Henning Andersen 1800b2730f Fix completeWith exception handling (#51734)
ActionListener.completeWith would catch exceptions from
listener.onResponse and deliver them to lister.onFailure, essentially
double notifying the listener. Instead we now assert that listeners do
not throw when using ActionListener.completeWith.

Relates #50886
2020-02-03 14:22:55 +01:00
Przemyslaw Gomulka a6d24d6a46
Fix ingest timezone logic backport(#51215) (#51802)
when a timezone is not provided Ingest logic should consider a time to be in a timezone provided as a parameter.
When a timezone is provided Ingest should recalculate a time to the timezone provided as a parameter

closes #51108
backport(#51215)
2020-02-03 14:17:43 +01:00
Henning Andersen 918dfaff1f Increase disruption test publish timeout to 5s (#51803)
With the new mechanism for storing cluster state in lucene, we store
index metadata in multiple data paths too. This causes cluster state
publish to timeout too frequently with a 1s timeout, so increasing it to
5s. Also increasing follower check timeout to 5s since it also sometimes
has fsync in its timeout path and leader check for symmetry.

Closes #51329
2020-02-03 13:57:57 +01:00
Ryan Ernst 21224caeaf Remove comparison to true for booleans (#51723)
While we use `== false` as a more visible form of boolean negation
(instead of `!`), the true case is implied and the true value does not
need to explicitly checked. This commit converts cases that have slipped
into the code checking for `== true`.
2020-01-31 16:35:43 -08:00
Ryan Ernst 61622c4f0c Fix LoggingOutputStream to work on windows (#51779)
LoggingOutputStream reads a stream and breaks on newlines. This commit
fixes the behavior to account for windows newlines also containing `\r`.

closes #51532
2020-01-31 16:30:10 -08:00
Noor 70bb7c862d Fixed typo in comment (#51745)
Comment said the supporter highlighter type was fvj, there's no such highlighter. It is supposed to say fvh for fast vector highlighting.
2020-01-31 10:30:21 -08:00
Mayya Sharipova 42b885f050
Upgrade to lucene-8.5.0-snapshot-3333ce7da6d (#51749)
Backport for #51327
2020-01-31 11:20:15 -05:00
David Turner 39a3a950de Simplify rebalancer's weight function (#51632)
This commit inlines the `weightShardAdded` and `weightShardRemoved` methods
from the `BalancedShardsAllocator#WeightFunction` that respectively add and
subtract 1 (±ε) from the result of `weight`. It then follows up with a number
of simplifications that this inlining enables.

As a side-effect it also somewhat reduces the number of calls to canRebalance
and canAllocate during rebalancing when there are multiple shards of the same
index on a node that is heavier than average.
2020-01-31 14:40:23 +00:00
Christoph Büscher 86f3b47299
Make `date_range` query rounding consistent with `date` (#50237) (#51741)
Currently the rounding used in range queries can behave differently for `date`
and `date_range` as explained in #50009. The behaviour on `date` fields is
the one we document in https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-range-query.html#range-query-date-math-rounding.
This change adapts the rounding behaviour for RangeType.DATE so it uses the
same logic as the `date` for the `date_range` type.

Backport of #50237
2020-01-31 15:35:05 +01:00
Dominic Page d7e1215e42
Backport of #50737 to 7.x (#51662)
* Refactor GeoShape tests to GeoShape and GeoPoint (#50737)

Backport to 7.x
2020-01-31 11:55:10 +01:00
Adrien Grand 915a931e93
Bucket aggregation circuit breaker optimization. (#46751) (#51730)
Co-authored-by: Howard <danielhuang@tencent.com>
2020-01-31 11:30:51 +01:00
Henning Andersen 282ae8fd8c Increase log level for failing AbstractDisruptionIT tests (#51462)
Increase log level for two failing tests to include trace logging for
PersistedClusterStateService.

Relates #51329
2020-01-31 08:30:09 +01:00
Ioannis Kakavas 46ffc57abe Fix test compilation error 2020-01-31 09:23:02 +02:00
David Turner 72ae0ca73f Log exceptions in TcpTransport at DEBUG level (#51612)
When running Elasticsearch on a flaky network, we may see nodes leaving the
cluster with reason `disconnected`. It may be useful to the cluster
administrator to see the full exception that caused the disconnection, but this
is only available with `TRACE` level logging which commingles the details of
the problem with other messages that are not useful to end users.

This commit promotes logging of exceptions in `TcpTransport` from `TRACE` to
`DEBUG` to separate them from the truly `TRACE`-level messages.
2020-01-31 01:36:58 +00:00
Gordon Brown 10c8179351
Use exclusions list instead of fake system indices (#51586)
This commit switches the strategy for managing dot-prefixed indices that
should be hidden indices from using "fake" system indices to an explicit
exclusions list that must be updated when those indices are converted to
hidden indices.
2020-01-30 16:31:27 -07:00
Armin Braun 9c7a63214c
Fix InternalEngineTests.testSeqNoAndCheckpoints (#51630) (#51671)
* Fix InternalEngineTests.testSeqNoAndCheckpoints

If we force flush while possibly triggering a merge the local checkpoint may change
from the expectation from the loop that just increments on every operation.

Closes #51604
2020-01-30 15:42:48 +01:00
Nhat Nguyen f0fad5b622
Deprecate translog retention settings (#51588) (#51638)
This change deprecates the translog retention settings as they are
effectively ignored since 7.4.

Relates #50775
Relates #45473
2020-01-30 09:03:10 -05:00
Armin Braun 1064009e9d
Allow Parallel Snapshot Restore And Delete (#51608) (#51666)
There is no reason not to allow deletes in parallel to restores
if they're dealing with different snapshots.
A delete will not remove any files related to the snapshot that
is being restored if it is different from the deleted snapshot
because those files will still be referenced by the restoring
snapshot.
Loading RepositoryData concurrently to modifying it is concurrency
safe nowadays as well since the repo generation is tracked in the
cluster state.

Closes #41463
2020-01-30 14:27:05 +01:00
Henning Andersen 2e8a2c4baf
Fix ActionListener.map exception handling (#50886) (#51642)
ActionListener.map would call listener.onFailure for exceptions from
listener.onResponse, but this means we could double trigger some
listeners which is generally unexpected. Instead, we should assume that
a listener's onResponse (and onFailure) implementation is responsible
for its own exception handling.
2020-01-30 12:54:55 +01:00
Ryan Ernst cf5a2269a5 Fix stderr to also be captured by log4j (#51569)
In #50259 we redirected stdout and stderr to log4j, to capture jdk
and external library messages. However, a typo in the method name used
to redirect the stream in java means stdout is currently being
duplicated twice, and stderr not captured. This commit corrects that
mistake. Unfortunately this is at a level that cannot really be tested,
thus we are still missing tests for this behavior.
2020-01-29 16:37:56 -08:00
Julie Tibshirani 40f4f2d267 Avoid processing search profile results twice. (#51575)
Just a small clean-up, not motivated by performance.
2020-01-29 14:37:39 -08:00
Nhat Nguyen 316fba0c67 Ensure warm up engine in testTranslogReplayWithFailure
We need to warm up the engine (i.e., perform an external refresh) before
accessing the external refresh. Note that we refresh externally before
allowing reading from a shard.

Relates #48605
Closes #51548
2020-01-28 21:49:21 -05:00
Jason Tedor b080237837
Ignore virtual ethernet devices that disappear (#51581)
When checking if a device is up, today we can run into virtual ethernet
devices that disappear while we are in the middle of checking. This
leads to "no such device". This commit addresses such devices by
treating them as not being up, if they are virtual ethernet devices that
disappeared while we were checking.
2020-01-28 18:44:36 -05:00
Jim Ferenczi 77f4aafaa2 Expose the logic to cancel task when the rest channel is closed (#51423)
This commit moves the logic that cancels search requests when the rest channel is closed
to a generic client that can be used by other APIs. This will be useful for any rest action
that wants to cancel the execution of a task if the underlying rest channel is closed by the
client before completion.

Relates #49931
Relates #50990
Relates #50990
2020-01-28 22:55:42 +01:00
Armin Braun aae93a7578
Allow Repository Plugins to Filter Metadata on Create (#51472) (#51542)
* Allow Repository Plugins to Filter Metadata on Create

Add a hook that allows repository plugins to filter the repository metadata
before it gets written to the cluster state.
2020-01-28 18:33:26 +01:00
David Roberts b8adb59e4a [TEST] Mute ReloadSecureSettingsIT.testReloadAllNodesWithPasswordWithoutTLSFails
Due to https://github.com/elastic/elasticsearch/issues/51546
2020-01-28 17:14:36 +00:00
Gordon Brown 89c2834b24
Deprecate creation of dot-prefixed index names except for hidden and system indices (#49959)
This commit deprecates the creation of dot-prefixed index names (e.g.
.watches) unless they are either 1) a hidden index, or 2) registered by
a plugin that extends SystemIndexPlugin. This is the first step
towards more thorough protections for system indices.

This commit also modifies several plugins which use dot-prefixed indices
to register indices they own as system indices, and adds a plugin to
register .tasks as a system index.
2020-01-28 10:01:16 -07:00
William Brafford 9efa5be60e
Password-protected Keystore Feature Branch PR (#51123) (#51510)
* Reload secure settings with password (#43197)

If a password is not set, we assume an empty string to be
compatible with previous behavior.
Only allow the reload to be broadcast to other nodes if TLS is
enabled for the transport layer.

* Add passphrase support to elasticsearch-keystore (#38498)

This change adds support for keystore passphrases to all subcommands
of the elasticsearch-keystore cli tool and adds a subcommand for
changing the passphrase of an existing keystore.
The work to read the passphrase in Elasticsearch when
loading, which will be addressed in a different PR.

Subcommands of elasticsearch-keystore can handle (open and create)
passphrase protected keystores

When reading a keystore, a user is only prompted for a passphrase
only if the keystore is passphrase protected.

When creating a keystore, a user is allowed (default behavior) to create one with an
empty passphrase

Passphrase can be set to be empty when changing/setting it for an
existing keystore

Relates to: #32691
Supersedes: #37472

* Restore behavior for force parameter (#44847)

Turns out that the behavior of `-f` for the add and add-file sub
commands where it would also forcibly create the keystore if it
didn't exist, was by design - although undocumented.
This change restores that behavior auto-creating a keystore that
is not password protected if the force flag is used. The force
OptionSpec is moved to the BaseKeyStoreCommand as we will presumably
want to maintain the same behavior in any other command that takes
a force option.

*  Handle pwd protected keystores in all CLI tools  (#45289)

This change ensures that `elasticsearch-setup-passwords` and
`elasticsearch-saml-metadata` can handle a password protected
elasticsearch.keystore.
For setup passwords the user would be prompted to add the
elasticsearch keystore password upon running the tool. There is no
option to pass the password as a parameter as we assume the user is
present in order to enter the desired passwords for the built-in
users.
For saml-metadata, we prompt for the keystore password at all times
even though we'd only need to read something from the keystore when
there is a signing or encryption configuration.

* Modify docs for setup passwords and saml metadata cli (#45797)

Adds a sentence in the documentation of `elasticsearch-setup-passwords`
and `elasticsearch-saml-metadata` to describe that users would be
prompted for the keystore's password when running these CLI tools,
when the keystore is password protected.

Co-Authored-By: Lisa Cawley <lcawley@elastic.co>

* Elasticsearch keystore passphrase for startup scripts (#44775)

This commit allows a user to provide a keystore password on Elasticsearch
startup, but only prompts when the keystore exists and is encrypted.

The entrypoint in Java code is standard input. When the Bootstrap class is
checking for secure keystore settings, it checks whether or not the keystore
is encrypted. If so, we read one line from standard input and use this as the
password. For simplicity's sake, we allow a maximum passphrase length of 128
characters. (This is an arbitrary limit and could be increased or eliminated.
It is also enforced in the keystore tools, so that a user can't create a
password that's too long to enter at startup.)

In order to provide a password on standard input, we have to account for four
different ways of starting Elasticsearch: the bash startup script, the Windows
batch startup script, systemd startup, and docker startup. We use wrapper
scripts to reduce systemd and docker to the bash case: in both cases, a
wrapper script can read a passphrase from the filesystem and pass it to the
bash script.

In order to simplify testing the need for a passphrase, I have added a
has-passwd command to the keystore tool. This command can run silently, and
exit with status 0 when the keystore has a password. It exits with status 1 if
the keystore doesn't exist or exists and is unencrypted.

A good deal of the code-change in this commit has to do with refactoring
packaging tests to cleanly use the same tests for both the "archive" and the
"package" cases. This required not only moving tests around, but also adding
some convenience methods for an abstraction layer over distribution-specific
commands.

* Adjust docs for password protected keystore (#45054)

This commit adds relevant parts in the elasticsearch-keystore
sub-commands reference docs and in the reload secure settings API
doc.

* Fix failing Keystore Passphrase test for feature branch (#50154)

One problem with the passphrase-from-file tests, as written, is that
they would leave a SystemD environment variable set when they failed,
and this setting would cause elasticsearch startup to fail for other
tests as well. By using a try-finally, I hope that these tests will fail
more gracefully.

It appears that our Fedora and Ubuntu environments may be configured to
store journald information under /var rather than under /run, so that it
will persist between boots. Our destructive tests that read from the
journal need to account for this in order to avoid trying to limit the
output we check in tests.

* Run keystore management tests on docker distros (#50610)

* Add Docker handling to PackagingTestCase

Keystore tests need to be able to run in the Docker case. We can do this
by using a DockerShell instead of a plain Shell when Docker is running.

* Improve ES startup check for docker

Previously we were checking truncated output for the packaged JDK as
an indication that Elasticsearch had started. With new preliminary
password checks, we might get a false positive from ES keystore
commands, so we have to check specifically that the Elasticsearch
class from the Bootstrap package is what's running.

* Test password-protected keystore with Docker (#50803)

This commit adds two tests for the case where we mount a
password-protected keystore into a Docker container and provide a
password via a Docker environment variable.

We also fix a logging bug where we were logging the identifier for an
array of strings rather than the contents of that array.

* Add documentation for keystore startup prompting (#50821)

When a keystore is password-protected, Elasticsearch will prompt at
startup. This commit adds documentation for this prompt for the archive,
systemd, and Docker cases.

Co-authored-by: Lisa Cawley <lcawley@elastic.co>

* Warn when unable to upgrade keystore on debian (#51011)

For Red Hat RPM upgrades, we warn if we can't upgrade the keystore. This
commit brings the same logic to the code for Debian packages. See the
posttrans file for gets executed for RPMs.

* Restore handling of string input

Adds tests that were mistakenly removed. One of these tests proved
we were not handling the the stdin (-x) option correctly when no
input was added. This commit restores the original approach of
reading stdin one char at a time until there is no more (-1, \r, \n)
instead of using readline() that might return null

* Apply spotless reformatting

* Use '--since' flag to get recent journal messages

When we get Elasticsearch logs from journald, we want to fetch only log
messages from the last run. There are two reasons for this. First, if
there are many logs, we might get a string that's too large for our
utility methods. Second, when we're looking for a specific message or
error, we almost certainly want to look only at messages from the last
execution.

Previously, we've been trying to do this by clearing out the physical
files under the journald process. But there seems to be some contention
over these directories: if journald writes a log file in between when
our deletion command deletes the file and when it deletes the log
directory, the deletion will fail.

It seems to me that we might be able to use journald's "--since" flag to
retrieve only log messages from the last run, and that this might be
less likely to fail due to race conditions in file deletion.

Unfortunately, it looks as if the "--since" flag has a granularity of
one-second. I've added a two-second sleep to make sure that there's a
sufficient gap between the test that will read from journald and the
test before it.

* Use new journald wrapper pattern

* Update version added in secure settings request

Co-authored-by: Lisa Cawley <lcawley@elastic.co>
Co-authored-by: Ioannis Kakavas <ikakavas@protonmail.com>
2020-01-28 05:32:32 -05:00
Tal Levy fc2d875c9f Fix geogrid with bounds test edge cases (#51118)
This commit modifies the bounding box for geogrid unit tests
to only consider bounding boxes that have significant longitudinal
width and whose coordinates are normalized to quantized space

Closes #51103.
2020-01-27 12:16:18 -08:00
Nik Everett 4ff314a9d5
Begin moving date_histogram to offset rounding (take two) (#51271) (#51495)
We added a new rounding in #50609 that handles offsets to the start and
end of the rounding so that we could support `offset` in the `composite`
aggregation. This starts moving `date_histogram` to that new offset.

This is a redo of #50873 with more integration tests.

This reverts commit d114c9db3e1d1a766f9f48f846eed0466125ce83.
2020-01-27 13:40:54 -05:00
Nik Everett faf6bb27be
Support time_zone on composite's date_histogram (#51172) (#51491)
We've been parsing the `time_zone` parameter on `date_hitogram` for a
while but it hasn't *done* anything. This wires it up.

Closes #45199
Inspired by #45200
2020-01-27 12:44:48 -05:00
Armin Braun 2eeea21d84
Use Consistent ClusterState throughout Snapshot API Calls (#51464) (#51471)
We shouldn't be using potentially changing versions of the cluster state
when answering a snapshot status API call by calling `SnapshotService#currentSnapshots` multiple times (each time using `ClusterService#state` under the hood) but instead pass down the state from the transport action.
Having these API behave more in a more deterministic way will make it easier to use them once parallel repository operations
are introduced.
2020-01-27 13:28:17 +01:00
Ryan Ernst fbfc5a327c Fix checkstyle and test for logging output stream
Commit a156629b didn't quite fix the botched backport. This commit does.
2020-01-25 14:13:47 -08:00
Ryan Ernst a156629b4a Fix backport compilation
Java 8 doesn't have a PrintStream ctor which takes a Charset object,
only a charset name. This fixes that.
2020-01-25 11:13:33 -08:00
Ryan Ernst a564cac7ba Capture stdout and stderr to log4j log (#50259)
This commit overrides the stdout and stderr print streams to be
redirected to the main elasticsearch.log file. While the Elasticsearch
project ensures stdout and stderr are not written to, the jdk or 3rd
party libs may do this, which can be unexepected for users used to
looking the elasticsearch log.

closes #50156
2020-01-25 11:00:01 -08:00
Armin Braun ef94a5863a
Fix RareClusterStateIT Cancelling Publication too Early (#51429) (#51434)
Wait for the cluster to have settled down and have the same accepted version on all nodes before
executing and cancelling request so that a slow CS accept on one node doesn't make it fall behind
and then get sent the full CS because of the diff-version mismatch, breaking the mechanics of this test.

Closes #51308
2020-01-24 20:33:45 +01:00
Armin Braun af1ff52e70
Fix TransportMasterNodeAction not Retrying NodeClosedException (#51325) (#51437)
Added node closed exception to the retryable remote exceptions as it's possible to run into this exception instead of a connect exception when the master node is just shutting down but still responding to requests.
2020-01-24 20:33:13 +01:00
Armin Braun f0d8c785e3
Fix Inconsistent Shard Failure Count in Failed Snapshots (#51416) (#51426)
* Fix Inconsistent Shard Failure Count in Failed Snapshots

This fix was necessary to allow for the below test enhancement:
We were not adding shard failure entries to a failed snapshot for those
snapshot entries that were never attempted because the snapshot failed during
the init stage and wasn't partial. This caused the never attempted snapshots
to be counted towards the successful shard count which seems wrong and
broke repository consistency tests.

Also, this change adjusts snapshot resiliency tests to run another snapshot
at the end of each test run to guarantee a correct `index.latest` blob exists
after each run.

Closes #47550
2020-01-24 18:20:47 +01:00
Ryan Ernst 144e037941 Ignore order of indices in hidden indices test (#51383)
The order indices are returned in in the metadata is not guaranteed.
This commit accounts for any possible ordering in assertions about
hidden indices.

closes #51340
2020-01-23 15:49:32 -08:00
Nhat Nguyen 1ca5dd13de
Flush instead of synced-flush inactive shards (#51365)
If all nodes are on 7.6, we prefer to perform a normal flush 
instead of synced flush when a shard becomes inactive.

Backport of #49126
2020-01-23 17:20:57 -05:00