Commit Graph

6291 Commits

Author SHA1 Message Date
Mayya Sharipova c8565fe692
Deprecate types in get field mapping API (#37667)
- Add deprecation warning to RestGetFieldMappingAction
- Add two new java HRLC classes GetFieldMappingsRequest and
GetFieldMappingsResponse. These classes use new typeless forms
of a request and response, and differ in that from the server
versions.

Relates to #35190
2019-01-23 14:24:35 -05:00
Lee Hinman 427bc7f940
Use ILM for Watcher history deletion (#37443)
* Use ILM for Watcher history deletion

This commit adds an index lifecycle policy for the `.watch-history-*` indices.
This policy is automatically used for all new watch history indices.

This does not yet remove the automatic cleanup that the monitoring plugin does
for the .watch-history indices, and it does not touch the
`xpack.watcher.history.cleaner_service.enabled` setting.

Relates to #32041
2019-01-23 10:18:08 -07:00
Christoph Büscher b3f9becf5f
Modify removal_of_types.asciidoc (#37648)
After switching the default behaviour of "include_type_name" to "false" in 7.0,
some parts of the types removal documentation can be adapted as well.
2019-01-23 09:48:00 +01:00
Christoph Büscher 95a6951f78
Use new bulk API endpoint in the docs (#37698)
This change switches to using the typeless bulk API endpoint in the
documentation snippets where possible
2019-01-23 09:46:28 +01:00
Boaz Leskes 52ba407931
Expose sequence number and primary terms in search responses (#37639)
Users may require the sequence number and primary terms to perform optimistic concurrency control operations. Currently, you can get the sequence number via the `docvalues_fields` API but the primary term is not accessible because it is maintained by the `SeqNoFieldMapper` and the infrastructure can't find it. 

This commit adds a dedicated sub fetch phase to return both numbers that is connected to a new `seq_no_primary_term` parameter.
2019-01-23 09:01:58 +01:00
Mayya Sharipova 942fc13af5
Use plain text instead of latexmath
As latexmath is not rendered, using plain text instead

Closes #37718
2019-01-22 16:49:03 -05:00
Julie Tibshirani 992bfd2064
Remove additional references to 'type' from the _bulk documentation. (#37722) 2019-01-22 12:13:01 -08:00
Christoph Büscher 34f2d2ec91
Remove remaining occurances of "include_type_name=true" in docs (#37646) 2019-01-22 15:13:52 +01:00
Daniel Mitterdorfer 757932a975
Document that date math is locale independent
With this commit we add a note to the API conventions documentation that
all date math expressions are resolved independently of any locale. This
behavior might be puzzling to users that try to specify a different
calendar than a Gregorian calendar.

Closes #37330 
Relates #37663
2019-01-22 12:04:29 +01:00
Ryan Ernst 9a34b20233
Simplify integ test distribution types (#37618)
The integ tests currently use the raw zip project name as the
distribution type. This commit simplifies this specification to be
"default" or "oss". Whether zip or tar is used should be an internal
implementation detail of the integ test setup, which can (in the future)
be platform specific.
2019-01-21 12:37:17 -08:00
David Kyle 0ae7f8630c
Document ml datafeed Id limitations (#37653) 2019-01-21 14:12:20 +00:00
Albert Zaharovits 5308746270
Remove Watcher Account "unsecure" settings (#36736)
Removes all sensitive settings (passwords, auth tokens, urls, etc...) for
watcher notifications accounts. These settings were deprecated (and
herein removed) in favor of their secure sibling that is set inside the
elasticsearch keystore. For example:
`xpack.notification.email.account.<id>.smtp.password`
is no longer a valid setting, and it is replaced by
`xpack.notification.email.account.<id>.smtp.secure_password`
2019-01-20 12:51:24 +02:00
Benjamin Trent 12cdf1cba4
ML: Add support for single bucket aggs in Datafeeds (#37544)
Single bucket aggs are now supported in datafeed aggregation configurations.
2019-01-18 15:08:53 -06:00
Julie Tibshirani 8da7a27f3b
Deprecate types in the put mapping API. (#37280)
From #29453 and #37285, the `include_type_name` parameter was already present and defaulted to false. This PR makes the following updates:
- Add deprecation warnings to `RestPutMappingAction`, plus tests in `RestPutMappingActionTests`.
- Add a typeless 'put mappings' method to the Java HLRC, and deprecate the old typed version. To do this cleanly, I opted to create a new `PutMappingRequest` object that differs from the existing server one.
2019-01-18 12:28:31 -08:00
Martijn van Groningen a3030c51e2 [ILM] Add unfollow action (#36970)
This change adds the unfollow action for CCR follower indices.

This is needed for the shrink action in case an index is a follower index.
This will give the follower index the opportunity to fully catch up with
the leader index, pause index following and unfollow the leader index.
After this the shrink action can safely perform the ilm shrink.

The unfollow action needs to be added to the hot phase and acts as
barrier for going to the next phase (warm or delete phases), so that
follower indices are being unfollowed properly before indices are expected
to go in read-only mode. This allows the force merge action to execute
its steps safely.

The unfollow action has three steps:
* `wait-for-indexing-complete` step: waits for the index in question
  to get the `index.lifecycle.indexing_complete` setting be set to `true`
* `wait-for-follow-shard-tasks` step: waits for all the shard follow tasks
  for the index being handled to report that the leader shard global checkpoint
  is equal to the follower shard global checkpoint.
* `pause-follower-index` step: Pauses index following, necessary to unfollow
* `close-follower-index` step: Closes the index, necessary to unfollow
* `unfollow-follower-index` step: Actually unfollows the index using 
  the CCR Unfollow API
* `open-follower-index` step: Reopens the index now that it is a normal index
* `wait-for-yellow` step: Waits for primary shards to be allocated after
  reopening the index to ensure the index is ready for the next step

In the case of the last two steps, if the index in being handled is
a regular index then the steps acts as a no-op.

Relates to #34648

Co-authored-by: Martijn van Groningen <martijn.v.groningen@gmail.com>
Co-authored-by: Gordon Brown <gordon.brown@elastic.co>
2019-01-18 13:05:03 -07:00
Martijn van Groningen 6846666b6b
Add ccr follow info api (#37408)
* Add ccr follow info api

This api returns all follower indices and per follower index
the provided parameters at put follow / resume follow time and
whether index following is paused or active.

Closes #37127

* iter

* [DOCS] Edits the get follower info API

* [DOCS] Fixes link to remote cluster

* [DOCS] Clarifies descriptions for configured parameters
2019-01-18 16:37:21 +01:00
Christoph Büscher 3a96608b3f
Remove more include_type_name and types from docs (#37601) 2019-01-18 14:11:18 +01:00
Christoph Büscher 25aac4f77f
Remove `include_type_name` in asciidoc where possible (#37568)
The "include_type_name" parameter was temporarily introduced in #37285 to facilitate
moving the default parameter setting to "false" in many places in the documentation
code snippets. Most of the places can simply be reverted without causing errors.
In this change I looked for asciidoc files that contained the
"include_type_name=true" addition when creating new indices but didn't look
likey they made use of the "_doc" type for mappings. This is mostly the case
e.g. in the analysis docs where index creating often only contains settings. I
manually corrected the use of types in some places where the docs still used an
explicit type name and not the dummy "_doc" type.
2019-01-18 09:34:11 +01:00
Christoph Büscher 2f0e0b2426
Allow indices.get_mapping response parsing without types (#37492)
This change adds deprecation warning to the indices.get_mapping API in case the
"inlcude_type_name" parameter is set to "true" and changes the parsing code in
GetMappingsResponse to parse the type-less response instead of the one
containing types. As a consequence the HLRC client doesn't need to force
"include_type_name=true" any more and the GetMappingsResponseTests can be
adapted to the new format as well. Also removing some "include_type_name"
parameters in yaml test and docs where not necessary.
2019-01-18 09:33:36 +01:00
Mike Place 080c073618 Minor docs cleanup (#37595)
Not all terminals are accessed via SSH.
2019-01-18 09:28:48 +01:00
Lisa Cawley 6dcb3af4c8
[DOCS] Adds size limitation to the get datafeeds APIs (#37578) 2019-01-17 10:47:15 -08:00
Lisa Cawley a2d9c464b2
[DOCS] Adds limitation to the get jobs API (#37549) 2019-01-17 08:21:37 -08:00
Jake Landis 587034dfa7
Add set_priority action to ILM (#37397)
This commit adds a set_priority action to the hot, warm, and cold
phases for an ILM policy. This action sets the `index.priority`
on the managed index to allow different priorities between the
hot, warm, and cold recoveries.

This commit also includes the HLRC and documentation changes.

closes #36905
2019-01-17 09:55:36 -06:00
Marios Trivyzas 1686c32ba9
SQL: Rename SQL type DATE to DATETIME (#37395)
* SQL: Rename SQL data type DATE to DATETIME

SQL data type DATE has only the date part (e.g.: 2019-01-14)
without any time information. Previously the SQL type DATE was
referring to the ES DATE which contains also the time part along
with TZ information. To conform with SQL data types the data type
`DATE` is renamed to `DATETIME`, since it includes also the time,
as a new runtime SQL `DATE` data type will be introduced down the road,
which only contains the date part and meets the SQL standard.

Closes: #36440

* Address comments
2019-01-17 10:17:58 +02:00
Przemyslaw Gomulka b6e5ccaf8a
Remove the AbstracLifecycleComponent constructor with Settings (#37523)
Adding the migration guide and removing the deprecated in 6.x
constructor

relates #35560
relates #34488
2019-01-17 09:10:09 +01:00
Jason Tedor 18a3e48a4a
Change file descriptor limit to 65535 (#37537)
Some systems default to a nofile ulimit of 65535. To reduce the pain of
deploying Elasticsearch to such systems, this commit lowers the required
limit from 65536 to 65535.
2019-01-16 17:19:12 -05:00
Marios Trivyzas 8932750efb
SQL: [Docs] Add an ES-SQL column for data types (#37529)
In order to distinguish the ES-SQL type from the standard SQL type
add a new ES-SQL column that will make clear this distingstion,
e.g.: datetime vs TIMSTAMP

Fixes: #37519
2019-01-16 16:16:21 +02:00
Lisa Cawley 17b0aa3f31
[DOCS] Intro for adding nodes (#37202) 2019-01-15 11:11:01 -08:00
Lisa Cawley 03cacdf16e
[DOCS] Adds CCR screenshots (#37439) 2019-01-15 10:53:29 -08:00
Lisa Cawley 44e83f30e2
[DOCS] Edits rollup API description (#37444) 2019-01-15 08:46:36 -08:00
niloct e71542ffd3 Update delete-by-query.asciidoc (#37370)
Tried my best to clarify sentence on `_delete_by_query` docs.
2019-01-15 08:05:24 -07:00
Boaz Leskes f7eb517eb8 Update the Flush API documentation (#33551)
The semantics of the API changed considerably since the documentation was written.

The main change is to remove references to memory reduction (this is related to refresh).
Instead, flush refers to recovery times. I also removed the references to trimming the translog
as the translog may be required for other purposes (operation history for ops based recovery
and complement ongoing file based recoveries).

Closes #32869
2019-01-15 11:45:10 +01:00
Michael Basnight c0368a2086
[DOCS] Add watcher context examples (#36565) 2019-01-14 20:44:21 -06:00
Julie Tibshirani 36a3b84fc9
Update the default for include_type_name to false. (#37285)
* Default include_type_name to false for get and put mappings.

* Default include_type_name to false for get field mappings.

* Add a constant for the default include_type_name value.

* Default include_type_name to false for get and put index templates.

* Default include_type_name to false for create index.

* Update create index calls in REST documentation to use include_type_name=true.

* Some minor clean-ups around the get index API.

* In REST tests, use include_type_name=true by default for index creation.

* Make sure to use 'expression == false'.

* Clarify the different IndexTemplateMetaData toXContent methods.

* Fix FullClusterRestartIT#testSnapshotRestore.

* Fix the ml_anomalies_default_mappings test.

* Fix GetFieldMappingsResponseTests and GetIndexTemplateResponseTests.

We make sure to specify include_type_name=true during xContent parsing,
so we continue to test the legacy typed responses. XContent generation
for the typeless responses is currently only covered by REST tests,
but we will be adding unit test coverage for these as we implement
each typeless API in the Java HLRC.

This commit also refactors GetMappingsResponse to follow the same appraoch
as the other mappings-related responses, where we read include_type_name
out of the xContent params, instead of creating a second toXContent method.
This gives better consistency in the response parsing code.

* Fix more REST tests.

* Improve some wording in the create index documentation.

* Add a note about types removal in the create index docs.

* Fix SmokeTestMonitoringWithSecurityIT#testHTTPExporterWithSSL.

* Make sure to mention include_type_name in the REST docs for affected APIs.

* Make sure to use 'expression == false' in FullClusterRestartIT.

* Mention include_type_name in the REST templates docs.
2019-01-14 13:08:01 -08:00
Jay Modi f3edbe2911
Security: remove SSL settings fallback (#36846)
This commit removes the fallback for SSL settings. While this may be
seen as a non user friendly change, the intention behind this change
is to simplify the reasoning needed to understand what is actually
being used for a given SSL configuration. Each configuration now needs
to be explicitly specified as there is no global configuration or
fallback to some other configuration.

Closes #29797
2019-01-14 14:06:22 -07:00
Nhat Nguyen 15aa3764a4
Reduce recovery time with compress or secure transport (#36981)
Today file-chunks are sent sequentially one by one in peer-recovery. This is a
correct choice since the implementation is straightforward and recovery is
network bound in most of the time. However, if the connection is encrypted, we
might not be able to saturate the network pipe because encrypting/decrypting
are cpu bound rather than network-bound.

With this commit, a source node can send multiple (default to 2) file-chunks
without waiting for the acknowledgments from the target.

Below are the benchmark results for PMC and NYC_taxis.

- PMC (20.2 GB)

| Transport | Baseline | chunks=1 | chunks=2 | chunks=3 | chunks=4 |
| ----------| ---------| -------- | -------- | -------- | -------- |
| Plain     | 184s     | 137s     | 106s     | 105s     | 106s     |
| TLS       | 346s     | 294s     | 176s     | 153s     | 117s     |
| Compress  | 1556s    | 1407s    | 1193s    | 1183s    | 1211s    |

- NYC_Taxis (38.6GB)

| Transport | Baseline | chunks=1 | chunks=2 | chunks=3 | chunks=4 |
| ----------| ---------| ---------| ---------| ---------| -------- |
| Plain     | 321s     | 249s     | 191s     |  *       | *        |
| TLS       | 618s     | 539s     | 323s     | 290s     | 213s     |
| Compress  | 2622s    | 2421s    | 2018s    | 2029s    | n/a      |

Relates #33844
2019-01-14 15:14:46 -05:00
Georgi Ivanov 87f9148580 Update the scroll example in the docs (#37394)
Update the scroll example ascii and Java docs, so it is more clear when to 
consume the scroll documents. Before this change the user could loose 
the first results if one uses copy & paste.
2019-01-14 13:03:00 +01:00
Jiyu-Zhang-Zendesk 4b1368183d Update analysis.asciidoc (#37404)
STConvert plugin is made by Medcl to convert between Simplified Chinese and Traditional Chinese. It's widely used by the Search Community for Chinese
2019-01-14 11:22:03 +01:00
Peter Dyson 96cfa000a5
[DOCS] copy_to only works one level deep, not recursively (#37249) 2019-01-13 16:24:34 +10:00
Jason Tedor 03be4dbaca
Introduce retention lease persistence (#37375)
This commit introduces the persistence of retention leases by persisting
them in index commits and recovering them when recovering a shard from
store.
2019-01-12 14:43:19 -08:00
Boaz Leskes 093d4a371c followup to #37284 with additional feedback 2019-01-11 08:07:35 -08:00
Boaz Leskes cae71cddfe
Document Seq No powered optimistic concurrency control (#37284)
Add documentation to describe the new sequence number powered optimistic concurrency control

Relates #36148
Relates #10708
2019-01-11 07:59:15 -08:00
Jake Landis fad6329808
add link to freeze from cold phase (#37332) 2019-01-11 08:58:41 -06:00
Andrei Stefan ed2b5e80eb
Update discovery-ec2.asciidoc (#28925)
* Be more clear about the need to defining tags in EC2 to be able to filter
ES instances.
2019-01-11 11:24:31 +02:00
Alexander Reelsen bbd093059f
Add whitelist to watcher HttpClient (#36817)
This adds a configurable whitelist to the HTTP client in watcher. By
default every URL is allowed to retain BWC. A dynamically configurable
setting named "xpack.http.whitelist" was added that allows to
configure an array of URLs, which can also contain simple regexes.

Closes #29937
2019-01-11 09:22:47 +01:00
Jake Landis 9fd4d6ba4b
remove `+` references for xpack.monitoring.collection.indices (#37282)
`+` for index name inclusions is no longer supported for 6.x+. This
commit removes references of the `+` from the documenation. System
indices additional example is also included.

fixes #37237
2019-01-10 17:06:44 -06:00
markharwood 434430506b
Type removal - added deprecation warnings to _bulk apis (#36549)
Added warnings checks to existing tests
Added “defaultTypeIfNull” to DocWriteRequest interface so that Bulk requests can override a null choice of document type with any global custom choice.
Related to #35190
2019-01-10 21:35:19 +00:00
Lee Hinman 04dcb13ac4
Remove "beta" modifier from ILM documentation (#37326) 2019-01-10 13:38:14 -07:00
Lee Hinman a2d63ecdc0
Link ILM management and policy information in ILM API documentation (#37324)
Previously these were only linked in a circuitous way rather than being
available from the top level API documentation and "Put Lifecycle" API docs.
This makes them slightly easier to find for a user.
2019-01-10 12:34:44 -07:00
lcawl 2d5a8ec59d [DOCS] Remove unused screenshots 2019-01-10 11:10:25 -08:00
Andrei Stefan 4a92de214a
SQL: Proper handling of COUNT(field_name) and COUNT(DISTINCT field_name) (#37254)
* provide overriden `hashCode` and toString methods to account for `DISTINCT`
* change the analyzer for scenarios where `COUNT <field_name>` and `COUNT DISTINCT` have different paths
* defined a new `filter` aggregation encapsulating an `exists` query to filter out null or missing values
2019-01-10 09:51:51 +02:00
Morris Schreibman 13b8bad2b8 [DOCS] Clarify client settings (#31469) 2019-01-09 10:00:00 -08:00
Albert Zaharovits 4efbda1bc0
[DOCS] Rolling upgrade with old internal indices (#37184)
Upgrading the Elastic Stack perfectly documents the process to
upgrade ES from 5 to 6 when internal indices are present. However,
the rolling upgrade docs do not mention anything about internal indices.

This adds a warning in the rolling upgrade procedure, highlighting that
internal indices should be upgraded before the rolling upgrade procedure
can be started.
2019-01-09 18:14:22 +02:00
Christoph Büscher c149bb8cc2
Support 'include_type_name' in RestGetIndicesAction (#37149)
This change adds support for the 'include_type_name' parameter for the
indices.get API. This parameter, which defaults to `false` starting in 7.0,
changes the response to not include the indices type names any longer.

If the parameter is set in the request, we additionally emit a deprecation
warning since using the parameter should be only temporarily necessary while
adapting to the new response format and we will remove it with the next major
version.
2019-01-09 14:17:17 +01:00
David Turner d9e2ebca67
Add more detail to recovery bandwidth limit docs (#37156) 2019-01-09 08:18:25 +00:00
Jun Ohtani 38b698d455
[Analysis] Deprecate Standard Html Strip Analyzer in master (#26719)
* [Analysis] Deprecate Standard Html Strip Analyzer

Deprecate only Standard Html Strip Analyzer
If user create index with the analyzer since 7.0, es throws an exception.
If an index was created before 7.0, es issue deprecation log
We will remove it in 8.0

Related #4704
2019-01-09 12:42:00 +09:00
Mayya Sharipova ec32e66088 Deprecate reference to _type in lookup queries (#37016)
Relates to #35190
2019-01-08 18:46:41 -08:00
Andrew Banchich 1d371a427f [Docs] Fix wrong math in overview.asciidoc (#37209) 2019-01-08 10:25:02 +01:00
lcawl 382e4d39ef [DOCS] Cleans up xpackml attributes 2019-01-07 14:33:10 -08:00
Lisa Cawley f307847f29
[DOCS] Adds overview and API ref for cluster voting configurations (#36954) 2019-01-07 09:11:14 -08:00
Josh Soref edb48321ba [DOCS] Various spelling corrections (#37046) 2019-01-07 14:44:12 +01:00
Andrei Stefan 39a072389c
SQL: add sub-selects to the Limitations page (#37012) 2019-01-07 10:08:51 +02:00
Jim Ferenczi e38cf1d0dc
Add the ability to set the number of hits to track accurately (#36357)
In Lucene 8 searches can skip non-competitive hits if the total hit count is not requested.
It is also possible to track the number of hits up to a certain threshold. This is a trade off to speed up searches while still being able to know a lower bound of the total hit count. This change adds the ability to set this threshold directly in the track_total_hits search option. A boolean value (true, false) indicates whether the total hit count should be tracked in the response. When set as an integer this option allows to compute a lower bound of the total hits while preserving the ability to skip non-competitive hits when enough matches have been collected.

Relates #33028
2019-01-04 20:36:49 +01:00
Adam Thomson ac4aecc92d [Docs] Update ingest-node.asciidoc (#37116) 2019-01-04 19:33:06 +01:00
Simon Willnauer 41d7e3a2fe
Expose `search.throttled` on `_cat/indices` (#37073)
Today it's very difficult to see which indices are frozen or rather
throttled via the commonly used monitoring APIs. This change adds
a cell to the `_cat/indices` API to render if an index is `search.throttled`

Relates to #34352
2019-01-04 13:49:40 +01:00
Luca Cavanna bfe6f091da [DOCS] fix typo in 7.0.0-alpha2 release notes 2019-01-04 10:38:34 +01:00
Dimitris Athanasiou 586453fef1
[ML] Remove types from datafeed (#36538)
Closes #34265
2019-01-04 09:43:44 +02:00
lcawley 00997b4f60 [DOCS] Fixes broken links 2019-01-04 17:41:28 +10:00
Peter Dyson 7839cec301
subsequent fix to edit in recent cherry-pick 2019-01-04 17:34:24 +10:00
Peter Dyson 7cc9754d94
fix to edit in recent cherry-pick 2019-01-04 17:26:42 +10:00
Peter Dyson 0ff2707c9f Add Profile API to search speed tuning howto (#29489)
* Add Profile API to search speed tuning howto

Seemed useful to mention the Profile API in the context of tuning for search speed.
2019-01-04 16:49:12 +10:00
Tal Levy eaeccd8401
[ILM] Add Freeze Action (#36910)
This commit adds a new ILM Action for
freezing indices in the cold phase.

Closes #34630.
2019-01-03 15:00:40 -08:00
Igor Motov d6acd8e15f
Docs: add clarification about geohash use in geohashgrid agg (#36901)
Adds an example on translating geohashes returned by geohashgrid 
agg as bucket keys into geo bounding box filters in elasticsearch as well
as 3rd party applications.

Closes #36413
2019-01-03 15:40:48 -05:00
Lisa Cawley 366b6b5e11
[DOCS] Adds cluster setting to enable/disable config migration (#36948) 2019-01-03 09:26:57 -08:00
Marios Trivyzas 33137907cf
SQL: Enhance message for PERCENTILE[_RANK] with field as 2nd arg (#36933)
Enhance error message for the case that the 2nd argument of PERCENTILE
and PERCENTILE_RANK is not a foldable, as it doesn't make sense to have
a dynamic value coming from a field.

Fixes: #36903
2019-01-03 13:55:09 +02:00
Christoph Büscher 046f86f274
Deprecate use of type in reindex request body (#36823)
Types can be used both in the source and dest section of the body which will
be translated to search and index requests respectively. Adding a deprecation warning
for those cases and removing examples using more than one type in reindex since
support for this is going to be removed.
2019-01-03 10:29:14 +01:00
David Turner a40f0545e6
Make ILM examples larger (#37039)
There are a handful of examples in the ILM documentation that could result in
rolling over indices more quickly than we might normally recommend,
contributing to over-sharding in cases where the examples are copied without
modification. This change makes some numbers bigger to try and avoid this.
2019-01-03 08:28:49 +00:00
Daniel Mitterdorfer 75f3443c62
Rename setting to enable mmap
With this commit we rename `node.store.allow_mmapfs` to
`node.store.allow_mmap`. Previously this setting has controlled whether
`mmapfs` could be used as a store type. With the introduction of
`hybridfs` which also relies on memory-mapping,
`node.store.allow_mmapfs` also applies to `hybridfs` and thus we rename
it in order to convey that it is actually used to allow memory-mapping
but not a specific store type.

Relates #36668
Relates #37070
2019-01-03 07:10:34 +01:00
Luca Cavanna 42ea644903
Remove single shard optimization when suggesting shard_size (#37041)
When executing terms aggregations we set the shard_size, meaning the
number of buckets to collect on each shard, to a value that's higher than
the number of requested buckets, to guarantee some basic level of
precision. We have an optimization in place so that we leave shard_size
set to size whenever we are searching against a single shard, in which
case maximum precision is guaranteed by definition.

Such optimization requires us access to the total number of shards that
the search is executing against. In the context of cross-cluster search,
once we will introduce multiple reduction steps (one per cluster) each
cluster will only know the number of local shards, which is problematic
as we should only optimize if we are searching against a single shard in a
single cluster. It could be that we are searching against one shard per cluster
in which case the current code would optimize number of terms causing
a loss of precision.

While discussing how to address the CCS scenario, we decided that we do
not want to introduce further complexity caused by this single shard
optimization, as it benefits only a minority of cases, especially when
the benefits are not so great.

This commit removes the single shard optimization, meaning that we will
always have heuristic enabled on how many number of buckets to collect
on the shards, even when searching against a single shard.

This will cause more buckets to be collected when searching against a single
shard compared to before. If that becomes a problem for some users, they
can work around that by setting the shard_size equal to the size.

Relates to #32125
2019-01-02 17:45:49 +01:00
Abdullah DURSUN 8a02bacf76 Fix typo in multi-search.asciidoc (#37060) 2019-01-02 10:32:42 +01:00
Daniel Mitterdorfer f0052b1a7a
Add hybridfs store type
With this commit we introduce a new store type `hybridfs` that is a
hybrid between `mmapfs` and `niofs`. This store type chooses different
strategies to read Lucene files based on the read access pattern (random
or linear) in order to optimize performance.

This store type has been available in earlier versions of Elasticsearch
as `default_fs`. We have chosen a different name now in order to convey
the intent of the store type instead of tying it to the fact whether it
is the default choice.

Relates #36668
2019-01-02 10:10:32 +01:00
Peter Lyons 794303af73 [Docs] Fix URL path to aliases (#36852)
This API URL contains /aliases/aliases and that seems to be a duplicate.
2018-12-31 17:58:49 +01:00
Andrei Stefan 9c283aed0a
SQL: Move the SQL ODBC client applications pages from the ODBC section into the general ES SQL Client Applications page (#37004) 2018-12-31 14:07:39 +02:00
Andrei Stefan 0b1cb5300e
Move ODBC documentation to `elasticsearch` repository (#36955) 2018-12-27 11:55:20 +02:00
Damien Alexandre 47f0a47f3d [Docs] Fix badly escaped keywords in migrate_7_0/search.asciidoc (#36964) 2018-12-27 09:18:28 +01:00
David Turner bd41150338
Move 'lost cluster state updates' issue to DONE (#36959)
Relates #34714.
2018-12-24 09:29:08 +00:00
Jason Tedor 9137d92ca6
Refactor ingest node API docs (#36962)
This commit is a simple refactoring of the ingest node API docs,
breaking each API into a single file for ease of maintaining.
2018-12-23 08:59:18 -05:00
David Turner e2e82039d9
Add resiliency note on replica divergence (#36960) 2018-12-23 09:50:40 +00:00
Jason Tedor 7562768bd6
Fix ingest cross-doc links
This commit fixes some cross-doc links from the old ingest plugins page
to the new ingest processor pages that arose after converting
ingest-geoip and ingest-user-agent to modules.
2018-12-22 20:51:18 -05:00
Jason Tedor e14f27c033
Fix titles of GeoIP and User Agent processor docs
This commit makes the titles of the new GeoIP and User Agent processor
docs look more like the titles of the docs for other processors.
2018-12-22 20:31:07 -05:00
Jason Tedor 1f574bd17a
Package ingest-user-agent as a module (#36956)
This commit moves ingest-user-agent from being a plugin to being a
module that is packaged with Elasticsearch distributions.
2018-12-22 20:20:53 -05:00
Jason Tedor 2ecb0a2821
Fix link to using ingest-geoip 2018-12-22 14:01:23 -05:00
Jason Tedor 434021c3ec
Add placeholder ingest-geoip plugin page (#36958)
This commit adds a placeholder ingest-geoip plugin page as there are
other components in the Elastic Stack that still refer to these
pages. These docs would be broken without this placeholder page forcing
teams responsible for those docs to scramble to fix the build over the
weekend before a holiday period. Instead, we add a placeholder page so
the docs build continues to function, and those teams can fix their docs
without the constraint of a broken build. We also cleanup a few minor
docs issues that were missed during the initial changes to convert
ingest-geoip to a module.
2018-12-22 09:49:56 -05:00
Jason Tedor e1717df0ac
Package ingest-geoip as a module (#36898)
This commit moves ingest-geoip from being a plugin to being a module
that is packaged with Elasticsearch distributions.
2018-12-22 07:21:49 -05:00
Tal Levy 25625d2407
[ILM][DOCS] add extra scenario to policy update docs (#36871)
This extra scenario describes the case where an updated
policy increases the current phase's `min_age`. Now, the
docs explicitly describe this scenario as to what is
expected -- old min_age is used.

Closes #35356.
2018-12-21 13:55:21 -08:00
Andrei Stefan 09fa827adc
SQL: documentation improvements and updates (#36918)
* Added Limitations page
* Made the aggregations page follow the common template for functions
* Modified all tables to have the first row's cells content centered
* Polishing in other various sections
2018-12-21 23:25:54 +02:00
Lisa Cawley 33e9cf3892
[DOCS] Merges list of discovery and cluster formation settings (#36909) 2018-12-21 11:24:48 -08:00
Tim Brooks c8a8391dfa
Only compress responses if request was compressed (#36867)
This is a follow-up to some discussions around #36399. Currently we have
relatively confusing compression behavior where compression can be
configured for requests based on transport.compress or a specific
setting for a remote cluster. However, we can only compress responses
based on transport.compress as we do not know where a request is
coming from (currently).

This commit modifies the behavior to NEVER compress responses based on
settings. Instead, a response will only be compressed if the request was
compressed. This commit also updates the documentation to more clearly
described transport level compression.
2018-12-21 10:14:00 -07:00
David Turner 3f5dd792b3
Remove duplicate paragraph (#36942) 2018-12-21 16:09:35 +00:00
David Turner 7f3b9c8aa3
Fix URI to cluster stats endpoint on specific nodes (#36784) 2018-12-21 13:52:07 +00:00