Commit Graph

110 Commits

Author SHA1 Message Date
Rene Groeschke b79dd52c1b
Cleanup QA projects build scripts (#74428)
Aiming for configuring less during the build,
this removes non required configuration from qa build scripts that do not
contain any sources. We also remove a few non required afterEvaluate hooks
2021-06-23 11:35:47 +02:00
Ryan Ernst 63012c8a40
Move ParseField to o.e.c.xcontent (#73923)
ParseField is part of the x-content lib, yet it doesn't exist under the
same root package as the rest of the lib. This commit moves the class to
the appropriate package.

relates #73784
2021-06-08 13:32:14 -07:00
Ryan Ernst 68817d7ca2
Rename o.e.common in libs/core to o.e.core (#73909)
When libs/core was created, several classes were moved from server's
o.e.common package, but they were not moved to a new package. Split
packages need to go away long term, so that Elasticsearch can even think
about modularization. This commit moves all the classes under o.e.common
in core to o.e.core.

relates #73784
2021-06-08 09:53:28 -07:00
Tamara Braun 35584d9fdd
Make RBACEngine.resolveAuthorizedIndicesFromRole Return Set for Lookups (#72598)
This changes the result of AuthorizationEngine.loadAuthorizedIndices
(and dependent methods) from List<String> to Set<String>.

This has the following performance benefits:
1. `contains` checks are faster
2.  RBACEngine always formed this collections as a Set, so this
    change reduces unnecessary copying.

An additional performance improvement was added when resolve authorized
index names for data streams.
2021-05-26 16:25:53 +10:00
Rene Groeschke e609e07cfe
Remove internal build logic from public build tool plugins (#72470)
Extract usage of internal API from TestClustersPlugin and PluginBuildPlugin and related plugins and build logic

This includes a refactoring of ElasticsearchDistribution to handle types
better in a way we can differentiate between supported Elasticsearch
Distribution types supported in TestCkustersPlugin and types only supported
in internal plugins.

It also introduces a set of internal versions of public plugins.

As part of this we also generate the plugin descriptors now.

As a follow up on this we can actually move these public used classes into 
an extra project (declared as included build)

We keep LoggedExec and VersionProperties effectively public And workaround for RestTestBase
2021-05-06 14:02:35 +02:00
Rene Groeschke 5bcd02cb4d
Restructure build tools java packages (#72030)
Related to #71593 we move all build logic that is for elasticsearch build only into
the org.elasticsearch.gradle.internal* packages

This makes it clearer if build logic is considered to be used by external projects
Ultimately we want to only expose TestCluster and PluginBuildPlugin logic
to third party plugin authors.

This is a very first step towards that direction.
2021-04-26 14:53:55 +02:00
Lyudmila Fokina 3b0b7941ae
Warn users if security is implicitly disabled (#70114)
* Warn users if security is implicitly disabled

Elasticsearch has security features implicitly disabled by default for
Basic and Trial licenses, unless explicitly set in the configuration
file.
This may be good for onboarding, but it also lead to unintended insecure
 clusters.
 This change introduces clear warnings when security features are
 implicitly disabled.
 - a warning header in each REST response if security is implicitly
 disabled;
 - a log message during cluster boot.
2021-04-13 18:33:41 +02:00
Mark Vieira dabf857548
Remove integration testing using OSS distribution (#69153) 2021-02-17 13:57:04 -08:00
Mark Vieira a92a647b9f Update sources with new SSPL+Elastic-2.0 license headers
As per the new licensing change for Elasticsearch and Kibana this commit
moves existing Apache 2.0 licensed source code to the new dual license
SSPL+Elastic license 2.0. In addition, existing x-pack code now uses
the new version 2.0 of the Elastic license. Full changes include:

 - Updating LICENSE and NOTICE files throughout the code base, as well
   as those packaged in our published artifacts
 - Update IDE integration to now use the new license header on newly
   created source files
 - Remove references to the "OSS" distribution from our documentation
 - Update build time verification checks to no longer allow Apache 2.0
   license header in Elasticsearch source code
 - Replace all existing Apache 2.0 license headers for non-xpack code
   with updated header (vendored code with Apache 2.0 headers obviously
   remains the same).
 - Replace all Elastic license 1.0 headers with new 2.0 header in xpack.
2021-02-02 16:10:53 -08:00
Julie Tibshirani 5852fbedf5
Rename QueryShardContext -> SearchExecutionContext. (#67490)
We decided to rename `QueryShardContext` to clarify that it supports all parts
of search request execution. Before there was confusion over whether it should
only be used for building queries, or maybe only used in the query phase. This
PR also updates the javadocs.

Closes #64740.
2021-01-14 09:11:59 -08:00
Ioannis Kakavas bd873698bc
Ensure CI is run in FIPS 140 approved only mode (#64024)
We were depending on the BouncyCastle FIPS own mechanics to set
itself in approved only mode since we run with the Security
Manager enabled. The check during startup seems to happen before we
set our restrictive SecurityManager though in
org.elasticsearch.bootstrap.Elasticsearch , and this means that
BCFIPS would not be in approved only mode, unless explicitly
configured so.

This commit sets the appropriate JVM property to explicitly set
BCFIPS in approved only mode in CI and adds tests to ensure that we
will be running with BCFIPS in approved only mode when we expect to.
It also sets xpack.security.fips_mode.enabled to true for all test clusters
used in fips mode and sets the distribution to the default one. It adds a
password to the elasticsearch keystore for all test clusters that run in fips
mode.
Moreover, it changes a few unit tests where we would use bcrypt even in
FIPS 140 mode. These would still pass since we are bundling our own
bcrypt implementation, but are now changed to use FIPS 140 approved
algorithms instead for better coverage.

It also addresses a number of tests that would fail in approved only mode
Mainly:

    Tests that use PBKDF2 with a password less than 112 bits (14char). We
    elected to change the passwords used everywhere to be at least 14
    characters long instead of mandating
    the use of pbkdf2_stretch because both pbkdf2 and
    pbkdf2_stretch are supported and allowed in fips mode and it makes sense
    to test with both. We could possibly figure out the password algorithm used
    for each test and adjust password length accordingly only for pbkdf2 but
    there is little value in that. It's good practice to use strong passwords so if
    our docs and tests use longer passwords, then it's for the best. The approach
    is brittle as there is no guarantee that the next test that will be added won't
    use a short password, so we add some testing documentation too.
    This leaves us with a possible coverage gap since we do support passwords
    as short as 6 characters but we only test with > 14 chars but the
    validation itself was not tested even before. Tests can be added in a followup,
    outside of fips related context.

    Tests that use a PKCS12 keystore and were not already muted.

    Tests that depend on running test clusters with a basic license or
    using the OSS distribution as FIPS 140 support is not available in
    neither of these.

Finally, it adds some information around FIPS 140 testing in our testing
documentation reference so that developers can hopefully keep in
mind fips 140 related intricacies when writing/changing docs.
2020-12-23 21:00:49 +02:00
Martijn Laarman e31e3dea32
Add `visibility` the to rest-spec-api (#56104) 2020-12-14 12:23:28 +01:00
Rene Groeschke defaa93902
Avoid tasks materialized during configuration phase (#65922)
* Avoid tasks materialized during configuration phase
* Fix RestTestFromSnippet testRoot setup
2020-12-12 16:14:17 +01:00
Martijn Laarman 8d3def3e1f
Add Accept & Content-Type headers to rest api spec (#53979)
Co-authored-by: Russ Cam <russ.cam@elastic.co>
2020-12-09 14:43:05 +01:00
Rene Groeschke 0911d04467
Make AntFixture handling task provider api compliant (#65832)
This tweaks the AntFixture handling to make it compliant with the task avoidance api.
Tasks of type StandaloneRestTestTask are now generally finalised by using the typed ant stop task
which allows us to remove of errorprone dependsOn overrides in StandaloneRestTestTask. As a result
we also ported more task definitions in the build to task avoidance api.

Next work item regarding AntFixture handling is porting AntFixture to a plain Gradle task and remove
Groovy AntBuilder will allow us to port more build logic from Groovy to Java but is out of the scope of
This PR.
2020-12-08 13:07:36 +01:00
Rene Groeschke 810e7ff6b0
Move tasks in build scripts to task avoidance api (#64046)
- Some trivial cleanup on build scripts
- Change task referencing in build scripts to use task avoidance api
where replacement is trivial.
2020-11-12 12:04:15 +01:00
Luca Cavanna 95582da9a5
Rename QueryShardContext#fieldMapper to getFieldType (#63399)
Given that we have a class called `FieldMapper` and that the `fieldMapper` method exposed by `QueryShardContext` actually allows to get a `MappedFieldType` given its name, this commit renames such method to `getFieldType`
2020-10-07 16:11:53 +02:00
Christoph Büscher 00592b330e
Remove unused deprecated serialization code (#63166) 2020-10-02 12:48:49 +02:00
Rene Groeschke dd74be0f83
Merge test runner task into RestIntegTest (#60261)
* Merge test runner task into RestIntegTest
* Reorganizing Standalone runner and RestIntegTest task
* Rework general test task configuration and extension
2020-08-03 12:07:41 +02:00
Jake Landis 10be5d4c79
Convert most OSS plugins from integTest to [yaml | java]RestTest or internalClusterTest (#59444)
For all OSS plugins (except repository-* and discovery-*) integTest
task is now a no-op and all of the tests are now executed via a test,
yamlRestTest, javaRestTest, or internalClusterTest.

This commit does NOT convert the discovery-* and repository-* since they
are bit more complex then the rest of tests and this PR is large enough.
Those plugins will be addressed in a future PR(s).

This commit also fixes a minor issue that did not copy the rest api
for projects that only had YAML TEST tests.

related: #56841
2020-07-28 16:43:17 -05:00
Jake Landis 333a5d8cdf
Create plugin for yamlTest task (#56841)
This commit creates a new Gradle plugin to provide a separate task name
and source set for running YAML based REST tests. The only project
converted to use the new plugin in this PR is distribution/archives/integ-test-zip.
For which the testing has been moved to :rest-api-spec since it makes the most
sense and it avoids a small but awkward change to the distribution plugin.

The remaining cases in modules, plugins, and x-pack will be handled in followups.

This plugin is distinctly different from the plugin introduced in #55896 since
the YAML REST tests are intended to be black box tests over HTTP. As such they
should not (by default) have access to the classpath for that which they are testing.

The YAML based REST tests will be moved to separate source sets (yamlRestTest).
The which source is the target for the test resources is dependent on if this
new plugin is applied. If it is not applied, it will default to the test source
set.

Further, this introduces a breaking change for plugin developers that
use the YAML testing framework. They will now need to either use the new source set
and matching task, or configure the rest resources to use the old "test" source set that
matches the old integTest task. (The former should be preferred).

As part of this change (which is also breaking for plugin developers) the
rest resources plugin has been removed from the build plugin and now requires
either explicit application or application via the new YAML REST test plugin.

Plugin developers should be able to fix the breaking changes to the YAML tests
by adding apply plugin: 'elasticsearch.yaml-rest-test' and moving the YAML tests
under a yamlRestTest folder (instead of test)
2020-07-06 12:13:01 -05:00
Rene Groeschke 680ea07f7f
Remove deprecated usage of testCompile configuration (#57921)
* Remove usage of deprecated testCompile configuration
* Replace testCompile usage by testImplementation
* Make testImplementation non transitive by default (as we did for testCompile)
* Update CONTRIBUTING about using testImplementation for test dependencies
* Fail on testCompile configuration usage
2020-06-12 13:34:53 +02:00
Rene Groeschke 731b282c9f
Improvement usage of gradle task avoidance api (#56627)
Use gradle task avoidance api wherever it is possible as a drop in replacement in the es build
2020-05-19 20:01:49 +02:00
Nik Everett b84a6ed5e6
Merge significant_terms into the terms package (#56699)
This merges the code for the `significant_terms` agg into the package
for the code for the `terms` agg. They are *super* entangled already,
this mostly just admits that to ourselves.

Precondition for the terms work in #56487
2020-05-13 15:59:35 -04:00
William Brafford 92c8a73348
Deprecate disabling basic-license features (#54816)
We believe there's no longer a need to be able to disable basic-license
features completely using the "xpack.*.enabled" settings. If users don't
want to use those features, they simply don't need to use them. Having
such features always available lets us build more complex features that
assume basic-license features are present.

This commit deprecates settings of the form "xpack.*.enabled" for
basic-license features, excluding "security", which is a special case.
It also removes deprecated settings from integration tests and unit
tests where they're not directly relevant; e.g. monitoring and ILM are
no longer disabled in many integration tests.
2020-04-17 09:18:55 -04:00
Jason Tedor cda31879b5
Update link to JDK 14 compiler bug
This commit updates the link to the JDK 14 compiler bug that we have
found. At the time that we committed the workaround, we had a submission
ID, but not yet the public bug URL. This commit adds the public bug URL.
2020-04-07 06:25:00 -04:00
Jason Tedor 376c70ddc1
Workaround JDK 14 compiler bug (#54689)
This commit workarounds a bug in the JDK 14 compiler. It is choking on a
method reference, so we substitute a lambda expression instead. The JDK
bug ID is 9064309.
2020-04-02 19:44:31 -04:00
Jason Tedor 95a7eed9aa
Rename MetaData to Metadata in all of the places (#54519)
This is a simple naming change PR, to fix the fact that "metadata" is a
single English word, and for too long we have not followed general
naming conventions for it. We are also not consistent about it, for
example, METADATA instead of META_DATA if we were trying to be
consistent with MetaData (although METADATA is correct when considered
in the context of "metadata"). This was a simple find and replace across
the code base, only taking a few minutes to fix this naming issue
forever.
2020-03-31 15:52:01 -04:00
Martijn van Groningen b7af852422
Refactor AliasOrIndex abstraction. (#53982)
In order to prepare the `AliasOrIndex` abstraction for the introduction of data streams,
the abstraction needs to be made more flexible, because currently it really can be only
an alias or an index.

* Renamed `AliasOrIndex` to `IndexAbstraction`.
* Introduced a `IndexAbstraction.Type` enum to indicate what a `IndexAbstraction` instance is.
* Replaced the `isAlias()` method that returns a boolean with the `getType()` method that returns the new Type enum.
* Moved `getWriteIndex()` up from the `IndexAbstraction.Alias` to the `IndexAbstraction` interface.
* Moved `getAliasName()` up from the `IndexAbstraction.Alias` to the `IndexAbstraction` interface and renamed it to `getName()`.
* Removed unnecessary casting to `IndexAbstraction.Alias` by just checking the `getType()` method.

Relates to #53100
2020-03-30 08:10:07 +02:00
Alan Woodward 3e607d9e93
Rename AtomicFieldData to LeafFieldData (#53554)
This conforms with lucene's LeafReader naming convention, and
matches other per-segment structures in elasticsearch.
2020-03-17 12:25:51 +00:00
Jay Modi a11ccb83d4
Use List convenience methods in rest actions (#52286)
This commit replaces usages of older collection utility methods with
the JDK 9 convenience method `List.of()`.

Relates #51950
2020-02-12 15:11:22 -07:00
Jay Modi 627d853f18 RestHandlers declare handled routes (#51950)
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>
2020-02-09 21:35:39 -07:00
Ioannis Kakavas 5de8009093
Revert e34d7fd (#51530)
In e34d7fd we decided to use the default distribution for all tests
when running in a FIPS 140 JVM. This is strictly not necessary in
master, as the problem we originally attempted to fix is that we
set `xpack.security.ssl.diagnose.trust` when running in FIPS 140
JVMs and OSS didn't know of that setting. In master, we do not
need to set `xpack.security.ssl.diagnose.trust` so we don't need
to _always_ run with default distribution.
2020-01-29 08:15:56 +02:00
Mark Vieira e34d7fdaf7
Always test against default distribution when in a FIPS JVM (#51273) 2020-01-22 10:55:25 -08:00
Nik Everett 2762375dc4
Move test of custom sig heuristic to plugin (#50891)
This moves the testing of custom significance heuristic plugins from an
`ESIntegTestCase` to an example plugin. This is *much* more "real" and
can be used as an example for anyone that needs to actually build such a
plugin. The old test had testing concerns and the example all jumbled
together.
2020-01-15 15:06:29 -05:00
Mykhailo Havelia 12a8006a38 Change ExampleRescoreBuilder ctor visibility (#50922)
The existing package private visibility of the serialization ctor isn't enough when copying
example code to oder packages or projects when bootstrapping a new project from it.
2020-01-14 21:46:07 +01:00
Stuart Tettemer cd721b6386
Scripting: ScriptFactory not required by compile (#50344)
Avoid backwards incompatible changes for 8.x and 7.6 by removing type
restriction on compile and Factory.  Factories may optionally implement
ScriptFactory.  If so, then they can indicate determinism and thus
cacheability.

Relates: #49466
2019-12-19 10:14:28 -07:00
Stuart Tettemer 356d1a274e
Scripting: Groundwork for caching script results (#49895)
In order to cache script results in the query shard cache, we need to
check if scripts are deterministic.  This change adds a default method
to the script factories, `isResultDeterministic() -> false` which is
used by the `QueryShardContext`.

Script results were never cached and that does not change here.  Future
changes will implement this method based on whether the results of the
scripts are deterministic or not and therefore cacheable.

Refs: #49466
2019-12-06 13:09:44 -07:00
Stuart Tettemer 4a078029ed
Scripting: add available languages & contexts API (#49652)
Adds `GET /_script_language` to support Kibana dynamic scripting
language selection.

Response contains whether `inline` and/or `stored` scripts are
enabled as determined by the `script.allowed_types` settings.

For each scripting language registered, such as `painless`,
`expression`, `mustache` or custom, available contexts for the language
are included as determined by the `script.allowed_contexts` setting.

Response format:
```
{
  "types_allowed": [
    "inline",
    "stored"
  ],
  "language_contexts": [
    {
      "language": "expression",
      "contexts": [
        "aggregation_selector",
        "aggs"
        ...
      ]
    },
    {
      "language": "painless",
      "contexts": [
        "aggregation_selector",
        "aggs",
        "aggs_combine",
        ...
      ]
    }
...
  ]
}
```

Fixes: #49463
2019-12-03 18:55:48 -07:00
Rory Hunter 3a3e5f6176
Apply 2-space indent to all gradle scripts (#48849)
Closes #48724. Update `.editorconfig` to make the Java settings the default
for all files, and then apply a 2-space indent to all `*.gradle` files.
Then reformat all the files.
2019-11-13 10:14:04 +00:00
Mark Vieira af6af346f7
Introduce type-safe and consistent pattern for handling build globals (#48778)
This commit introduces a consistent, and type-safe manner for handling
global build parameters through out our build logic. Primarily this
replaces the existing usages of extra properties with static accessors.
It also introduces and explicit API for initialization and mutation of
any such parameters, as well as better error handling for uninitialized
or eager access of parameter values.

Closes #42042
2019-11-01 09:54:22 -07:00
Ryan Ernst d8b4556e2d
Add explanations to script score queries (#46693)
While function scores using scripts do allow explanations, they are only
creatable with an expert plugin. This commit improves the situation for
the newer script score query by adding the ability to set the
explanation from the script itself.

To set the explanation, a user would check for `explanation != null` to
indicate an explanation is needed, and then call
`explanation.set("some description")`.
2019-10-03 19:35:59 -07:00
Karel Minarik 9166311622 Update the schema for the REST API specification (#42346)
* Update the REST API specification

This patch updates the REST API spefication in JSON files to better encode deprecated entities,
to improve specification of URL paths, and to open up the schema for future extensions.

Notably, it changes the `paths` from a list of strings to a list of objects, where each
particular object encodes all the information for this particular path: the `parts` and the `methods`.

Among the benefits of this approach is eg. encoding the difference between using the `PUT` and `POST`
methods in the Index API, to either use a specific document ID, or let Elasticsearch generate one.

Also `documentation` becomes an object that supports an `url` and also a `description` which is a
new field.

* Adapt YAML runner to new REST API specification format

The logic for choosing the path to use when running tests has been
simplified, as a consequence of the path parts being listed under each
path in the spec. The special case for create and index has been removed.

Also the parsing code has been hardened so that errors are thrown earlier
when the structure of the spec differs from what expected, and their
error messages should be more helpful.
2019-08-15 17:15:30 +02:00
Yogesh Gaikwad b44c0281e6
Refactor cluster privileges and cluster permission (#45265)
The current implementations make it difficult for
adding new privileges (example: a cluster privilege which is
more than cluster action-based and not exposed to the security
administrator). On the high level, we would like our cluster privilege
either:
- a named cluster privilege
  This corresponds to `cluster` field from the role descriptor
- or a configurable cluster privilege
  This corresponds to the `global` field from the role-descriptor and
allows a security administrator to configure them.

Some of the responsibilities like the merging of action based cluster privileges
are now pushed at cluster permission level. How to implement the predicate
(using Automaton) is being now enforced by cluster permission.

`ClusterPermission` helps in enforcing the cluster level access either by
performing checks against cluster action and optionally against a request.
It is a collection of one or more permission checks where if any of the checks
allow access then the permission allows access to a cluster action.

Implementations of cluster privilege must be able to provide information
regarding the predicates to the cluster permission so that can be enforced.
This is enforced by making implementations of cluster privilege aware of
cluster permission builder and provide a way to specify how the permission is
to be built for a given privilege.

This commit renames `ConditionalClusterPrivilege` to `ConfigurableClusterPrivilege`.
`ConfigurableClusterPrivilege` is a renderable cluster privilege exposed
as a `global` field in role descriptor.

Other than this there is a requirement where we would want to know if a cluster
permission is implied by another cluster-permission (`has-privileges`).
This is helpful in addressing queries related to privileges for a user.
This is not just simply checking of cluster permissions since we do not
have access to runtime information (like request object).
This refactoring does not try to address those scenarios.

Relates #44048
2019-08-12 13:09:34 +10:00
Armin Braun 18f5690ce7
Remove Settings from BaseRestRequest Constructor (#45418)
* Resolving the todo, cleaning up the unused `settings` parameter
* Cleaning up some other minor dead code in affected classes
2019-08-11 21:47:21 +02:00
maarab7 aff21c431e Fix parameter value for calling data.advanceExact (#44205)
While the code works perfectly well for a single segment, it returns the wrong values for multiple segments. E.g. If we have 500 docs in one segment and if we want to get the doc id = 280 then data.advanceExact(topDocs.scoreDocs[i].doc) works fine. If we have two segments, say, with first segment having docs 1-200 and the second segment having docs 201-500, then 280 is fetched from the second segment but is actually 480. Subtracting the docBase (280-200) takes us to the correct document which is 80 in the second segment and actually 280.
2019-07-18 10:51:27 +02:00
Ryan Ernst 7e87c4141b
Convert testclusters to use distro download plugin (#44253)
Test clusters currently has its own set of logic for dealing with
finding different versions of Elasticsearch, downloading them, and
extracting them. This commit converts testclusters to use the
DistributionDownloadPlugin.
2019-07-15 10:39:05 -07:00
Jack Conradson ab7ca7fa0f
Add annotations to Painless whitelist (#43239)
* Start to parse annotations in the whitelist

* Finish parsing annotations

* Finish annotation parsing

* Add docs

* Parser changes.

* Add annotation parser.

* Add annotation tests for Painless core.

* Add example annotation to Painless example extension.

* Response to PR comments.
2019-06-24 09:00:44 -07:00
Martijn Laarman 61c34bbd92
Introduce stability description to the REST API specification (#38413)
* introduce state to the REST API specification

* change state over to stability

* CCR is no GA updated to stable

* SQL is now GA so marked as stable

* Introduce `internal` as state for API's, marks stable in terms of lifetime but unstable in terms of guarantees on its output format since it exposes internal representations

* make setting a wrong stability value, or not setting it at all an error that causes the YAML test suite to fail

* update spec files to be explicit about their stability state

* Document the fact that stability needs to be defined

Otherwise the YAML test runner will fail (with a nice exception message)

* address check style violations

* update rest spec unit tests to include stability

* found one more test spec file not declaring stability, made sure stability appears after documentation everywhere

* cluster.state is stable, mark response in some way to denote its a key value format that can be changed during minors

* mark data frame API's as beta

* remove internal and private as states for an API

* removed the wrong enum values in the Stability Enum in the previous commit
2019-06-12 20:54:51 +02:00
Christoph Büscher 508496e2d1
Fix suggestions for empty indices (#42927)
Currently suggesters return null values on empty shards. Usually this gets replaced
by results from other non-epmty shards, but if the index is completely epmty (e.g. after
creation) the search responses "suggest" is also "null" and we don't render a corresponding
output in the REST response. This is an irritating edge case that requires special handling on
the user side (see #42473) and should be fixed.

This change makes sure every suggester type (completion, terms, phrase) returns at least an
empty skeleton suggestion output, even for empty shards. This way, even if we don't find
any suggestions anywhere, we still return and output the empty suggestion.

Closes #42473
2019-06-12 15:41:41 +02:00