Elasticsearch has long [supported](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html#index-versioning) compare and set (a.k.a optimistic concurrency control) operations using internal document versioning. Sadly that approach is flawed and can sometime do the wrong thing. Here's the relevant excerpt from the resiliency status page:
> When a primary has been partitioned away from the cluster there is a short period of time until it detects this. During that time it will continue indexing writes locally, thereby updating document versions. When it tries to replicate the operation, however, it will discover that it is partitioned away. It won’t acknowledge the write and will wait until the partition is resolved to negotiate with the master on how to proceed. The master will decide to either fail any replicas which failed to index the operations on the primary or tell the primary that it has to step down because a new primary has been chosen in the meantime. Since the old primary has already written documents, clients may already have read from the old primary before it shuts itself down. The version numbers of these reads may not be unique if the new primary has already accepted writes for the same document
We recently [introduced](https://www.elastic.co/guide/en/elasticsearch/reference/6.x/optimistic-concurrency-control.html) a new sequence number based approach that doesn't suffer from this dirty reads problem.
This commit removes support for internal versioning as a concurrency control mechanism in favor of the sequence number approach.
Relates to #1078
Currently the snapshot/restore process manually sets the global
checkpoint to the max sequence number from the restored segements. This
does not work for Ccr as this will lead to documents that would be
recovered in the normal followering operation from being recovered.
This commit fixes this issue by setting the initial global checkpoint to
the existing local checkpoint.
`CreateIndexRequest#source(Map<String, Object>, ... )`, which is used when
deserializing index creation requests, accidentally accepts mappings that are
nested twice under the type key (as described in the bug report #38266).
This in turn causes us to be too lenient in parsing typeless mappings. In
particular, we accept the following index creation request, even though it
should not contain the type key `_doc`:
```
PUT index?include_type_name=false
{
"mappings": {
"_doc": {
"properties": { ... }
}
}
}
```
There is a similar issue for both 'put templates' and 'put mappings' requests
as well.
This PR makes the minimal changes to detect and reject these typed mappings in
requests. It does not address #38266 generally, or attempt a larger refactor
around types in these server-side requests, as I think this should be done at a
later time.
The backport of #38022 introduced types-deprecation warning for get/put template requests
that cause problems on tests master in mixed cluster scenarios. While these warnings are
caught and ignored in regular Rest tests, the get template requests in XPackRestTestHelper
were missed.
Closes#38412
Tests can override assertToXContentEquivalence() in case their xcontent
cannot be directly compared (e.g. due to insertion order in maps
affecting the xcontent ordering). But the `testHlrcFromXContent` test
hardcoded the equivalence test to `true` instead of consulting
`assertToXContentEquivalence()`
Fixes#36034
With this change we no longer support pluggable discovery implementations. No
known implementations of `DiscoveryPlugin` actually override this method, so in
practice this should have no effect on the wider world. However, we were using
this rather extensively in tests to provide the `test-zen` discovery type. We
no longer need a separate discovery type for tests as we no longer need to
customise its behaviour.
Relates #38410
the clock resolution changed from jdk8->jdk10, hence the test is passing
in jdk8 but failing in jdk10. The Watcher's objects are serialised and
deserialised with milliseconds precision, making test to fail in jdk 10
and higher
closes#38400
The test is now expected to be always passing no matter what the random
locale is. This is fixed with using jdk ZoneId.systemDefault() in both
the test and CronEvalTool
closes#35687
If a job cannot be assigned to a node because an index it
requires is unavailable and there are lazy ML nodes then
index unavailable should be reported as the assignment
explanation rather than waiting for a lazy ML node.
Introduced FollowParameters class that put follow, resume follow,
put auto follow pattern requests and follow info response classes reuse.
The FollowParameters class had the fields, getters etc. for the common parameters
that all these APIs have. Also binary and xcontent serialization /
parsing is handled by this class.
The follow, resume follow, put auto follow pattern request classes originally
used optional non primitive fields, so FollowParameters has that too and the follow info api can handle that now too.
Also the followerIndex field can in production only be specified via
the url path. If it is also specified via the request body then
it must have the same value as is specified in the url path. This
option only existed to xcontent testing. However the AbstractSerializingTestCase
base class now also supports createXContextTestInstance() to provide
a different test instance when testing xcontent, so allowing followerIndex
to be specified via the request body is no longer needed.
By moving the followerIndex field from Body to ResumeFollowAction.Request
class and not allowing the followerIndex field to be specified via
the request body the Body class is redundant and can be removed. The
ResumeFollowAction.Request class can then directly use the
FollowParameters class.
For consistency I also removed the ability to specified followerIndex
in the put follow api and the name in put auto follow pattern api via
the request body.
Authn is enabled only if `license_type` is non `basic`, but `basic` is
what the `LicenseService` generates implicitly. This commit explicitly sets
license type to `trial`, which allows for authn, in the `SecuritySettingsSource`
which is the settings configuration parameter for `InternalTestCluster`s.
The real problem, that had created tests failures like #31028 and #32685, is
that the check `licenseState.isAuthAllowed()` can change sporadically. If it were
to return `true` or `false` during the whole test there would be no problem.
The problem manifests when it turns from `true` to `false` right before `Realms.asList()`.
There are other license checks before this one (request filter, token service, etc)
that would not cause a problem if they would suddenly see the check as `false`.
But switching to `false` before `Realms.asList()` makes it appear that no installed
realms could have handled the authn token which is an authentication error, as can
be seen in the failing tests.
Closes#31028#32685
Renames the following settings to remove the mention of `zen` in their names:
- `discovery.zen.hosts_provider` -> `discovery.seed_providers`
- `discovery.zen.ping.unicast.concurrent_connects` -> `discovery.seed_resolver.max_concurrent_resolvers`
- `discovery.zen.ping.unicast.hosts.resolve_timeout` -> `discovery.seed_resolver.timeout`
- `discovery.zen.ping.unicast.hosts` -> `discovery.seed_addresses`
* Adding apm_user
* Fixing SecurityDocumentationIT testGetRoles test
* Adding access to .ml-anomalies-*
* Fixing APM test, we don't have access to the ML state index
X-Pack security supports built-in authentication service
`token-service` that allows access tokens to be used to
access Elasticsearch without using Basic authentication.
The tokens are generated by `token-service` based on
OAuth2 spec. The access token is a short-lived token
(defaults to 20m) and refresh token with a lifetime of 24 hours,
making them unsuitable for long-lived or recurring tasks where
the system might go offline thereby failing refresh of tokens.
This commit introduces a built-in authentication service
`api-key-service` that adds support for long-lived tokens aka API
keys to access Elasticsearch. The `api-key-service` is consulted
after `token-service` in the authentication chain. By default,
if TLS is enabled then `api-key-service` is also enabled.
The service can be disabled using the configuration setting.
The API keys:-
- by default do not have an expiration but expiration can be
configured where the API keys need to be expired after a
certain amount of time.
- when generated will keep authentication information of the user that
generated them.
- can be defined with a role describing the privileges for accessing
Elasticsearch and will be limited by the role of the user that
generated them
- can be invalidated via invalidation API
- information can be retrieved via a get API
- that have been expired or invalidated will be retained for 1 week
before being deleted. The expired API keys remover task handles this.
Following are the API key management APIs:-
1. Create API Key - `PUT/POST /_security/api_key`
2. Get API key(s) - `GET /_security/api_key`
3. Invalidate API Key(s) `DELETE /_security/api_key`
The API keys can be used to access Elasticsearch using `Authorization`
header, where the auth scheme is `ApiKey` and the credentials, is the
base64 encoding of API key Id and API key separated by a colon.
Example:-
```
curl -H "Authorization: ApiKey YXBpLWtleS1pZDphcGkta2V5" http://localhost:9200/_cluster/health
```
Closes#34383
We mention in our documentation for the token
expiration configuration maximum value is 1 hour
but do not enforce it. This commit adds max limit
to the TOKEN_EXPIRATION setting.
This test should not pass until CCR finishes integrating shard history
retention leases. It currently sometimes passes (which is a bug in the
test), but cannot pass reliably until the linked issue is resolved.
There are two issues regarding the way that we sync mapping from leader
to follower when a ccr restore is completed:
1. The returned mapping from a cluster service might not be up to date
as the mapping of the restored index commit.
2. We should not compare the mapping version of the follower and the
leader. They are not related to one another.
Moreover, I think we should only ensure that once the restore is done,
the mapping on the follower should be at least the mapping of the copied
index commit. We don't have to sync the mapping which is updated after
we have opened a session.
Relates #36879Closes#37887
This is related to #35975. Currently when an index falls behind a leader
it encounters a fatal exception. This commit adds a test for that
scenario. Additionally, it tests that the user can stop following, close
the follower index, and put follow again. After the indexing is
re-bootstrapped, it will recover the documents it lost in normal
following operations.
This commit fixes the pinning of SSLContexts to TLSv1.2 in the
SSLConfigurationReloaderTests. The pinning was added for the initial
creation of clients and webservers but the updated contexts would
default to TLSv1.3, which is known to cause hangs with the
MockWebServer that we use.
Relates #38103Closes#38247
This PR removes the use of document types from the monitoring exporters and template + watches setup code.
It does not remove the notion of types from the monitoring bulk API endpoint "front end" code as that code will eventually just go away in 8.0 and be replaced with Beats as collectors/shippers directly to the monitoring cluster.
At times, we need to check for usage of deprecated settings in settings
which should not be returned by the NodeInfo API. This commit changes
the deprecation info API to run all node checks locally so that these
settings can be checked without exposing them via any externally
accessible API.
This commit introduces a background sync for retention leases. The idea
here is that we do a heavyweight sync when adding a new retention lease,
and then periodically we want to background sync any retention lease
renewals to the replicas. As long as the background sync interval is
significantly lower than the extended lifetime of a retention lease, it
is okay if from time to time a replica misses a sync (it will still have
an older version of the lease that is retaining more data as we assume
that renewals do not decrease the retaining sequence number). There are
two follow-ups that will come after this commit. The first is to address
the fact that we have not adapted the should periodically flush logic to
possibly flush the retention leases. We want to do something like flush
if we have not flushed in the last five minutes and there are renewed
retention leases since the last time that we flushed. An additional
follow-up will remove the syncing of retention leases when a retention
lease expires. Today this sync could be invoked in the background by a
merge operation. Rather, we will move the syncing of retention lease
expiration to be done under the background sync. The background sync
will use the heavyweight sync (write action) if a lease has expired, and
will use the lightweight background sync (replication action) otherwise.
The explanation so far can be invaluable for troubleshooting
as incorrect decisions made early on in the structure analysis
can result in seemingly crazy decisions or timeouts later on.
Relates elastic/kibana#29821
Today the following settings in the `discovery.zen` namespace are still used:
- `discovery.zen.no_master_block`
- `discovery.zen.hosts_provider`
- `discovery.zen.ping.unicast.concurrent_connects`
- `discovery.zen.ping.unicast.hosts.resolve_timeout`
- `discovery.zen.ping.unicast.hosts`
This commit deprecates all other settings in this namespace so that they can be
removed in the next major version.
It would be beneficial to apply some of the request interceptors even
when features are disabled. This change reworks the way we build that
list so that the interceptors we always want to use are constructed
outside of the settings check.
Instead of throwing an exception, use an unresolved attribute to pass
the message to the Verifier.
Additionally improve the parser to save the extended source for the
Aggregate and OrderBy.
Close#38208
The culprit in #38097 is an `IndicesRequest` that has no indices,
but instead of `request.indices()` returning `null` or `String[0]`
it returned `String[] {null}` . This tripped the audit filter.
I have addressed this in two ways:
1. `request.indices()` returning `String[] {null}` is treated as `null`
or `String[0]`, i.e. no indices
2. `null` values among the roles and indices lists, which are
unexpected, will never again stumble the audit filter; `null` values
are treated as special values that will not match any policy,
i.e. their events will always be printed.
Closes#38097
* Add checks for Grouping functions restriction to be placed inside GROUP BY
* Fixed bug where GROUP BY HISTOGRAM (not using alias) wasn't recognized
properly in the Verifier due to functions equality not working correctly.
Adds a Step to the Shrink and Delete actions which prevents those
actions from running on a leader index - all follower indices must first
unfollow the leader index before these actions can run. This prevents
the loss of history before follower indices are ready, which might
otherwise result in the loss of data.
Introduce client-side sorting of groups based on aggregate
functions. To allow this, the Analyzer has been extended to push down
to underlying Aggregate, aggregate function and the Querier has been
extended to identify the case and consume the results in order and sort
them based on the given columns.
The underlying QueryContainer has been slightly modified to allow a view
of the underlying values being extracted as the columns used for sorting
might not be requested by the user.
The PR also adds minor tweaks, mainly related to tree output.
Close#35118
Because concurrent sync requests from a primary to its replicas could be
in flight, it can be the case that an older retention leases collection
arrives and is processed on the replica after a newer retention leases
collection has arrived and been processed. Without a defense, in this
case the replica would overwrite the newer retention leases with the
older retention leases. This commit addresses this issue by introducing
a versioning scheme to retention leases. This versioning scheme is used
to resolve out-of-order processing on the replica. We persist this
version into Lucene and restore it on recovery. The encoding of
retention leases is starting to get a little ugly. We can consider
addressing this in a follow-up.
There was a bug where creating a new policy would start
the ILM service, even if it was stopped. This change ensures
that there is no change to the existing operation mode
This suite still fails one per week sometimes with a worrying assertion.
Sadly we are still unable to find the actual source.
Expected: <SeqNoStats{maxSeqNo=229, localCheckpoint=86, globalCheckpoint=86}>
but: was <SeqNoStats{maxSeqNo=229, localCheckpoint=-1, globalCheckpoint=86}>
This change enables trace log in the suite so we will have a better
picture if this fails again.
Relates #3333
This PR removes the temporary change we made to the yml test harness in #37285
to automatically set `include_type_name` to `true` in index creation requests
if it's not already specified. This is possible now that the vast majority of
index creation requests were updated to be typeless in #37611. A few additional
tests also needed updating here.
Additionally, this PR updates the test harness to set `include_type_name` to
`false` in index creation requests when communicating with 6.x nodes. This
mirrors the logic added in #37611 to allow for typeless document write requests
in test set-up code. With this update in place, we can remove many references
to `include_type_name: false` from the yml tests.
Unlike assertBusy, awaitBusy does not retry if the code-block throws an
AssertionError. A refresh in atLeastDocsIndexed can fail because we call
this method while we are closing some node in FollowerFailOverIT.
This PR adds the `monitor/xpack/info` cluster-level privilege to the built-in `monitoring_user` role.
This privilege is required for the Monitoring UI to call the `GET _xpack API` on the Monitoring Cluster. It needs to do this in order to determine the license of the Monitoring Cluster, which further determines whether Cluster Alerts are shown to the user or not.
Resolves#37970.
In 7.x Java timestamp formats are the default timestamp format and
there is no need to prefix them with "8". (The "8" prefix was used
in 6.7 to distinguish Java timestamp formats from Joda timestamp
formats.)
This change removes the "8" prefixes from timestamp formats in the
output of the ML file structure finder.
This commit enables the use of TLSv1.3 with security by enabling us to
properly map `TLSv1.3` in the supported protocols setting to the
algorithm for a SSLContext. Additionally, we also enable TLSv1.3 by
default on JDKs that support it.
An issue was uncovered with the MockWebServer when TLSv1.3 is used that
ultimately winds up in an endless loop when the client does not trust
the server's certificate. Due to this, SSLConfigurationReloaderTests
has been pinned to TLSv1.2.
Closes#32276
In 6.3 trial licenses were changed to default to security
disabled, and ee added some heuristics to detect when security should
be automatically be enabled if `xpack.security.enabled` was not set.
This change removes those heuristics, and requires that security be
explicitly enabled (via the `xpack.security.enabled` setting) for
trial licenses.
Relates: #38009
Currently we use the raw byte array length when calling the IndexInput
read call to determine how many bytes we want to read. However, due to
how BigArrays works, the array length might be longer than the reference
length. This commit fixes the issue and uses the BytesRef length when
calling read. Additionally, it expands the index follow test to index
many more documents. These documents should potentially lead to large
enough segment files to trigger scenarios where this fix matters.
Scheduler.schedule(...) would previously assume that caller handles
exception by calling get() on the returned ScheduledFuture.
schedule() now returns a ScheduledCancellable that no longer gives
access to the exception. Instead, any exception thrown out of a
scheduled Runnable is logged as a warning.
This is a continuation of #28667, #36137 and also fixes#37708.
FIRST and LAST can be used with one argument and work similarly to MIN
and MAX but they are implemented using a Top Hits aggregation and
therefore can also operate on keyword fields. When a second argument is
provided then they return the first/last value of the first arg when its
values are ordered ascending/descending (respectively) by the values of
the second argument. Currently because of the usage of a Top Hits
aggregation FIRST and LAST cannot be used in the HAVING clause of a
GROUP BY query to filter on the results of the aggregation.
Closes: #35639
With #37566 we have introduced the ability to merge multiple search responses into one. That makes it possible to expose a new way of executing cross-cluster search requests, that makes CCS much faster whenever there is network latency between the CCS coordinating node and the remote clusters. The coordinating node can now send a single search request to each remote cluster, which gets reduced by each one of them. from + size results are requested to each cluster, and the reduce phase in each cluster is non final (meaning that buckets are not pruned and pipeline aggs are not executed). The CCS coordinating node performs an additional, final reduction, which produces one search response out of the multiple responses received from the different clusters.
This new execution path will be activated by default for any CCS request unless a scroll is provided or inner hits are requested as part of field collapsing. The search API accepts now a new parameter called ccs_minimize_roundtrips that allows to opt-out of the default behaviour.
Relates to #32125
* Added SSL configuration options tests
Removed the allow.self.signed option from the documentation since we allow
by default self signed certificates as well.
* Added more tests
The existing implementation was slow due to exceptions being thrown if
an accessor did not have a time zone. This implementation queries for
having a timezone, local time and local date and also checks for an
instant preventing to throw an exception and thus speeding up the conversion.
This removes the existing method and create a new one named
DateFormatters.from(TemporalAccessor accessor) to resemble the naming of
the java time ones.
Before this change an epoch millis parser using the toZonedDateTime
method took approximately 50x longer.
Relates #37826
* move watcher to seq# occ
* top level set
* fix parsing and missing setters
* share toXContent for PutResponse and rest end point
* fix redacted password
* fix username reference
* fix deactivate-watch.asciidoc have seq no references
* add seq# + term to activate-watch.asciidoc
* more doc fixes
This commit fixes the test case that ensures only a priority
less then 0 is used with testNonPositivePriority. This also
allows the HLRC to support a value of 0.
Closes#37652
Previously, ShrinkAction would fail if
it was executed on an index that had
the same number of shards as the target
shrunken number.
This PR introduced a new BranchingStep that
is used inside of ShrinkAction to branch which
step to move to next, depending on the
shard values. So no shrink will occur if the
shard count is unchanged.
This commit allows implementors of the `HandledTransportAction` to
specify what thread the action should be executed on. The motivation for
this commit is that certain CCR requests should be performed on the
generic threadpool.
The apache commons http client implementations recently released
versions that solve TLS compatibility issues with the new TLS engine
that supports TLSv1.3 with JDK 11. This change updates our code to
use these versions since JDK 11 is a supported JDK and we should
allow the use of TLSv1.3.
This fixes#38027. Currently we assert that all shards have failed.
However, it is possible that some shards do not have segement files
created yet. The action that we block is fetching these segement files
so it is possible that some shards successfully recover.
This commit changes the assertion to ensure that at least some of the
shards have failed.
Today we pass `discovery.zen.minimum_master_nodes` to nodes started up in
tests, but for 7.x nodes this setting is not required as it has no effect.
This commit removes this setting so that nodes are started with more realistic
configurations, and deprecates it.
Types have been deprecated and this commit removes the documentation
for specifying types in the index action, and search input/transform.
Relates #37594#35190
Doc-value fields now return a value that is based on the mappings rather than
the script implementation by default.
This deprecates the special `use_field_mapping` docvalue format which was added
in #29639 only to ease the transition to 7.x and it is not necessary anymore in
7.0.
The certgen, certutil and saml-metadata tools did not correctly return
their exit code to the calling shell.
These commands now explicitly exit with the code that was returned
from the main(args, terminal) method.
This commit fixes a potential race in the IndexFollowingIT. Currently it
is possible that we fetch the task metadata, it is null, and that throws
a null pointer exception. Assertbusy does not catch null pointer
exceptions. This commit assertions that the metadata is not null.
This is related to #35975. It adds a action timeout setting that allows
timeouts to be applied to the individual transport actions that are
used during a ccr recovery.
Restricted indices (currently only .security-6 and .security) are special
internal indices that require setting the `allow_restricted_indices` flag
on every index permission that covers them. If this flag is `false`
(default) the permission will not cover these and actions against them
will not be authorized.
However, the monitoring APIs were the only exception to this rule.
This exception is herein forfeited and index monitoring privileges have to be
granted explicitly, using the `allow_restricted_indices` flag on the permission,
as is the case for any other index privilege.
This commit modifies the put follow index action to use a
CcrRepository when creating a follower index. It routes
the logic through the snapshot/restore process. A
wait_for_active_shards parameter can be used to configure
how long to wait before returning the response.
This change adds a _meta field storing the version in which
the index mappings were last updated to the 3 ML indices
that didn't previously have one:
- .ml-annotations
- .ml-meta
- .ml-notifications
All other ML indices already had such a _meta field.
This field will be useful if we ever need to automatically
update the index mappings during a future upgrade.
Runnables can be submitted to
AutodetectProcessManager.AutodetectWorkerExecutorService
without error after it has been shutdown which can lead
to requests timing out as their handlers are never called
by the terminated executor.
This change throws an EsRejectedExecutionException if a
runnable is submitted after after the shutdown and calls
AbstractRunnable.onRejection on any tasks not run.
Closes#37108
This commit changes the TransportVerifyShardBeforeCloseAction so that it issues a
forced flush, forcing the translog and the Lucene commit to contain the same max seq
number and global checkpoint in the case the Translog contains operations that were
not written in the IndexWriter (like a Delete that touches a non existing doc). This way
the assertion added in #37426 won't trip.
Related to #33888
This commit moves the auditing of job deletion related errors
to the final listener in the job delete action. This ensures
any error that occurs during job deletion is audited.
In order to support JSON log format, a custom pattern layout was used and its configuration is enclosed in ESJsonLayout. Users are free to use their own patterns, but if smooth Beats integration is needed, they should use ESJsonLayout. EvilLoggerTests are left intact to make sure user's custom log patterns work fine.
To populate additional fields node.id and cluster.uuid which are not available at start time,
a cluster state update will have to be received and the values passed to log4j pattern converter.
A ClusterStateObserver.Listener is used to receive only one ClusteStateUpdate. Once update is received the nodeId and clusterUUid are set in a static field in a NodeAndClusterIdConverter.
Following fields are expected in JSON log lines: type, tiemstamp, level, component, cluster.name, node.name, node.id, cluster.uuid, message, stacktrace
see ESJsonLayout.java for more details and field descriptions
Docker log4j2 configuration is now almost the same as the one use for ES binary.
The only difference is that docker is using console appenders, whereas ES is using file appenders.
relates: #32850
This commit allows JIRA API fields that require a list of key/value
pairs (maps), such as JIRA "components" to use use template snippets
(e.g. {{ctx.payload.foo}}). Prior to this change the templated value
(not the de-referenced value) would be sent via the API and error.
Closes#30068
We inject an Unfollow action before Shrink because the Shrink action
cannot be safely used on a following index, as it may not be fully
caught up with the leader index before the "original" following index is
deleted and replaced with a non-following Shrunken index. The Unfollow
action will verify that 1) the index is marked as "complete", and 2) all
operations up to this point have been replicated from the leader to the
follower before explicitly disconnecting the follower from the leader.
Injecting an Unfollow action before the Rollover action is done mainly
as a convenience: This allow users to use the same lifecycle policy on
both the leader and follower cluster without having to explictly modify
the policy to unfollow the index, while doing what we expect users to
want in most cases.
If the index request is executed before the mapping update is applied on
the IndexShard, the index request will perform a dynamic mapping update.
This mapping update will be timeout (i.e, ProcessClusterEventTimeoutException)
because the latch is not open. This leads to the failure of the index
request and the test. This commit makes sure the mapping is ready
before we execute the index request.
Closes#37807
This commit adds deprecation warnings for index actions
and search actions when executed via watcher. Unit and
integration tests updated accordingly.
relates #35190
* ML: Add MlMetadata.upgrade_mode and API
* Adding tests
* Adding wait conditionals for the upgrade_mode call to return
* Adding tests
* adjusting format and tests
* Adjusting wait conditions for api return and msgs
* adjusting doc tests
* adding upgrade mode tests to black list
We have read and write aliases for the ML results indices. However,
the job still had methods that purported to reliably return the name
of the concrete results index being used by the job. After reindexing
prior to upgrade to 7.x this will be wrong, so the method has been
renamed and the comments made more explicit to say the returned index
name may not be the actual concrete index name for the lifetime of the
job. Additionally, the selection of indices when deleting the job
has been changed so that it works regardless of concrete index names.
All these changes are nice-to-have for 6.7 and 7.0, but will become
critical if we add rolling results indices in the 7.x release stream
as 6.7 and 7.0 nodes may have to operate in a mixed version cluster
that includes a version that can roll results indices.
* Changed `LuceneSnapshot` to throw an `OperationsMissingException` if the requested ops are missing.
* Changed the shard changes api to handle the `OperationsMissingException` and wrap the exception into `ResourceNotFound` exception and include metadata to indicate the requested range can no longer be retrieved.
* Changed `ShardFollowNodeTask` to handle this `ResourceNotFound` exception with the included metdata header.
Relates to #35975
Replace `threadPool().schedule()` / catch
`EsRejectedExecutionException` pattern with direct calls to
`ThreadPool#scheduleUnlessShuttingDown()`.
Closes#36318
This commit introduces the `create_snapshot` cluster privilege and
the `snapshot_user` role.
This role is to be used by "cronable" tools that call the snapshot API
periodically without recurring to the `manage` cluster privilege. The
`create_snapshot` cluster privilege is much more limited compared to
the `manage` privilege.
The `snapshot_user` role grants the privileges to view the metadata of
all indices (including restricted ones, i.e. .security). It obviously grants the
create snapshot privilege but the repository has to be created using another
role. In addition, it grants the privileges to (only) GET repositories and
snapshots, but not create and delete them.
The role does not allow to create repositories. This distinction is important
because snapshotting equates to the `read` index privilege if the user has
control of the snapshot destination, but this is not the case in this instance,
because the role does not grant control over repository configuration.
This commit introduces retention lease syncing from the primary to its
replicas when a new retention lease is added. A follow-up commit will
add a background sync of the retention leases as well so that renewed
retention leases are synced to replicas.
Made the test tolerant to index upgrade being run
in between the old/mixed/upgraded portions. This
can occur because the rolling upgrade tests all
share the same indices.
Fixes#37763
The ML file structure finder has always reported both Joda
and Java time format strings. This change makes the Java time
format strings the ones that are incorporated into mappings
and ingest pipeline definitions.
The BWC syntax of prepending "8" to these formats is used.
This will need to be removed once Java time format strings
become the default in Elasticsearch.
This commit also removes direct imports of Joda classes in the
structure finder unit tests. Instead the core Joda BWC class
is used.
* Exit batch files explictly using ERRORLEVEL
This makes sure the exit code is preserved when calling the batch
files from different contexts other than DOS
Fixes#29582
This also fixes specific error codes being masked by an explict
exit /b 1
causing the useful exitcodes from ExitCodes to be lost.
* fix line breaks for calling cli to match the bash scripts
* indent size of bash files is 2, make sure editorconfig does the same for bat files
* update indenting to match bash files
* update elasticsearch-keystore.bat indenting
* Update elasticsearch-node.bat to exit outside of endlocal
The TransportUnfollowAction updates the index settings but does not
increase the settings version to reflect that change.
This issue has been caught while working on the replication of closed
indices (#33888). The IndexFollowingIT.testUnfollowIndex() started to
fail and this specific assertion tripped. It does not happen on master
branch today because index metadata for closed indices are never
updated in IndexService instances, but this is something that is going
to change with the replication of closed indices.
The unlucky timing can cause this test to fail when the indexing is triggered from `maybeTriggerAsyncJob`. As this is asynchronous, in can finish quicker then the test stepping over to next assertion
The introduced barrier solves the problem
closes#37695
* Remove empty statements
There are a couple of instances of undocumented empty statements all across the
code base. While they are mostly harmless, they make the code hard to read and
are potentially error-prone. Removing most of these instances and marking blocks
that look empty by intention as such.
* Change test, slightly more verbose but less confusing
When upgrading from 5.4 to 5.5 to 6.7 (inclusive) it was
necessary to ensure there was a mapping for type "doc" on
the ML state index before opening a job. This was because
5.4 created a multi-type ML state index.
In version 7.x we can be sure that any such 5.4 index is no
longer in use. It would have had to be reindexed into the
6.x index format prior to the upgrade to version 7.x.
This commit changes the default for the `track_total_hits` option of the search request
to `10,000`. This means that by default search requests will accurately track the total hit count
up to `10,000` documents, requests that match more than this value will set the `"total.relation"`
to `"gte"` (e.g. greater than or equals) and the `"total.value"` to `10,000` in the search response.
Scroll queries are not impacted, they will continue to count the total hits accurately.
The default is set back to `true` (accurate hit count) if `rest_total_hits_as_int` is set in the search request.
I choose `10,000` as the default because that's also the number we use to limit pagination. This means that users will be able to know how far they can jump (up to 10,000) even if the total number of hits is not accurate.
Closes#33028
When an index is frozen, two index settings are updated (index.frozen and
index.search.throttled) but the settings version is left unchanged and does
not reflect the settings update. This commit change the
TransportFreezeIndexAction so that it also increases the settings version
when an index is frozen/unfrozen.
This issue has been caught while working on the replication of closed
indices (#3388) in which index metadata for a closed index are updated
to frozen metadata and this specific assertion tripped.
The default value for ssl.supported_protocols no longer includes TLSv1
as this is an old protocol with known security issues.
Administrators can enable TLSv1.0 support by configuring the
appropriate `ssl.supported_protocols` setting, for example:
xpack.security.http.ssl.supported_protocols: ["TLSv1.2","TLSv1.1","TLSv1"]
Relates: #36021
This deprecates the `xpack.watcher.history.cleaner_service.enabled` setting,
since all newly created `.watch-history` indices in 7.0 will use ILM to manage
their retention.
In 8.0 the setting itself and cleanup actions will be removed.
Resolves#32041
Today, the mapping on the follower is managed and replicated from its
leader index by the ShardFollowTask. Thus, we should prevent users
from modifying the mapping on the follower indices.
Relates #30086
When the arguements of PERCENTILE and PERCENTILE_RANK can be folded,
the `ConstantFolding` rule kicks in and calls the `replaceChildren()`
method on `InnerAggregate` which is created from the aggregation rules
of the `Optimizerz. `InnerAggregate` in turn, cannot implement the method
as the logic of creating a new `InnerAggregate` instance from a list of
`Expression`s resides in the Optimizer. So, instead, `ConstantFolding`
should be applied before any of the aggregations related rules.
Fixes: #37099
* Testing conventions now checks for tests in main
This is the last outstanding feature of the old NamingConventionsTask,
so time to remove it.
* PR review
This change adds a docker compose configuration that's used with
the `elasticsearch.test.fixtures` plugin to start up the image
and check that the TCP ports are up.
We can build on this to add other checks for culster health,
run REST tests, etc.
We can add multiple containers and configurations to the compose
file (e.x. test different env vars) and form clusters.
When we can't map the principal attribute from the configured SAML
attribute in the realm settings, we can't complete the
authentication. We return an error to the user indicating this and
we present them with a list of attributes we did get from the SAML
response to point out that the expected one was not part of that
list. This list will never contain the NameIDs though as they are
not part of the SAMLAttribute list. So we might have a NameID but
just with a different format.
This commit removes the Index Audit Output type, following its deprecation
in 6.7 by 8765a31d4e6770. It also adds the migration notice (settings notice).
In general, the problem with the index audit output is that event indexing
can be slower than the rate with which audit events are generated,
especially during the daily rollovers or the rolling cluster upgrades.
In this situation audit events will be lost which is a terrible failure situation
for an audit system.
Besides of the settings under the `xpack.security.audit.index` namespace, the
`xpack.security.audit.outputs` setting has also been deprecated and will be
removed in 7. Although explicitly configuring the logfile output does not touch
any deprecation bits, this setting is made redundant in 7 so this PR deprecates
it as well.
Relates #29881
The filtering by follower index was completely broken.
Also the wrong persistent tasks were selected, causing the
wrong status to be reported.
Closes#37738
Today we keep the mapping on the follower in sync with the leader's
using the mapping version from changes requests. There are two rare
cases where the mapping on the follower is not synced properly:
1. The returned mapping version (from ClusterService) is outdated than
the actual mapping. This happens because we expose the latest cluster
state in ClusterService after applying it to IndexService.
2. It's possible for the FollowTask to receive an outdated mapping than
the min_required_mapping. In that case, it should fetch the mapping
again; otherwise, the follower won't have the right mapping.
Relates to #31140
In some cases we only have a string collection instead of a string list
that we want to serialize out. We have a convenience method for writing
a list of strings, but no such method for writing a collection of
strings. Yet, a list of strings is a collection of strings, so we can
simply liberalize StreamOutput#writeStringList to be more generous in
the collections that it accepts and write out collections of strings
too. On the other side, we do not have a convenience method for reading
a list of strings. This commit addresses both of these issues.
* 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
Some steps, such as steps that delete, close, or freeze an index, may fail due to a currently running snapshot of the index. In those cases, rather than move to the ERROR step, we should retry the step when the snapshot has completed.
This change adds an abstract step (`AsyncRetryDuringSnapshotActionStep`) that certain steps (like the ones I mentioned above) can extend that will automatically handle a situation where a snapshot is taking place. When a `SnapshotInProgressException` is received by the listener wrapper, a `ClusterStateObserver` listener is registered to wait until the snapshot has completed, re-running the ILM action when no snapshot is occurring.
This also adds integration tests for these scenarios (thanks to @talevy in #37552).
Resolves#37541
This commit moves the aggregation and mapping code from joda time to
java time. This includes field mappers, root object mappers, aggregations with date
histograms, query builders and a lot of changes within tests.
The cut-over to java time is a requirement so that we can support nanoseconds
properly in a future field mapper.
Relates #27330
Boaz Leskes
Tim Brooks
Julie Tibshirani
Christoph Büscher
Zachary Tong
David Turner
Przemyslaw Gomulka
Marios Trivyzas
Armin Braun
David Roberts
Martijn van Groningen
Jason Tedor
Andrei Stefan
Albert Zaharovits
Brandon Kobel
Yogesh Gaikwad
Gordon Brown
Nhat Nguyen
Jay Modi
Shaunak Kashyap
Tim Vernum
Costin Leau
Tal Levy
Benjamin Trent
Henning Andersen
Alpar Torok
Luca Cavanna
Josh Soref
Alexander Reelsen
Jake Landis
Albert Zaharovits
Adrien Grand
David Kyle
Tanguy Leroux
Henrique Gonçalves
Dimitris Athanasiou
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