* [DOCS] Adding get snapshot API docs (#59098)
* Adding page for get snapshot API.
* Adding values for state and cleaning up some other formatting.
* Adding missing forward slash to GET request.
* Updating values for start_time and end_time in TESTRESPONSE.
* Swap "return" for "retrieve"
* Swap "return" for "retrieve" 2
* Change .snapshot to .response
* Adding response parameters and incorporating edits from review.
* Update response example to include repository info
* Change dash to underscore
* Add data type for snapshot in response
* Incorporating review comments and adding missing response definitions.
* Minor rewording in description.
* Removing multi-snapshot support for 7.x.
* Changing end_time value from build error.
* Removing .response from snippet testing.
These tests sometimes install a template so they can be compatible with older versions, but they run
amok of the occasionally installed "global" template which changes the default number of shards.
This commit adds `allowedWarnings` and allows these warnings to be present, but doesn't fail if they
are not (since the global template is only randomly installed).
Resolves#58807Resolves#58258
The recovery chunk size setting was injected in #58018, but too
aggressively and broke several tests. This change removes that
random injection.
Relates #58018
We are leaking a FileChannel in #39585 if we release a safe commit with
CancellableThreads. Although it is a bug in Lucene where we do not close
a FileChannel if we failed to create a NIOFSIndexInput, I think it's
safer if we release a safe commit using the generic thread pool instead.
Closes#39585
Relates #45409
Waiting `INIT` here is dead code in newer versions that don't use `INIT`
any longer and leads to nothing being written to the repository in older versions
if the snapshot is cancelled at the `INIT` step which then breaks repo consistency
checks.
Since we have other tests ensuring that snapshot abort works properly we can just remove
the wait for `INIT` here and backport this down to 7.8 to fix tests.
relates #59140
Changes:
* Documents the `size` default as `10`.
* Updates `size` param def to note its relation to pipes.
* Updates the `head` and `tail` pipe docs to modify sequences.
* Documents the `fetch_size` parameter.
Relates to #59014 and #59063
Backport of #59076 to 7.x branch.
The commit makes the following changes:
* The timestamp field of a data stream definition in a composable
index template can only be set to '@timestamp'.
* Removed custom data stream timestamp field validation and reuse the validation from `TimestampFieldMapper` and
instead only check that the _timestamp field mapping has been defined on a backing index of a data stream.
* Moved code that injects _timestamp meta field mapping from `MetadataCreateIndexService#applyCreateIndexRequestWithV2Template58956(...)` method
to `MetadataIndexTemplateService#collectMappings(...)` method.
* Fixed a bug (#58956) that cases timestamp field validation to be performed
for each template and instead of the final mappings that is created.
* only apply _timestamp meta field if index is created as part of a data stream or data stream rollover,
this fixes a docs test, where a regular index creation matches (logs-*) with a template with a data stream definition.
Relates to #58642
Relates to #53100Closes#58956Closes#58583
ES EQL queries do not support the comparison of a variable, such as
a field value, to another variable.
This adds a related para and example to the EQL syntax docs.
Today we empty the searchable snapshots cache when cleanly closing a
shard, but leak cache files in some cases involving an unclean shutdown.
Such leaks are not permanent, they are cleaned up on shard relocation or
deletion, but they still might last for arbitrarily long until that
happens. This commit introduces a cleanup process that runs during node
startup to catch such leaks sooner.
Also, today we permit searchable snapshots to be held on custom data
paths, and store the corresponding cache files within the custom
location. Supporting this feature would make the cleanup process
significantly more complicated since it would require each node to parse
the index metadata for the shards it held before shutdown. Yet, this
feature is undocumented and offers minimal benefits to searchable
snapshots. Therefore with this commit we forbid custom data paths for
searchable snapshot shards.
This makes a `parentCardinality` available to every `Aggregator`'s ctor
so it can make intelligent choices about how it collects bucket values.
This replaces `collectsFromSingleBucket` and is similar to it but:
1. It supports `NONE`, `ONE`, and `MANY` values and is generally
extensible if we decide we can use more precise counts.
2. It is more accurate. `collectsFromSingleBucket` assumed that all
sub-aggregations live under multi-bucket aggregations. This is
normally true but `parentCardinality` is properly carried forward
for single bucket aggregations like `filter` and for multi-bucket
aggregations configured in single-bucket for like `range` with a
single range.
While I was touching every aggregation I renamed `doCreateInternal` to
`createMapped` because that seemed like a much better name and it was
right there, next to the change I was already making.
Relates to #56487
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
In order to ensure that we do not write a broken piece of `RepositoryData`
because the phyiscal repository generation was moved ahead more than one step
by erroneous concurrent writing to a repository we must check whether or not
the current assumed repository generation exists in the repository physically.
Without this check we run the risk of writing on top of stale cached repository data.
Relates #56911
Corrected condition that caused a sequence window to be skipped when a query
returns no results by checking not just the current stage but also following
ones as they can match with in-flight sequences.
Improve logging
Fix NPE when emptying a SequenceGroup
Increase randomization in testing
Make maxspan inclusive (up to and equal to value vs just up to)
(cherry picked from commit ad32c488688cb350c2934dfca03af86045e997b0)
Ensure blocking tasks are running before submitting more no-op tasks. This ensures no task would be popped out of the queue unexpectedly, which in turn guarantees the rejection of subsequent authentication request.
Currently we assert that the reason we fail collecting nodes in this
test is due to the fact that no seeds are available or no connections
could be established to cluster_2. However, the collection could fail if
we cannot establish connections to cluster_1. This commit adds that as
an acceptible assertion.
Today, we send operations in phase2 of peer recoveries batch by batch
sequentially. Normally that's okay as we should have a fairly small of
operations in phase 2 due to the file-based threshold. However, if
phase1 takes a lot of time and we are actively indexing, then phase2 can
have a lot of operations to replay.
With this change, we will send multiple batches concurrently (defaults
to 1) to reduce the recovery time.
Backport of #58018
This commit adds validation that when a composable index template is updated, that the number
of unreferenced data streams does not increase. While it is still possible to have data streams
without a backing template (through snapshot restoration), this reduces the chance of getting
in to that scenario.
Relates to #53100
Currently in the recovery request tracker tests we place the futures
into the future map on the GENERIC thread. It is possible that the test
has already advanced past the point where we block on these futures
before they are placed in the map. This introduces other potential
failures as we expect all futures have been completed. This commit fixes
the test by places the futures in the map prior to dispatching.
The composite role that is used for authz, following the authn with an API key,
is an intersection of the privileges from the owner role and the key privileges defined
when the key has been created.
This change ensures that the `#names` property of such a role equals the `#names`
property of the key owner role, thereby rectifying the value for the `user.roles`
audit event field.
The test would try to prepare a `Rounding` even when there aren't any
buckets. This would fail because there is no range over which to prepare
the rounding. It turns out that we don't need the rounding in that case
so we just use `null` then.
Closes#59131
* GET data stream API returns additional information (#59128)
This adds the data stream's index template, the configured ILM policy
(if any) and the health status of the data stream to the GET _data_stream
response.
Restoring a data stream from a snapshot could install a data stream that
doesn't match any composable templates. This also makes the `template`
field in the `GET _data_stream` response optional.
(cherry picked from commit 0d9c98a82353b088c782b6a04c44844e66137054)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>
Small edit highlighting the fact that atomic cluster state change does not guarantee lack of errors for in-flight requests.
Co-authored-by: James Rodewig <james.rodewig@elastic.co>
Co-authored-by: Grzegorz Banasiak <grzegorz.banasiak@elastic.co>
This removes the blocking model lookup from the `inference` aggregator's
builder by integrating it into the request rewrite process that loads
stuff asynchronously.
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
If the recovery source is on an old node (before 7.2), then the recovery
target won't have the safe commit after phase1 because the recovery
source does not send the global checkpoint in the clean_files step. And
if the recovery fails and retries, then the recovery stage won't
transition properly. If a sync_id is used in peer recovery, then the
clean_files step won't be executed to move the stage to TRANSLOG.
Relates ##7187
Closes#57708
Fixed an issue #59082 introduced. We have to wait for no more operations
in all tests here not just the one we were waiting in already so that the cleanup
operation from the parent class can run without failure.
This request:
```
POST /_search
{
"aggs": {
"a": {
"adjacency_matrix": {
"filters": {
"1": {
"terms": { "t": { "index": "lookup", "id": "1", "path": "t" } }
}
}
}
}
}
}
```
Would fail with a 500 error and a message like:
```
{
"error": {
"root_cause": [
{
"type": "illegal_state_exception",
"reason":"async actions are left after rewrite"
}
]
}
}
```
This fixes that by moving the query rewrite phase from a synchronous
call on the data nodes into the standard aggregation rewrite phase which
can properly handle the asynchronous actions.
Today we do not allow a node to start if its filesystem is readonly, but
it is possible for a filesystem to become readonly while the node is
running. We don't currently have any infrastructure in place to make
sure that Elasticsearch behaves well if this happens. A node that cannot
write to disk may be poisonous to the rest of the cluster.
With this commit we periodically verify that nodes' filesystems are
writable. If a node fails these writability checks then it is removed
from the cluster and prevented from re-joining until the checks start
passing again.
Closes#45286
Co-authored-by: Bukhtawar Khan <bukhtawar7152@gmail.com>
Mark Vieira
Adam Locke
Lee Hinman
Nhat Nguyen
James Rodewig
Armin Braun
Martijn van Groningen
Rene Groeschke
David Turner
David Kyle
Nik Everett
Dan Hermann
Costin Leau
Yannick Welsch
Yang Wang
Tim Brooks
Lisa Cawley
Albert Zaharovits
Benjamin Trent
Andrei Dan
Jason Tedor
Christoph Büscher