As long as `bestEffortConsistency` is `true`, the value of `latestKnownRepoGen`
can be updated as a result of reads. We can only assert that `latestKnownRepoGen`
and cluster state move in lock-step if `bestEffortConsistency` was `false` before
updating the metadata generation as well as after.
Closes#62877
Ignore by default unavailable indices (same as ES) and verify that
allowNoIndices is set to false since at least one index is required
for validating the query.
Fix#62986
(cherry picked from commit fd75ac27223cd1b699b8d9c311dc401a39f9e0c8)
Do not filter by tiebreaker while searching sequence matches as
it's not monotonic and thus can filter out valid data.
Fix#62781
(cherry picked from commit 4d62198df70f3b70f8b6e7730e888057652c18a8)
Point-In-Time queries cannot be ran on individual indices but on all.
Thus all PIT queries move their index from the request level to a filter
so this condition is fulfilled while keeping the query scoped
accordingly.
Fix#63132
(cherry picked from commit c8eb4f724d5dcc0fcc172c6219ecfbc1dc1fbbae)
There is a small race when processing the cluster state that is used to
establish a newly elected leader as master of the cluster: it can pick the term
in its master state update task from a different (newer) election. This trips
an assertion in `Coordinator.publish(...)` where we claim that the term on the
state allows to uniquely define the pre-state but this isn't so. There are no
bad consequences of this race since such a publication fails later on anyway.
This PR fixes things so that the assertion holds true by improving the handling
of terms during cluster state processing by associating each master state
update task that is used to establish a newly elected leader with the correct
corresponding term from its election. It also explicitly handles the case where
the pre-state that is used as base state has already superseded the current
state. As a nice side-effect, join batching now only happens based on the same
term.
Closes#61437
The iteration over `timeoutClusterStateListeners` starts when the CS applier
thread is still running. This can lead to entries being added to it that never
get their listener resolved on shutdown and thus leak that listener as observed
in a stuck test in #62863.
Since `listener.onClose()` is idempotent we can just call it if we run into a stopped service
on the CS thread to avoid the race with certainty (because the iteration in `doStop` starts after
the stopped state has been set).
Closes#62863
For runtime fields, we will want to do all search-time interaction with
a field definition via a MappedFieldType, rather than a FieldMapper, to
avoid interfering with the logic of document parsing. Currently, fetching
values for runtime scripts and for building top hits responses need to
call a method on FieldMapper. This commit moves this method to
MappedFieldType, incidentally simplifying the current call sites and freeing
us up to implement runtime fields as pure MappedFieldType objects.
This commit adds a tier preference when mounting a searchable
snapshot. This sets a preference that a searchable snapshot is mounted
to a node with the cold role if one exists, then the warm role, then the
hot role, assuming that no other allocation rules are in place. This
means that by default, searchable snapshots are mounted to a node with
the cold role.
Note that depending on how we implement frozen functionality of
searchable snapshots (not pre-cached/not fully-cached), we might need to
adjust this to prefer frozen if mounting a not pre-cached/fully-cached
searchable snapshot versus mounting a pre-cached/fully-cached searchable
snapshot. This is a later concern since neither this nor the frozen role
are implemented currently.
We need to complete the search before closing the iterator, which
internally closes the point in time; otherwise, the search will fail
with a missing context error.
Closes#62451
Backport #63182 to 7.x branch.
The `randomEnrichPolicy(...)` helper method stores the policy and creates the source indices.
If a source index already exists, because it was creates for a random policy created earlier then
skipping the source index fails, but that is ignored and the test continues. However if the policy
has a match field that doesn't exist in the previous random policy then the mapping is never updated
and the put policy api fails with the fact that the match field can't be found.
This pr fixes that by execute a put mapping call in the event that the source index already exists.
Closes#63126
* [ML] optimize delete expired snapshots (#63134)
When deleting expired snapshots, we do an individual delete action per snapshot per job.
We should instead gather the expired snapshots and delete them in a single call.
This commit achieves this and a side-effect is there is less audit log spam on nightly cleanup
closes https://github.com/elastic/elasticsearch/issues/62875
Event type is actually a string value for event.category which can
contain any kind of characters, or start with a digit, which currently
is not supported, so we introduce the possibility to be able to use the
usual syntax of " and """ for strings and raw strings.
Make the grammar a bit cleaner by using the identifier only where it's
actually an identifier in terms of query scemantics.
Fixes: #62933
(cherry picked from commit 306e1d76da3db652db57f11f847705b3995609ff)
Adds normalisation of ngram tokens to reduce disk space.
All punctuation becomes / char and for A-Z0-9 chars turn even codepoints to prior odd e.g. aab becomes aaa
Closes#62817
Currently, CAST will use the first keyword subfield of a text field for
an expression in WHERE clause that gets translated to a painless script
which will lead to an exception thrown:
```
"root_cause": [
{
"type": "script_exception",
"reason": "runtime error",
"script_stack": [
"org.elasticsearch.index.mapper.TextFieldMapper$TextFieldType.fielddataBuilder(TextFieldMapper.java:759)",
"org.elasticsearch.index.fielddata.IndexFieldDataService.getForField(IndexFieldDataService.java:116)",
"org.elasticsearch.index.query.QueryShardContext.lambda$lookup$0(QueryShardContext.java:308)",
"org.elasticsearch.search.lookup.LeafDocLookup$1.run(LeafDocLookup.java:101)",
"org.elasticsearch.search.lookup.LeafDocLookup$1.run(LeafDocLookup.java:98)",
"java.security.AccessController.doPrivileged(Native Method)",
"org.elasticsearch.search.lookup.LeafDocLookup.get(LeafDocLookup.java:98)",
"org.elasticsearch.search.lookup.LeafDocLookup.get(LeafDocLookup.java:41)",
"org.elasticsearch.xpack.sql.expression.function.scalar.whitelist.InternalSqlScriptUtils.docValue(InternalSqlScriptUtils.java:79)",
"InternalSqlScriptUtils.cast(InternalSqlScriptUtils.docValue(doc,params.v0),params.v1)",
" ^---- HERE"
],
"script": "InternalSqlScriptUtils.cast(InternalSqlScriptUtils.docValue(doc,params.v0),params.v1)",
"lang": "painless"
}
],
```
Instead of allowing a painless translation using the first underlying
keyword silently, which can be confusing, we detect such usage and throw\
an error early.
Relates to #60178
(cherry picked from commit 7402e8267ba564e52dc672c25b262824b6048b40)
In #22721, the decision to throttle indexing was inadvertently flipped,
so that we until this commit throttle indexing during recovery but
never throttle user initiated indexing requests. This commit
fixes that to throttle user initiated indexing requests and never
throttle recovery requests.
Closes#61959
Backport #63170 to 7.x branch.
The _index field is a special field that allows using queries against the name of an index or alias.
Data stream names were not included, this pr fixes that by changing SearchIndexNameMatcher
(which used via IndexFieldMapper) to also include data streams.
We recently upgraded the SDK which resulted in the storage exception to be
wrapped now so we must unwrap to check for whether it's a 404 or not.
Closes#63091
Splitting some tests out of this class that has become a catch-all
for random snapshot related tests into either existing suits that fit
better for these tests or one of two new suits to prevent timeouts
in extreme cases (e.g. `WindowsFS` + many nodes + multiple data paths per node).
No other changes to tests were made whatsoever.
Closes#61541
Use triple double quotes enclosing a string literal to interpret it
as unescaped, in order to use `?` for marking query params and avoid
user confusion. `?` also usually implies regex expressions.
Any character inside the `"""` beginning-closing markings is considered
raw and the only thing that is not permitted is the `"""` sequence itself.
If a user wants to use that, needs to resort to the normal `"` string literal
and use proper escaping.
Relates to #61659
(cherry picked from commit d87c2ca2eacab5552bca1e520d33cf71da40bcfd)
* [ML] renames */inference* apis to */trained_models* (#63097)
This commit renames all `inference` CRUD APIs to `trained_models`.
This aligns with internal terminology, documentation, and use-cases.
In the codebase there is the non-written convention that classes that extend `MappedFieldType` are generally called `*FieldType`. With this commit we adopt the same convention for runtime field types which allows us to shorten their names by removing the `Mapped` portion which is implicit.
We would only check for a null value and not for an empty string so
that meant that we were not actually enforcing this mandatory
setting. This commits ensures we check for both and fail
accordingly if necessary, on startup
7.x client can pass media type with a version which will return a 7.x
version of the api in ES 8.
In ES server 7 this media type shoulld be accepted but it serve the same
version of the API (7x)
relates #61427
Introduce : operator for doing case insensitive string comparisons.
Recognizes "*" for wildcard matches in string literals.
Restricted only to string types.
Relates #62941
(cherry picked from commit 201e577e65f26a9b958a6197fe6c7268da39de29)
Backport for #62985 that includes the related changes, but
not the actual plugin for yamlRestCompatTest. The plugin
is not necessary in 7.x, and back porting relevant changes to
help keep 7.x code inline with master.
* Add System Indices check to AutoCreateIndex
By default, Elasticsearch auto-creates indices when a document is
submitted to a non-existent index. There is a setting that allows users
to disable this behavior. However, this setting should not apply to
system indices, so that Elasticsearch modules and plugins are able to
use auto-create behavior whether or not it is exposed to users.
This commit constructs the AutoCreateIndex object with a reference to
the SystemIndices object so that we bypass the check for the user-facing
autocreate setting when it's a system index that is being autocreated.
We also modify the logic in TransportBulkAction to make sure that if a
system index is included in a bulk request, we don't skip the
autocreation step.
Since `fork` is not used, is undocumented in Python EQL and
there is no plan at the moment to implement it in the future,
removing it from the grammar. User will get parsing exceptions
instead of higher level messages about unsupported features
which can lead to wrong expectations.
(cherry picked from commit f6a0f8f01c1b1893bab86629d1de73e9f9dae8dc)
Currently we read in 64KB blocks from the network. When TLS is not
enabled, these bytes are normally passed all the way to the application
layer (some exceptions: compression). For the HTTP layer this means that
these bytes can live throughout the entire lifecycle of an indexing
request.
The problem is that if the reads from the socket are small, this means
that 64KB buffers can be consumed by 1KB or smaller reads. If the socket
buffer or TCP buffer sizes are small, the leads to massive memory
waste. It has been identified as a major source of OOMs on coordinating
nodes as Elasticsearch easily exhausts the heap for these network bytes.
This commit resolves the problem by placing a handler after the TLS
handler to copy these bytes to a more appropriate buffer size as
necessary. This comes after TLS, because TLS is a framing layer which
often resolves this problem for us (the 64KB buffer will be decoded
into a more appropriate buffer size). However, this extra handler will
solve it for the non-TLS pipelines.
This adds the network property from the MaxMind Geo ASN database.
This enables analysis of IP data based on the subnets that MaxMind have
previously identified for ASN networks.
closes#60942
Co-authored-by: Peter Ansell <p_ansell@yahoo.com>
Armin Braun
Costin Leau
Yannick Welsch
Alan Woodward
Jason Tedor
Nhat Nguyen
Lisa Cawley
James Rodewig
Martijn van Groningen
Benjamin Trent
István Zoltán Szabó
Marios Trivyzas
markharwood
Przemysław Witek
nitin2goyal
Joe Gallo
Luca Cavanna
Ioannis Kakavas
David Kyle
Rafi Estrada
Christoph Büscher
Przemyslaw Gomulka
Jake Landis
William Brafford
Igor Motov
Lee Hinman
Tim Brooks