This pull request makes the `RestGetSourceAction` return a `ResourceNotFoundException` with a proper JSON response when source or document itself is missing (see issue #33384).
Here is below a sample JSON output:
```
{
"error": {
"root_cause": [
{
"type": "resource_not_found_exception",
"reason": "Source not found [index1]/[_doc]/[1]"
}
],
"type": "resource_not_found_exception",
"reason": "Source not found [index1]/[_doc]/[1]"
},
"status": 404
}
```
This removes the option to run a cluster without enforcing the
cluster-wide shard limit, making strict enforcement the default and only
behavior. The limit can still be adjusted as desired using the cluster
settings API.
This commit adds the support for exists query in the sorted execution mode
of the `composite` aggregation. We'll execute the aggregation from the sorted
points and use early termination if the main query is an `exists` query over the
first source of the `composite` aggregation.
Today we don't respect the indices options when they are passed
as request parameters to the `_msearch` endpoint. This is unintuitive
and doesn't cause any errors. This changes uses the top-level indices
options as the defaults for each sub search-request.
Closes#35851
More like this query allows to provide identifiers of documents to be retrieved as like/unlike items.
It can happen that at retrieval time an error is thrown, for instance caused by missing routing value when `_routing` is set required in the mapping.
Instead of ignoring such error and returning no documents for the query, the error should be re-thrown and returned to users. As part of this
change also mget and mtermvectors are unified in the way they throw such exception like it happens in other places, so that a `RoutingMissingException` is raised.
Closes#29678
This commit simplifies the throttling logic in InitialSearchPhase and removes some asserts from it. Also, a few formatting changes are applied to its code and surrounding classes.
The `wait_for_metadata_version` parameter will instruct the cluster state
api to only return a cluster state until the metadata's version is equal or
greater than the version specified in `wait_for_metadata_version`. If
the specified `wait_for_timeout` has expired then a timed out response
is returned. (a response with no cluster state and wait for timed out flag set to true)
In the case metadata's version is equal or higher than `wait_for_metadata_version`
then the api will immediately return.
This feature is useful to avoid external components from constantly
polling the cluster state to whether somethings have changed in the
cluster state's metadata.
Code that operates on-top of the engine requires all readers returned to be
unwrapped into ElasticsearchDirectoryReader. The special reader
the FrozenEngine uses wasn't wrapped.
Today when rolling a transog generation we copy the checkpoint from
`translog.ckp` to `translog-nnnn.ckp` using a simple `Files.copy()` followed by
appropriate `fsync()` calls. The copy operation is not atomic, so if we crash
at the wrong moment we can leave an incomplete checkpoint file on disk. In
practice the checkpoint is so small that it's either empty or fully written.
However, we do not correctly handle the case where it's empty when the node
restarts.
In contrast, in `recoverFromFiles()` we _do_ copy the checkpoint atomically.
This commit extracts the atomic copy operation from `recoverFromFiles()` and
re-uses it in `rollGeneration()`.
This pull request exposes two new methods in the IndexShard and
TransportReplicationAction classes in order to allow transport replication
actions to acquire all index shard operation permits for their execution.
It first adds the acquireAllPrimaryOperationPermits() and the
acquireAllReplicaOperationsPermits() methods to the IndexShard class
which allow to acquire all operations permits on a shard while exposing
a Releasable. It also refactors the TransportReplicationAction class to
expose two protected methods (acquirePrimaryOperationPermit() and
acquireReplicaOperationPermit()) that can be overridden when a transport
replication action requires the acquisition of all permits on primary and/or
replica shard during execution.
Finally, it adds a TransportReplicationAllPermitsAcquisitionTests which
illustrates how a transport replication action can grab all permits before
adding a cluster block in the cluster state, making subsequent operations
that requires a single permit to fail).
Related to elastic #33888
* Forbid negative scores in functon_score query
- Throw an exception when scores are negative in field_value_factor
function
- Throw an exception when scores are negative in script_score
function
Relates to #33309
After #35332 has been merged, we noticed some test failures like #35597
in which one or more replica shards failed to be promoted as primaries
because the primary replica re-synchronization never succeed.
After some digging it appeared that the execution of the resync action was
blocked because of the presence of a global cluster block in the cluster state
(in this case, the "no master" block), making the resync action to fail when
executed on the primary.
Until #35332 such failures never happened because the
TransportResyncReplicationAction is skipping the reroute phase, the only
place where blocks were checked. Now with #35332 blocks are checked
during reroute and also during the execution of the transport replication
action on the primary. After some internal discussion, we decided that the TransportResyncReplicationAction should never be blocked. This action is
part of the replica to primary promotion and makes sure that replicas are in
sync and should not be blocked when the cluster state has no master or
when the index is read only.
This commit changes the TransportResyncReplicationAction to make obvious
that it does not honor blocks. It also adds a simple test that fails if the resync
action is blocked during the primary action execution.
Closes#35597
Adds an XContent sub parser class that can to wrap another
XContent parser at the beginning of an object and allow skiping
all children in case of the parsing failure. It also uses this
subparser to ignore the rest of the GeoJson shape if the
parsing fails and we need to ignore the geoshape due to the
ignore_malformed flag.
Supersedes #34498Closes#34047
* [GEO] Add support to ShapeBuilders for building Lucene geometry
This commit adds support for building lucene geometry from the ShapeBuilders.
This is needed for integrating LatLonShape as the primary indexing approach
for geo_shape field types. All unit and integration tests are updated to
add randomization for testing both jts/s4j shapes and lucene shapes.
Queries across multiple fields generate MatchNoDocsQuerys for fields that are
unmapped. In certain situation this can lead to erroneous behaviour,
for example when an umapped field is used in a query_string query across
several fields. If some of the tokens in the query string get eliminated by an
analyzer on the mapped fields, the same token will currently generate
MatchNoDocsQuerys combined into a disjunction, which in turn
leads to no matches in the overall query. Instead we should simply not add
MatchNoDocsQuerys to those disjunctions.
Closes#34708
This parameter in the `query_string` query was deprecated in 6.0 and ignored
since then. Its API methods and remaining uses can be removed in the upcoming
major version.
Relates to #35734
This commit adds a rest endpoint for freezing and unfreezing an index.
Among other cleanups mainly fixing an issue accessing package private APIs
from a plugin that got caught by integration tests this change also adds
documentation for frozen indices.
Note: frozen indices are marked as `beta` and available as a basic feature.
Relates to #34352
The list of official plugins accidentally included `qa` projects like,
well, `qa` and `amazon-ec2`. This changes the mechanism that we use to
build the list and adds a test to catch this.
Closes#35623
Randomize test assertion and test set size instead of asserting on an
exhaustive list of dates with fixed test set size. Also refactor common
objects used to avoid recreating them, avoid date to string conversion
and reduce duplicate test code
Closes#33181
Removed extending of AbstractComponent and changed logger usage to
explicit declaration. Abstract classes still have logger
declaration using this.getClass() in order to show implementation class
name in its logs.
See #34488
* Deprecate types in count requests.
* Move RestCountAction to the 'search' package.
* Deprecate types in multi search requests.
* Add tests for types deprecation in the _search endpoint.
This change fixes#35351. Users were no longer able to return types of numbers other than doubles for bucket aggregation scripts. This change reverts to the previous behavior of being able to return any type of number and having it converted to a double outside of the script.
This inserts newlines in order to reduce line lengths in the
o.e.action.admin.cluster package to 140 characters or less. This
also remves the checkstyle suppressions for affected files.
Relates #34884, #34923
The javadocs of the CharSequence interface state that not all of its
implementations define the general contracts of the Object#equals and
Object#hashCode methods, therefore it is dangerous to use different CharSequence
instances as elements in a set or as keys in a map. While we probably mostly use
Strings in sets, in some places this is not enforced. To prevent this from
accidentally happening, this change replaces all occurances of Set<CharSequence>
which are currently mostly used in the completion suggester code with the more
concrete usage of Set<String>.
This changes the test to not use a `CountDownlatch`, instead adding an assertion
for the final logging message and waiting until the `MockAppender` has seen it
before proceeding.
Resolves#23739
The `composite` aggregation can optimize its execution when the query
is a `match_all` or a `range` over the field that is used in the first source
of the aggregation. However we only check for instances of `PointRangeQuery` whereas
the range query builder creates an `IndexOrDocValuesQuery`. This means that
today the optimization does not apply to `range` query even if the code could handle it.
This change fixes this issue by extracting the index query inside `IndexOrDocValuesQuery`.
In #23175 we renamed `ThreadPool$EstimatedTimeThread` to
`ThreadPool$CachedTimeThread` but did not update the corresponding entry in
`HotThreads#isIdleThread`. This commit addresses this.
This pull request replaces some blocks of code that must be run once
and that are currently based on AtomicBoolean by the convient RunOnce
class added in #35489.
Today, the TransportReplicationAction checks the global level blocks and
the index level blocks before routing the operation to the primary, in the
ReroutePhase, and it happens at the very beginning of the transport
replication action execution. For the upcoming rework of the Close Index
API and in order to deal with primary relocation, we'll need to also check
for blocks before executing the operation on the primary (while holding a
permit) but before routing to the new primary.
This pull request change the AsyncPrimaryAction so that it checks for
replication action's blocks before executing the operation locally or before
routing the primary action to the newly primary shard. The check is done
while holding a PrimaryShardReference.
Related to #33888
The way ScoreAccessor implements `compareTo()` is problematic because it doesn't
completely follow the Comparable contract, specificaly symmetry (if x is a
ScoreAccessor and y any Number then x.comparTo(y) works, but y.compareTo(x)
generally does not even compile). Fortunately we don't seem to use the fact that
ScoreAccessor is a Comparable anywhere, so we can simply remove it.
This change adds a special caching reader that caches all relevant
values for a range query to rewrite correctly in a can_match phase
without actually opening the underlying directory reader. This
allows frozen indices to be filtered with can_match and in-turn
searched with wildcards in a efficient way since it allows us to
exclude shards that won't match based on their date-ranges without
opening their directory readers.
Relates to #34352
Depends on #34357
The ParsedReverseNested implementation should implement the ReverseNested
interface and not the Nested interface. Although this is an empty marker
interface it is confusing and can lead to casting errors. Also adding a test to
check that both ParsedNested and ParsedReverseNested implement the correct
interface.
Closes#35449
Some very old ancient versions of Linux do not have /etc/os-release. For
example, old Red Hat-like OS. This commit adds a fallback for handling
pretty name for these OS.
This is a follow up to #35357. That commit failed to register the new
cluster.remote.cluster_name.transport.compress setting with
`ClusterSettings`. This commit fixes that.
Some OS (e.g., Oracle Linux Server 6.9) have a trailing space at the end
of the PRETTY_NAME line in /etc/os-release. This commit addresses this
by accounting for this trailing space when extracting the pretty name.
The MockTcpTransport is not friendly in regards to memory usage. It must
allocate multiple byte arrays for every message. This improves the
memory situation by failing fast if the message is improperly formatted.
Additionally, it uses reusable big arrays for at least half of the
allocated byte arrays.
This change adds a logger for the query and fetch phases that prints all requests
before their execution at the trace level. This will help debugging cases where an issue
occurs during the execution since only completed queries are logged by the slow logs.
This is related to #34483. It introduces a namespaced setting for
compression that allows users to configure compression on a per remote
cluster basis. The transport.tcp.compress remains as a fallback
setting. If transport.tcp.compress is set to true, then all requests
and responses are compressed. If it is set to false, only requests to
clusters based on the cluster.remote.cluster_name.transport.compress
setting are compressed. However, after this change regardless of any
local settings, responses will be compressed if the request that is
received was compressed.
Today our OS information returned in node stats only returns a
high-level name of the OS (e.g., "Linux"). Yet, for some uses this is
too high-level and knowing at a finer level of granularity the
underlying OS can be useful. This commit extracts the pretty name on
Linux from /etc/os-release. This pretty name usually includes the Linux
vendor and the Linux vendor version number (e.g., Fedora 28).
Currently we introduced a hard limit of 1024 to the number of fields a query can
be expanded to in #26541. Instead of using a hard limit, we should make this
configurable. This change removes the hard limit check and uses the existing
`max_clause_count` setting instead.
Closes#34778
Currently when aggregating on an unmapped date field (e.g. using a
date_histogram) we don't preserve the aggregations `format` setting but instead
use the default format. This can lead to loosing the aggregations `format` when
aggregating over several indices where some of them contain unmapped date fields
and are encountered first in the reduce phase.
Related to #31760
Today the `composite` aggregation throws an error if a source targets an
unmapped field and `missing_bucket` is set to false. Documents without a
value for a source cannot produce any bucket if `missing_bucket` is not
activated so the error is a shortcut to say that the response will be empty.
However this is not consistent with the `terms` aggregation which accepts
unmapped field by default even if the response is also guaranteed to be empty.
This commit removes this restriction, if a source contains an unmapped field
we now return an empty response (no buckets).
Closes#35317
The current implementation of asyncBlockOperations() can be used to
execute some code once all indexing operations permits have been acquired,
then releases all permits immediately after the code execution. This
immediate release is not suitable for treatments that need to keep all
permits over multiple execution steps.
This commit adds a new asyncBlockOperations() that exposes a Releasable,
making it possible to acquire all permits and only release them all
when needed by closing the Releasable. The existing blockOperations()
method has been modified to delegate permit acquisition/releasing to this new
method.
Relates to #33888
This commit uses the index settings version so that a follower can
replicate index settings changes as needed from the leader.
Co-authored-by: Martijn van Groningen <martijn.v.groningen@gmail.com>
The lookup vars under params (namely _fields and _source) were
inadvertently removed when scoring scripts were converted to using
script contexts. This commit adds them back, along with deprecation
warnings for those that should not be used.
A CCR test failure shows that the approach in #34474 is flawed.
Restoring the LocalCheckpointTracker from an index commit can cause both
FollowingEngine and InternalEngine to incorrectly ignore some deletes.
Here is a small scenario illustrating the problem:
1. Delete doc with seq=1 => engine will add a delete tombstone to Lucene
2. Flush a commit consisting of only the delete tombstone
3. Index doc with seq=0 => engine will add that doc to Lucene but soft-deleted
4. Restart an engine with the commit (step 2); the engine will fill its
LocalCheckpointTracker with the delete tombstone in the commit
5. Replay the local translog in reverse order: index#0 then delete#1
6. When process index#0, an engine will add it into Lucene as a live doc
and advance the local checkpoint to 1 (seq#1 was restored from the
commit - step 4).
7. When process delete#1, an engine will skip it because seq_no=1 is
less than or equal to the local checkpoint.
We should have zero document after recovering from translog, but here we
have one.
Since all operations after the local checkpoint of the safe commit are
retained, we should find them if the look-up considers also soft-deleted
documents. This PR fills the disparity between the version map and the
local checkpoint tracker by taking soft-deleted documents into account
while resolving strategy for engine operations.
Relates #34474
Relates #33656
Today when a percolator query contains a date range then the query
analyzer extracts that range, so that at search time the `percolate` query
can exclude percolator queries efficiently that are never going to match.
The problem is that if 'now' is used it is evaluated at index time.
So the idea is to rewrite date ranges with 'now' to a match all query,
so that the query analyzer can't extract it and the `percolate` query
is then able to evaluate 'now' at query time.
This change adds a `frozen` engine that allows lazily open a directory reader
on a read-only shard. The engine wraps general purpose searchers in a LazyDirectoryReader
that also allows to release and reset the underlying index readers after any and before
secondary search phases.
Relates to #34352
Today we only apply `ingore_throttled` to expansions from wildcards,
date math expressions and aliases. Yet, this is tricky since we might
have resolved certain expressions in pre-filter steps like security.
It's more consistent to apply this logic to all expressions including
concrete indices.
Relates to #34354
With this change, `Version` no longer carries information about the qualifier,
we still need a way to show the "display version" that does have both
qualifier and snapshot. This is now stored by the build and red from `META-INF`.
This is related to #29023. Additionally at other points we have
discussed a preference for removing the need to unnecessarily block
threads for opening new node connections. This commit lays the groudwork
for this by opening connections asynchronously at the transport level.
We still block, however, this work will make it possible to eventually
remove all blocking on new connections out of the TransportService
and Transport.
We've decided that the bulk, delete, get, index, update, and search APIs should not
contain this request parameter, and we will instead accept both typed and typeless calls.
Christophe Bismuth
Martijn van Groningen
Gordon Brown
Igor Motov
Jim Ferenczi
Simon Willnauer
Tanguy Leroux
Luca Cavanna
iverase
Yannick Welsch
Adrien Grand
Christoph Büscher
David Turner
Dimitris Athanasiou
Albert Zaharovits
Mayya Sharipova
Armin Braun
Nick Knize
Ryan Ernst
Vladimir Dolzhenko
Benjamin Trent
Nik Everett
Ekal Golas
Lee Hinman
Arthur Gavlyukovskiy
Julie Tibshirani
Jack Conradson
Jernej Klancic
Tom Callahan
Lee Hinman
Hendrik Muhs
Vladimir Dolzhenko
Jason Tedor
Tim Brooks
Daniel Mitterdorfer
Alpar Torok
Nhat Nguyen