When multiple reduce phases were needed the per term error got lost in subsequent reduces in some situations:
When a previous reduce phase had calculated a non-zero error for a particular bucket we were not accounting for this error in subsequent reduce phases and instead were relying on the overall error for the agg which meant we were implicitly assuming that all shards that made up that aggregation had returned the term. This is plainly not true so we need to make sure the per term error for the aggregation is used when calcualting the error for that term in the new reduced aggregation.
Change Setting#get(Settings, Settings) to fallback only if the setting is present in the secondary.
This is needed to fix setting that relies on other settings.
Replace IT with uts.
The warning header used by Elasticsearch for delivering deprecation
warnings has a specific format (RFC 7234, section 5.5). The format
specifies that the warning header should be of the form
warn-code warn-agent warn-text [warn-date]
Here, the warn-code is a three-digit code which communicates various
meanings. The warn-agent is a string used to identify the source of the
warning (either a host:port combination, or some other identifier). The
warn-text is quoted string which conveys the semantic meaning of the
warning. The warn-date is an optional quoted date that can be in a few
different formats.
This commit corrects the warning header within Elasticsearch to follow
this specification. We use the warn-code 299 which means a
"miscellaneous persistent warning." For the warn-agent, we use the
version of Elasticsearch that produced the warning. The warn-text is
unchanged from what we deliver today, but is wrapped in quotes as
specified (this is important as a problem that exists today is that
multiple warnings can not be split by comma to obtain the individual
warnings as the warnings might themselves contain commas). For the
warn-date, we use the RFC 1123 format.
Relates #23275
We recently added parsing code to parse suggesters responses into java api objects. This was done using a switch based on the type of the returned suggestion. We can now replace the switch with using NamedXContentRegistry, which will also be used for aggs parsing.
Previously when multiple reduces occured for the terms aggregation we would add up the errors for the aggregations but would not take into account the errors that had already been calculated for the previous reduce phases.
This change corrects that by adding the previously created errors to the new error value.
Closes#23286
This test makes little sense when sent from the REST layer, as WrapperQueryBuilder is supposed to be used from the Java api. Also, providing the inner query as base64 string will work only for string formats and break for binary formats like SMILE and CBOR, whcih doesn't play well with randomizing content type in our REST tests
Previously this code was duplicated across the 3 different topdocs variants
we have. It also had no real unittest (where we tested with holes in the results)
which caused a sneaky bug where the comparison used `result.size()` vs `results.size()`
causing several NPEs downstream. This change adds a static method to fill the top docs
that is shared across all variants and adds a unittest that would have caught the issue
very quickly.
Closes#19356Closes#23357
Console.readText may return null in certain cases. This commit fixes a
bug in Terminal.promptYesNo which assumed a non-null return value. It
also adds a test for this, and modifies mock terminal to be able to
handle null input values.
The IndexShardOperationsLock has a mechanism to delay operations if there is currently a block on the lock. These
delayed operations are executed when the block is released and are executed by a different thread. When the different
thread executes the operations, the ThreadContext is that of the thread that was blocking operations. In order to
preserve the ThreadContext, we need to store it and wrap the listener when the operation is delayed.
This change exposes the new Lucene graph based word delimiter token filter in the analysis filters.
Unlike the `word_delimiter` this token filter named `word_delimiter_graph` correctly handles multi terms expansion at query time.
Closes#23104
This commit adds a boundary_scanner property to the search highlight
request so the user can specify different boundary scanners:
* `chars` (default, current behavior)
* `word` Use a WordBreakIterator
* `sentence` Use a SentenceBreakIterator
This commit also adds "boundary_scanner_locale" to define which locale
should be used when scanning the text.
There are two ways to determine the latest index-N blob that contains
the truth of the contents of the repository: (1) list all index-N blobs
and figure out what the latest value of N is, and (2) read the
index.latest blob, which contains the latest value of N explicitely.
Note that the index.latest blob is not written atomically and can be
re-written, as opposed to the index-N blobs which are never re-written
(to create an updated index blob, index-{N+1} is written).
Previously, the latest index-N was determined by first trying to read
the index.latest blob and if that blob was missing (it was deleted
before being re-written and in between deleting it and re-writing it,
the system crashed), then all index-N blobs were listed to pick the
highest N value.
For non-read-only repositories, this could produce race conditions with
the file system. In particular, it is possible that the index.latest
blob is being read in order to serve a read request (e.g. get snapshots)
and while doing so, an attempt is made to delete the index.latest blob
and re-write it in order to finalize a snapshot operation. On some file
systems (e.g. Windows), it is forbidden to delete a file while it is
open for reading by another process/thread.
This commit changes the priority so that figuring out the latest index-N
blob is first done by listing all index-N blobs and determining the
latest N value. If that values because the repository does not
support listing blobs (e.g. the URL repository), then the index.latest
blob is read. This is safe because in read-only repositories that do
not support listing blobs, the index.latest blob is never deleted and
then re-written, so the aforementioned issue does not arise.
In oder to use lucene's utilities to merge top docs the results
need to be passed in a dense array where the index corresponds to the shard index in
the result list. Yet, we were sorting results before merging them just to order them
in the incoming order again for the above mentioned reason. This change removes the
obsolet sort and prevents unnecessary materializing of results.
In update scripts, `ctx._now` uses the same milliseconds value used by the
rest of the system to calculate deltas. However, that time is not
actually epoch milliseconds, as it is derived from `System.nanoTime()`.
This change reworks the estimated time thread in ThreadPool which this
time is based on to make available both the relative time, as well as
absolute milliseconds (epoch) which may be used with calendar system. It
also renames the EstimatedTimeThread to a more apt CachedTimeThread.
closes#23169
From #23093, we fixed the issue where a filesystem can be so large that it
overflows and returns a negative number. However, there is another issue when
adding a path as a sub-path to another `FsInfo.Path` object, when adding the
totals the values can still overflow.
This adds the same safety to return `Long.MAX_VALUE` instead of the negative
number, as well as a test exercising the logic.
When a node wants to join a cluster, it sends a join request to the master. The master then sends a join validation request to the node. This checks that the node can deserialize the current cluster state that exists on the master and that it can thus handle all the indices that are currently in the cluster (see #21830).
The current code can trip an assertion as it does not take the cluster state as is but sets itself as the local node on the cluster state. This can result in an inconsistent DiscoveryNodes object as the local node is not yet part of the cluster state and a node with same id but different address can still exist in the cluster state. Also another node with the same address but different id can exist in the cluster state if multiple nodes are run on the same machine and ports have been swapped after node crashes/restarts.
Also expand testing on the different ways to provide index settings and remove dead code around ability to provide settings as query string parameters
Closes#23242
Elasticsearch accepts multiple content-type formats, hence scripts can be stored/provided in json, yaml, cbor or smile. Yet the format that should be used internally is json. This is a problem mainly around search templates, as they only support json out of the four content-types, so instead of maintaining the content-type of the request we should rather convert the scripts/templates to json.
Binary formats were not previously supported. If you stored a template in yaml format, you'd get back an error "No encoder found for MIME type [application/yaml]" when trying to execute it. With this commit the request content-type is independent from the template, which always gets converted to json internally. That is transparent to users and doesn't affect the content type of the response obtained when executing the template.
Both PRs below have been backported to 5.4 such that we can enable
BWC tests of this feature as well as remove version dependend serialization
for search request / responses.
Relates to #23288
Relates to #23253
* Make document write requests immutable
Previously, write requests were mutated at the
transport level to update request version, version type
and sequence no before replication.
Now that all write requests go through the shard bulk
transport action, we can use the primary response stored
in item level bulk requests to pass the updated version,
seqence no. to replicas.
* incorporate feedback
* minor cleanup
* Add bwc test to ensure correct index version propagates to replica
* Fix bwc for propagating write operation versions
* Add assertion on replica request version type
* fix tests using internal version type for replica op
* Fix assertions to assert version type in replica and recovery
* add bwc tests for version checks in concurrent indexing
* incorporate feedback
The assertion that if there are buffered aggs at least one incremental
reduce phase should have happened doens't hold if there are shard failure.
This commit removes this assertion.
Relates to #23288
In #23253 we added an the ability to incrementally reduce search results.
This change exposes the parameter to control the batch since and therefore
the memory consumption of a large search request.
InternalTopHits uses "==" to compare hit scores and fails when score is NaN.
This commit changes the comparaison to always use Double.compare.
Relates #23253
We can and should randomly reduce down to a single result before
we passing the aggs to the final reduce. This commit changes the logic
to do that and ensures we don't trip the assertions the previous imple tripped.
Relates to #23253
Christoph Büscher
Colin Goodheart-Smithe
Jim Ferenczi
Jason Tedor
Martijn van Groningen
Luca Cavanna
javanna
Simon Willnauer
Boaz Leskes
Ryan Ernst
Ali Beyad
Jay Modi
Shai Erera
sabi0
Lee Hinman
Yannick Welsch
mms-programming
Areek Zillur
Nik Everett
Tanguy Leroux