* Introduce ParentJoinFieldMapper, a field mapper that creates parent/child relation within documents of the same index
This change adds a new field mapper named ParentJoinFieldMapper. This mapper is a replacement for the ParentFieldMapper but instead of using the types in the mapping
it uses an internal field to materialize parent/child relation within a single index.
This change also adds a fetch sub phase that automatically retrieves the join name (parent or child name) and the parent id for child documents in the response hit fields.
The compatibility with `has_parent`, `has_child` queries and `children` agg will be added in a follow up.
Relates #20257
This is a follow-up to #23941. Currently there are a number of
complexities related to compression. The raw DeflaterOutputStream must
be closed prior to sending bytes to ensure that EOS bytes are written.
But the underlying ReleasableBytesStreamOutput cannot be closed until
the bytes are sent to ensure that the bytes are not reused.
Right now we have three different stream references hanging around in
TCPTransport to handle this complexity. This commit introduces
CompressibleBytesOutputStream to be one stream implemenation that will
behave properly with or without compression enabled.
This metric is not used in the ES codebase at all. It's also not as likely to be
used since it relies on a periodic "tick", which we don't currently use.
The took time computed for search requests does not take in account the expand search phase.
This change delays the computation to after the expand phase finishes.
Relates #24900
This makes profiling classes acquire a timer up-front that can be then reused
across all calls, in order to save bound checks for methods that are called in
tight loops.
ScriptContexts currently understand a FactoryType that can produce
instances of the script InstanceType. However, for search scripts, this
does not work as we have the concept of LeafSearchScript that is created
per lucene segment. This commit effectively renames the existing
SearchScript class into SearchScript.LeafFactory, which is a new,
optional, class that can be defined within a ScriptContext.
LeafSearchScript is effectively renamed back into SearchScript. This
change allows the model of stateless factory -> stateful factory ->
script instance to continue, but in a generic way that any script
context may take advantage of.
relates #20426
In previous work, we refactored the delay mechanism in index shard
operation permits to allow for async delaying of acquisition. This
refactoring made explicit when permit acquisition is disabled whereas
previously we were relying on an implicit condition, namely that all
permits were acquired by the thread trying to delay acquisition. When
using the implicit mechanism, we tried to acquire a permit and if this
failed, we returned a null releasable as an indication that our
operation should be queued. Yet, now we know when we are delayed and we
should not even try to acquire a permit. If we try to acquire a permit
and one is not available, we know that we are not delayed, and so
acquisition should be successful. If it is not successful, something is
deeply wrong. This commit takes advantage of this refactoring to
simplify the internal implementation.
Relates #24971
When a primary is promoted, it could have gaps in its history due to
concurrency and in-flight operations when it was serving as a
replica. This commit fills the gaps in the history of the promoted shard
after all operations from the previous term have drained, and future
operations are blocked. This commit does not handle replicating the
no-ops that fill the gaps to any remaining replicas, that is the
responsibility of the primary/replica sync that we are laying the ground
work for.
Relates #24945
`terms` aggregations at the root level use the `global_ordinals` execution hint by default.
When all sub-aggregators can be run in `breadth_first` mode the collected buckets for these sub-aggs are dense (remapped after the initial pruning).
But if a sub-aggregator is not deferrable and needs to collect all buckets before pruning we don't remap global ords and the aggregator needs to deal with sparse buckets.
Most (if not all) aggregators expect dense buckets and uses this information to allocate memories.
This change forces the remap of the global ordinals but only when there is at least one sub-aggregator that cannot be deferred.
Relates #24788
DateProcessor's DateFormat UNIX format parser resulted in
a floating point rounding error when parsing certain stringed
epoch times. Now Double.parseDouble is used, preserving the
intented input.
This commit introduces a clean transition from the old primary term to
the new primary term when a replica is promoted primary. To accomplish
this, we delay all operations before incrementing the primary term. The
delay is guaranteed to be in place before we increment the term, and
then all operations that are delayed are executed after the delay is
removed which asynchronously happens on another thread. This thread does
not progress until in-flight operations that were executing are
completed, and after these operations drain, the delayed operations
re-acquire permits and are executed.
Relates #24925
Within two lines of each other appears "fallthrough" and "fall through",
both typed by the same person who should have been paying better
attention and only one of these is correct and the inconsistency is
bothersome. This commit fixes the errant one.
Drops `TokenizerFactory#name`, replacing it with
`CustomAnalyzer#getTokenizerName` which is much better targeted at
its single use case inside the analysis API.
Drops a test that I would have had to refactor which is duplicated by
`AnalysisModuleTests`.
To keep this change from blowing up in size I've left two mostly
mechanical changes to be done in followups:
1. `TokenizerFactory` can now be entirely dropped and replaced with
`Supplier<Tokenizer>`.
2. `AbstractTokenizerFactory`'s ctor still takes a `String` parameter
where the name once was.
If the bucket already exists, due to non-overlapping series or missing data, the
MovAvg creates a merged bucket with the existing aggs + the new prediction. This
fixes a small bug where the doc_count was not being set correctly.
Relates to #24327
Today if the primary throws an exception while handling the replica
response (e.g., because it is already closed while updating the local
checkpoint for the replica), or because of a bug that causes an
exception to be thrown in the replica operation listener, this exception
is caught by the underlying transport handler plumbing and is translated
into a response handler failure transport exception that is passed to
the onFailure method of the replica operation listener. This causes the
primary to turn around and fail the replica which is a disastrous and
incorrect outcome as there's nothing wrong with the replica, it is the
primary that is broken and deserves a paddlin'. This commit handles this
situation by failing the primary.
Relates #24926
This commit adds a `doc_count` field to the response body of Matrix
Stats aggregation. It exposes the number of documents involved in
the computation of statistics, a value that can already be retrieved using
the method MatrixStats.getDocCount() in the Java API.
This commit adds a second refresh to the concurrent relocation
test. This is necessary as the first refresh might have brought back a
local checkpoint for a shard that a newly relocated primary became aware
of but did not yet receive a local checkpoint for that shard. When that
local checkpoint arrives on the new primary, the global checkpoint could
advance again and so we need a second replication action to push that
global checkpoint back out to the replica. This is indeed a hack, and it
will eventually be removed.
Closes#24599
We default to 0 replicas in the rolling restart scenario already to ensure
we test against worst case. Yet, this adds a dummy index to ensure we also
recover and index with replicas just fine.
Removes the `distribution:bwc` project in favor of
`distribution:bwc-release-snapshot` and
`distribution:bwc-stable-snapshot`.
`distribution:bwc-release-snapshot` builds a snapshot of the
latest release branch (5.4 now) if needed for backwards
compatibility. `distribution:bwc-stable-snapshot` builds a
snapshot of the latest stable branch (5.x now) if needed for
backwards compatibility.
The `IndexDeletionPolicy` is currently instantiated by `IndexShard` and is then passed through to the engine as a parameter. That's a shame as it is really just an implementation detail and the engine already has a method to acquire a commit.
This is preparing for a follow up PR that will we connect the index deletion policy with a new translog deletion policy.
Relates to #10708
The order in which double values are added in Java can give different results,
so in testing the sum and sumOfSquares we need to allow some delta for testing
equality. The difference can be larger for large sum values, so we should
account for this by making the delta in the assertion depend on the values
magnitude.
Closes#24931
ClearScrollResponse can print out its content into an XContentBuilder as it implements ToXContentObject. This PR add a fromXContent method to it so that we are able to recreate the response object when parsing the response back. This will be used in the high level REST client.
ClearScrollRequest can be created from a request body, but it doesn't support the opposite, meaning printing out its content to an XContentBuilder. This is useful to the high level REST client and allows for better testing of what we parse.
Moved parsing method from RestClearScrollAction to ClearScrollRequest so that fromXContent and toXContent sit close to each other. Added unit tests to verify that body parameters override query_string parameters when both present (there is already a yaml test for this but unit test is even better)
SearchScrollRequest can be created from a request body, but it doesn't support the opposite, meaning printing out its content to an XContentBuilder. This is useful to the high level REST client and allows for better testing of what we parse.
Moved parsing method from RestSearchScrollAction to SearchScrollRequest so that fromXContent and toXContent sit close to each other. Added unit tests to verify that body parameters override query_string parameters when both present (there is already a yaml test for this but unit test is even better)
When proportioning the shared RAM bytes across the shards of the query
cache, there's a computation that shares these bytes according to the
relative size of the shard cache to the total size of all the shard
caches. This computation had a bug where integer division was performed
instead which leads to this computation often being zero. This commit
fixes this bug by casting the numerator to a double before doing the
division so that double division is performed.
Relates #24856
The Lucene version expectation in the verify Lucene version test is
backwards, mixing up the expected and actual values. This commit
reorders them to fix this issue.
The Lucene version constants for 5.4.1 and 5.5.0 are wrong, they are
listed as 6.5.0 instead of 6.5.1. This commit fixes these issues, and
adds a test to ensure that this does not happen again.
Relates #24923
This commit fixes a double decrement bug on the current query
counter. The double decrement arises in a situation when the fetch phase
is inlined for a query that is only touching one shard. After the query
phase succeeds we decrement the current query counter. If the fetch
phase ultimately fails, an exception is thrown and we decrement the
current query counter again in the catch block. We also add assertions
that all current stats counters remain non-negative at all
times.
Relates #24922
Removes the need for the `_UNRELEASED` suffix on versions by detecting if a version should be unreleased or not based on the versions around it. This should make it simpler to automate the task of adding a new version label.
Sergey Novikov
Nik Everett
Jim Ferenczi
Tim Brooks
Lee Hinman
Masaru Hasegawa
Martijn van Groningen
Tanguy Leroux
Adrien Grand
Ryan Ernst
Jack Conradson
Jason Tedor
Tal Levy
Lee Hinman
Zachary Tong
David Cho-Lerat
Boaz Leskes
Simon Willnauer
Christoph Büscher
propulkit
Luca Cavanna
mashudong