We don't *want* to use negative numbers with `writeVLong`
so throw an exception when we try. On the other
hand unforeseen bugs might cause us to write negative numbers (some versions of Elasticsearch don't have the exception, only an assertion)
so this fixes `readVLong` so that instead of reading a wrong
value and corrupting the stream it reads the negative value.
Optimistically check for `tag` of an unknown processor for better tracking of which
processor declaration is to blame in an invalid configuration.
Closes#21429.
* Remove a checked exception, replacing it with `ParsingException`.
* Remove all Parser classes for the yaml sections, replacing them with static methods.
* Remove `ClientYamlTestFragmentParser`. Isn't used any more.
* Remove `ClientYamlTestSuiteParseContext`, replacing it with some static utility methods.
I did not rewrite the parsers using `ObjectParser` because I don't think it is worth it right now.
Currently we only apply date detection on strings that contain either `:`, `-`
or `/`. This commit inverses the heuristic in order to only apply date detection
on strings that are not parseable as a number, so that more date formats can be
used as dynamic dates formats.
Closes#1694
Today we only expose `value_type` in scriptable aggregations, however it is
also useful with unmapped fields. I suspect we never noticed because
`value_type` was not documented (fixed) and most aggregations are scriptable.
Closes#20163
`ShardCoreKeyMap.add` is called on each segment for all search requests, which
means it might become a bottleneck under a cocurrent load of cheap search
requests since this method acquires a mutex. This change proposes to use a
`ConcurrentHashMap` which allows to only take the mutex in the case that the
`LeafReader` has never been seen before.
This adds test classes that can be used to test the wire serialisation and (optionally) the XContent serialisation of objects that implement Streamable/Writeable and ToXContent.
These test classes will enable classes sich as InternalAggregation (or at least its implementations) to be tested in a consistent way when is comes to testing serialisation.
As the translog evolves towards a full operations log as part of the
sequence numbers push, there is a need for the translog to be able to
represent operations for which a sequence number was assigned, but the
operation did not mutate the index. Examples of how this can arise are
operations that fail after the sequence number is assigned, and gaps in
this history that arise when an operation is assigned a sequence number
but the operation never completed (e.g., a node crash). It is important
that these operations appear in the history so that they can be
replicated and replayed during recovery as otherwise the history will be
incomplete and local checkpoints will not be able to advance. This
commit introduces a no-op to the translog to set the stage for these
efforts.
Relates #22291
Today if an older version of a plugin exists, we fail to notify the user
with a helpful error message. This happens because during plugin
verification, we attempt to read the plugin descriptors for all existing
plugins. When an older version of a plugin is sitting on disk, we will
attempt to read this old plugin descriptor and fail due to a version
mismatch. This leads to an unhelpful error message. Instead, we should
check for existence of the plugin as part of the verification phase, but
before attempting to read plugin descriptors for existing plugins. This
enables us to provide a helpful error message to the user.
Relates #22305
* Repeated language analyzers
The `catalan` analyzer was repeated on the supported list :)
* Reordered the languages to have alphabetic order
* Added space for format
* Reordered the languages and removed repeated
The deprecation warning gives now the same message as 5.x. The deprecation warning was previously removed, but given that we are still lenient with old indices we should still output the warning.
Our `float`/`double` fields generally assume that `-0` compares less than `+0`,
except when bounds are exclusive: an exclusive lower bound on `-0` excludes
`+0` and an exclusive upper bound on `+0` excludes `-0`.
Closes#22167
Today we ship with default jvm.options for server Elasticsearch that
prevents Netty from using some unsafe optimizations. Yet, the settings
do nothing for the transport client since it is embedded in other
applications that will not read and use those settings. This commit adds
these settings for the transport client, and is done so in a way that
still enables users to go unsafe if they want to go unsafe (they
shouldn't, but the option is there).
Relates #22284
The way aggregations on scripts work is by hiding scripts behind the same API
that we use for regular fields. However, there is no native support for boolean
fields, those need to be exposed as integers, with `0` standing for `false` and
`1` for true.
Relates #20941
The `UnicastZenPing` shows it's age and is the result of many small changes. The current state of affairs is confusing and is hard to reason about. This PR cleans it up (while following the same original intentions). Highlights of the changes are:
1) Clear 3 round flow - no interleaving of scheduling.
2) The previous implementation did a best effort attempt to wait for ongoing pings to be sent and completed. The pings were guaranteed to complete because each used the total ping duration as a timeout. This did make it hard to reason about the total ping duration and the flow of the code. All of this is removed now and ping should just complete within the given duration or not be counted (note that it was very handy for testing, but I move the needed sync logic to the test).
3) Because of (2) the pinging scheduling changed a bit, to give a chance for the last round to complete. We now ping at the beginning, 1/3 and 2/3 of the duration.
4) To offset for (3) a bit, incoming ping requests are now added to on going ping collections.
5) UnicastZenPing never establishes full blown connections (but does reuse them if there). Relates to #22120
6) Discovery host providers are only used once per pinging round. Closes#21739
7) Usage of the ability to open a connection without connecting to a node ( #22194 ) and shorter connection timeouts helps with connections piling up. Closes#19370
8) Beefed up testing and sped them up.
9) removed light profile from production code
If we conditionally do random things, e.g. initialize a node only after the first test, we have to make sure that we unconditionally create a new seed calling random.nextLong(), then initialize the node under a private randomness context. This makes sure that any random usage through Randomness.get() will retrieve the proper random instance through RandomizedContext.current().getRandom(). When running under private randomness, the context will return the Random instance that was created with the provided seed (forked from the main random instance) rather than the main Random that's exposed to tests as well. Otherwise tests become non repeatable because that initialization part happens only before the first executed test.
This adds fromXContent method and unit test for sort values that are part of
InternalSearchHit. In order to centralize serialisation and xContent parsing and
rendering code, move all relevant parts to a new class which can be unit tested
much better in isolation.This is part of the preparation for parsing search
responses on the client side.
Sending a request is not a good indicator as it doesn't mean it's processed yet. Instead we should use one of the first request from source to target.
This caused the cluster state block to be added to early , blocking the recovery it self
A previous fix for the handling of paths on Windows related to paths
containing multiple spaces introduced a issue where if JAVA_HOME ends
with a backslash, then Elasticsearch will refuse to start. This is not a
critical bug as a workaround exists (remove the trailing backslash), but
should be fixed nevertheless. This commit addresses this situation while
not regressing the previous fix.
Relates #22132
The allocation decider explanation messages where improved in #21771 to
include the specific Elasticsearch setting that contributed to the
decision taken by the decider. This commit improves upon the
explanation message output by including whether the setting was an index
level setting or a cluster level setting. This will further help the
user understand and locate the setting that is the cause of shards
remaining unassigned or remaining on their current node.
Introduces `XContentParser#namedObject which works a little like
`StreamInput#readNamedWriteable`: on startup components register
parsers under names and a superclass. At runtime we look up the
parser and call it to parse the object.
Right now the parsers take a context object they use to help with
the parsing but I hope to be able to eliminate the need for this
context as most what it is used for at this point is to move
around parser registries which should be replaced by this method
eventually. I make no effort to do so in this PR because it is
big enough already. This is meant to the a start down a road that
allows us to remove classes like `QueryParseContext`,
`AggregatorParsers`, `IndicesQueriesRegistry`, and
`ParseFieldRegistry`.
The goal here is to reduce the amount of plumbing required to
allow parsing pluggable things. With this you don't have to pass
registries all over the place. Instead you must pass a super
registry to fewer places and use it to wrap the reader. This is
the same tradeoff that we use for NamedWriteable and it allows
much, much simpler binary serialization. We think we want that
same thing for xcontent serialization.
The only parsing actually converted to this method is parsing
`ScoreFunctions` inside of `FunctionScoreQuery`. I chose this
because it is relatively self contained.
It looks like the exception reason can differ in different default
locales, so the build would fail in any non-English locale. This
switches the catch to the name of the exception which shouldn't
vary.
ClusterStateObserver is a utility class that simplifies interacting with the cluster state in cases where an action takes a decision based on the current cluster state but may want to wait for a new state and retry upon failure. The ClusterStateObserver implements its functionality by keeping a reference to the last cluster state that it observed. When a new ClusterStateObserver is created, it samples a cluster state from the cluster service which is subsequently used for change detection. If actions take a long time to process, however, the cluster observer can reference very old cluster states. Due to cluster observers being created very frequently and cluster states being potentially large the referenced cluster states can waste a lot of heap space. A specific example where this can make a node go out of memory is given in point 2 of issue #21568: The action listener in TransportMasterNodeAction.AsyncSingleAction has a ClusterStateObserver to coordinate the retry mechanism if the action on the master node fails due to the node not being master anymore. The ClusterStateObserver in AsyncSingleAction keeps a reference to the full cluster state when the action was initiated. If the pending tasks queue grows quite large and has older items in it lots of cluster states can possibly be referenced.
This commit changes the ClusterStateObserver to hold only onto the part of the cluster state that's needed for change detection.
Tim B
Nik Everett
Boaz Leskes
Tal Levy
Stéphane Campinas
Martijn van Groningen
Colin Goodheart-Smithe
Adrien Grand
Jason Tedor
Francesc Gil
David Pilato
Luca Cavanna
Nic Palmer
Rui Hu
javanna
Christoph Büscher
Clinton Gormley
Gameldar
Chris Earle
Ali Beyad
Yannick Welsch