Today we read a vint from the stream to allocate the size of an array up-front
before we start reading the values. This can be dangerous if for instance we read
from a corrupted stream or if some manipulated bytes are send for instance from
an attacker or a fuzzer. In most of the cases we can apply some best effort and
validate the array size to be _sane_ by ensuring we can at read at least N bytes
where N is the expected size of the array.
* Add support for merging custom meta data in tribe node
Currently, when any underlying cluster has custom metadata
(via plugin), tribe node does not store custom meta data in its
cluster state. This is because the tribe node has no idea how to
select the appropriate custom metadata from one or many custom
metadata (corresponding to the number of underlying clusters).
This change adds an interface that custom metadata implementations
can extend to add support for merging mulitple custom metadata of
the same type for storing in the tribe state.
Relates to #20544
Supersedes #20791
* Simplify updating tribe state
* Add tests for merging multiple custom metadata types in tribe node
* cleanup merging custom md logic in tribe service
* [DOCS] Show EC2's auto attribute
This documents the `aws_availability_zone` node attribute as part of the `discovery-ec2` plugin. Also fixes outdated usage of "cloud aws".
This is a followup to #21689 where we removed a misplaced try catch for IndexMissingException and IndexClosedException which was related to #9047 (at least for the index closed case). The code block within the change was moved as part of #20890, which made the catch redundant. It was somehow used before (e.g. in 5.0) but it doesn't seem that this catch had any effect. Added tests to verify that. In fact a specific catch added to the search api only would defeat the purpose of having common indices options that work throughout all our APIs.
Relates to #21689
Today it's not possible to add exceptions to the serialization layer
without breaking BWC. This commit adds the ability to specify the Version
an exception was added that allows to fall back not NotSerializableExceptionWrapper
if the exception is not present in the streams version.
Relates to #21656
TransportSearchAction optimizes the search_type in certain cases, when for instance we are searching against a single shard, or when there is only a suggest section in the request. That optimization is wrapped in a try catch, and when an exception happens we log it and ignore it. This may be a leftover from the past though, as no exception is expected to be thrown in that code block, hence if there is any exception we are probably better off bubbling it up rather than ignoring it.
The `lookupPrototype` method is not used anywhere. Seems like we rather use its `lookupProrotypeSafe` variant (which also throws exception if the prototype is not found) is always. This commit makes the safer variant the default one, by renaming it to "lookupPrototype" and removes the previous "unsafe" variant.
Today we call `writeByte` up to 3x per character in each string written via
`StreamOutput#writeString` this can have quite some overhead when strings
are long or many strings are written. This change adds a local buffer to
convert chars to bytes into the local buffer. Converted bytes are then
written via `writeBytes` instead reducing the overhead of this opertion.
Closes#21660
The overflows were happening in two places, the parsing of the template that
implicitly truncates the `order` when its value does not fall into the `integer`
range, and the comparator that sorts templates in ascending order, since it
returns `order2-order1`, which might overflow.
Closes#21622
* Fix highlighting on a stored keyword field
The highlighter converts stored keyword fields using toString().
Since the keyword fields are stored as utf8 bytes the conversion is broken.
This change uses BytesRef.utf8toString() to convert the field value in a valid string.
Fixes#21636
* Replace BytesRef#utf8ToString with MappedFieldType#valueForDisplay
When Groovy detects a bug in its runtime because an internal assertion
was violated, it throws an GroovyBugError. This descends from
AssertionError and if it goes uncaught will land in the uncaught
exception handler and will not deliver any useful information to the
user. This commit wraps GroovyBugErrors in ScriptExceptions so that
useful information is returned to the user.
If the node name is explicitly set it's not derived from the node ID
meaning that it doesn't immediately appear in the logs. While it can be
tracked down in other places, it would be easier for info purposes if it
just showed up explicitly. This commit adds the node ID to the logs,
whether or not the node name is set.
Relates #21673
Implements a null coalescing operator in painless that looks like `?:`. This form was chosen to emulate Groovy's `?:` operator. It is different in that it only coalesces null values, instead of Groovy's `?:` operator which coalesces all falsy values. I believe that makes it the same as Kotlin's `?:` operator. In other languages this operator looks like `??` (C#) and `COALESCE` (SQL) and `:-` (bash).
This operator is lazy, meaning the right hand side is only evaluated at all if the left hand side is null.
Plugins are closed if they implement java.io.Closeable but this is not
clear from the plugin interface. This commit clarifies this by declaring
that Plugins implement java.io.Closeable and adding an empty
implementation to the base Plugin class.
Relates #21669
By default, it is recommended to start bulk with a size of 10-15MB, and increase it gradually to get the right size for the environment. The example shows originally 1GB, which can lead to some users to just copy-paste the code snippet and start with excessively big sizes.
Backport of #21664 in master branch.
AbstractScopedSettings has the ability to only apply updates/deletes
to dynamic settings. The flag is currently not respected when a setting
is reset/deleted which causes static node settings to be reset if a non-dynamic
key is reset via `null` value.
Closes#21593
This commit moves several allocation decider related inner classes
into their own top-level class, in order to use more easily in
the allocation explain API. This commit also renames some of those
decision related classes to more suitable names.
This is simply a cosmetic change - no functionality changes with this
commit whatsoever.
To summarize the changes:
1. ShardAllocationDecision renamed to AllocateUnassignedDecision
2. RelocationDecision moved to a top-level class
3. MoveDecision moved to a top-level class
4. RebalanceDecision moved to a top-level class
5. ShardAllocationDecisionTests renamed to AllocateUnassignedDecisionTests
6. NodeRebalanceResult moved to a top-level class
7. ShardAllocationDecision#WeightedDecision moved to a top-level class and renamed to NodeAllocationResult.
The "test" task can complete its execution with a timeout exception before the "block-task" actually starts executing. The test thus has to wait for both to be
completed before checking that the updateTasksPerExecutor map has been properly cleaned up.
The first changed referred to an example of the 2.4 documentation. I removed the no longer relevant parts. We should consider adding a little more here.
The second change was just then->than in the suggest_mode popular section
According to the docs and our own tests we accept an ids query without specified
types and default to all types in the index mapping in this case. This changes
the builder to reflect this by making the types no longer a required constructor
argument and changes the parser to reflect that.
A first step moving away from the current parsing to use the generalized
Objectparser and ConstructingObjectParser. This PR start by making use of it in
MatchAllQueryBuilder and IdsQueryBuilder.
* Fix compilation in Eclipse
I'm not sure what the bug is, but ecj doesn't like this expression
unless the type is set explicitly.
* Add comment explaining why no diamond operator
This commit exposes the executor service interface from thread
pool. This will enable some high-level concurrency primitives that will
make some code cleaner and simpler.
Relates #21608
Simon Willnauer
Areek Zillur
Chris Earle
Adrien Grand
Luca Cavanna
Trey Tacon
Chris Fritz
Tanguy Leroux
Clinton Gormley
Jim Ferenczi
David Roberts
javanna
Ludovic Dubost
Jeffery Bradberry
Jason Tedor
Shubham Aggarwal
Nik Everett
Sakthipriyan Vairamani
ismael-hasan
Ali Beyad
Luca Wintergerst
David Pilato
Yannick Welsch
Jack Conradson
Christoph Büscher
Ryan Ernst
Dimitrios Athanasiou