This commit is a slight refactoring of the use of environment variables
in replacing property placeholders. In commit
115f983827 the constructor for
Settings.Builder was made package visible to provide a hook for tests to
mock obtaining environment variables. But we do not need to go that far
and can instead provide a small hook for this for tests without opening
up the constructor. Thus, in this commit we refactor
Settings.Builder#replacePropertyPlaceholders to a package-visible method
that accepts a function providing environment variables by names. The
public-visible method just delegates to this method passing in
System::getenv and tests can use the package-visible method to mock the
behavior they need without relying on external environment variables.
This change makes ES compile with java9 again, build 118.
* There are a handful of changes due to failure to determine types during compile.
* The attachment plugins which use tika needed to have tika upgraded in order to pickup fixes there for java 9.
* azure discovery and s3 repository indirectly depend on jaxb, which is no longer in the default modules. They now add a jaxb dependency externally, and make JarHell allow for this package.
This commit modifies the settings test for environment variables
placeholders so that it is reproducible. The underlying issue is that
the set of environment variables from system to system can vary, and
this means that's we can never be sure that a failing test will be
reproducible. This commit simplifies this test to not rely on external
forces that could influence reproducibility.
Relates #18501
This removes the ScriptMode class entirely, which was an enum with two
options (ON and OFF) which essentially boiled down to true and false.
Now the boolean values are used instead.
We write to Netty channels in an async fashion, but notify listeners via
a transport service adapter before we are certain that the channel write
succeeded. In particular, the tracer logs are implemented via a
transport service adapter and this means that we can write tracer logs
before a write was successful and in some cases the write might fail
leading to misleading logs. This commit attaches the transport service
adapters to channel writes as a listener so that the notification occurs
only after a successful write.
Relates #18500
The default jvm.options file ships with the -server flag to force the
server VM on systems where the server VM is not the default. However,
the method of starting the JVM via the Windows service does not support
the command-line flags for selecting the VM because it starts from a
DLL that is specific to the server or client VM. Thus, we need to
filter these options from the jvm.options configuration file when
installing the Windows service.
Relates #18473
Today if a shard fails during initialization phase due to misconfiguration, broken disks,
missing analyzers, not installed plugins etc. elasticsaerch keeps on trying to initialize
or rather allocate that shard. Yet, in the worst case scenario this ends in an endless
allocation loop. To prevent this loop and all it's sideeffects like spamming log files over
and over again this commit adds an allocation decider that stops allocating a shard that
failed more than N times in a row to allocate. The number or retries can be configured via
`index.allocation.max_retry` and it's default is set to `5`. Once the setting is updated
shards with less failures than the number set per index will be allowed to allocate again.
Internally we maintain a counter on the UnassignedInfo that is reset to `0` once the shards
has been started.
Relates to #18417
Today when sending a REST error to a client, we send the decoded
path. But decoding that path can already be the cause of the error in
which case decoding it again will just throw an exception leading to us
never sending an error back to the client. It would be better to send
the entire raw path to the client and that is what we do in this commit.
Relates #18477
When a snapshot initialization fails, the create snapshot method may return before the snapshot metadata in the cluster state is removed. This can cause follow up snapshot-API related calls to fail due to a snapshot still running. This is causing CI failures when we try to delete indices that were participating in failed snapshot to a read-only repository.
Closes#18121
This commit passes the system property tests.logger.level down to the
external nodes launched in integration tests. Specific tests that want
to override the default logging level should push down a setting to
the nodes using cluster configuration instead of pushing down a system
property to the nodes using cluster configuration.
Relates #18489
This test fails spuriosly in CI and is not reproducible locally.
With this commit we temporarily increase the log level in a few
packages that are suspected to reveal the cause.
This commit fixes a test bug in the scaling thread pool configuration
test. In particular, the test randomization could select min and max for
a thread pool configuration where both are equal to zero. This is a
violation of the requirements of the ThreadPoolExecutor. With this
commit, we now ensure that the max is bounded below by one.
Before 5.0 for it was required that the percolator queries were cached in jvm heap as Lucene queries for two reasons:
1) Performance. The percolator evaluated all percolator queries all the time. There was no pre-selecting queries that are likely to match like we have today.
2) Updates made to percolator queries were visible in realtime, Today these changes are visible in near realtime. So updating no longer requires the percolator to have the queries in jvm heap.
So having the percolator queries in jvm heap via the percolator cache is now less attractive. Especially when there are many percolator queries then these queries can consume many GBs of jvm heap.
Removing the percolator cache does make the percolate query slower compared to how the execution time in 5.0.0-alpha1 and alpha2, but it is still faster compared to 2.x and before.
Please note: The maps inside the pirvate singleton instance of Defininition are no longer unmodifiable, but nothing from the outside can modify it! All private :-)
Currently the query builders expose the clauses of the span
query as a modifiable list. Instead we should make the that
getter return an unmodifiable list. Also renaming the method
used to add a clause from `clause(spanQuery)` to
`addClause(spanQuery)`.
#18360 introduced an extra lock in order to allow writes while syncing the translog. This caused a potential deadlock with snapshotting code where we first acquire the instance lock, followed by a sync (which acquires the syncLock). However, the sync logic acquires the syncLock first, followed by the instance lock.
I considered solving this by not syncing the translog on snapshot - I think we can get away with just flushing it. That however will create subtleties around snapshoting and whether operations in them are persisted. I opted instead to have slightly uglier code with nest synchronized, where the scope of the change is contained to the TranslogWriter class alone.
Jason Tedor
Ryan Ernst
Lee Hinman
Lee Hinman
spalger
Spencer
Ali Beyad
Simon Willnauer
Robert Muir
Jack Conradson
Robert Muir
Igor Motov
Daniel Mitterdorfer
Martijn van Groningen
Clinton Gormley
Julien Pivotto
Uwe Schindler
javanna
Christoph Büscher
Boaz Leskes
Luca Cavanna
eratio08
Nik Everett