We currently have a lot of log messages in our CI output like
```
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
[thirdPartyAudit] WARNING: The referenced class 'org.noggit.JSONParser' cannot be loaded. Please fix the classpath!
... repeated 1827281 times ...
```
This changes these messages to be logged at the DEBUG level, so they
will not show up by default.
Currently, `executeIndexRequestOnPrimary` and `executeDeleteRequestOnPrimary`
methods used to prepare and execute write operations, modifies the provided
request, updating the version and versionType. This commit makes it the
callers responsibility to update request version and versionType and avoids
mutating the provided request in the execute methods.
This commit introduces a new execution mode for the
`simple_query_string` query, which is intended down the road to be a
replacement for the current _all field.
It now does auto-field-expansion and auto-leniency when the following criteria
are ALL met:
The _all field is disabled
No default_field has been set in the index settings
No fields are specified in the request
Additionally, a user can force the "all-like" execution by setting the
all_fields parameter to true.
When executing in all field mode, the `simple_query_string` query will
look at all the fields in the mapping that are not metafields and can be
searched, and automatically expand the list of fields that are going to
be queried.
Relates to #20925, which is the `query_string` version of this work.
This is basically the same behavior, but for the `simple_query_string`
query.
Relates to #19784
This commit clarifies some log messages for the bootstrap checks. The
message is that the user has limits set that are below the minimums that
Elasticsearch requires.
Relates #21423
Null safe dereferences make handling null or missing values shorter.
Compare without:
```
if (ctx._source.missing != null && ctx._source.missing.foo != null) {
ctx._source.foo_length = ctx.source.missing.foo.length()
}
```
To with:
```
Integer length = ctx._source.missing?.foo?.length();
if (length != null) {
ctx._source.foo_length = length
}
```
Combining this with the as of yet unimplemented elvis operator allows
for very concise defaults for nulls:
```
ctx._source.foo_length = ctx._source.missing?.foo?.length() ?: 0;
```
Since you have to start somewhere, we started with null safe dereferenes.
Anyway, this is a feature borrowed from groovy. Groovy allows writing to
null values like:
```
def v = null
v?.field = 'cat'
```
And the writes are simply ignored. Painless doesn't support this at this
point because it'd be complex to implement and maybe not all that useful.
There is no runtime cost for this feature if it is not used. When it is
used we implement it fairly efficiently, adding a jump rather than a
temporary variable.
This should also work fairly well with doc values.
This commit removes some references to 5.x that were picked up when the
migration docs for the cat API were migrated from 5.x to master.
Relates #21342
This commit adds migration docs for the cat API, including a note
regarding the change in response in the cat thread pool API for
unbounded queue sizes.
Relates #21342
This commit ensures that we always restore the thread's original context after execution of
a context preserving runnable. We always wrap runnables in a wrapper that restores the context
at the time it was submitted to the execute method. The ContextPreservingAbstractRunnable
would restore the calling context in the doRun method and then in a try with resources
block would restore the thread's original context. However, the onFailure and onAfter methods
of a AbstractRunnable could modify the thread context and this modified thread context would
continue on as the thread's context after it was returned to the pool and potentially used
for a different purpose.
This change simply makes the level of the ant timestamp for waiting on
the integ test cluster echo at the info level instead of warn (the
default) so that it is only output when running with gradle --info, or
when the wait condition fails.
* Plugins: Convert custom discovery to pull based plugin
This change primarily moves registering custom Discovery implementations
to the pull based DiscoveryPlugin interface. It also keeps the cloud
based discovery plugins re-registering ZenDiscovery under their own name
in order to maintain backwards compatibility. However,
discovery.zen.hosts_provider is changed here to no longer fallback to
discovery.type. Instead, each plugin which previously relied on the
value of discovery.type now sets the hosts_provider to itself if
discovery.type is set to itself, along with a deprecation warning.
If you try to reindex with multiple slices against a node that
doesn't support it we throw an `IllegalArgumentException` so
`assertVersionSerializable` is ok with it and so if this happens
in REST it comes back as a 400 error.
* Rest client: don't reuse that same HttpAsyncResponseConsumer across multiple retries
Turns out that AbstractAsyncResponseConsumer from apache async http client is stateful and cannot be reused across multiple requests. The failover mechanism was mistakenly reusing that same instance, which can be provided by users, across retries in case nodes are down or return 5xx errors. The downside is that we have to change the signature of two public methods, as HttpAsyncResponseConsumer cannot be provided directly anymore, rather its factory needs to be provided which is going to be used to create one instance of the consumer per request attempt.
Up until now we tested our RestClient against multiple nodes only in a mock environment, where we don't really send http requests. In that scenario we can verify that retries etc. work properly but the interaction with the http client library in a real scenario is different and can catch other problems. With this commit we also add an integration test that sends requests to multiple hosts, and some of them may also get stopped meanwhile. The specific test for pathPrefix was also removed as pathPrefix is now randomly applied by default, hence implicitly tested. Moved also a small test method that checked the validity of the path argument to the unit test RestClientSingleHostTests.
Also increase default buffer limit to 100MB and make it required in default consumer
The default buffer limit used to be 10MB but that proved not to be high enough for scroll requests (see reindex from remote). With this commit we increase the limit to 100MB and make it a bit more visibile in the consumer factory.
This commit cleans up the formatting of some Javadocs in
BootstrapCheck.java, and corrects some docs that had become stale as the
bootstrap checks evolved.
The ClusterState class currently has a mutable volatile field "status" that is only used by the ClusterStateObserver to differentiate between a cluster state that is being applied or one that has already been applied. This commit removes the field from cluster state, making it a truly immutable class. This information is stored instead by ClusterService, which is the only place that should update this field (PublishClusterStateAction was also updating it, but that information was never used anywhere). A new class is introduced (ClusterServiceState) which emcompasses the current cluster state as well as the current status, which is only used by the ClusterStateObserver mechanism.
Applied (almost) the same rules we use to validate index names
to new alias names. The only rule not applies it "must be lowercase".
We have tests that don't follow that rule and I except there are lots
of examples of camelCase alias names in the wild. We can add that
validation but I'm not sure it is worth it.
Closes#20748
Adds an alias that starts with `#` to the BWC index and validates
that you can read from it and remove it. Starting with `#` isn't
allowed after 5.1.0/6.0.0 so we don't create the alias or check it
after those versions.
Before this change Eclipse (4.6.1) would show compile errors in `ClusterRerouteRequestTests` for the elements in `RANDOM_COMMAND_GENERATORS`. This seems to be because the eclipse compiler does not recognised that the elements in the list are all `Supplier`s of bjects that are subclasses of `AllocationCommand`.
This change fixes the problem by adding a generics hint to the `Arrays.toList()` call.
We currently often use ensureGreen or ensureYellow to check whether the cluster is in a good state again after shutting down a node. With the change in #21092, however, it can happen that if the node that is stopped is the master node, another node will become master and publish a cluster state where it is master but where the node that was stopped hasn't been removed yet from the cluster state. It will only publish a second state thereafter where the old master is removed. If the ensureGreen/ensureYellow is timed just right, it will get to execute before the second cluster state update removing the old master and the condition ensureGreen / ensureYellow might not hold at that point anymore.
All plugins currently have their own licenses dir for the
dependencyLicenses task, but core disables this and has the check inside
distribution. This may have been better for maven, but for
gradle it makes more sense to just use the dependencyLicenses task that
automatically exists inside :core, and remove the hacked up version that
is inside distribution.
At one point in the past when moving out the rest tests from core to
their own subproject, we had multiple test classes which evenly split up
the tests to run. However, we simplified this and went back to a single
test runner to have better reproduceability in tests. This change
removes the remnants of that multiplexing support.
This commit changes the Javadocs in OsProbe.java to take advantage of
the fact that the line-length limit is 140 characters. This change makes
these Javadocs easier to read and easier to maintain.
This commit removes JVMCheck. Previously there were three checks in this
class:
- check for super word bug in JDK 7
- check for G1GC bugs in JDK 8
- check for broken IBM JDKs
The first check is obsolete since we require JDK 8 now. The second check
is refactored into a bootstrap check. The third check is removed since
we do not even support the IBM JDK.
Relates #21389
This commit adds an assertion to ensure that we do not introduce blocking calls in code
that is called in a ClusterStateListener or another part of the cluster state update process.
Before, when requesting to get the snapshots in a repository, if `_all` was
specified for the set of snapshots to get, any in-progress snapshots would
be returned twice. This commit fixes the issue ensuring that each snapshot,
whether in-progress or completed, is only returned once when making a call to
get snapshots (GET /_snapshot/{repository_name}/_all).
This commit also enables `_current` to appear anywhere in
the get snapshots list, and will be used as a pseudo regex to
mean "match any currently running snapshots".
Closes#21335
Today when acquiring load average stats, this method is rather lenient
when reading /proc/loadavg. This commit removes this leniency so that
any such issues are more likely to be exposed to the end-user.
Relates #21380
Lee Hinman
Areek Zillur
Lee Hinman
Robin Clarke
Clinton Gormley
Nik Everett
Jason Tedor
javanna
Ryan Ernst
Jay Modi
Luca Cavanna
Yannick Welsch
Joeyn414
Colin Goodheart-Smithe
Boaz Leskes
jaymode
Ali Beyad
Adrien Grand