The initial implementation of two phase commit based cluster state publishing (#13062) relied on a single in memory "pending" cluster state that is only processed by ZenDiscovery once committed by the master. While this is fine on it's own, it resulted in an issue with acknowledged APIs, such as the open index API, in the extreme case where a node falls behind and receives a commit message after a new cluster state has been published. Specifically:
1) Master receives and acked-API call and publishes cluster state CS1
2) Master waits for a min-master nodes to receives CS1 and commits it.
3) All nodes that have responded to CS1 are sent a commit message, however, node N didn't respond yet
4) Master waits for publish timeout (defaults to 30s) for all nodes to process the commit. Node N fails to do so.
5) Master publishes a cluster state CS2. Node N responds to cluster state CS1's publishing but receives cluster state CS2 before the commit for CS1 arrives.
6) The commit message for cluster CS1 is processed on node N, but fails because CS2 is pending. This caused the acked API in step 1 to return (but CS2 , is not yet processed).
In this case, the action indicated by CS1 is not yet executed on node N and therefore the acked API calls return pre-maturely. Note that once CS2 is processed but the change in CS1 takes effect (cluster state operations are safe to batch and we do so all the time).
An example failure can be found on: http://build-us-00.elastic.co/job/es_feature_two_phase_pub/314/
This commit extracts the already existing pending cluster state queue (processNewClusterStates) from ZenDiscovery into it's own class, which serves as a temporary container for in-flight cluster states. Once committed the cluster states are transferred to ZenDiscovery as they used to before. This allows "lagging" cluster states to still be successfully committed and processed (and likely to be ignored as a newer cluster state has already been processed).
As a side effect, all batching logic is now extracted from ZenDiscovery and is unit tested.
This commit removes and now forbids all uses of
com.google.common.collect.Queues across the codebase. This is one of
many steps in the eventual removal of Guava as a dependency.
Relates #13224
This commit removes and now forbids all uses of
com.google.common.collect.ImmutableSortedSet across the codebase. This
is one of many steps in the eventual removal of Guava as a dependency.
Relates #13224
The MockInternalClusterInfoService depends on a constant and helper
method from actual test cases. This moves the constant and helper method
into the mock itself. Without this change, the classes put into the test
jar are not completely useable on their own (since this mock is in the
test jar, but the test cases are not).
This commit removes and now forbids all uses of
com.google.common.base.Preconditions#checkNotNull across the codebase.
This is one of many steps in the eventual removal of Guava as a
dependency.
Relates #13224
The semantics of the `boost` parameter for `function_score` changed. This is
due to the fact that Lucene now requires that query boosts and top-level boosts
are applied the same way.
Requesting a million hits, or page 100,000 is always a bad idea, but users
may not be aware of this. This adds a per-index limit on the maximum size +
from that can be requested which defaults to 10,000.
This should not interfere with deep-scrolling.
Closes#9311
This commit removes and now forbids all uses of
com.google.common.collect.Sets across the codebase. This is one of many
steps in the eventual removal of Guava as a dependency.
Relates #13224
* Dropped ScoreType in favour of Lucene's ScoreMode
* Removed `score_type` option from `has_child` and `has_parent` queries in favour for the already existing `score_mode` option.
* Removed the score mode `sum` in favour for the already existing `total` score mode. (`sum` doesn't exist in Lucene's ScoreMode class)
* If `max_children` is set to `0` it now really means that zero children are allowed to match.
Adds a node attribute to all test runs and uses the attribute to test
`_cat/nodeattrs`.
Note that its quite possible create an impressively slow regex while doing
this and you have to be careful. See comment in commit for more if curious.
Closes#12558
Previously PipelineAggregatorFactory's at the root to the agg tree (top-level aggs) were not validated. This commit adds a call to PipelineAggregatoFactory.validate() for that case.
Closes#13179
There are a few tests that currently use the statically generated
backcompat indexes. This change moves them to a shared location, so they
no longer have to build a path based on the package name of the old
index tests.
This commit removes and now forbids all uses of
com.google.common.collect.Maps across the codebase. This is one of many
steps in the eventual removal of Guava as a dependency.
Relates #13224
This commit addresses several bugs that prevented the Windows
service from being started or stopped:
- Extra white space in the concatenation of java options in
elasticsearch.in.bat which tripped up Apache Commons Daemon
and caused ES to startup without any params, eventually leading
to the "path.home is not configured" exception.
- service.bat was not passing the start argument to ES
- The service could not be stopped gracefully via the stop command
because there wasn't a method for procrun to call.
Closes#13247Closes#13401
