The search_after parameter provides a way to efficiently paginate from one page to the next. This parameter accepts an array of sort values, those values are then used by the searcher to sort the top hits from the first document that is greater to the sort values.
This parameter must be used in conjunction with the sort parameter, it must contain exactly the same number of values than the number of fields to sort on.
NOTE: A field with one unique value per document should be used as the last element of the sort specification. Otherwise the sort order for documents that have the same sort values would be undefined. The recommended way is to use the field `_uuid` which is certain to contain one unique value for each document.
Fixes#8192
Doc values can now only be enabled by setting `doc_values: true` in the
mappings. Removing this feature also means that we can now fail mapping updates
that try to disable doc values.
Parsing is currently very lenient, which has the bad side-effect that if you
have a typo and pass eg. `store: fasle` this will actually be interpreted as
`store: true`. Since mappings can't be changed after the fact, it is quite bad
if it happens on an index that already contains data.
Note that this does not cover all settings that accept a boolean, but since the
PR was quite hard to build and already covers some main settirgs like `store`
or `doc_values` this would already be a good incremental improvement.
Doc values currently default to `true` if the field is indexed and not analyzed.
So setting `index:no` automatically disables doc values, which is not explicit
in the documentation.
This commit makes doc values default to true for numerics, booleans regardless
of whether they are indexed. Not indexed strings still don't have doc values,
since we can't know whether it is rather a text or keyword field. This
potential source of confusion should go away when we split `string` into `text`
and `keyword`.
This commit adds handling on the master side for shard failure requests
for shards that do not exist at the time that they are processed on the
master node (whether it be from errant requests, duplicate requests, or
both the primary and replica notifying the master of a shard
failure). This change is made because such shard failure requests should
always be considered successful (the failed shard is not there anymore),
but could be marked as failed if batched with a shard failure request
that does in fact fail. This avoids the possibility of an unexpected
catastrophic failure while applying the failed shards from causing such
a request to also be marked as failed setting in motion additional
failures.
Closes#16089
RescoreBuilder: Add parsing and creating of RescoreSearchContext
Adding the ability to parse from xContent to the rescore builder. Also making RescoreBuilder an abstract base class that encapsulates the window_size setting, with QueryRescoreBuilder as its only implementation at the moment.
Relates to #15559
When a Version is passed to `Settings#put(String, Version)` it's id is used as
an integer which should also be used to deserialize it on the consumer end.
Today AssertinLocalTransport expects Version#toString() to be used which can lead
to subtile bugs in tests.
Merge feature/ingest branch into master branch.
This adds the ingest feature to ES that allows to preprocess document before indexing on an ingest node.
By default a node is an ingest node. Documents are preprocessed via a pipeline. A pipeline consists
out of one or more processors Each processor makes one or more modifications to a document processed.
There are many types of processors available out-of-the-box that are designed to make a specific change to a document being processed. In a cluster many pipeline can be configured via dedicated pipeline APIs. An new option on the bulk
and index APIs allows to control what pipeline is picked for preprocessing. If no pipeline is specified then the ingest
feature is skipped and no preprocessing takes place.
The current RescoreBaseBuilder only serves as a container
for a pair of the optional `window_size` parameter and
the actual rescorer. Instead of a wrapper object, this makes
it an abstract class that conrete implementations like
QueryRescoreBuilder can extend.
With this commit we deprecate the widely misunderstood
fuzzy query but will still allow the fuzziness
parameter in match queries and suggesters.
Relates to #15760
Boolean parsing is now strict. Also added isIngestNode methods to DiscoveryNode to align this setting with the existing node.data node.master and node.client. Removed NodeModule#isIngestEnabled methods that are not needed anymore.
This commit removes non-reproducible randomness from
SearchWhileCreatingIndexIT. The cause of the non-reproducible randomness
is the use of a random draws for the shard preference inside of a
non-deterministic while loop. Because the inner while loop executed a
non-deterministic number of times, the draws for the next iteration of
the outer loop would be impacted by this making the random draws
non-reproducible. The solution is to move the random draws outside of
the while loop (just make a single draw for the prefernce and increment
with a counter), and remove the outer loop iteration instead using an
annotation to get the desired repetitions.
Closes#16208
This commit amends the logging statement in two places in
ShardStateAction to log the full shard ID instead of just the numerical
shard ID (without the index name).
This commit migrates all the settings under network service to the new settings infra.
It also adds some chaining utils to make fall back settings slightly less verbose.
Breaking (but I think acceptable) - network.tcp.no_delay and network.tcp.keep_alive used to accept the value `default` which make us not set them at all on netty. Our default was true so we weren't using this feature. I removed it and now we only accept a true boolean.
* `test.cluster.node.seed` was only used in one place where it wasn't adding value and was now replaced with a constant
* `tests.portsfile` is now an official setting and has been renamed to `node.portsfile`
this commit also convert `search.default_keep_alive` and `search.keep_alive_interval` to the new settings infrastrucutre
PhraseSuggestionBuilder uses three smoothing models internally.
In order to enable proper serialization / parsing from xContent
to the phrase suggester later, this change starts by making the
smoothing models writable, adding hashCode/equals and fromXContent.
Currently this fails when loading data from a segment, which means that it will
never fail on an empty index since it does not have segments.
Closes#16135
This commit also uses a try/finally with success pattern instead of catching
and excpetion. TranslogTests reproduce with `-Dtests.seed=DF6A38BAE739227A` every
time.
Closes#16142
TranslogWriter.closeIntoReader transfers the file ownership from a writer to a reader and closes the writer. If the transfer fails, we need to make sure we closed the underlying channel as the writer is already closes.
See: http://build-us-00.elastic.co/job/es_core_master_regression/4355
Relates to #16142
Today we run the metadata upgrade only on the current major version
but this should run on every upgrade at least once to ensure we don't miss
an important check or upgrade.
This commit fixes a minor issue with the shard ID that is logged while
indexing in DiscoveryWithServiceDisruptionsIT#testAckedIndexing. The
issue is that the operation routing hash could lead to a negative
remainder modulo the number of primaries (if the hash itself is
negative) but should instead be the normalized positive remainder. This
issue only impacts the logging of the shard ID as the actual shard ID
used during indexing is computed elsewhere but would cause the shard ID
in the affected logging statement to not match shard IDs that are logged
elsewhere.
this change allows us to open existing IndexMetaData that contains invalid, removed settings
or settings with invalid values and instead of filling up the users disks with exceptions we _archive_
the settings with and `archive.` prefix. This allows us to warn the user via logs (once it's archived) as
well as via external tools like the upgrade validation tool since those archived settings will be preserved
even over restarts etc. It will prevent indices from failing during the allocaiton phase but instead will
print a prominent warning on index metadata recovery from disk.
Affects match, multi_match, query_string and simple_query_string queries.
Direct bool queries are not affected anymore (minimum_should_match is applied even if the coord factor is disabled).
Default headers are now read-only fallbacks if the key is actually not in
the headers map. That way we never serialize them across the wire and also never
prevent them from being overwritten.
This has caused some test failures lately especially on window (which is likely caused
by the rather bad performance of the windows test machines).
See one failure here:
http://build-us-00.elastic.co/job/es_core_master_window-2008/2934/
This fix has now also a unittest that tests this issue separately.
* Cleaned up MapperService#searchFilter(...) and moved it DefaultSearchContext, since it that class was the only user. As part of the cleanup percolate query documents are no longer excluded from the search response.
* Removed resolveClosestNestedObjectMapper(...) method as it was no longer used.
* Removed DocumentTypeListener infrastructure. Before it was used by the percolator and parent/child, but these features no longer use it.
Closes#15924
Adding the ability to parse from xContent to the rescore builder.
Also making RescoreBuilder an interface and renaming the current
base builder that encapsulates the `window_size` setting the the
concrete rescorer implementation to RescoreBaseBuilder.
* Remove remaining 1.x bwc logic.
* Stop storing stored fields and indexed terms. The _parent field's only purpose is to support joins between parent and child type and only storing doc values is sufficient.
* In the mapping the parent field mapper is now known under '{parent}#{child}' key, because this is the field the parent/child join uses too.
* Added new sub fetch phase to lookup that _parent field from doc values field if that is required (before this was fetched from stored _parent field)
* Removed the ability to query directly on `_parent` in the query dsl. Instead the `{parent}#{child}` field should be used. Under the hood a doc values query is used instead of a term query, because only doc values fields are stored now.
* Added a new `parent_id` query to easily query child documents with a specific parent id without having to know what join field to use
* Also in aggregations `_parent` field can't be used any more and `{parent}#{child}` field name should be used instead to aggregate directly on the _parent join field.
While conceptually correct this call can be confusing since if a
realtime GET is exectued after refresh is called with realtime=true it might
fetch the wrong document out of the translog since the isRefreshNeeded guard
might return false once the new searcher is published but it will not
wait until the verision map is flushed and that can cause a slight race condition
if a subsequent call GETs a document that it expects to come from the index.
Ie. the `_size` mapper tests do this and expecte the GET call to return the document
from the index but it comes from the t-log due to this race.
This change only uses the guard in an async refresh that we schedule to prevent unnecessary
refresh calls but will allow API Refresh calls to have the somewhat less confusing semantics.
This was introduces lately only on unrelease major version branches.
Mostly these were pretty easy to clean up by insisting that the request
and response stays consistent across the filter. There are a few places
where we have to make assumptions in tests but those are valid assumptions
for the test.
This adds the ability to filter clients multiple times and allows to inherit the outer context if done so.
This also adds a method to access all tasks in the threadpool in an unwrapped fashion
This commit allows an integ test to wrap all clients that are exposed by the
InternalTestCluster which is useful for request interception or to add general headers
to request or to intercept client to server call even if the client calls are done from within
the test framework.
Today the TransportClient uses the given settings rather than the updated setting from the plugin
service to pass on to it's modules etc. It should use the updates settings instead.
Today we already validate all index level setting on startup. For global
settings we are not fully there yet since not all settings are registered.
Yet we can already validate the ones that are know if their values are parseable/correct.
This is better than nothing and an improvement to what we had before. Over time there will
be more an dmore setting converted and we can finally flip the switch.
Cut over all index scope settings to the new setting infrastrucuture
This change moves all index.* settings over to the new infrastructure. This means in short that:
- every setting that has an index scope must be registered up-front
- index settings are validated on index creation, template creation, index settings update
- node level settings starting with index.* are validated on node startup
- settings that are private to ES like index.version.created can only be set by tests when they install a specific test plugin.
- all index settings can be reset by passing null as their value on update
- all index settings defaults can be listed via the settings APIs
Closes#12854Closes#6732Closes#16032Closes#12790
This commit adds handling of channel failures when starting a shard to
o.e.c.a.s.ShardStateAction. This means that shard started requests
that timeout or occur when there is no master or the master leaves
after the request is sent will now be retried from here. The listener
for a shard state request will now only be notified upon successful
completion of the shard state request, or when a catastrophic
non-channel failure occurs.
This commit also refactors the handling of shard failure requests so
that the two shard state actions of shard failure and shard started
now share the same channel-retry and notification logic.
This commit fixes an issue in the handling of TransportExceptions in
ShardStateAction. There were two cases not being handled correctly.
- when the local node is shutting down, handlers will be notified with
a TransportException with a message starting "transport stopped"
- when the remote node disconnects, handlers will be notified with a
NodeDisconnectedException
In both of these cases, the cause of the exception will be null and this
was incorrectly being handled. The first case can passed to the listener
like any other critical non-channel failure, and the second case can be
handled by modifying the logic for detecting master channel exceptions.
There was a third case of NodeNotConnectedException that was not being
treated as a master channel exception but should be.
This commit adds an integration test that simulates the handling of a
shard failure request during a network partition. By isolating the
master from the cluster while a shard failed request is in flight, this
test simulates that we wait until a new master is elected and then retry
sending that shard failed request to the newly elected master.
This commit adds methods to CapturingTransport to separate local and
remote transport exceptions. The motivation for this change is that
local transport exceptions are delivered to listeners (usually, but not
always) wrapped in SendRequestTransportException while remote transport
exceptions are delivered to listeners wrapped in
RemoteTransportException. By making this distinction clear in the
CapturingTransport, this makes it less likely that tests will make
incorrect assumptions about the exceptions coming out of the transport
layer to listeners.
Closes#16057
Currently we use ref counting to manage the life cycles of a translog file. This was done to allow the creation of view and snapshots, making sure that the underlying files are available. This commit takes a simpler route based on the observation that a snapshot doesn't need to have it's own life cycle but rather can lift on the lifecycle of it's parent (translog or view). If code failes to adhere to this assumption it will get a channel already closed exception. As such, each file is now owned by a single owner and there is no need for reference counting. As part of the rewrite TranslogReader is renamed to BaseTranslogReader and ImmutableTranslogReader to TranslogReader
Also, I took the opportunity to clean up legacy translog readers we don't need in master.
Closes#15898
Sometimes action callers might be interested in having an access to the task that they have just initiated. This changes allows callers to get access to the Task object of the actions that they just started if the action supports the task management.
We have two similar tests with the same name, ContextAndHeaderTransportTests.
They shared lots of common code so I extracted much of it into
ActionRecordingPlugin, a plugin which records all action requests for later
inspection.
I also removed all the warnings from both tests. That made lang-mustache
compile cleanly without any custom -Xlint so I removed those. To remove
the warnings I had to add type parameters to ActionFilter which seemed
like a good idea anyway.
This commit tightens the load average test assertions by separating out
OS X as a system where we can make tighter assertions about the load
average values.
This commit fixes the test for load averages on FreeBSD. On FreeBSD, it
is either the case that linprocfs is mounted at /compat/linux/proc in
which case the load averages are available, or this is not the case and
no load average are available. Previously, the test on FreeBSD was
falling back to the catch all case which asserts that the five-minute
and fifteen-minute load averages are not available.
This commit normalizes the one-minute load average obtained from
OperatingSystemMXBean#getSystemLoadAverage to -1 when it is not
available. This is to reflect the Javadocs for this method saying "If
the load average is not available, a negative value is returned."
1. Gets guice out of the business of building ScoreFunctionParsers and
QueryParsers.
2. Moves QueryParser registration to SearchModule
3. Moves NamedWriteableRegistry construction out of guice and into Node and
TransportClient.
4. Moves shape registration into SearchModule so now all named writeable
registration is done in the SearchModule.
This is breaking for plugin authors. Instead of declaring new QueryParser
like:
```java
public void onModule(IndicesModule module) {
module.registerQueryParser(NewQueryParser.class);
}
```
you do it like:
```java
public void onModule(SearchModule module) {
module.registerQueryParser(NewQueryParser::new);
}
```
The QueryParser's argument no longer come from @Inject, now they come from
the declaration in the plugin. The above example is for a no-arg QueryParser.
Most of the QueryParsers in Elasticsearch are no-arg.
ScoreFunctionParsers have a similar but slightly different change. This:
```java
public void onModule(SearchModule module) {
module.registerFunctionScoreParser(NewFunctionScoreParser.class);
}
```
becomes
```java
public void onModule(SearchModule module) {
module.registerFunctionScoreParser(new NewFunctionScoreParser());
}
```
Since all known ScoreFunctionParsers have no arg constructors its simpler to
just build them at registration time rather than specify a supplier that is
used to build them later.
This commit modifies the load_average in the node stats API response
to be an object containing the one-minute, five-minute and
fifteen-minute load averages as fields (if those values are
available). Additionally, this commit modifies the cat nodes API
response to format the one-minute, five-minute and fifteen-minute load
averages as null if any of the respective values are not available.
This would be useful in order to only perform some validations in the case of
a mapping update and in cases when a mapping is restored eg. after a restart,
such as discussed in #15989.
This replaces the current `applyDefault` parameter which can be derived from
the mapping merge reason: the default mapping should be applied only in case of
a mapping update, if the mapping does not exist yet and if this is not the
default mapping.
Setting realTime to false in the get term vector request ensures,
that after a refresh the document is not fetched from the translog,
which seems to yield different in rare test runs.
The change likely triggering this was introduced in #15933
From this commit on we also validate all settings starting with `index.` that are
node-level settings configured in yaml files or via commandline arguments or system properties.
This check happens on node startup before the actual node is started.
The old infa has been removed in this commit such that nothing uses `DynamicSettings` anymore
and all index-scoped settings require to be registered before the node has fully started up.
Simon Willnauer
Simon Willnauer
Jim Ferenczi
Adrien Grand
Daniel Mitterdorfer
Martijn van Groningen
Jason Tedor
Boaz Leskes
Luca Cavanna
Christoph Büscher
javanna
Isabel Drost-Fromm
Isabel Drost-Fromm
Ryan Ernst
Tanguy Leroux
markharwood
Yannick Welsch
Tal Levy
Clinton Gormley
Nik Everett
Robert Muir
Robert Muir
Igor Motov
Alexander Reelsen
Britta Weber