This change modifies the deprecation log message emitted when a setting
is found which is deprecated. The new message indicates docs for the
deprecated settings can be found in the breaking changes docs for the
next major version.
closes#22849
This commit is just a code cleanup of RestGetIndicesAction.java. For
example, we remove an unnecessary class, remove some unnecessary local
variables, and simplify some code flow.
Relates #23129
Get source HEAD requests incorrectly return a content-length header of
0. This commit addresses this by removing the special handling for get
source HEAD requests, and just relying on the general mechanism that
exists for handling HEAD requests in the REST layer.
Relates #23151
Now that we have more flexible search phases we should move the rather
hacky integration of the collapse feature as a real search phase that can
be tested and used by itself. This commit adds a new ExpandSearchPhase
including a unittest for the phase. It's integrated into the fetch phase
as an optional successor.
When nested objects are present in the mappings, many queries get deoptimized
due to the need to exclude documents that are not in the right space. For
instance, a filter is applied to all queries that prevents them from matching
non-root documents (`+*:* -_type:__*`). Moreover, a filter is applied to all
child queries of `nested` queries in order to make sure that the child query
only matches child documents (`_type:__nested_path`), which is required by
`ToParentBlockJoinQuery` (the Lucene query behing Elasticsearch's `nested`
queries).
These additional filters slow down `nested` queries. In 1.7-, the cost was
somehow amortized by the fact that we cached filters very aggressively. However,
this has proven to be a significant source of slow downs since 2.0 for users
of `nested` mappings and queries, see #20797.
This change makes the filtering a bit smarter. For instance if the query is a
`match_all` query, then we need to exclude nested docs. However, if the query
is `foo: bar` then it may only match root documents since `foo` is a top-level
field, so no additional filtering is required.
Another improvement is to use a `FILTER` clause on all types rather than a
`MUST_NOT` clause on all nested paths when possible since `FILTER` clauses
are more efficient.
Here are some examples of queries and how they get rewritten:
```
"match_all": {}
```
This query gets rewritten to `ConstantScore(+*:* -_type:__*)` on master and
`ConstantScore(_type:AutomatonQuery {\norg.apache.lucene.util.automaton.Automaton@4371da44})`
with this change. The automaton is the complement of `_type:__*` so it matches
the same documents, but is faster since it is now a positive clause. Simplistic
performance testing on a 10M index where each root document has 5 nested
documents on average gave a latency of 420ms on master and 90ms with this change
applied.
```
"term": {
"foo": {
"value": "0"
}
}
```
This query is rewritten to `+foo:0 #(ConstantScore(+*:* -_type:__*))^0.0` on
master and `foo:0` with this change: we do not need to filter nested docs out
since the query cannot match nested docs. While doing performance testing in
the same conditions as above, response times went from 250ms to 50ms.
```
"nested": {
"path": "nested",
"query": {
"term": {
"nested.foo": {
"value": "0"
}
}
}
}
```
This query is rewritten to
`+ToParentBlockJoinQuery (+nested.foo:0 #_type:__nested) #(ConstantScore(+*:* -_type:__*))^0.0`
on master and `ToParentBlockJoinQuery (nested.foo:0)` with this change. The
top-level filter (`-_type:__*`) could be removed since `nested` queries only
match documents of the parent space, as well as the child filter
(`#_type:__nested`) since the child query may only match nested docs since the
`nested` object has both `include_in_parent` and `include_in_root` set to
`false`. While doing performance testing in the same conditions as above,
response times went from 850ms to 270ms.
This gives Lucene the choice to use index/point-based queries or
doc-values-based queries depending on which one is more efficient. This commit
integrates this feature for:
- long/integer/short/byte/double/float/half_float/scaled_float ranges,
- date ranges,
- geo bounding box queries,
- geo distance queries.
Today all search phases are inner classes of AbstractSearchAsyncAction or one of it's
subclasses. This makes unit testing of these classes practically impossible. This commit
Extracts `DfsQueryPhase` and `FetchSearchPhase` or of the code that composes the actual
query execution types and moves most of the fan-out and collect code into an `InitialSearchPhase`
class that can be used to build initial search phases (phases that retry on shards). This will
make modification to these classes simpler and allows to easily compose or add new search phases
down the road if additional roundtrips are required.
When Netty decodes a bad HTTP request, it marks the decoder result on
the HTTP request as a failure, and reroutes the request to GET
/bad-request. This either leads to puzzling responses when a bad request
is sent to Elasticsearch (if an index named "bad-request" does not exist
then it produces an index not found exception and otherwise responds
with the index settings for the index named "bad-request"). This commit
addresses this by inspecting the decoder result on the HTTP request and
dispatching the request to a bad request handler preserving the initial
cause of the bad request and providing an error message to the client.
Relates #23153
This commit adds a new method to the TransportChannel that provides access to the version of the
remote node that the response is being sent on and that the request came from. This is helpful
for serialization of data attached as headers.
* Fix total disk bytes returning negative value
This adds a workaround for JDK-8162520 -
https://bugs.openjdk.java.net/browse/JDK-8162520
Some filesystems can be so large that they return a negative value for their
free/used/available disk bytes due to being larger than `Long.MAX_VALUE`.
This adds protection for our `FsProbe` implementation and adds a test that it
does the right thing.
Today when trying to encode the location header to ASCII, we rely on the
Java URI API. This API requires a proper URI which blows up whenever the
URI contains, for example, a space (which can happen if the type, ID, or
routing contain a space). This commit addresses this issue by properly
encoding the URI. Additionally, we remove the need to create a URI
simplifying the code flow.
Relates #23133
This commit changes the RefreshPolicy enum so that string representation are exposed. This will help the high level rest client to simply use refreshPolicy.getValue() to get the corresponding parameter value of a given refresh policy.
#21817 introduced the notion of a cluster state applier and banned those for sampling the cluster state directly (as it is not applied yet). Testing has exposed one exceptional use case - if the appliers want to spawn off a follow up it may require waiting for specific new cluster state (for example, the shard started action, called by the IndicesClusterStateService, may run into trouble connecting to the master and wait for a new master to be elected). This requires creating an observer which, in turn, samples the cluster state.
An example failure can be seen at https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+periodic/1701/console
This commit allows creating an observer from a cluster state applier. The observer is adapted to exclude any potential old cluster state in its logic.
Template HEAD requests incorrectly return a content-length header of
0. This commit addresses this by removing the special handling for
template HEAD requests, and just relying on the general mechanism that
exists for handling HEAD requests in the REST layer.
Relates #23130
GraphQueries are now generated as simple clauses in BooleanQuery. So for instance a multi terms synonym will generate
a GraphQuery but only for the side paths, the other part of the query will not be impacted. This means that we cannot apply
`minimum_should_match` or `cutoff_frequency` on GraphQuery anymore (only ES 5.3 does that because we generate all possible paths if a query has at least one multi terms synonym).
Starting in 5.4 multi terms synonym will now be treated as a single term when `minimum_should_match` is computed and will be ignored when `cutoff_frequency` is set.
Fixes#23102
Limits the length of `IndexRequest#toString` which also limits the size of the task description generated for `IndexRequest`s. If the document being written is larger than 2kb we skip logging the _source entirely. This is because truncating the source is tricky and it isn't worth it.
Index HEAD requests incorrectly return a content-length header of
0. This commit addresses this by removing the special handling for index
HEAD requests, and just relying on the general mechanism that exists for
handling HEAD requests in the REST layer.
Relates #23112
Alias HEAD requests incorrectly return a content-length header of
0. This commit addresses this by removing the special handling for alias
HEAD requests, and just relying on the general mechanism that exists for
handling HEAD requests in the REST layer.
Relates #23094
This commit adds methods to the BulkProcessor that accept bytes and a XContentType to avoid content type detection. The
methods that do not accept XContentType with bytes have been deprecated by this commit.
Relates #22691
This commit is just a code cleanup of RestGetAliasesAction.java. For
example, we remove an unnecessary class, simplify a convenience method,
and simplify some code flow.
Relates #23095
This pull request reuses the typed_keys parameter added in #22965, but this time it applies it to suggesters. When set to true, the suggester names in the search response will be prefixed with a prefix that reflects their type.
EvillPeerRecoveryIT checks scenario where recovery is happening while there are on going indexing operation that already have been assigned a seq# . This is fairly hard to achieve and the test goes through a couple of hoops via the plugin infra to achieve that. This PR extends the unit tests infra to allow for those hoops to happen in unit tests. This allows the test to be moved to RecoveryDuringReplicationTests
Relates to #22484
This changes removes the SearchResponseListener that was used by the ExpandCollapseSearchResponseListener to expand collapsed hits.
The removal of SearchResponseListener is not a breaking change because it was never released.
This change also replace the blocking call in ExpandCollapseSearchResponseListener by a single asynchronous multi search request. The parallelism of the expand request can be set via CollapseBuilder#max_concurrent_group_searches
Closes#23048
Now that we use bulk for single item indexing, this is often the case. Having an indicator of the id of the indexed document helps debugging.
It now looks like this `BulkShardRequest to [[test][0]] containing [index {[test][type][AVojzy9ZxfWASZ-ysmN7], source[{"auto":true}]}]`
Empty response bodies should only be sent for HEAD requests, otherwise we should always send back info about the exception that was thrown. Removed some manual exception handling in the REST action that should be rather bubbled up and handled by our rest action infra like every other rest action does.
This pull request adds a new parameter to the REST Search API named `typed_keys`. When set to true, the aggregation names in the search response will be prefixed with a prefix that reflects the internal type of the aggregation.
Here is a simple example:
```
GET /_search?typed_keys
{
"aggs": {
"tweets_per_user": {
"terms": {
"field": "user"
}
}
},
"size": 0
}
```
And the response:
```
{
"aggs": {
"sterms:tweets_per_user": {
...
}
}
}
```
This parameter is intended to make life easier for REST clients that could parse back the prefix and could detect the type of the aggregation to parse. It could also be implemented for suggesters.
Today we account for too many response with an `IllegalStateException` in
`AbstractSearchAsyncAction` while this is something that should never happen
we should rather assert that we are always have less or equal the number of
expected ops when waiting for responses.
This commit removes support for the `application/x-ldjson` Content-Type header as this was only used in the first draft
of the spec and had very little uptake. Additionally, the docs for bulk and msearch have been updated to specifically
call out ndjson and mention that the newline character may be preceded by a carriage return.
Finally, the bulk request handling of the carriage return has been improved to remove this character from the source.
Closes#23025
This is just a temporary fix until #23048 is fixed. FieldCollapsing
is executing blocking calls on a network thread which causes potential deadlocks
and trips assertions.
Relates to #23048
Jim Ferenczi
Ryan Ernst
Jason Tedor
Martijn van Groningen
Areek Zillur
Simon Willnauer
Adrien Grand
Jun Ohtani
Christoph Büscher
Jay Modi
Lee Hinman
jaymode
Tanguy Leroux
Boaz Leskes
sabi0
Sebastian
Luca Cavanna
Nik Everett