Today if the user supplies a custom missing value for a string sort,
we do it in an extremely slow way, not using ordinals but dereferencing
bytes for every document. Ordinals are only used if the missing value
is _first or _last.
Instead, use ordinals with custom missing values too.
Closes#7005
Single index operations to use the newly added IndexClosedException introduced with #6475. This way we can also fail faster when we are trying to execute operations on closed indices and their use is not allowed (depending on indices options). Indices blocks are still checked but we can already throw error while resolving indices (MetaData#concreteIndices).
Effectively this change also affects what we return when using one of the following apis: analyze, bulk, index, update, delete, explain, get, multi_get, mlt, term vector, multi_term vector. We now return `{"error":"IndexClosedException[[test] closed]","status":403}` instead of `{"error":"ClusterBlockException[blocked by: [FORBIDDEN/4/index closed];]","status":403}`.
Closes#6988
The default shard size in the terms aggregation now uses BucketUtils.suggestShardSideQueueSize() to set the shard size if the user does not specify it as a parameter.
Closes#6857
Allow users to control document collection termination, if a specified terminate_after number is
set. Upon setting the newly added parameter, the response will include a boolean terminated_early
flag, indicating if the document collection for any shard terminated early.
closes#6876
instead of a custom encoding in BINARY.
In low level benchmarks this is 2x to 5x faster: its also optimized
for the common case where fields actually only contain at most one
value for each document.
Additionally SORTED_NUMERIC doesn't lose values if they appear more
than once, so mathematical computations such as averages are correct.
Closes#6967
The recycling happening in facets is done manually and arrays are sometimes not
released. Aggregations do it in a less error-prone way by registering on to the
SearchContext.
This commit removes custom comparators in favor of the ones that are in Lucene.
The major change is for nested documents: instead of having a comparator wrapper
that deals with nested documents, this is done at the fielddata level by having
a selector that returns the value to use for comparison.
Sorting with custom missing string values might be slower since it is using
TermValComparator since Lucene's TermOrdValComparator only supports sorting
missing values first or last. But other than this particular case, this change
will allow us to benefit from improvements on comparators from the Lucene side.
Close#5980
This change just changes the default for index.codec.bloom.load to
false: with recent performance improvements to ID lookup, such as
#6298, bloom filters don't give much of a performance gain anymore,
and they can consume non-trivial RAM when there are many tiny
documents.
For now, we still index the bloom filters, so if a given app wants
them back, it can just update the index.codec.bloom.load to true.
Closes#6959
GET only returned null even when stored if requested with GET like this:
`curl -XGET "http://localhost:9200/test/test/1?fields=_all"`
Instead, it should simply behave like a String field and return the
concatenated fields as String.
closes#6924
A new option `prune` has been added to allow users to control phrase suggestion pruning when `collate`
is set. If the new option is set, the phrase suggestion option will contain a boolean `collate_match`
indicating whether the respective result had hits in collation.
CLoses#6927
Today we only do count searches to ensure sane results are returned
after upgrading etc. This change adds sorting to the picture asserting
on simple numeric sorting that uses field data etc. after upgrading.
Relates to #6967
In unicast discovery, we try to reuse existing discovery nodes based on the node address they have. If we find an existing node based on its address, and for some reason its not connected, don't add it to the list of nodes to disconnect from, as that (full) connection is useful down the road
closes#6966
Looking at the connect code, if 2 threads at the same time try and connect to a node, and both enter sequentially the connectLock code block, the second one would try and put the connection in the map, and close the replaced channels, which will cause the existing connection to close as well (since it removes the node from the connectedNodes map)
To fix this, simply make sure we properly check the existence of the connection within the connectionLock block, so there won't be concurrent connections going on.
While doing this, also went over all the mutation code that handles disconnections, and made sure they are properly done only within a connection lock.
closes#6964
This commits removes BytesValues/LongValues/DoubleValues/... and tries to use
Lucene's APIs such as NumericDocValues or RandomAccessOrds instead whenever
possible.
The next step would be to take advantage of the fact that APIs are the same in
Lucene and Elasticsearch in order to remove our custom comparators and use
Lucene's.
There are a few side-effects to this change:
- GeoDistanceComparator has been removed, DoubleValuesComparator is used instead
on top of dynamically computed values (was easier than migrating
GeoDistanceComparator).
- SortedNumericDocValues doesn't guarantee uniqueness so long/double terms
aggregators have been updated to make sure a document cannot fall twice in
the same bucket.
- Sorting by maximum value of a field or running a `max` aggregation is
potentially significantly faster thanks to the random-access API.
Our aggs and p/c aggregations benchmarks don't report differences with this
change on uninverted field data. However the fact that doc values don't need
to be wrapped anymore seems to help a lot. For example
TermsAggregationSearchBenchmark reports ~30% faster terms aggregations on doc
values on string fields with this change, which are now only ~18% slower than
uninverted field data although stored on disk.
Close#6908
Robert Muir
Simon Willnauer
Martijn van Groningen
Adrien Grand
Brian Murphy
javanna
Colin Goodheart-Smithe
Areek Zillur
Lee Hinman
Britta Weber
Clinton Gormley
babeya
Konrad Feldmeier
Peter Johnson @insertcoffee
mikemccand
Shay Banon
Nik Everett