Reusing Lucene's TermsEnum for _uid/version lookups gives a small
indexing (updates) speedup and brings us a closer to not having
to spend RAM on bloom filters.
Closes#6212
Randomize rewrite methods instead of trying them all when highlighting multi term queries with postings highlighter
Rely on search type randomization and remove all the explicit setSearchType calls as they are not needed anymore
Remove explicit `.from`, `.size` and `.explain`, not needed and might slow tests down (especially explain)
Added support for min_children and max_children parameters to
the has_child query and filter. A parent document will only
be considered if a match if the number of matching children
fall between the min/max bounds.
Closes#6019
Using ping.timeout, which defaults to 3s, to use as a timeout value on the join request a node makes to the master once its discovered can be too small, specifically when there is a large cluster state involved (and by definition, all the buffers and such on the nio layer will be "cold"). Introduce a dedicated join.timeout setting, that by default is 10x the ping.timeout (so 30s by default).
closes#6342
The top_hits aggregation returned an empty InternalTopHits instance with no fields set when there were no result, causing reduce and serialization errors down the road. This is fixed by setting all required fields when a there are no results.
Closes#6346
This default type has been inherited from its ancestor, the (non-paged) recycler whose memory
usage was unbounded and required soft references to make sure it could release memory eventually.
On the contrary, the page cache recycler memory usage is bounded so we could remove soft
references in order to remove load on the garbage collector.
Note: the cache type is already randomized in integration tests.
Close#6320
Mustache extracts the key/value pairs for parameter substitution from
objects and maps but it's decided on the first execution. We need to
make sure if the params are null we pass an empty map to ensure we
bind the map based extractor
Closes#6318
Since plugins should never be committed to the core codebase and it is useful to be able to add plugins to the development environment adding plugins folder to the .gitignore file will stop it from appearing in the unstaged changes
At the moment plain highligher only uses an analyzer defined for on the type
level. However, during the indexing stage it is possible to define analyzer on
per document level, for example mapping '_analyzer' to another field, containing
required name. This commit attempts to make sure that highlighting works
correctly in this scenario.
Closes#5497
Because the NetworkExceptionHelper class relies on the english language in
order to extract information and decide whether a certain exception is a
network problem, we need to set the english locale on startup in order
to prevent other locales to circumvent this check.
Guava's caches have overflow issues around 32GB with our default segment
count of 16 and weight of 1 unit per byte. We give them 100MB of headroom
so 31.9GB.
This limits the sizes of both the field data and filter caches, the two
large guava caches.
Closes#6268
Because json objects are unordered this also adds an explicit order syntax
that looks like
"highlight": {
"fields": [
{"title":{ /*params*/ }},
{"text":{ /*params*/ }}
]
}
This is not useful for any of the builtin highlighters but will be useful
in plugins.
Closes#4649
