Today when we start a `TransportClient` we use the given transport
addresses and create a `DiscoveryNode` from it without knowing the
actual nodes version. We just use the `Version.CURRENT` which is an
upper bound. Yet, the other node might be a version less than the
currently running and serialisation of the nodes info might break. We
should rather use a lower bound here which is the version of the first
release with the same major version as `Version.CURRENT` since this is
what we officially support.
This commit moves to use the minimum major version or an RC / Snapshot
if the current version is a snapshot.
Closes#6894
The `exists` and `missing` filters need to merge postings lists of all existing
terms, which can be very costly, especially on high-cardinality fields. This
commit indexes the field names of a document under `_field_names` and reuses it
to speed up the `exists` and `missing` filters.
This is only enabled for indices that are created on or after Elasticsearch
1.3.0.
Close#5659
Needed for REST backwards compatibility tests, since we need to run older tests with the latest runner, which randomizes shards and replicas, but the tests rely on defaults (5,1).
Done in a generic way based on compatibility versions e.g. `-Dtests.compatibility=1.0.0` allows to run tests in a special manner that is compatibile with 1.0.0 version.
Also moved back randomIndexTemplate to ElasticsearchIntegrationTest (from ImmutableCluster) where all the randomized aspects should be.
Closes#5897
This commit upgrades to Lucene 4.6 and contains the following improvements:
* Remove XIndexWriter in favor of the fixed IndexWriter
* Removes patched XLuceneConstantScoreQuery
* Now uses Lucene passage formatters contributed from Elasticsearch in PostingsHighlighter
* Upgrades to Lucene46 Codec from Lucene45 Codec
* Fixes problem in CommonTermsQueryParser where close was never called.
Closes#4241
when starting the request/response cycle, we should use the lowest version out of the current node version, and the target node version to serialize the request, and put it in the header. this will allow to support both backward and forward comp.
in addition, have Version as an injected value to different services, to make different versions more easily testable, compared to using Version#CURRENT
The Version class had hard to understand semantics when two versions were
compared against each other.
Sample of the new logic:
* V_0_20_0.before(V_0_90_0) => true
* V_0_90_0.after(V_0_20_0) => true
Closes#3124
This Lucene Release introduced a new API on DocIdSetIterator that requires each
implementation to return a `cost` upperbound as a function of the iterated documents.
This API allows for several optimizations during query execution especially in
Conjunction and Disjunction Queries with min_should_match set.
Closes#2990
use the latest Lucene version as specified in o.e.common.lucene.Lucene
and must be upgraded with each lucene release.
This commit adds an assert that fails once the actual lucene version
that is used is higher than the current releases version.
