2015年06月2日

This Week in Elasticsearch and Apache Lucene: The second release candidate for 5.2.0 is out

By Leslie HawthornMichael McCandlessAlexander Reelsen

Welcome to This Week in Elasticsearch and Apache Lucene! With this weekly series, we're bringing you an update on all things Elasticsearch and Apache Lucene at Elastic, including the latest on commits, releases and other learning resources.

Top News

Elasticsearch Core

  • Cat API: Add wildcard support for header names (#11367, 2.0.0)
  • Aggregations: Fixed Moving Average prediction to calculate the correct keys (#11375, 2.0.0)
  • Aggregations: Sibling Pipeline Aggregations can now be nested in SingleBucketAggregations (#11380, 2.0.0)
  • Search bug: fielddata_fields query string parameter was ignored (#11368, 2.0.0, 1.6.0, 1.5.3)
  • Internal: make JNA optional for tests and move classes to bootstrap package (#11378, 2.0.0, 1.6.0)
  • Internal: catch UnsatisfiedLinkError on JNA load (#11385, 2.0.0)
  • Internal: deduplicate field names returned by simpleMatchToFullName & simpleMatchToIndexNames in FieldMappersLookup (#11377, 2.0.0)
  • Test: filter out colons in test section names (#11389, 2.0.0)
  • Store: Consolidate directory lock obtain code (#11390, 2.0.0, 1.6.0)
  • Translog: Acquire index writer lock before renaming translog file (#11396, 1.6.0)
  • Engine: Ignore 3x segment upgrade if unneeded (#11383, 1.6.0)
  • Packaging: Export hostname as environment variable for plugin manager (#11399, 2.0.0, 1.6.0)
  • Store: Fall back to reading SegmentInfos from Store if reading from commit fails (#11403, 2.0.0)
  • Store: Fix stream version check in ShardActiveRequest (#11407, 1.6.0)
  • Serialization: Remove old version checks (#11397, 2.0.0)
  • Internal: remove unused code. (#11381, 2.0.0)
  • Settings: Prevent changing the number of replicas on a closed index (#11410, 2.0.0, 1.6.0)
  • Internal: Close lock even if we fail to obtain (#11412, 2.0.0)
  • Query API: Better exception if array passed to term query. (#11384, 2.0.0)
  • Cleanup: Consolidate shard level modules without logic into IndexShardModule (#11416, 2.0.0)
  • Java API: Fix typed parameters in IndexRequestBuilder and CreateIndexRequestBuilder (#11382, 2.0.0)
  • Snapshot/Restore: Fix check for locations in a repository path (#11426, 1.6.0)
  • Recovery: Reduce cluster update reroutes with async fetch (#11421, 2.0.0, 1.6.0)
  • Snapshot/Restore: Add support for applying setting filters when displaying repository settings (#11431, 1.6.0)
  • Recovery: Synced flush 1.6 backport (#11417, 1.6.0)
  • Parent/Child: Fix _parent.type validation (#11436, 2.0.0)
  • Internal: Better error messages when mlockall fails (#11433, 2.0.0)
  • Search: Release search contexts after failed dfs or query phase for d… (#11434, 2.0.0, 1.6.0)
  • Core: Read segment info from latest commit whenever possible (#11361, 2.0.0)
  • Internal: Simplify Transport*OperationAction names (#11349, 2.0.0)
  • Build: maven warnings when running assembly (#11354, 2.0.0)
  • Highlighting: Wildcard field names in highlighting should only return fields that can be highlighted (#11364, 2.0.0, 1.6.0)
  • Bulk: Throw exception if unrecognized parameter in bulk action/metadata line (#11331, 2.0.0, 1.6.0)
  • Aggregations: Add Holt-Winters to moving_avg aggregation (#11043, 2.0.0)
  • Aggregations fix: queries with size=0 break aggregations that need scores (#11358, 2.0.0)
  • Upgrade API: Refactor upgrade API to use transport and write minimum compatible version that the index was upgraded to (#11333, 2.0.0, 1.6.0)
  • Snapshot/Restore: fix FSRepository location configuration (#11284, 1.6.0)
  • Search: Do not specialize TermQuery vs. TermsQuery (#11308, 2.0.0)
  • Recovery: Move index sealing terminology to synced flush (#11336, 2.0.0, 1.6.0)
  • TermVector: REST spec for termvector missing paths on 1.x branch (#11087, 1.6.0, 1.5.3)
  • Dependencies: Upgrade Jackson to 2.5.3 (#11307, 2.0.0, 1.6.0)
  • Internal: tighten up our compression framework (#11279, 2.0.0)
  • Aggregations: Unify script and template requests across codebase (#11164, 2.0.0)
  • Suggester: Remove filter from PhraseSuggester collate (#11195, 2.0.0)
  • Snapshot/Restore: Add support for applying setting filters when dislaying repository settings (#11270, 2.0.0)
  • Allocation: Display low disk watermark to be consistent with documentation (#11313, 2.0.0, 1.6.0)
  • Packaging: Add common systemd file for RPM/DEB package (#10725, 2.0.0, 1.6.0)
  • Settings: Read configuration file with .yaml suffix (#10909, 2.0.0, 1.6.0, 1.5.3)
  • Discovery: Prevent over allocation for multicast ping request (#10896, 2.0.0, 1.6.0)
  • Java API: Deprecate async replication (#10642, 1.6.0)
  • Test: enable scripts on demand via annotation and randomize default script settings (#10303, 2.0.0, 1.6.0)
  • Mapping: add an assertion to verify consistent serialization (#10472, 2.0.0, 1.6.0)
  • Java API: Adding setters or making them public in ActionRequests (#8123, 2.0.0)
  • Parent/Child: Refactoring improve memory consumption and query execution (#6511, 2.0.0)

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