28 avril 2015

This week in Elasticsearch and Apache Lucene: Elasticsearch Core and Lucene tips

Par Michael McCandless

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

  • Internal: Refactor SSD/FileStore logic out of NodeEnvironment (#10755, 2.0.0)
  • Snapshot/Restore: remove obsolete expand_wildcards_open and <code>expand_wildcards_close options (#10744, 2.0.0)
  • Bulk: _default_ mapping should be picked up from index template during auto create index (#10762, 2.0.0, 1.6.0, 1.5.2, 1.4.5)
  • Internal: Refactor TransportShardReplicationOperationAction (#10749, 2.0.0, 1.6.0)
  • Core: Simplify IndexStore and friends (#10773, 2.0.0)
  • Startup: Use Tuple only as return value in Bootstrap (#10784, 2.0.0)
  • Mappings: Join MergeResults with <code>MergeContext since they are almost the same (#10765, 2.0.0)
  • Build: Disable security manager when running with mvn exec:exec (#10792, 2.0.0)
  • Stats: CommitStats doesn't need to allow for null values in commit user data (#10774, 2.0.0, 1.6.0)
  • Internal: change BigArrays to not extend <code>AbstractComponent (#10798, 2.0.0, 1.6.0)
  • HTTP: Ensure url path expansion only works inside of plugins (#10815, 2.0.0, 1.6.0, 1.5.2, 1.4.5)
  • Refactoring: Reduce code duplication in TransportIndexAction/<code>TransportShardBulkAction (#10819, 2.0.0)
  • Query enhancement: Enable Lucene ranking behaviour for numeric queries (#10790, 2.0.0)
  • Build: Fix to let eclipse ignore the antigun plugin in it's maven integration (#10822, 2.0.0, 1.6.0, 1.5.3)
  • Shutdown API: Remove _shutdown API (#10831, 2.0.0)
  • Circuit Breaker: Don't create a new BigArrays instance for every call of <code>withCircuitBreaking (#10800, 2.0.0, 1.6.0)
  • Backcompat: Add test for missing filter (#10842, 2.0.0, 1.6.0, 1.5.3)
  • Internal: Remove deprecated metadata cluster block level (#10779, 2.0.0)
  • Analysis: Fix wrong position number by analyze API (#10771, 2.0.0)
  • Tests: Add backward compatibility test for cluster state with blocks (#10754, 2.0.0, 1.6.0)
  • Security manager cleanups (#10844, 2.0.0)
  • Mappings: Remove dead code after previous refactorings (#10666, 2.0.0)
  • Internal: Ensure that explanation descriptions are not null on serialization (#10689, 2.0.0, 1.6.0)
  • Matched queries: Remove redundant and broken code (#10694, 2.0.0)
  • Dependencies: Upgrade to Lucene 5.2 r1675100 (#10699, 2.0.0)
  • Geo: Update tree_level and precision parameter priorities (#10679, 1.5.2)
  • Mappings: Simplified mapper lookups (#10705, 2.0.0)
  • Stats: Add CommitStats to supply information about the current commit point on shard level (#10687, 2.0.0, 1.6.0)
  • FileStore: Make getFileStore a bit more defensive (#10696, 2.0.0, 1.6.0)
  • Dependencies: Upgrade to lucene-5.2-snapshot-1675363. (#10727, 2.0.0)
  • Rest: Add more utilities for source/body handling in RestAction (#10724, 2.0.0)
  • Engine: Implement retries for ShadowEngine creation (#10688, 2.0.0, 1.6.0, 1.5.2)
  • Mappings: simplify dynamic mappings updates (#10720, 2.0.0)
  • Mappings: Restrict murmur3 field type to sane options (#10738, 2.0.0)
  • Refacotoring: refactor and cleanup transport request handling (#10730, 2.0.0)
  • Startup: Enable securitymanager (#10717, 2.0.0)
  • Remove working directory (#10672, 2.0.0)
  • Settings: validate number_of_shards/_replicas without index setting prefix (#10701, 2.0.0, 1.6.0)
  • Snapshot/Restore: Improve the error message when attempting to snapshot a closed index (#10608, 2.0.0, 1.6.0)
  • Mappings: Validate dynamic mappings updates on the master node (#10634, 2.0.0)
  • Search: Replace deprecated filters with equivalent queries (#10531, 2.0.0)
  • Geo: Fix OOM for high precision exotic shapes (#10652, 1.6.0)
  • Geo: Make GeoContext mapping idempotent (#10602, 2.0.0, 1.6.0, 1.5.2)
  • Query Template: Fix updating templates (#10526, 2.0.0, 1.6.0, 1.5.2)
  • Queries: Single value numeric queries shouldn't be handled by NumericRangeQuery (#10648, 2.0.0, 1.6.0)
  • Core: Allow rebalancing primary shards on shared filesystems (#10585, 1.6.0, 1.5.2)
  • Scripting: Added a new script construct (#10649, 2.0.0)
  • Stats: Add field stats api (#10523, 2.0.0, 1.6.0)
  • REST: Render REST errors in a structural way (#10643, 2.0.0)
  • Build: Update package repositories when creating a release (#10507, 2.0.0, 1.5.3, 1.4.5)
  • TransportClient: Ensure netty I/O thread is not blocked (#10644, 2.0.0, 1.6.0, 1.5.3)
  • Aggregations: New sampler aggregation (#10221, 2.0.0)
  • Geo Coordinates can contain more than two elements (x,y) in GeoJSON parser (#9542, 2.0.0, 1.6.0)
  • Rest: Add JSON in request body to scroll, clear scroll, and analyze API (#9076, 2.0.0)
  • Snapshot/Restore: Expand wildcards in snapshot (#9903, 2.0.0, 1.6.0)
  • Internal: Add METADATA_READ and <code>METADATA_WRITE blocks (#9203, 2.0.0, 1.6.0)
  • Cluster state: Add support for cluster state diffs (#10212, 2.0.0)
  • Java API: Added toString methods for <code>SearchRequestBuilder and CountRequestBuilder (#9944, 2.0.0, 1.6.0, 1.5.3)

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