ElasticSearch 1.5.1 发布分布式搜索引擎

ElasticSearch 1.5.1 发布，下载地址：https://github.com/elastic/elasticsearch/archive/v1.5.1.zip

此版本主要更改信息如下：

Core:
- Core: Lucene merges should run on the target shard during recovery #10463 (issue:#9226)
Engine:
- Sync translog before closing engine #10484
Geo:
- Fix validate_* merge policy for GeoPointFieldMapper #10165 (issue: #10164)
Inner Hits:
- Make sure size=0 works on the inner_hits level. #10388 (issue: #10358)
- Make sure inner hits also work for nested fields defined in object field #10353 (issue:#10334)
- Fix bug where parse error is thrown if a inner filter is used in a nested filter/query. #10309(issue: #10308)
- Fix nested stored field support. #10235 (issue: #9766)
Internal:
- Bugfix+unittest for unneccesary mapping refreshes caused by unordered fielddata settings #10370 (issue: #10318)
- Don’t try to send a mapping refresh if there is no master #10311 (issue: #10283)
Mapping:
- Fix _field_names to be disabled on pre 1.3.0 indexes #10268 (issue: #9893)
Network:
- Transport: fix racing condition in timeout handling #10220 (issue: #10187)
Parent/Child:
- Children aggregation: Fix 2 bugs in children agg #10263 (issues: #10158, #9544,#9958)
Percolator:
- Fix wrong use of currentFieldName outside of a parsing loop #10307
Query DSL:
- Avoid NPE during query parsing #10333
- Function score: apply min_score to sub query score if no function provided #10326 (issue:#10253)
- Function_score: undo “Remove explanation of query score from functions” #9826
Recovery:
- State: Refactor state format to use incremental state IDs #10316
- Recovery: RecoveryState.File.toXContent reports file length as recovered bytes #10310
- Fail shard when index service/mappings fails to instantiate #10283
Snapshot/Restore:
- Don’t reuse source index UUID on restore #10367
- Snapshot/Restore: separate repository registration #10354 (issue: #10351)
- Automatically add “index.” prefix to the settings are changed on restore… #10269 (issue:#10133)