Elasticsearch 6.0.1发布，分布式搜索引擎

Elasticsearch 6.0.1 已发布，Elasticsearch 是一个分布式的 RESTful 风格的搜索和数据分析引擎。

重要改变

Scroll

• Fail queries with scroll that explicitely set request_cache #27342

改进

Core

• Fix classes that can exit #27518

Discovery

• Stop responding to ping requests before master abdication #27329 (issue: #27328)

Plugin Repository S3

• Remove S3 output stream #27280 (issue: #27278)

• Update to AWS SDK 1.11.223 #27278

Search

• fix unnecessary logger creation #27349

Sequence IDs

• Log primary-replica resync failures #27421 (issues: #24841, #27418)

Snapshot/Restore

• Remove XContentType auto detection in BlobStoreRepository #27480

Bug 修复

Cluster

• Properly format IndexGraveyard deletion date as date #27362

Core

• Do not set data paths on no local storage required #27587 (issue: #27572)

• Ensure threadcontext is preserved when refresh listeners are invoked #27565

• Avoid NPE when getting build information #27442

• When building Settings do not set SecureSettings if empty #26988 (issue: #316)

Engine

• Reset LiveVersionMap on sync commit #27534 (issue: #27516)

• Carry over version map size to prevent excessive resizing #27516 (issue: #20498)

Inner Hits

• Return an empty _source for nested inner hit when filtering on a field that doesn’t exist #27531

Mapping

• Fix dynamic mapping update generation. #27467

• Fixed rounding of bounds in scaled float comparison #27207 (issue: #27189)

Nested Docs

• Ensure nested documents have consistent version and seq_ids #27455

Network

• Throw UOE from compressible bytes stream reset #27564 (issue: #24927)

• Bubble exceptions when closing compressible streams #27542 (issue: #27540)

Plugin Lang Painless

• Painless: Fix errors allowing void to be assigned to def. #27460 (issue: #27210)

Plugin Repository GCS

• Create new handlers for every new request in GoogleCloudStorageService #27339 (issue: #27092)

Recovery

• Flush old indices on primary promotion and relocation #27580 (issue: #27536)

Reindex API

• Reindex: Fix headers in reindex action #26937 (issue: #22976)

Search

• Fix profiling naming issues #27133

Sequence IDs

• Fix resync request serialization #27418 (issue: #24841)

Snapshot/Restore

• Do not swallow exception in ChecksumBlobStoreFormat.writeAtomic() #27597

• Delete shard store files before restoring a snapshot #27476 (issues: #20220, #26865)

• Fix snapshot getting stuck in INIT state #27214 (issue: #27180)

• Fix default value of ignore_unavailable for snapshot REST API (#25359) #27056 (issue: #25359)

• Do not create directory on readonly repository (#21495) #26909 (issue: #21495)

升级

Plugin Discovery EC2

• Upgrade AWS SDK Jackson Databind to 2.6.7.1 #27361 (issues: #27278, #27359)

Plugin Discovery GCE

• Update Google SDK to version 1.23.0 #27381 (issue: #26636)

下载地址：

• https://www.elastic.co/downloads/elasticsearch