WiredTiger 2.9.2 发布，MongoDB 存储引擎

内容简介：WiredTiger 2.9.2 发布，MongoDB 存储引擎

MongoDB 存储引擎 WiredTiger 2.9.2 发布了，有关详细信息，请参阅 更改日志 。有如下重要更改：

• SERVER-16796 Increase logging activity for journal recovery operations

• SERVER-28168 Cannot start or repair MongoDB after unexpected shutdown.

• SERVER-28194 Fix a bug where a missing WiredTiger.turtle file can result in data loss

• WT-98 Update the current cursor value without a search

• WT-2439 Enhance reconciliation page layout

• WT-2898 Improve performance of eviction-heavy workloads by dynamically controlling the number of eviction threads

• WT-3097 Race on reconfigure or shutdown can lead to waiting for statistics log server

• WT-3106 Add truncate support to command line wt utility

• WT-3114 Avoid archiving log files immediately after recovery

• WT-3115 Change the dhandle lock to a read/write lock

• WT-3127 Fix a bug with CPU yield calls don't necessarily imply memory barriers

• WT-3135 Fix a bug with search_near() for index with custom collator

• WT-3137 Fix a hang in __log_slot_join/__log_slot_switch_internal

• WT-3144 Fix a bug where random cursor returns not-found when descending to an empty page

• WT-3148 Improve eviction efficiency with many small trees

• WT-3149 Change eviction to start new walks from a random place in the tree

• WT-3150 Reduce impact of checkpoints on eviction server

• WT-3152 Convert table lock from a spinlock to a read write lock

• WT-3157 Fix a bug in checkpoint/transaction integrity issue when writes fail.

• WT-3158 Fix structure packing on Windows.

• WT-3188 Fix error handling in logging where fatal errors could lead to a hang

• WT-3193 Close a race between verify opening a handle and eviction visiting it

• WT-3206 Fix a bug where core dump happened on NULL page index

• WT-3218 Fix a bug that could lead to unexpected checkpoint ordering failures

• WT-3243 Reorder log slot release so joins don't wait on IO

• WT-3262 Stop making schema operations wait for cache

有关完整列表，请参阅 JIRA 更改日志： https://jira.mongodb.org/browse/WT/fixforversion/17874

下载地址：

• wiredtiger-2.9.2.tar.bz2

• Source code (zip)

• Source code (tar.gz)

WiredTiger 是一个开源的、高性能、可伸缩的 MongoDB 数据存储引擎。

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