新闻 WiredTiger 2.9.2 发布，MongoDB 存储引擎 下载

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。

>>>【全民狂欢，评论有礼】5月15日-31日评论每日更新的“新闻资讯和软件更新资讯”，评论点赞数超过 20 的可登上每周更新的“源资讯”和“软件周刊”两大栏目，点赞数超过 50 的还将获得 5 活跃积分奖励和开源中国定制好礼。详情
WiredTiger 2.9.2 发布，MongoDB 存储引擎下载地址