发布于 2017-05-27 23:22:41 | 72 次阅读 | 评论: 0 | 来源: 网友投递
WiredTiger NoSQL 存储引擎
WiredTiger 是一个开源的、高性能、可伸缩的 NoSQL 数据存储引擎。
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
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