Percona Toolkit 2.2.9 发布_MySQL
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Percona Toolkit 2.2.9 发布，此版本现已提供下载，同时也提供在Percona 软件库。此版本是当前 2.2 系列的 GA 稳定版。
Bugs 修复：
Fixed bug 1258135: pt-deadlock-logger introduces a noise to MySQL
Fixed bug 1329422: pt-online-schema-change foreign-keys-method=none breaks constraints
Fixed bug 1315130: pt-online-schema-change not properly detecting foreign keys
Fixed bug 1335960: pt-query-digest cannot parse binlogs from 5.6
Fixed bug 1335322: pt-stalk fails when variable or threshold is non-integer
更多更新内容请看发行说明。
Percona Toolkit 是一组高级的命令行工具，用来管理 MySQL 和系统任务，主要包括：
验证主节点和复制数据的一致性
有效的对记录行进行归档
找出重复的索引
总结 MySQL 服务器
从日志和 tcpdump 中分析查询
问题发生时收集重要的系统信息
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