Percona Toolkit 2.2.2 主要是 bug 修复，包括：
pt-archiver -bulk-insert may corrupt data
pt-heartbeat -utc -check always returns 0
pt-query-digest 2.2 prints unwanted debug info on tcpdump parsing errors
pt-query-digest 2.2 prints too many string values
Some tools don’t have -help or -version
Some tools use @@hostname without /*!50038*/
pt-stalk prints the wrong variable name in verbose mode when -function is used
And more
完整记录请看 https://launchpad.net/percona-toolkit/+milestone/2.2.2
来自:开源中国社区
