apt-get install -y percona-toolkit

# 检查重复索引
pt-duplicate-key-checker -host=’sohu.dev.chenpeng.info’ -port=’43307′ -databases=’grape’

# 运行状态监控
pt-mysql-summary -host=’sohu.dev.chenpeng.info’ -port=’43307′ -databases=’grape’

# 在线修改表结构
pt-online-schema-change -host=’sohu.dev.chenpeng.info’ -port=’3306′ -alter “ADD COLUMN c1 INT” D=chenpeng_litchi,t=lc_operate_log -execute -print
pt-online-schema-change -host=’sohu.dev.chenpeng.info’ -port=’3306′ -alter “ENGINE=InnoDB” D=chenpeng_litchi,t=lc_operate_log -execute -print

# 格式化explain结果
mysql -hsohu.dev.chenpeng.info -P43307 grape -e”explain SELECT a.line_id,b.dnf_source FROM gp_report_advertiser_day a INNER JOIN gp_line b ON a.line_id=b.id WHERE a.data_date=’2016-04-10′ LIMIT 100″ | pt-visual-explain

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