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#!/bin/bash
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#Filename:chk_mysql.sh
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#Author:zhangjunchao
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MYSQL_SOCK="/var/lib/mysql/mysql.sock"
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MYSQL_USER='read'
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MYSQL_PASSWORD='123456'
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MYSQL_HOST='47.98.97.124'
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MYSQL_PORT='3306'
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MYSQL_Connect="/usr/bin/mysqladmin -u$MYSQL_USER -p$MYSQL_PASSWORD -h$MYSQL_HOST -P$MYSQL_PORT -S$MYSQL_SOCK"
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if [ $# -ne 1 ];then
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echo "please input one arguement"
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fi
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case $1 in
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Uptime) #查詢當前MySQL本次啓動後的運行統計時間
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result=`${MYSQL_Connect} status | cut -d ":" -f 2 | cut -d " " -f 2`
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echo $result
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;;
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Slow_queries) #查看當前慢查詢語句的個數
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result=`${MYSQL_Connect} extended-status | grep -w "Slow_queries" | cut -d "|" -f 3`
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echo $result
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;;
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Com_rollback) #執行回滾的個數
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result=`${MYSQL_Connect} extended-status | grep -w "Com_rollback" | cut -d "|" -f 3`
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echo $result
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;;
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Questions)
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result=`${MYSQL_Connect} extended-status | grep -w "Questions" | cut -d "|" -f 3`
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echo $result
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;;
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Com_commit)
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result=`${MYSQL_Connect} extended-status | grep -w "Com_commit" | cut -d "|" -f 3`
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echo $result
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;;
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Bytes_sent) #發送的字節數
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result=`${MYSQL_Connect} extended-status | grep -w "Bytes_sent" | cut -d "|" -f 3`
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echo $result
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;;
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Bytes_received) #接受的字節數
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result=`${MYSQL_Connect} extended-status | grep -w "Bytes_received" | cut -d "|" -f 3`
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echo $result
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;;
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Com_begin)
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result=`${MYSQL_Connect} extended-status | grep -w "Com_begin" | cut -d "|" -f 3`
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echo $result
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;;
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Open_tables) #查看當前打開的表數量
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result=`${MYSQL_Connect} status | cut -d ":" -f 5 | cut -d " " -f 2`
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echo $result
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;;
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Threads_connected) #查看當前打開的鏈接數量
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result=`${MYSQL_Connect} extended-status | grep -w "Threads_connected" | cut -d "|" -f 3`
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echo $result
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;;
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Threads_cached) #查看線程緩存內的線程數量
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result=`${MYSQL_Connect} extended-status | grep -w "Threads_cached" | cut -d "|" -f 3`
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echo $result
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;;
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Threads_created) #查看建立用來處理鏈接的線程數。若是Threads_created較大，可能要增長thread_cache_size值。
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result=`${MYSQL_Connect} extended-status | grep -w "Threads_created" | cut -d "|" -f 3`
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echo $result
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;;
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Threads_running) #查看激活的(非睡眠狀態)線程數
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result=`${MYSQL_Connect} extended-status | grep -w "Threads_running" | cut -d "|" -f 3`
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echo $result
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;;
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Slow_launch_threads) #查看建立時間超過slow_launch_time秒的線程數
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result=`${MYSQL_Connect} extended-status | grep -w "Slow_launch_threads" | cut -d "|" -f 3`
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echo $result
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;;
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Com_select) #查看select語句的執行數
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result=`${MYSQL_Connect} extended-status | grep -w "Com_select" |cut -d "|" -f 3`
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echo $result
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;;
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Com_insert) #查看insert語句的執行數
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result=`${MYSQL_Connect} extended-status | grep -w "Com_insert" |cut -d "|" -f 3`
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echo $result
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;;
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Com_update) #查看update語句的執行數
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result=`${MYSQL_Connect} extended-status | grep -w "Com_update" | cut -d "|" -f 3`
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echo $result
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;;
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Com_delete) #查看delete語句的執行數
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result=`${MYSQL_Connect} extended-status | grep -w "Com_delete" | cut -d "|" -f 3`
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echo $result
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;;
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Connections) #查看試圖鏈接到MySQL(無論是否鏈接成功)的鏈接數
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result=`${MYSQL_Connect} extended-status | grep -w "Connections" | cut -d "|" -f 3`
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echo $result
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;;
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Table_locks_immediate) #查看當即得到的表的鎖的次數
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result=`${MYSQL_Connect} extended-status | grep -w "Table_locks_immediate" | cut -d "|" -f 3`
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echo $result
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;;
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Table_locks_waited) #查看不能當即得到的表的鎖的次數。若是該值較高，而且有性能問題，你應首先優化查詢，而後拆分表或使用複製
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result=`${MYSQL_Connect} extended-status | grep -w "Table_locks_waited" | cut -d "|" -f 3`
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echo $result
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;;
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*)
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echo "Usage:$0(Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin)"
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;;
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esac
