php在linux下检测mysql同步状态的方法

本文实例讲述了php在linux下检测mysql同步状态的方法。分享给大家供大家参考。具体分析如下：

这里通过两个实例来介绍mysql同步状态检测实现方法。代码如下:复制代码 代码如下:#!/bin/sh     #check MySQL_Slave Status  #crontab time 00:10  MYSQL_USER="root" MYSQL_PWD="123456" MYSQL_SLAVE_LOG="/tmp/check_mysql_slave.log" EMAIL="1351010****@139.com"    MYSQL_PORT=`netstat -na|grep "LISTEN"|grep "3306"|awk -F[:" "]+ "{print $5}"`  MYSQL_IP=`ifconfig eth0|grep "inet addr" | awk -F[:" "]+ "{print $4}"`  MYSQL_SLAVE_STATUS=$(/usr/local/webserver/mysql/bin/mysql -u root -psylc23hua -S /tmp/mysql.sock -e  "show slave statusG" | grep -i "running")  IO_ENV=`echo $MYSQL_SLAVE_STATUS | grep IO | awk " {print $2}"`  SQL_ENV=`echo $MYSQL_SLAVE_STATUS | grep SQL | awk "{print $2}"`  NOW=$(date -d today +"%Y-%m-%d %H:%M:%S")     if [ "$MYSQL_PORT" = "3306" ];then   echo "mysql is running!" else   mail -s "warn!server: $MYSQL_IP mysql is down" "$EMAIL" fi    if [ "$IO_ENV" = "Yes" -a "$SQL_ENV" = "Yes" ];then   echo "Slave is running!" else   echo "[ $NOW ] Slave is not running!" >> "$MYSQL_SLAVE_LOG"   cat "$MYSQL_SLAVE_LOG" | mail -s "WARN! ${MySQL_IP}_replicate_error" "$EMAIL" fi    exit 0php实例代码,代码如下:check_rep.php：复制代码 代码如下:if(emptyempty($_REQUEST["key"])) die(":) missing key"); if($_REQUEST["key"] != "xupeng") die(":) error key");  include("mysql_instance.php"); include("check_status_api.php");  define("USERNAME", "用户名"); define("PASSWORD", "密码"); define("DEBUGMODE", false);  $instances = get_instances();  if($instances){  echo <<  <!-- 30分钟自动刷新 -->  END;  echo " n";  if(!DEBUGMODE){   echo " n";  }else{   echo " n";  }  foreach($instances as $host){   $res = check_mysql_replication_status($host, USERNAME, PASSWORD);   if(!DEBUGMODE){    switch($res["result"]){     case -4:      $memo = "未知异常";      break;     case -3:      $memo = "查询失败";      break;     case -2:      $memo = "无法连接端口";      break;     case -1:      $memo = "状态未知";      break;     case 0:      $memo = "OK";      break;     case 1:      $memo = "同步失败";      if($res["Slave_IO_Running"] <> "Yes"){       $memo .= $res["Last_IO_Error"] . "(" .  $res  ["Last_IO_Errno"] . ")";      }      if($res["Slave_SQL_Running"] <> "Yes"){       $memo .= $res["Last_SQL_Error"] . "(" .  $res  ["Last_SQL_Errno"] . ")";      }      break;     case 2:      $memo = "数据库未设置同步";      break;    }    echo "  n";   }else{    echo "  n";   }  }  echo " <table border=""> <tbody> <tr> <td>instance</td> <td>result</td> <td>Slave_IO_Running</td> <td>Slave_SQL_Running</td> <td>Master_Host</td> <td>Master_Port</td> <td>Replicate_Do_DB</td> <td>memo</td> </tr> <tr> <td>instance</td> <td>result</td> <td>Slave_IO_Running</td> <td>Slave_SQL_Running</td> <td>Master_Host</td> <td>Master_Port</td> <td>Replicate_Do_DB</td> <td>Slave_IO_State</td> <td>Last_IO_Errno</td> <td>Last_IO_Error</td> <td>Last_SQL_Errno</td> <td>Last_SQL_Error</td> </tr> <tr> <td>{$host}</td> <td>{$res["result"]}</td> <td>{$res["Slave_IO_Running"]}</td> <td>{$res["Slave_SQL_Running"]}</td> <td>{$res["Master_Host"]}</td> <td>{$res["Master_Port"]}</td> <td>{$res["Replicate_Do_DB"]}</td> <td>{$memo}</td> </tr> <tr> <td>{$host}</td> <td>{$res["result"]}</td> <td>{$res["Slave_IO_Running"]}</td> <td>{$res["Slave_SQL_Running"]}</td> <td>{$res["Master_Host"]}</td> <td>{$res["Master_Port"]}</td> <td>{$res["Replicate_Do_DB"]}</td> <td>{$res["Slave_IO_State"]}</td> <td>{$res["Last_IO_Errno"]}</td> <td>{$res["Last_IO_Error"]}</td> <td>{$res["Last_SQL_Errno"]}</td> <td>{$res["Last_SQL_Error"]}</td> </tr> </tbody> </table> n";  echo <<  END; }else{  die("no mysql instances defined."); }check_status_api.php：复制代码 代码如下:/*  * 检查mysql服务器的同步状态  */ function check_mysql_replication_status($host, $username, $password) {  //默认状态未知  $r = array(   "result" => -1   );  try{   $dbh = @mysql_connect($host, $username, $password);   if(!$dbh){    //无法连接    $r["result"] = -2;    return($r);   }   $query = "SHOW SLAVE STATUS";   $res = @mysql_query($query, $dbh);   $err = @mysql_error();   if($err){    //无法连接    $r["result"] = -3;    return($r);   }   $row = mysql_fetch_array($res);   $r = $row;   if(($r["Slave_IO_Running"] == "Yes") && ($r["Slave_SQL_Running"] == "Yes"))   {    $r["result"] = 0;   }else{    if(!emptyempty($row)){     $r["result"] = 1;    }else{     $r["result"] = 2;    }   }  }catch(Exception $e){   $r["result"] = -4;  }  return($r); }mysql_instance.php：复制代码 代码如下://GRANT REPLICATION CLIENT ON *.* TO "用户名"@"监控主机ip" IDENTIFIED BY "密码";  $mysql_instances =  array();  $mysql_instances[] = "远程ip:端口"; 

function get_instances()  {    global $mysql_instances;    return $mysql_instances;   }将以上三个PHP文件放在虚拟目录中,然后通过URL访问.

访问方式：http://ip/check_repl.php?key=xupeng

希望本文所述对大家的php程序设计有所帮助。