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:

#!/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 0

php实例代码,代码如下:
check_rep.php：

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：

/* 

 * 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：

//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。