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check_mysql_repl.php
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check_mysql_repl.php
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<?php
error_reporting(E_USER_WARNING | E_USER_NOTICE);
header("Content-type:text/html;charset=utf-8;");
ini_set('date.timezone','Asia/Shanghai');
require 'conn.php';
include 'filter_array.php';
include 'mail/mail.php';
include 'weixin/weixin.php';
//mysqli_query($con,"truncate mysql_repl_status");
$result1 = mysqli_query($con,"select ip,dbname,user,pwd,port,monitor,send_mail,send_mail_to_list,send_weixin,send_weixin_to_list,alarm_repl_status,threshold_warning_repl_delay from mysql_status_info");
$r=$re=array();
$sqls= array(
"SHOW SLAVE STATUS",
"SHOW GLOBAL VARIABLES WHERE variable_name REGEXP 'server_id$|^read_only'"
);
while( list($ip,$dbname,$user,$pwd,$port,$monitor,$send_mail,$send_mail_to_list,$send_weixin,$send_weixin_to_list,$alarm_repl_status,$threshold_warning_repl_delay) = mysqli_fetch_array($result1))
{
if($monitor==0 || empty($monitor)){
echo "\n被监控主机：$ip 【{$dbname}库】未开启监控，跳过不检测。"."\n";
continue;
}
$all_links = array();
foreach ($sqls as $sql) {
$link1 = mysqli_init();
$link1->options(MYSQLI_OPT_CONNECT_TIMEOUT, 5);
if(! $link1->real_connect($ip,$user,$pwd,$dbname,$port)){
$connect_error='down';
break;
}
if(! $link1->query($sql, MYSQLI_ASYNC)){
break;
}
$all_links[]=$link1;
}
$processed = 0;
do {
$links = $errors = $reject = array();
foreach ($all_links as $link) {
$links[] = $errors[] = $reject[] = $link;
}
if (!mysqli_poll($links, $errors, $reject, 1)) {
continue;
}
foreach ($links as $link) {
if ($result = $link->reap_async_query()) {
while($row = $result->fetch_assoc()){
$r[$row['Variable_name']] = $row['Value'];
unset($row['Variable_name'],$row['Value']);
array_push($re,$row);
}
array_push($re,$r); //组成一个大的二维数组
if (is_object($result)){
mysqli_free_result($result);
}
} else die(sprintf("MySQLi Error: %s", mysqli_error($link)));
$processed++;
}
} while ($processed < count($all_links));
echo "---------------------------"."\n";
//print_r(array_values(array_filter(filter_array($re)))); //调试
$re=array_values(array_filter(filter_array($re)));
//1为Primary，0为Secondary
$role=!isset($re[0]['Slave_IO_State'])?1:0;
$gtid=$re[0]['Auto_Position']==1?'ON':'OFF';
echo "角色是:".$role_status=$role==1?'Primary'.PHP_EOL:'Secondary'.PHP_EOL;
$is_live=isset($connect_error)?0:1;
//echo $is_live."\n";
$Last_IO_Error=preg_replace('/\'/', '', $re[0]['Last_IO_Error']);
$Last_SQL_Error=preg_replace('/\'/', '', $re[0]['Last_SQL_Error']);
if($is_live==0){
echo "$ip"."\n";
echo $connect_error."\n";
unset($connect_error);
$sql = "INSERT INTO mysql_repl_status(host,dbname,port,role,is_live) VALUES('{$ip}','{$dbname}','{$port}','{$role}','{$is_live}')";
} else {
//同步状态监控
if($re[0]['Slave_IO_Running']=='No' || $re[0]['Slave_SQL_Running']=='No' ){
echo "【报错】主从同步复制Slave_IO_Running状态是：{$re[0]['Slave_IO_Running']}; Slave_SQL_Running状态是：{$re[0]['Slave_SQL_Running']}\n";
//告警---------------------
if($send_mail==0 || empty($send_mail)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭邮件监控报警。"."\n";
} else {
$alarm_subject = "【报错】被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步复制异常 ".date("Y-m-d H:i:s");
$alarm_info = "被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步复制Slave_IO_Running状态是：{$re[0]['Slave_IO_Running']}; Slave_SQL_Running状态是：{$re[0]['Slave_SQL_Running']}";
$sendmail = new mail($send_mail_to_list,$alarm_subject,$alarm_info);
$sendmail->execCommand();
}
if($send_weixin==0 || empty($send_weixin)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭微信监控报警。"."\n";
} else {
$alarm_subject = "【报错】被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步复制异常 ".date("Y-m-d H:i:s");
$alarm_info = "被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步复制Slave_IO_Running状态是：{$re[0]['Slave_IO_Running']}; Slave_SQL_Running状态是：{$re[0]['Slave_SQL_Running']}";
$sendweixin = new weixin($send_weixin_to_list,$alarm_subject,$alarm_info);
$sendweixin->execCommand();
}
if(($send_mail==1 || $send_weixin==1)){
$update_slave_status = "UPDATE mysql_status_info SET alarm_repl_status = 1 WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}'";
mysqli_query($con, $update_slave_status);
}
} else {
//恢复---------------------
if($send_mail==0 || empty($send_mail)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭邮件监控报警。"."\n";
}
if($send_weixin==0 || empty($send_weixin)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭微信监控报警。"."\n";
}
if(($send_mail==1 || $send_weixin==1)){
$recover_repl_status_sql = "SELECT alarm_repl_status FROM mysql_status_info WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}' ";
$recover_repl_status = mysqli_query($con, $recover_repl_status_sql);
$recover_repl_status_row = mysqli_fetch_assoc($recover_repl_status);
}
if(!empty($recover_repl_status_row['alarm_repl_status']) && $recover_repl_status_row['alarm_repl_status'] == 1 ){
$recover_subject = "【恢复】被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步复制已恢复 ".date("Y-m-d H:i:s");
$recover_info = "主从同步复制Slave_IO_Running状态是：{$re[0]['Slave_IO_Running']}; Slave_SQL_Running状态是：{$re[0]['Slave_SQL_Running']}";
if($send_mail==1 ){
$sendmail = new mail($send_mail_to_list,$recover_subject,$recover_info);
$sendmail->execCommand();
}
if($send_weixin==1 ){
$sendweixin = new weixin($send_weixin_to_list,$recover_subject,$recover_info);
$sendweixin->execCommand();
}
$update_repl_status_sql = "UPDATE mysql_status_info SET alarm_repl_status = 0 WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}'";
mysqli_query($con, $update_repl_status_sql);
}
} // end else Slave_IO_Running and Slave_SQL_Running
//同步延迟监控
if(!empty($threshold_warning_repl_delay) && $re[0]['Seconds_Behind_Master']>=$threshold_warning_repl_delay){
echo "【告警】 【{$dbname}库】【端口{$port}】主从同步延迟{$re[0]['Seconds_Behind_Master']}秒\n";
//告警---------------------
if($send_mail==0 || empty($send_mail)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭邮件监控报警。"."\n";
} else {
$alarm_subject = "【告警】被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步延迟 ".date("Y-m-d H:i:s");
$alarm_info = "被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步延迟{$re[0]['Seconds_Behind_Master']}秒";
$sendmail = new mail($send_mail_to_list,$alarm_subject,$alarm_info);
$sendmail->execCommand();
}
if($send_weixin==0 || empty($send_weixin)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭微信监控报警。"."\n";
} else {
$alarm_subject = "【告警】被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步延迟 ".date("Y-m-d H:i:s");
$alarm_info = "被监控主机：".$ip." 【{$dbname}库】【端口{$port}】主从同步延迟{$re[0]['Seconds_Behind_Master']}秒";
$sendweixin = new weixin($send_weixin_to_list,$alarm_subject,$alarm_info);
$sendweixin->execCommand();
}
if(($send_mail==1 || $send_weixin==1)){
$update_slave_status = "UPDATE mysql_status_info SET alarm_repl_status = 3 WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}'";
mysqli_query($con, $update_slave_status);
}
}
else {
//恢复---------------------
if($send_mail==0 || empty($send_mail)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭邮件监控报警。"."\n";
}
if($send_weixin==0 || empty($send_weixin)){
echo "被监控主机：$ip 【{$dbname}库】【端口{$port}】关闭微信监控报警。"."\n";
}
if(($send_mail==1 || $send_weixin==1)){
$recover_repl_status_sql = "SELECT alarm_repl_status FROM mysql_status_info WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}' ";
$recover_repl_status = mysqli_query($con, $recover_repl_status_sql);
$recover_repl_status_row = mysqli_fetch_assoc($recover_repl_status);
}
if(!empty($recover_repl_status_row['alarm_repl_status']) && $recover_repl_status_row['alarm_repl_status'] == 3 ){
$recover_subject = "【恢复】被监控主机：".$ip." 【{$dbname}库】主从同步延迟已恢复 ".date("Y-m-d H:i:s");
$recover_info = "主从同步延迟{$re[0]['Seconds_Behind_Master']}秒";
if($send_mail==1 ){
$sendmail = new mail($send_mail_to_list,$recover_subject,$recover_info);
$sendmail->execCommand();
}
if($send_weixin==1 ){
$sendweixin = new weixin($send_weixin_to_list,$recover_subject,$recover_info);
$sendweixin->execCommand();
}
$update_repl_status_sql = "UPDATE mysql_status_info SET alarm_repl_status = 2 WHERE IP='{$ip}' AND dbname='{$dbname}' AND PORT='{$port}'";
mysqli_query($con, $update_repl_status_sql);
}
} // end else Seconds_Behind_Master
} // end else is_live
//---------------------------------------------------------------------------
$sql = "INSERT INTO mysql_repl_status(server_id,host,dbname,port,role,is_live,read_only,gtid_mode,Master_Host,Master_Port,Slave_IO_Running,Slave_SQL_Running,Seconds_Behind_Master,Master_Log_File,Relay_Master_Log_File,Read_Master_Log_Pos,Exec_Master_Log_Pos,Last_IO_Error,Last_SQL_Error,create_time) values('" .end($re)['server_id']. "','{$ip}','{$dbname}','{$port}','{$role}','{$is_live}','" .end($re)['read_only']. "','{$gtid}','{$re[0]['Master_Host']}','{$re[0]['Master_Port']}','{$re[0]['Slave_IO_Running']}','{$re[0]['Slave_SQL_Running']}','{$re[0]['Seconds_Behind_Master']}','{$re[0]['Master_Log_File']}','{$re[0]['Relay_Master_Log_File']}','{$re[0]['Read_Master_Log_Pos']}','{$re[0]['Exec_Master_Log_Pos']}','{$Last_IO_Error}','{$Last_SQL_Error}',now())";
if (mysqli_query($con, $sql)) {
echo "{$ip}:'{$dbname}'新记录插入成功\n";
echo "---------------------------\n\n";
mysqli_query($con,"delete from mysql_repl_status where host='{$ip}' and dbname='{$dbname}' and port='{$port}' and create_time<DATE_SUB(now(),interval 100 second)");
} else {
echo "{$ip}:'{$dbname}'新记录插入失败\n";
echo "Error: " . $sql . "\n" . mysqli_error($con);
}
//清空每个IP数据库状态值
array_splice($re, 0, count($re));
array_splice($r, 0, count($r));
} //end while
?>