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Mysql Server Hang

Discussion in 'General Discussion' started by MesinHosting, Jan 8, 2013.

  1. MesinHosting

    MesinHosting Member

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    Hello, started on Thursday January, 8 2013 my mysql server went into hang often and i have to restart my server every 3 hours a day because if i not done that every website on my server went into mysql error connection. my mysql server application were running but not worked and also i got total 61 times email notification titled by: HANG: chkservd on xxxxx.xxxxxx.xxx (xxx.xx.xxx.xxx) and 20 more email notification titled by FAILED: mysql on xxxxx.xxxxxx.xxx (xxx.xx.xxx.xxx).

    i have try to reinstall mysql by used mysql upgrade option from WHM but it not worked, finally today i tryed to reinstall from the command line /usr/local/cpanel/scripts/mysqlup --force and its worked, at least for 6 hours my server back to normal and i dont have to restart my mysql server any more for every 3 hours.

    but the question is went i open my mysql error log by useing tail -20 /var/lib/mysql/xxx.xxxx.xxx.err

    i got line like this

    130108 9:21:22 [Note] /usr/sbin/mysqld: ready for connections.
    Version: '5.5.28-cll' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL)
    130108 9:34:28 [Warning] IP address '119.253.33.100' could not be resolved: Name or service not known
    130108 9:34:28 [Warning] IP address '119.253.33.100' could not be resolved: Name or service not known
    130108 10:43:30 [Warning] IP address '222.187.221.209' could not be resolved: Name or service not known
    130108 11:12:04 [Warning] IP address '174.139.101.162' could not be resolved: Name or service not known
    130108 11:12:04 [Warning] IP address '174.139.101.162' could not be resolved: Name or service not known

    what is this, where its come from and why this come up on my server????
    any one have idea would be very appreciated, thank you
     
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