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Mysql is very Slow

Discussion in 'Database Discussion' started by musioc, Nov 16, 2014.

  1. musioc

    musioc Well-Known Member

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    Hello
    We use a cPanel server with bellow details:
    8 core cpu, 48G Ram, HDD SATA2 Enterprise, Load avg : 5
    cPanel 11.46, mysql 5.6.16-cll-lve, cloudlinux (cagefs, db_governor), x86_64

    Recently Websites speed become very slow, They take at least 10 seconds to respond. (other servers respond less than 1 second)
    Static files and pages (php, html, ...) without mysql connection are very fast.

    I checked many things, but problem persists yet.
    I can not find any slow query in slow.log for websites that have problem.
    But these are some slow queries that were run as root:
     
    #1 musioc, Nov 16, 2014
    Last edited: Nov 17, 2014
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
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  3. musioc

    musioc Well-Known Member

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    Thank you for your reply
    I don't know what is the problem, It is very strange problem.

    Some sites (even with mysql connection) loads very fast and some loads very slow.

    This command take about 10 ~ 20 seconds to run (mysql command):
    I think information_schema is the reason.
     
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