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High CPU usage on linux server by [sync_supers]

Discussion in 'Workarounds and Optimization' started by Ali EB, Nov 18, 2014.

  1. Ali EB

    Ali EB Registered

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    Hello,
    our server has 8 cores
    and the cpu usage is 0.2 to 4.0 when we lunch it for the first time - restart-
    but after 24 to 48 hours

    the process goes up to 10 to 40 sometimes
    on WHM we found the the current process that takes most cpu are [sync_supers]

    there are like 7 of them and all of them are by nobody and using over 70% cpu each.
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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  3. Skamasle

    Skamasle Member

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    hi that topic is for server monitoring, the problem here is a alot of process from sync:

    13550 nobody 20 0 33484 3576 1076 R 62.0 0.0 2360:06 [sync_supers]
    8425 nobody 20 0 33484 3580 1076 R 58.0 0.0 2441:53 [sync_supers]
    19186 nobody 20 0 33488 3576 1072 R 58.0 0.0 8092:59 [sync_supers]
    11527 nobody 20 0 33488 3568 1072 R 57.4 0.0 4857:19 [sync_supers]
    16569 nobody 20 0 33488 3580 1076 R 54.7 0.0 4312:15 [sync_supers]
    28839 nobody 20 0 33488 3572 1072 R 53.8 0.0 3321:49 [sync_supers]
    13923 nobody 20 0 33488 3580 1076 R 53.1 0.0 2360:13 [sync_supers]
    14308 nobody 20 0 33488 3572 1076 R 50.5 0.0 24055:35 [sync_supers]
    14007 nobody 20 0 33488 3576 1076 R 50.1 0.0 4394:17 [sync_supers]
    25882 nobody 20 0 33492 3568 1064 R 49.8 0.0 11921:13 [sync_supers]
    28842 nobody 20 0 33488 3572 1072 R 49.8 0.0 3304:25 [sync_supers]
    32737 nobody 20 0 33488 3572 1072 R 49.8 0.0 1869:51 [sync_supers]
    12408 nobody 20 0 33484 3556 1064 R 49.5 0.0 17964:51 [sync_supers]
    12576 nobody 20 0 33488 3572 1072 R 49.5 0.0 1431:04 [sync_supers]


    Is a [sync_supers] process a cpanel process or is a malware, the strace of a process is a time out:

    elect(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
    select(8, [3], NULL, NULL, {0, 0}) = 0 (Timeout)
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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