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  1. Percona Server for MySQL
  2. PS-5193

TRACE logs on 56-5.6.42-rel84.2.el6.x86_64 (possible due to tokudb?)

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    Details

    • Type: Bug
    • Status: Done
    • Priority: High
    • Resolution: Duplicate
    • Affects Version/s: 5.6.42-84.2
    • Fix Version/s: None
    • Component/s: TokuDB
    • Labels:
      None
    • Environment:

      EL7 with all updates

      Description

      We run several Percona Server instances. They were updated from 56-5.6.41-rel84.1.el6.x86_64 to 56-5.6.42-rel84.2.el6.x86_64 and immediately all servers that also have tokudb installed are flooding huge amounts (few GB/hour) of TRACE events to mysqld.log, example:

      TRACE: <CAPTURE> Releasing file range lock() with fd =  19
      TRACE: <INTERPOSE> write() intercepted, fd =  19
      TRACE: <CAPTURE> entering write() with fd =  19
      TRACE: <CAPTURE> Grabbing file range lock() with fd =  19
      TRACE: <CAPTURE> Releasing file range lock() with fd =  19
      TRACE: <INTERPOSE> write() intercepted, fd =  19
      TRACE: <CAPTURE> entering write() with fd =  19
      TRACE: <CAPTURE> Grabbing file range lock() with fd =  19
      TRACE: <CAPTURE> Releasing file range lock() with fd =  19
      TRACE: <INTERPOSE> write() intercepted, fd =  19
      TRACE: <CAPTURE> entering write() with fd =  19
      TRACE: <CAPTURE> Grabbing file range lock() with fd =  19
      TRACE: <CAPTURE> Releasing file range lock() with fd =  19
      TRACE: <INTERPOSE> write() intercepted, fd =  19
      TRACE: <CAPTURE> entering write() with fd =  19
      

      Otherwise the server configurations are very similar between servers that log TRACE and servers that do not; I suspect the main issue is the presence of:
      Percona-Server-tokudb-56-5.6.42-rel84.2.el6.x86_64

      Other components on servers without the issue:
      Percona-Server-shared-56-5.6.42-rel84.2.el6.x86_64
      Percona-Server-client-56-5.6.42-rel84.2.el6.x86_64
      Percona-Server-server-56-5.6.42-rel84.2.el6.x86_64

       

      Config files could be given in private if needed.

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                Assignee:
                Unassigned
                Reporter:
                v__o Ville Ojamo
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                  Dates

                  Created:
                  Updated:
                  Resolved: