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  1. MariaDB MaxScale
  2. MXS-1983

Failed to add dcb to epoll set

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 2.2.11
    • 2.2.13
    • Core
    • None
    • MXS-SPRINT-63

    Description

      2018-07-18 17:54:57   error  : (1) Failed to write message: 11, Resource temporarily unavailable
      		 
      2018-07-18 17:54:57   error  : (1) Could not post task to add DCB to worker.
      		 
      2018-07-18 17:54:57   error  : (1) [mariadbclient] Failed to add dcb 0x7f74606da970 for fd 1897 to epoll set.


       
      		 
        ssize_t n = write(m_write_fd, &message, sizeof(message)); // Maybe should retry on error EAGAIN

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MXS-2235 Failed to add dcb to epoll set

          • Major - Major loss of function.
          • Closed

          Activity

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            markus makela markus makela added a comment -

            This might be a side-effect of MXS-1948.

            markus makela markus makela added a comment - This might be a side-effect of MXS-1948 .
            markus makela markus makela added a comment -

            A patch to this is on the MXS-1983 branch on GitHub.

            markus makela markus makela added a comment - A patch to this is on the MXS-1983 branch on GitHub.
            markus makela markus makela added a comment -

            Possibly fixed with:

            [markusjm@localhost core]$ sudo sysctl -w fs.pipe-max-size=33554432
            		 
            fs.pipe-max-size = 33554432

            markus makela markus makela added a comment - Possibly fixed with: [markusjm@localhost core]$ sudo sysctl -w fs.pipe-max-size=33554432 fs.pipe-max-size = 33554432
            markus makela markus makela added a comment - - edited

            Appears to be fixed by increasing pipe buffer size. For the sake of improving the chances of the problem not appearing, the "smart" retrying should be incorporated with minor changes.

            markus makela markus makela added a comment - - edited Appears to be fixed by increasing pipe buffer size. For the sake of improving the chances of the problem not appearing, the "smart" retrying should be incorporated with minor changes.

            People

              markus makela markus makela
              dapeng dapeng huang
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              Dates

                Created:
                Updated:
                Resolved:

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