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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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          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

            Ascending order - Click to sort in descending order
            dapeng dapeng huang created issue -
            dapeng dapeng huang made changes -
            Field Original Value New Value
            Description
            {code:java}
            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.
            {code}             		{code:java}
            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.
            {code}


            dapeng dapeng huang made changes -
            Affects Version/s 2.2.11 [ 23135 ]
            dapeng dapeng huang made changes -
            Component/s Core [ 11600 ]
            dapeng dapeng huang made changes -
            Description {code:java}
            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.
            {code}


            		{code:java}
            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.
            {code}


            {code:java}

              ssize_t n = write(m_write_fd, &message, sizeof(message)); // Maybe should retry on error EAGAIN
                 
            {code}
            dapeng dapeng huang made changes -
            Summary Failed to add dcb epoll Failed to add dcb to epoll set
            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.
            johan.wikman Johan Wikman made changes -
            Sprint MXS-SPRINT-63 [ 265 ]
            johan.wikman Johan Wikman made changes -
            Rank Ranked higher
            johan.wikman Johan Wikman made changes -
            Assignee markus makela [ <markus.makela ]
            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.
            markus makela markus makela made changes -
            Fix Version/s 2.2.13 [ 23146 ]
            markus makela markus makela made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            markus makela markus makela made changes -
            Status In Progress [ 3 ] In Review [ 10002 ]
            markus makela markus makela made changes -
            Resolution Fixed [ 1 ]
            Status In Review [ 10002 ] Closed [ 6 ]
            coldeyes yhs made changes -
            kss Gong Seonsik made changes -
            kss Gong Seonsik made changes -
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 88456 ] MariaDB v4 [ 138142 ]

            People

              markus makela markus makela
              dapeng dapeng huang
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              Dates

                Created:
                Updated:
                Resolved:

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