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  1. MariaDB MaxScale
  2. MXS-3897

MaxScale crashes when executing CDC process to kafka

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.18, 2.5.17, 6.2.0
    • Fix Version/s: 2.5.18, 6.2.1
    • Component/s: cdc
    • Labels:
      None
    • Environment:
      Ubuntu - 20.04.2 LTS

      Description

      Hi Team,

      We are configuring maxscale for cdc to kafka but when we start cdc.py process , maxscale stops after sometime with the below errors:

      Note :
      ------
      Maxscale and DB both are on the same server as we are doing it in dev environment before proceeding to production.

      We are invoking the commands similar to the following for cdc:

      1. cdc.py --user=myuser --password=mypasswd --host=127.0.0.1 --port=4001 test.mytable | cdc_kafka_producer.py --kafka-broker 127.0.0.1:9092 --kafka-topic test.mytable

      Here I have attached the maxscale config & log file please check it.

      Error :

      2021-12-02 14:52:24   notice : [CDC] (avro-listener); avro-converter: new connection from [::ffff:127.0.0.1]
      alert  : MaxScale 6.1.4 received fatal signal 6. Commit ID: d358b90fc6c45c1875b5e32133b19b80bddf117d System name: Linux Release string: Ubuntu 20.04.2 LTS
       
       
      2021-12-02 14:53:30   alert  : MaxScale 6.1.4 received fatal signal 6. Commit ID: d358b90fc6c45c1875b5e32133b19b80bddf117d System name: Linux Release string: Ubuntu 20.04.2 LTS
      2021-12-02 14:53:30   alert  : Statement currently being classified: none/unknown
      nm: /lib/x86_64-linux-gnu/libc.so.6: no symbols
      nm: /lib/x86_64-linux-gnu/libc.so.6: no symbols
      alert  :   /lib/x86_64-linux-gnu/libc.so.6(epoll_wait+0x5e): ??:0
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x155): maxutils/maxbase/src/worker.cc:797
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:562
        /usr/bin/maxscale(main+0x195e): server/core/gateway.cc:2213
        /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3): ??:0
        /usr/bin/maxscale(_start+0x2e): ??:?
       
       
      2021-12-02 14:53:30   alert  : 
        /lib/x86_64-linux-gnu/libc.so.6(epoll_wait+0x5e): ??:0
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x155): maxutils/maxbase/src/worker.cc:797
        /usr/lib/x86_64-linux-gnu/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:562
        /usr/bin/maxscale(main+0x195e): server/core/gateway.cc:2213
        /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3): ??:0
        /usr/bin/maxscale(_start+0x2e): ??:?
      alert  : Writing core dump.
      

        Attachments

        1. maxscale.cnf
          2 kB
        2. maxscale.log
          53 kB
        3. syslog
          640 kB

          Activity

            People

            Assignee:
            nantti Niclas Antti
            Reporter:
            ponsuresh.pandians Pon Suresh Pandian
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              Dates

              Created:
              Updated:
              Resolved:

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