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  1. MariaDB MaxScale
  2. MXS-209

MaxScale received fatal signal 11. Attempting backtrace.

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 1.1.1
    • Fix Version/s: 1.2.0
    • Component/s: mariadbmon
    • Labels:
      None

      Description

      Hi,

      I have maxscale server installed with version 1.1.1 release 2.

      The problem is crashing of maxscale service with the following output:

      2015-06-17 12:20:06 Fatal: MaxScale received fatal signal 11. Attempting backtrace.
      2015-06-17 12:20:06 /usr/local/mariadb-maxscale/bin/maxscale() [0x54979c]
      2015-06-17 12:20:06 /lib64/libpthread.so.0() [0x33b960f710]
      2015-06-17 12:20:06 /lib64/libc.so.6() [0x33b92371b2]
      2015-06-17 12:20:06 /usr/local/mariadb-maxscale/modules/libmysqlmon.so(+0x26f4) [0x7ff2241eb6f4]
      2015-06-17 12:20:06 /usr/local/mariadb-maxscale/modules/libmysqlmon.so(+0x2980) [0x7ff2241eb980]
      2015-06-17 12:20:06 /lib64/libpthread.so.0() [0x33b96079d1]
      2015-06-17 12:20:06 /lib64/libc.so.6(clone+0x6d) [0x33b92e8b5d]

      Earlier it worked fine, just noticed this problem after some permission changes for maxscale user on backend mysql server. Reverting/recreation of user permissions doesn't help.

      Also mysql client is installed
      Name : mysql
      Arch : x86_64
      Version : 5.1.73
      Release : 3.el6_5

      What might be the reason of that?

      Maxscale.cnf content

      [maxscale]
      threads=4
      enable_root_user=1

      [MySQL Monitor]
      type=monitor
      module=mysqlmon
      servers=zzz
      user=zzz
      passwd=zzz
      monitor_interval=10000

      [qla]
      type=filter
      module=qlafilter
      options=/tmp/QueryLog

      [fetch]
      type=filter
      module=regexfilter
      match=fetch
      replace=select

      [Read Connection Router]
      type=service
      router=readconnroute
      servers=zzz
      user=zzz
      passwd=zzz
      router_options=slave

      [Debug Interface]
      type=service
      router=debugcli

      [Debug Listener]
      type=listener
      service=Debug Interface
      protocol=telnetd
      port=4442

      [CLI]
      type=service
      router=cli

      [CLI Listener]
      type=listener
      service=CLI
      protocol=maxscaled
      port=6603

      [Read Connection Listener]
      type=listener
      service=Read Connection Router
      protocol=MySQLClient
      port=3306
      socket=/tmp/readconn.sock

      [zzz]
      type=server
      address=<address>
      port=3306
      protocol=MySQLBackend

      Regards
      Sergey

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              Assignee:
              markus makela markus makela
              Reporter:
              szemlyanoy Sergey
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                Updated:
                Resolved:

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