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  1. MariaDB MaxScale
  2. MXS-1109

Routing many prepares statements gives "#HY000Lost connection to backend server"

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 2.0.3
    • 2.1.1
    • mariadbbackend
    • None
    • Linux CentOS 6.8, MySQL 5.6.19, php 5.3.3
    • 2017-27, 2017-28, 2017-29

    Description

      We have in production one max scale, routing and connection pooling queries between one web portal and a mysql server.

      When running multiple prepare statements in parallell on the web-portal, maxscale closes the client connection with "#HY000Lost connection to backend server".
      Tcpdump-ing the connections shows that the mysql-server replies correctly, but maxscale closes the client connection with "lost connection".
      This causes the web-client session to fail.

      Attachments

        1. tcpstream30-31.pcap
          345 kB
        2. maxscale2.log.gz
          415 kB
        3. maxscale.cnf
          2 kB

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              markus makela markus makela
              sjalilund Johan Nilsson
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              Dates

                Created:
                Updated:
                Resolved:

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