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  1. MariaDB Server
  2. MDEV-5789

race between rpl_parallel_change_thread_count and slave start upon server start without --skip-slave-start

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: 10.0.8
        • Fix Version/s: 10.0.9
        • Component/s: None
        • Labels:
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          Description

          Reported on maria-developers@ by nanyi607rao:

          Second is in rpl_parallel_change_thread_count()

          I think it need add mysql_cond_broadcast(&pool->COND_rpl_thread_pool) after all new threads are ok, this is for
          the case that skip_slave_start=OFF,then SQL thread would start automaticlly, it could wait forever in rpl_parallel_thread_pool::get_thread(), because SQL thread may reach this function before another thread reach the rpl_parallel_change_thread_count().

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                  • Assignee:
                    knielsen Kristian Nielsen
                    Reporter:
                    knielsen Kristian Nielsen
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                    • Created:
                      Updated:
                      Resolved: