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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

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.0.8
    • 10.0.9
    • None
    • None

    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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          Transition Time In Source Status Execution Times
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            knielsen Kristian Nielsen
            knielsen Kristian Nielsen
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            Dates

              Created:
              Updated:
              Resolved:

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