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  1. MariaDB ColumnStore
  2. MCOL-5339

DDLProc[xx]: Could not connect to pmX_WriteEngineServer: Connection refused

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Unresolved
    • 22.08.2, 22.08.4, 6.4.6, 23.02.3
    • 23.10
    • None
    • 2024-2

    Description

      In CS 6.4.x and CS 22.08.4, a customer's DDLProc stops working quickly after a few create tables and a stored procedure. Attaching what I have.

      More triage is needed.

      Theres a lot of other activity on the server thats unknown to what extent its effecting columnstore. see /var/log/messages and youll see salt-minion, docker, slapd, pam_unix,postfix, prometheus and more.

      Customers Facing Issue
      ERROR 1815 (HY000): Internal error: Lost connection to DDLProc

      MariaDB [test]> CREATE TABLE `t1` (
      		 
      -> `id` int(11) NOT NULL
      		 
      -> ) ENGINE=Columnstore ;
      		 
      ERROR 1815 (HY000): Internal error: Lost connection to DDLProc

      Work around is to mcsShutdown, clearShm and mcsStart.

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MCOL-5338 BRM_savesB_journal not found -timeout ?

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MCOL-5352 Truncate table failed after PrimProc restarted

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MCOL-5378 Nessus port scans crash exeMgr

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            Transition Time In Source Status Execution Times
            Roman made transition -
            Open In Progress
            		17h 15m 1
            Julien Fritsch made transition -
            In Progress Stalled
            		376d 12h 20m 1
            Julien Fritsch made transition -
            Stalled Needs Feedback
            		301d 5h 31m 1
            Julien Fritsch made transition -
            Needs Feedback Closed
            		93d 2h 48m 1

            People

              allen.herrera Allen Herrera
              allen.herrera Allen Herrera
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              Dates

                Created:
                Updated:

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