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  1. MariaDB Server
  2. MDEV-8385

Roll back a transaction that fills up the tmp directory and don't crash the mysqld

    Details

    • Type: Task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: Storage Engine - Aria
    • Labels:
      None

      Description

      It will be good if MariaDB could detect if a running query fills up the tmp directory and if there is no free space left for some time (configurable option ? ) to roll back /cancel the transaction and to clear the created internal temp tables /Aria/ on the disk.

      Example on mysqld: Retry in 60 secs. to roll back or to cancel the query that created the temp table on the disk but to clean the temp tables before that :

      150618 2:29:24 [Warning] mysqld: Retry in 60 secs. Message reprinted in 600 secs
      150618 2:30:24 [Warning] mysqld: Disk is full writing '/mysql_tmp/#sql_2941_1.MAD' (Errcode: 28 "No space left on device"). Waiting for someone to free space... (Expect up to 60 secs delay for server to continue after freeing disk space)
      150618 2:30:24 [Warning]  Message reprinted in 600 secs
      150618 2:30:24 [Warning] mysqld: Disk is full writing '/mysql_tmp/#sql_2941_1.MAD' (Errcode: 28 "No space left on device"). Waiting for someone to free space... (Expect up to 60 secs delay for server to continue after freeing disk space)
      150618 2:30:24 [Warning] mysqld: Retry in 60 secs. Message reprinted in 600 secs
      150618 2:31:24 [ERROR] mysqld got signal 11 ;
      

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              • Assignee:
                Unassigned
                Reporter:
                ivan.stoykov@skysql.com Stoykov
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                • Created:
                  Updated: