[MDEV-20172] Fix for thread and client getting stuck after a BF ABORT Created: 2019-07-25  Updated: 2019-09-17  Resolved: 2019-09-17

Status: Closed
Project: MariaDB Server
Component/s: Server, wsrep
Affects Version/s: 10.4
Fix Version/s: 10.4.9

Type: Bug Priority: Major
Reporter: Anel Husakovic Assignee: Jan Lindström (Inactive)
Resolution: Fixed Votes: 0
Labels: None


 Description   
  • Fixes a situation in which a thread gets BF aborted and does not send the reply back to
    the client, even though the connection is still alive. That caused
    both sides to hang waiting for the next message. Now we explicitly
    check that the connection is still alive when deciding whether to reply.
  • MTR test for the above.
  • Replaced thd->killed assignments to thd->reset_kill_query where applicable.
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