Type:
Bug
Priority:
Blocker
Resolution:
Fixed
Affects Version/s:
10.1(EOL) , 10.2(EOL) , 10.3(EOL) , 10.4(EOL) , 10.5
When a SQL KILL statement is requesting a transaction to be aborted at the same time when the same transaction is chosen as a victim in the Galera transaction certification process, the server can hang.
There have been attempts to fix this problem earlier. A suggested fix for MDEV-18464 had been pushed and soon thereafter reverted because of issues. Another fix (which adds another field to THD , expanding the potential state space) was pushed to 10.4 and 10.5 in MDEV-21910 , but it fails to prevent such hangs.
It seems possible that something related to this caused MDEV-17092 , which I had worked around by changing the code in InnoDB.
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