[MDEV-38624] parallel slave may not ignore ER_CONNECTION_KILLED error - Jira

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Details

Type: Bug
Status: Closed (View Workflow)
Priority: Critical
Resolution: Fixed
Affects Version/s: 10.6, 10.11, 11.4, 11.8, 12.2
Fix Version/s: 12.3.2, 10.11.17, 11.4.11, 11.8.7
Component/s: Replication
Labels:

Bug Category:
Can result in hang or crash
Release Note Summary:

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Fixed an issue where a parallel replica configured to skip ER_CONNECTION_KILLED (i.e. --slave-skip-errors=1927) can hang or crash because it honored this configuration, but should not (this error code is internally repurposed for replication worker threads and cannot be ignored).

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Fixed an issue where a parallel replica configured to skip ER_CONNECTION_KILLED (i.e. --slave-skip-errors=1927) can hang or crash because it honored this configuration, but should not (this error code is internally repurposed for replication worker threads and cannot be ignored).
Epic Link:
Meaningful Replication Testing is Severely Limited due to General Instability

Description

As pointed by Kristian neither replication tests nor production slave server configuration should not instruct the server to ignore --slave_skip_errors=1927 ER_CONNECTION_KILLED error on the parallel slave.

This ticket is to make sure the slave service to examine any skipped errors on this matter
and don't if the error is in the skip-list.

Attachments

Issue Links

split from

MDEV-21107 Assertion `!tmp_gco->next_gco || tmp_gco->last_sub_id > sub_id' failed in finish_event_group

Stalled

Activity

People

Assignee:: Andrei Elkin

Reporter:: Andrei Elkin

Assigned for Review:: Andrei Elkin

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 2026-01-21 18:28

Updated:: 2026-03-09 12:57

Resolved:: 2026-03-02 15:33

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