Multiple dm-master become leader at the same time #11602
Labels
affects-6.5
affects-6.6
affects-7.0
affects-7.1
affects-7.2
affects-7.3
affects-7.4
affects-7.5
affects-7.6
affects-8.0
affects-8.1
affects-8.2
affects-8.3
area/dm
Issues or PRs related to DM.
severity/critical
type/bug
The issue is confirmed as a bug.
What did you do?
kill dm leader
What did you expect to see?
one dm-master becomes leader
What did you see instead?
two dm-master become leader at the same time
dm-master1:
Versions of the cluster
DM version (run
dmctl -V
ordm-worker -V
ordm-master -V
):(paste DM version here, and you must ensure versions of dmctl, DM-worker and DM-master are same)
Upstream MySQL/MariaDB server version:
(paste upstream MySQL/MariaDB server version here)
Downstream TiDB cluster version (execute
SELECT tidb_version();
in a MySQL client):(paste TiDB cluster version here)
How did you deploy DM: tiup or manually?
(leave TiUP or manually here)
Other interesting information (system version, hardware config, etc):
current status of DM cluster (execute
query-status <task-name>
in dmctl)(paste current status of DM cluster here)
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