mariadb: waiting for relay to catch up with loader is timeout

[GMHDBJD]

What did you do?

start dm task with relay-log enabled, upstream is mariadb slave, swith slave to master

What did you expect to see?

task succeed

What did you see instead?

[2024/11/21 14:21:37.400 +00:00] [ERROR] [subtask.go:229] ["wait condition"] [subtask=task_pessimistic] [error="[code=40067:class=dm-worker:scope=internal:level=high], Message: waiting for relay to catch up with loader is timeout (exceeding 30s), loader: 0-1-310, relay: 0-1-210"]
ref https://github.com/GMHDBJD/tiflow/actions/runs/11954954942

Versions of the cluster

DM version (run dmctl -V or dm-worker -V or dm-master -V):

master

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)