sanqingleo created FLINK-35890:
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Summary: Select only the increment but still enter the
SNAPSHOT,lead
Key: FLINK-35890
URL: https://issues.apache.org/jira/browse/FLINK-35890
Project: Flink
Issue Type: Bug
Components: Flink CDC
Affects Versions: cdc-3.1.1
Reporter: sanqingleo
Attachments: image-2024-07-24-16-47-19-258.png
Hi, when I was using Flink CDC Postgre, I chose 'debezium.snapshot.mode' =
'never' to skip the snapshot phase, but the code still entered the snapshot
branch, and this log was printed, 'Database snapshot phase can 't perform
checkpoint, acquired Checkpoint lock.'
(Since our business creates the task first and then writes the data), the task
cannot perform ckp, and the status is always stuck in in progress. After the
timeout, the task restarts.
Normally, if you only choose incremental data synchronization, you should not
enter this branch.
The failure of ckp does not mean that the first one fails. After multiple ckp
are successfully performed, it will then get stuck, causing a timeout and
restarting the task. This is a problem that must occur. After it appeared in
production, it also recurred many times in local testing.
Then we test, if there is data flowing in, the task status will be normal.
sql and conf like this
!image-2024-07-24-16-47-19-258.png!
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