Dong0829 created HBASE-28386:
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Summary: Potential Data loss issue for the HFLog
Key: HBASE-28386
URL: https://issues.apache.org/jira/browse/HBASE-28386
Project: HBase
Issue Type: Bug
Components: wal
Reporter: Dong0829
Attachments: Screenshot 2024-02-19 at 10.53.20.png
I am going through the WAL implementation HFLog, and based on the code
reading, as my understanding there maybe potential data loss for example in
below scenarios: # Append record A3 already into the stream, and but the
syncFuture S3 does not reach to the SyncRunner yet
# The SyncRunner run the sync and call sync on writer, but failed, all the
data in stream lost including A3
# Because the syncFuture S3 does not reach to the syncRunner, it can not
release it and mark it failed
# In next run() of the SyncRunner, the new sync() succeeded, it will release
and mark S3 as succeeded, but actually it should failed which cause data loss.
Can anyone help to check above above is true? Am I missing anything regarding
this process?
!Screenshot 2024-02-19 at 10.53.20.png!
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