Yifan Cai created CASSANDRA-16211:
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Summary: Improve job metadata queries exception handling in
cassandra-diff
Key: CASSANDRA-16211
URL: https://issues.apache.org/jira/browse/CASSANDRA-16211
Project: Cassandra
Issue Type: Improvement
Components: Tool/diff
Reporter: Yifan Cai
Assignee: Yifan Cai
The job metadata tracks the progress of the diff job. Sometimes, a job can fail
due to the progress update query failures.
The progress update queries can be categorized into 2 groups, critical and
trivial one.
When a query failed to update a trivial status (e.g. ProgressTracker), we would
mostly hope to continue the job and just log the failure.
When a query failed to update a critical status (e.g. JobLifeCycle), we can
apply the client-side retry strategy (e.g. exponential backoff) in addition to
the retry policy.
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