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Posted to commits@cassandra.apache.org by "Dinesh Joshi (Jira)" <ji...@apache.org> on 2021/09/27 17:12:00 UTC

[jira] [Created] (CASSANDRA-17001) Optionally prune CDC segments if consumer fails to consume them fast enough

Dinesh Joshi created CASSANDRA-17001:
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             Summary: Optionally prune CDC segments if consumer fails to consume them fast enough
                 Key: CASSANDRA-17001
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17001
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Dinesh Joshi
            Assignee: Yifan Cai


Current CDC implementation blocks writes if the CDC segments have filled up. This makes sense for some use-cases. In other cases it would be beneficial for C* to prune the CDC segments if they haven't been consumed. This will prevent blocking of writes. With this change we will introduce a flag to prune CDC segments much like a circular buffer. This will prevent the writes being blocked.




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