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Posted to commits@cassandra.apache.org by "Dinesh Joshi (Jira)" <ji...@apache.org> on 2021/10/08 18:14:00 UTC
[jira] [Updated] (CASSANDRA-17001) Optionally prune CDC segments if
consumer fails to consume them fast enough
[ https://issues.apache.org/jira/browse/CASSANDRA-17001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dinesh Joshi updated CASSANDRA-17001:
-------------------------------------
Change Category: Operability
Complexity: Normal
Component/s: Local/Commit Log
Status: Open (was: Triage Needed)
> 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
> Components: Local/Commit Log
> Reporter: Dinesh Joshi
> Assignee: Yifan Cai
> Priority: Normal
>
> 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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