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Posted to commits@cassandra.apache.org by "James Berragan (Jira)" <ji...@apache.org> on 2025/02/26 21:50:00 UTC
[jira] [Updated] (CASSSIDECAR-220) Add a Sidecar period task to monitor and delete commit log segments in the cdc_raw directory
[ https://issues.apache.org/jira/browse/CASSSIDECAR-220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Berragan updated CASSSIDECAR-220:
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Change Category: Operability
Complexity: Normal
Component/s: Build
Fix Version/s: 1.0
Reviewers: Francisco Guerrero, Yifan Cai
Assignee: James Berragan
Priority: Normal (was: Major)
Status: Open (was: Triage Needed)
> Add a Sidecar period task to monitor and delete commit log segments in the cdc_raw directory
> --------------------------------------------------------------------------------------------
>
> Key: CASSSIDECAR-220
> URL: https://issues.apache.org/jira/browse/CASSSIDECAR-220
> Project: Sidecar for Apache Cassandra
> Issue Type: New Feature
> Components: Build
> Reporter: James Berragan
> Assignee: James Berragan
> Priority: Normal
> Fix For: 1.0
>
>
> For users of CDC it can be dangerous to allow the cdc_raw directory to grow indefinitely without clean-up. The CDC feature in Cassandra can cause writes to block if the cdc_raw directory reaches the cdc_total_space threshold. This feature will monitor the commit log segments in the cdc_raw directory and delete the oldest to keep the space usage below cdc_total_space threshold and alert when there is insufficient space to keep up with a certain time-window (i.e. if the buffer cannot keep less than 15 minutes or 1 -hour of mutations then alert).
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