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https://issues.apache.org/jira/browse/CASSANDRA-15190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875947#comment-16875947
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Nate McCall commented on CASSANDRA-15190:
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Hi [~yupingwyp],
This issue system is not the appropriate avenue for technical support. Please
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We will be happy to work with you there.
> Is there a way to auto-clean up data whenever an old node rejoins the cluster
> ------------------------------------------------------------------------------
>
> Key: CASSANDRA-15190
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15190
> Project: Cassandra
> Issue Type: Bug
> Reporter: Yuping Wang
> Priority: Urgent
>
> Due to specific reasons of our use case, we have gc grace to 15 minutes
> instead of default 10 days. Since we have a large amount of nodes in our
> Cassandra fleet, not surprisingly, we encounter occasionally node status
> going from up to down and up again. The problem is when the down node rejoins
> the cluster after 15 minutes, it automatically adds already deleted data back
> and causing zombie data.
> our questions:
> # Is there a way to not allow a down node to rejoin the cluster?
> # or is there a way to configure rejoining node not adding stale data back
> regardless of how long the node is down before rejoining
> # or is there a way to auto clean up the data when rejoining ?
> We know adding those data back is a conservative approach to avoid data loss
> but in our specific case, we are not worried about deleted data being
> revived.... we don’t have such use case. We really need a non-defaul option
> to never add back deleted data on rejoining nodes.
> this functionality will ultimately be a deciding factor on whether we can
> continue with Cassandra.
>
> Please help!
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