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https://issues.apache.org/jira/browse/CASSANALYTICS-196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yifan Cai updated CASSANALYTICS-196:
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Change Category: Semantic
Complexity: Normal
Status: Open (was: Triage Needed)
PR: [https://github.com/apache/cassandra-analytics/pull/241]
CI:
[https://app.circleci.com/pipelines/github/yifan-c/cassandra-analytics?branch=CASSANALYTICS-TBD%2Fskip-cdc-irrelevant-mutation-on-deser-failure]
> Skip cdc irrelevant mutations on deserialization failure
> --------------------------------------------------------
>
> Key: CASSANALYTICS-196
> URL: https://issues.apache.org/jira/browse/CASSANALYTICS-196
> Project: Apache Cassandra Analytics
> Issue Type: Improvement
> Components: CDC
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Normal
> Time Spent: 10m
> Remaining Estimate: 0h
>
> BufferingCommitLogReader reads mutations from a Cassandra commit log to feed
> CDC. If a mutation fails to deserialize (e.g. an unknown-column error from a
> schema mismatch), it was always treated as unrecoverable — the reader aborted
> the whole commit log segment, even when the mutation belonged to a table that
> isn't CDC-enabled and would have been discarded anyway.
>
> Before giving up, cheaply check whether the mutation's table is CDC-enabled.
> If it isn't, skip that one mutation and keep reading the rest of the segment
> instead of aborting.
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