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https://issues.apache.org/jira/browse/CASSANDRA-6042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13771226#comment-13771226
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Brandon Williams commented on CASSANDRA-6042:
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With CASSANDRA-6057 I'm not sure we still need this ticket. Personally I'm
against WARNing, since sometimes people do this knowing full well the
consequences, and they'd have to adjust their log configurations everywhere to
silence the constant warnings.
> Add WARN when there are a lot of tombstones in a query
> ------------------------------------------------------
>
> Key: CASSANDRA-6042
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6042
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jeremiah Jordan
> Assignee: Lyuben Todorov
> Priority: Minor
> Fix For: 1.2.10
>
>
> Now that we count the number of tombstones hit (so it can go in tracing), can
> we pick some threshold (or make it configurable with 0 being don't warn), and
> spit out a warning saying "Just went through 10000 tombstones in partition
> XYZ".
> Right now if you are having GC problems because some row got a bunch of
> tombstones, you can turn on server side tracing, and hope the bad query gets
> in there, or you can keep making heap dumps, dig through them, and hope you
> catch the query in there.
> I have seen code problems at multiple places causing this same issue (some
> code causing way more tombstones than it should, for just one row). And it
> is a PITA+Luck to debug it right now.
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