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https://issues.apache.org/jira/browse/CASSANDRA-10580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15055082#comment-15055082
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Paulo Motta commented on CASSANDRA-10580:
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It's better to create a new ticket for the cf metrics to improve trackability
and also because it will involve other changes such as adding the new metric to
{{nodetool cfstats}}. You can make the new ticket dependent on this one and
build the patch on the top of it.
> On dropped mutations, more details should be logged.
> ----------------------------------------------------
>
> Key: CASSANDRA-10580
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10580
> Project: Cassandra
> Issue Type: Improvement
> Components: Coordination
> Environment: Production
> Reporter: Anubhav Kale
> Assignee: Anubhav Kale
> Priority: Minor
> Fix For: 3.2, 2.2.x
>
> Attachments: 10580-Metrics.patch, 10580.patch,
> CASSANDRA-10580-Head.patch, Trunk.patch
>
>
> In our production cluster, we are seeing a large number of dropped mutations.
> At a minimum, we should print the time the thread took to get scheduled
> thereby dropping the mutation (We should also print the Message / Mutation so
> it helps in figuring out which column family was affected). This will help
> find the right tuning parameter for write_timeout_in_ms.
> The change is small and is in StorageProxy.java and MessagingTask.java. I
> will submit a patch shortly.
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