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https://issues.apache.org/jira/browse/CASSANDRA-10580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15049667#comment-15049667
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Anubhav Kale commented on CASSANDRA-10580:
------------------------------------------

Thanks, your comment on printing message motivated me to actually check if its 
a mutation and print KS and CF. I will send a patch for TRUNK first, and if 
that looks good then will make patches for 2.2 and 3.0.

> 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.patch, CASSANDRA-10580-Head.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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