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Jim Witschey commented on CASSANDRA-10864:
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Here:
https://www.mail-archive.com/user%40cassandra.apache.org/msg44644.html
you mentioned that you were going to look at commitlog behavior. Did you get
any new information from that? And were you able to watch {{ttop}} at all, as
described here:
https://www.mail-archive.com/user%40cassandra.apache.org/msg44589.html
[~yukim] This seems to be related to, or at least effecting, repair. Could you
have a look at the email thread and see if you can tell what the issue is?
> Dropped mutations high until cluster restart
> --------------------------------------------
>
> Key: CASSANDRA-10864
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10864
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jeff Ferland
>
> Originally raised and investigated in
> https://www.mail-archive.com/user@cassandra.apache.org/msg44586.html
> Cause is still unclear, but a rolling restart has on two occasions since been
> performed to cope with dropped mutations and timed-out reads.
> Pattern is indicative of some kind of code quality issue possibly involving
> locking operations. Stack flame graphs do not show a clear difference between
> restarts.
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