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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-11117) ColUpdateTimeDeltaHistogram histogram overflow
Date Wed, 05 Oct 2016 07:57:20 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-11117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcus Eriksson updated CASSANDRA-11117:
----------------------------------------
    Status: Open  (was: Patch Available)

> ColUpdateTimeDeltaHistogram histogram overflow
> ----------------------------------------------
>
>                 Key: CASSANDRA-11117
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11117
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Chris Lohfink
>            Assignee: Joel Knighton
>            Priority: Minor
>             Fix For: 2.2.x, 3.0.x, 3.x
>
>
> {code}
> getting attribute Mean of org.apache.cassandra.metrics:type=ColumnFamily,name=ColUpdateTimeDeltaHistogram
threw an exceptionjavax.management.RuntimeMBeanException: java.lang.IllegalStateException:
Unable to compute ceiling for max when histogram overflowed
> {code}
> Although the fact that this histogram has 164 buckets already, I wonder if there is something
weird with the computation thats causing this to be so large? It appears to be coming from
updates to system.local
> {code}
> org.apache.cassandra.metrics:type=Table,keyspace=system,scope=local,name=ColUpdateTimeDeltaHistogram
> {code}



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