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Posted to commits@cassandra.apache.org by "Chris Lohfink (JIRA)" <ji...@apache.org> on 2016/02/03 21:13:39 UTC
[jira] [Updated] (CASSANDRA-11117) ColUpdateTimeDeltaHistogram
histogram overflow
[ https://issues.apache.org/jira/browse/CASSANDRA-11117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Lohfink updated CASSANDRA-11117:
--------------------------------------
Summary: ColUpdateTimeDeltaHistogram histogram overflow (was: ColUpdateTimeDeltaHistogram histogram size too low)
> ColUpdateTimeDeltaHistogram histogram overflow
> ----------------------------------------------
>
> Key: CASSANDRA-11117
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11117
> Project: Cassandra
> Issue Type: Bug
> Reporter: Chris Lohfink
> Priority: Minor
>
> {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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