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https://issues.apache.org/jira/browse/CASSANDRA-17155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yifan Cai updated CASSANDRA-17155:
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Description: EstimatedHistograms used in timers are allocated with 90
buckets, as part of CASSANDRA-16760. It can represent the highest value of 25
seconds. The setting is not free from hitting overflow error when calculating
the mean value from the histogram. We can increase the buckets count to 127 to
increase the upper limit to 21,356 seconds, which just covers the range of 164
buckets prior CASSANDRA-16760. (was: EstimatedHistograms used in timers are
allocated with 90 buckets, as part of CASSANDRA-16760. It can represent the
highest value of 25 seconds. The setting is not free from hitting overflow
error when calculating the mean value from the histogram. We can increase the
buckets count to 128 to increase the upper limit to 25,628 seconds, which just
covers the range of 165 buckets prior CASSANDRA-16760.)
> Increase the buckets count for timer histogram
> ----------------------------------------------
>
> Key: CASSANDRA-17155
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17155
> Project: Cassandra
> Issue Type: Bug
> Components: Observability/Metrics
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Normal
>
> EstimatedHistograms used in timers are allocated with 90 buckets, as part of
> CASSANDRA-16760. It can represent the highest value of 25 seconds. The
> setting is not free from hitting overflow error when calculating the mean
> value from the histogram. We can increase the buckets count to 127 to
> increase the upper limit to 21,356 seconds, which just covers the range of
> 164 buckets prior CASSANDRA-16760.
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