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Posted to dev@kafka.apache.org by "Dong Lin (JIRA)" <ji...@apache.org> on 2015/06/11 19:18:01 UTC

[jira] [Updated] (KAFKA-2191) Measured rate should not be infinite

     [ https://issues.apache.org/jira/browse/KAFKA-2191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dong Lin updated KAFKA-2191:
----------------------------
    Labels: quotas  (was: )

> Measured rate should not be infinite
> ------------------------------------
>
>                 Key: KAFKA-2191
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2191
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Dong Lin
>            Assignee: Dong Lin
>              Labels: quotas
>         Attachments: KAFKA-2191.patch, KAFKA-2191.patch, KAFKA-2191_2015-05-13_15:32:15.patch, KAFKA-2191_2015-05-14_00:34:30.patch, KAFKA-2191_2015-05-27_17:28:41.patch
>
>
> Rate.measure() is called, it calculates elapsed time as now - stat.oldest(now).lastWindowMs. But the stat.oldest(now) may equal now due to the way SampledStat is implemented. As a result, Rate.measure() may return Infinite. 
> This bug needs to be fixed in order for quota implementation to work properly.



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