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Posted to issues@hbase.apache.org by "Jianwei Cui (JIRA)" <ji...@apache.org> on 2015/12/07 10:56:11 UTC

[jira] [Updated] (HBASE-14936) CombinedBlockCache should overwrite CacheStats#rollMetricsPeriod()

     [ https://issues.apache.org/jira/browse/HBASE-14936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jianwei Cui updated HBASE-14936:
--------------------------------
    Attachment: HBASE-14936-trunk.patch

> CombinedBlockCache should overwrite CacheStats#rollMetricsPeriod()
> ------------------------------------------------------------------
>
>                 Key: HBASE-14936
>                 URL: https://issues.apache.org/jira/browse/HBASE-14936
>             Project: HBase
>          Issue Type: Bug
>          Components: BlockCache
>    Affects Versions: 1.1.2
>            Reporter: Jianwei Cui
>         Attachments: HBASE-14936-trunk.patch
>
>
> It seems CombinedBlockCache should overwrite CacheStats#rollMetricsPeriod() as
> {code}
> public void rollMetricsPeriod() {
>   lruCacheStats.rollMetricsPeriod();
>   bucketCacheStats.rollMetricsPeriod();
> }
> {code}
> otherwise, CombinedBlockCache.getHitRatioPastNPeriods() and CombinedBlockCache.getHitCachingRatioPastNPeriods() will always return 0.



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