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https://issues.apache.org/jira/browse/HBASE-14936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Heng Chen updated HBASE-14936:
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Attachment: HBASE-14936-branch-1.0-addendum.patch
fix compile error
> 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
> Assignee: Jianwei Cui
> Fix For: 2.0.0, 1.2, 1.1, 1.3
>
> Attachments: HBASE-14936-branch-1.0-1.1.patch,
> HBASE-14936-branch-1.0-addendum.patch, HBASE-14936-trunk-v1.patch,
> HBASE-14936-trunk-v2.patch, 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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