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https://issues.apache.org/jira/browse/HDFS-15337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-15337:
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Target Version/s: 3.4.1 (was: 3.4.0)
> Support available space choosing policy in HDFS Persistent Memory Cache
> -----------------------------------------------------------------------
>
> Key: HDFS-15337
> URL: https://issues.apache.org/jira/browse/HDFS-15337
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: caching, datanode
> Reporter: Feilong He
> Assignee: Feilong He
> Priority: Major
>
> In HDFS-13762, we introduced HDFS Persistent Memory Cache feature. In that
> implementation, if more than one persistent memory volume is specified by
> user, a simple round-robin policy is used to pick up a volume to cache data.
> Evidently, the large difference of volume capacity can lead to imbalance
> issue.
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