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https://issues.apache.org/jira/browse/HDFS-14458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882853#comment-16882853
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Feilong He commented on HDFS-14458:
-----------------------------------
Thanks [~rakeshr] so much for your comments. [^HDFS-14458.003.patch] has been
uploaded to resolve the issues put forward by you.
# Yes, we will disable DRAM cache if Pmem cache is enabled. This behavior will
be logged in the new patch. And I also added some code to check DRAM cache
stats when Pmem is enabled.
# Good suggestion. In the new patch, a CacheStats for DRAM cache stats will be
instantiated from cache loader's initialize method.
# I have added some code to check Pmem stats in unit test.
Thanks again!
> Report pmem stats to namenode
> -----------------------------
>
> Key: HDFS-14458
> URL: https://issues.apache.org/jira/browse/HDFS-14458
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Feilong He
> Assignee: Feilong He
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HDFS-14458.000.patch, HDFS-14458.001.patch,
> HDFS-14458.002.patch, HDFS-14458.003.patch
>
>
> Currently, two important stats should be reported to NameNode: cache used and
> cache capacity.
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