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https://issues.apache.org/jira/browse/HDFS-5639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13843606#comment-13843606
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Chris Li commented on HDFS-5639:
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Something like this will be needed down the road if HADOOP-9640 is adopted;
I'll open separate jiras for these enhancements when we're ready.
> rpc scheduler abstraction
> -------------------------
>
> Key: HDFS-5639
> URL: https://issues.apache.org/jira/browse/HDFS-5639
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ming Ma
> Attachments: HDFS-5639-2.patch, HDFS-5639.patch
>
>
> We have run into various issues in namenode and hbase w.r.t. rpc handling in
> multi-tenant clusters. The examples are
> https://issues.apache.org/jira/i#browse/HADOOP-9640
> https://issues.apache.org/jira/i#browse/HBASE-8836
> There are different ideas on how to prioritize rpc requests. It could be
> based on user id, or whether it is read request or write request, or it could
> use specific rule like datanode's RPC is more important than client RPC.
> We want to enable people to implement and experiiment different rpc
> schedulers.
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