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https://issues.apache.org/jira/browse/HDFS-12545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16180872#comment-16180872
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Rushabh S Shah commented on HDFS-12545:
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[~ajayydv] I have some basic questions.
Can you share the motivation behind this jira ?
bq. max(dfs.namenode.handler.count, min(200,20 * log2(no of datanodes)))
Just curious how did you come up with this formula ? Did you perform any
benchmarks ?
> Autotune NameNode RPC handler threads according to number of datanodes in
> cluster
> ---------------------------------------------------------------------------------
>
> Key: HDFS-12545
> URL: https://issues.apache.org/jira/browse/HDFS-12545
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ajay Kumar
> Assignee: Ajay Kumar
>
> Autotune NameNode RPC handler threads according to number of datanodes in
> cluster. Currently rpc handler are controlled by
> {{dfs.namenode.handler.count}} on cluster start. Jira is to discuss best way
> to auto tune it according to no of datanodes. Updating this to
> {{max(dfs.namenode.handler.count, min(200,20 * log2(no of datanodes)))}} on
> NameNode start is one possible way.
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