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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HDFS-375) DFSClient cpu overhead is too high
Date Wed, 15 Sep 2010 22:51:33 GMT

     [ https://issues.apache.org/jira/browse/HDFS-375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-375.
-----------------------------------------

    Resolution: Not A Problem

I believe this issue went stale.  Closing.

> DFSClient cpu overhead is too high
> ----------------------------------
>
>                 Key: HDFS-375
>                 URL: https://issues.apache.org/jira/browse/HDFS-375
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Runping Qi
>
> When we do dfs throughput test using hadoop dfs -cat, we have observed that the client
side cpu usage is very high, 3 to five times that of a data node serving the file.
> Before 0.18, the data node cpu usage was equally high, and this problem is fixed since
0.18. However, the client side problem still exists.

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