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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1361) Add -fileStatus operation to NNThroughputBenchmark
Date Sat, 28 Aug 2010 01:29:53 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Konstantin Shvachko updated HDFS-1361:

    Attachment: NNThroughput-fileStatus.patch

The patch introduces -fileStatus operation. It is run similar to open or delete ops.
I also converted TestNNThroughputBenchmark to a Junit-4 test and added a description of "advanced"
options to JavaDoc.
This benchmark was used to compare performance of debug() messages in HADOOP-6884.

> Add -fileStatus operation to NNThroughputBenchmark
> --------------------------------------------------
>                 Key: HDFS-1361
>                 URL: https://issues.apache.org/jira/browse/HDFS-1361
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.22.0
>         Attachments: NNThroughput-fileStatus.patch
> getFileStatus() is a frequently used operation in HDFS. It important to benchmark the
name-node throughput on it.

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