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From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8968) New benchmark throughput tool for striping erasure coding
Date Tue, 08 Sep 2015 09:41:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734521#comment-14734521
] 

Rui Li commented on HDFS-8968:
------------------------------

Failed tests don't seem related. The patch here doesn't modify any existing code.

> New benchmark throughput tool for striping erasure coding
> ---------------------------------------------------------
>
>                 Key: HDFS-8968
>                 URL: https://issues.apache.org/jira/browse/HDFS-8968
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Rui Li
>         Attachments: HDFS-8968-HDFS-7285.1.patch
>
>
> We need a new benchmark tool to measure the throughput of client writing and reading
considering cases or factors:
> * 3-replica or striping;
> * write or read, stateful read or positional read;
> * which erasure coder;
> * striping cell size;
> * concurrent readers/writers using processes or threads.
> The tool should be easy to use and better to avoid unnecessary local environment impact,
like local disk.



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