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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5358) Provide scripting functionality to the synthetic load generator
Date Wed, 04 Mar 2009 20:07:56 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12678888#action_12678888
] 

Hairong Kuang commented on HADOOP-5358:
---------------------------------------

> Added check that we get at least one valid line from script.
One minor comment: I do not think that the boolean "successful" is needed. The code sets its
value for every line read. Checking if the array list "duration" is empty is simpler because
it requires only one check.

> Provide scripting functionality to the synthetic load generator
> ---------------------------------------------------------------
>
>                 Key: HADOOP-5358
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5358
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: test
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>            Priority: Minor
>         Attachments: HADOOP-5358.patch, HADOOP-5358.patch, HADOOP-5358.patch, HADOOP-5358.patch
>
>
> Currently the load generator accepts parameters at start time as to the read and write
probabilities to apply against the namenode.  It would be useful to be able to provide it
with a script of these values, so that they can be varied over time.  This would allow the
namenode to be tested with varying loads over time so its behavior to changing loads can be
examined.

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