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Posted to common-dev@hadoop.apache.org by "Hairong Kuang (JIRA)" <ji...@apache.org> on 2008/08/30 00:31:44 UTC

[jira] Commented: (HADOOP-3992) Synthetic Load Generator for NameNode testing

    [ https://issues.apache.org/jira/browse/HADOOP-3992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627132#action_12627132 ] 

Hairong Kuang commented on HADOOP-3992:
---------------------------------------

This issue will focus on providing a tool for testing NameNode behavior under different client loads. It allows the user to generate different mixes of read, write, and list requests by specifying the probabilities of read and write. The user controls the the intensity of the load by adjusting parameters for the number of worker threads and the delay between operations.

> Synthetic Load Generator for NameNode testing
> ---------------------------------------------
>
>                 Key: HADOOP-3992
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3992
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Robert Chansler
>            Assignee: Hairong Kuang
>             Fix For: 0.19.0
>
>
> For performance and correctness testing. The goal is to faithfully simulate the load of a 5000-node cluster with a (comparatively) tiny number of nodes. 

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