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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2111) Block Report Optimization: Queue block reports
Date Mon, 17 Dec 2007 20:01:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552514
] 

Sanjay Radia commented on HADOOP-2111:
--------------------------------------

I implemented this an did some performance benchmarks.
It did help initial block report processing and eliminated duplicated block-reports due to
timeout.
However, when I combined this with the random backoff (hadoop-2326) it did not help.

Furthermore, once we cleaniup the RPC layer to remove the client-side timeouts and retries,
this work will be obsolete and there
does not seem to be a good reason to have a dedicated queue and thread for the block report
rpc.

> Block Report Optimization: Queue block reports
> ----------------------------------------------
>
>                 Key: HADOOP-2111
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2111
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.14.0
>            Reporter: Robert Chansler
>            Assignee: Sanjay Radia
>             Fix For: 0.16.0
>
>
> Use queuing to improve efficiency of block reports.

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