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https://issues.apache.org/jira/browse/HADOOP-1432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12503583
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Doug Cutting commented on HADOOP-1432:
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bq. Some more experimentation needs to be done to make sure we are using the
most appropriate Grizzly APIs (in terms of performance) before this patch can
go in.
Yes. In particular, as a performance optimization, it should show a
significant speedup.
If it works well, we should ideally could convert all our Jetty daemons to
Grizzly. Grizzly supports the Servlet API, and we pre-compile all of our JSP
pages to servlets, so that should be possible.
> Use Grizzly for Fetching Map Output in Shuffle
> ----------------------------------------------
>
> Key: HADOOP-1432
> URL: https://issues.apache.org/jira/browse/HADOOP-1432
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Tahir Hashmi
> Assignee: Tahir Hashmi
> Attachments: 1432.patch, grizzly.tgz
>
>
> As mentioned in HADOOP-1273 and references therefrom, Jetty 6 still doesn't
> seem to be stable enough for use in Hadoop. Instead, we've decided to
> consider the usage of Grizzly Framework [https://grizzly.dev.java.net/] for
> NIO based communication.
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