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From "Jonathan Ellis (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-342) hadoop integration
Date Fri, 05 Feb 2010 15:51:28 GMT


Jonathan Ellis commented on CASSANDRA-342:

> The fatClient needs to be refactored to not need to listen on a port (no gossip) 

you need to listen on a port to run messagingservice, whether or not you include gossip (remember
gossip is tcp on the same port as the rest now).  and w/o messagingservice you can't get responses
to reads or writes.  this is a non-starter.

if you really need to run more than one hadoop jvm per machine you can do it by putting a
storage-conf.xml on each hadoop's classpath.  imo this is better than bundling it into the
job jar anyway.

> hadoop integration
> ------------------
>                 Key: CASSANDRA-342
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.6
>         Attachments: 0001-v3-CASSANDRA-342.-Set-up-for-the-hadoop-commits.patch, 0001-v4-add-basic-hadoop-support-one-split-per-node.txt,
0001-v5-add-basic-hadoop-support-one-split-per-node.txt, 0002-v3-CASSANDRA-342.-Working-hadoop-support.patch,
0002-v4-add-wordcount-hadoop-example.txt, 0002-v5-add-wordcount-hadoop-example.txt, 0003-v3-CASSANDRA-342.-Adding-the-WordCount-example.patch,
0003-v4-add-WordCountSetup-multiple-tests.txt, 0003-v5-make-predicate-configurable.txt, 0004-v5-sub-splits.txt,
0005-v5-jar-packaging.txt, 0006-prevent-multiple-client-initializations.txt
> Some discussion on -dev:

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