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Hadoop >> mail # user >> How to rebuild Hadoop ??


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Re: How to rebuild Hadoop ??
Mattew,

Do you still put your source code in the io package and mapred package ?

If so, rebuild and hadoop core (seems you have done), and then invoke
the command
bin/hadoop -jar hadoop-0.20.2-example.jar sort -libjars
hadoop-core-0.20.2.jar(your new builded jar)  other_arguments
PS: I do not recommend you to put your code mixed with hadoop code,
it's better to put it another places, and build an individual jar.
On Wed, Sep 8, 2010 at 1:12 AM, Matthew John <[EMAIL PROTECTED]> wrote:
> Thanks Jeff !
> Following what you have said, I build my hadoop core jar first (command ->
> ant jar). That created a hadoop-core.jar in the build. Now can you please
> tell me how to use this as dependable for the building of examples.jar.
> Because if I give ant example , it gives errors like the new classes I ve
> included in the core are not found. I suppose thats because its using the
> old hadoop-core.jar .
>
> Thanks,
>
> Matthew John
>

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Best Regards

Jeff Zhang
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB