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Hadoop >> mail # user >> Re: Possible to run an application jar as a hadoop daemon?


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Robert Molina 2013-01-04, 22:26
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Re: Possible to run an application jar as a hadoop daemon?
Hi,

On Fri, Jan 4, 2013 at 8:10 PM, Krishna Rao <[EMAIL PROTECTED]> wrote:
> If I want to run the jar I need to run it using "hadoop jar <application jar>", so that it can access HDFS (that is running "java -jar <application jar> results in a HDFS error").

The latter is because running a Hadoop program requires Hadoop
dependencies and configs to be available in its runtime classpath.
This can be achieved by either creating a fat jar assembly, containing
config files and all required dependency jars; or you can run it as:
java -cp yourjar.jar:`hadoop classpath` YourMainClass <args> such that
the classpath is automatically setup for you.

--
Harsh J
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Chitresh Deshpande 2013-01-05, 21:33
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Krishna Rao 2013-01-07, 11:20
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