how to execute hadoop jar from HDFS FileSystem?

Question

I'm always executing job from local File system as following

hadoop jar /home/usr/jar/myjar.jar com.test.TestMain 

How can I execute same command but myjar.jar will be in hdfs ?

Something like

hadoop jar hdfs:///home/usr/jar/myjar.jar com.test.TestMain 

But of course this doesn't work...

Answer 1

hadoop fs -copyToLocal hdfs:///home/usr/jar/myjar.jar /tmp/myjar.jar && hadoop jar /tmp/myjar.jar com.test.TestMain