Hi CG,
When the shell hangs, can you pl get the following:
1. The namenode log file
2. The namenode stack dump. This can be generated by running the command
"jstack <namenode_process_id>". You will typically find the jstack
utility in the same directory where the "java" binary is installed.
Thanks,
dhruba
1. Hanging shell commands: Our system is all script-driven. The
first thing our main driver does when it starts up is delete old
datasets in preparation for creating new ones. A command like this will
hang forever about 5% of the time:
bin/hadoop dfs -rmr /import/data/20071030