Hi, For the time being, you don't need to run that server to perform the matrix M/R computations at this time. (It's a graph computing server, and still working in progress)
However, I'll check that error. Thanks! On Fri, Dec 11, 2009 at 5:40 AM, Ratner, Alan S (IS) <[email protected]> wrote: > I get the following error when starting up Hama. I initialized everything, > deleting all in /tmp and formatting namenode then starting up Hadoop and > HBase and then finally launching Hama). Does anyone know which "local > directories are not writable"? > > Thanks, Alan > > ************************************************************/ > Thu Dec 10 15:18:08 EST 2009 Starting groomserver on ngc > ulimit -n 1024 > 2009-12-10 15:18:09,642 INFO org.apache.hama.graph.GroomServer: STARTUP_MSG: > /************************************************************ > STARTUP_MSG: Starting GroomServer > STARTUP_MSG: host = ngc/127.0.1.1 > STARTUP_MSG: args = [start] > STARTUP_MSG: version = 0.20.1 > STARTUP_MSG: build = > http://svn.apache.org/repos/asf/hadoop/common/tags/release-0.20.1-rc1 -r > 810220; compiled by 'oom' on Tue Sep 1 20:55:56 UTC 2009 > ************************************************************/ > 2009-12-10 15:18:10,037 FATAL org.apache.hama.graph.GroomServer: > org.apache.hadoop.util.DiskChecker$DiskErrorException: all local directories > are not writable > at > org.apache.hama.graph.GroomServer.checkLocalDirs(GroomServer.java:126) > at org.apache.hama.graph.GroomServer.initialize(GroomServer.java:95) > at org.apache.hama.graph.GroomServer.<init>(GroomServer.java:81) > at org.apache.hama.graph.GroomServer.main(GroomServer.java:284) > > 2009-12-10 15:18:10,042 INFO org.apache.hama.graph.GroomServer: SHUTDOWN_MSG: > /************************************************************ > SHUTDOWN_MSG: Shutting down GroomServer at ngc/127.0.1.1 > ************************************************************/ > > > -- Best Regards, Edward J. Yoon @ NHN, corp. [email protected] http://blog.udanax.org
