Hi Sai, A few questions: 1. which version of hadoop are you using? yarn.resourcemanager.hostname is a new configuration which is not available old versions. 2. Does your yarn-site.xml contains yarn.resourcemanager.scheduler.address? If yes, what's the value? 3. or you could access http://<resource_mgr>:8088/conf to check the value of yarn.resourcemanager.scheduler.address.
On Thu, Mar 6, 2014 at 3:29 AM, Sai Prasanna <ansaiprasa...@gmail.com>wrote: > Hi, > > I have a five node cluster. One master and 4 slaves. Infact master also > has a data node running. When ever app master is launched in the master > node, simple wordcount program runs fine. But if it is launched in some > slave nodes, the progress of the application gets hung. > The problem is, though i have set the yarn.resourcemanager.hostname to the > ip-address of the master, the slave connects only to the default, > 0.0.0.0:8030. > What could be the reason ??? > > I get the following message in the logs of app.master in web-UI. > *"...Configuration: job.xml:an attempt to override final parameter: > mapreduce.job.end-notification.max.retry.interval; Ignoring.* > > > *2014-03-05 20:15:50,597 WARN [main] org.apache.hadoop.conf.Configuration: > job.xml:an attempt to override final parameter: > mapreduce.job.end-notification.max.attempts; Ignoring. 2014-03-05 > 20:15:50,603 INFO [main] org.apache.hadoop.yarn.client.RMProxy: Connecting > to ResourceManager at /0.0.0.0:8030 <http://0.0.0.0:8030>2014-03-05 > 20:15:56,632 INFO [main] org.apache.hadoop.ipc.Client: Retrying connect to > server: 0.0.0.0/0.0.0.0:8030 <http://0.0.0.0/0.0.0.0:8030>. Already tried 0 > time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, > sleepTime=1000 MILLISECONDS)"* > > > -- > *Sai Prasanna. AN* > *II M.Tech (CS), SSSIHL* > > > *Entire water in the ocean can never sink a ship, Unless it gets inside. > All the pressures of life can never hurt you, Unless you let them in.* > -- Cheers -MJ
