How many machines do you have? This could be because you re - formatted the Name Node and the versions are not matching. Your Data Mode would then be rejected by the Name Node. Chris On Apr 4, 2014 2:58 PM, "Jitendra Yadav" <[email protected]> wrote:
> Use jps and check what all processes are running, is this a single node > cluster? > > > On Fri, Apr 4, 2014 at 11:54 AM, Mahmood Naderan <[email protected]>wrote: > >> Strange! See the output >> >> $ ./search/bin/hadoop namenode -format >> Re-format filesystem in /data/mahmood/nutch-test/filesystem/name ? (Y or >> N) Y >> >> $ ./search/bin/start-all.sh >> starting namenode, logging to >> /data/mahmood/nutch-test/search/logs/hadoop-mahmood-namenode-orca.out >> localhost: starting datanode, logging to >> /data/mahmood/nutch-test/search/logs/hadoop-mahmood-datanode-orca.out >> localhost: starting secondarynamenode, logging to >> /data/mahmood/nutch-test/search/logs/hadoop-mahmood-secondarynamenode-orca.out >> starting jobtracker, logging to >> /data/mahmood/nutch-test/search/logs/hadoop-mahmood-jobtracker-orca.out >> localhost: starting tasktracker, logging to >> /data/mahmood/nutch-test/search/logs/hadoop-mahmood-tasktracker-orca.out >> >> >> $ ./search/bin/hadoop dfsadmin -report >> Configured Capacity: 0 (0 KB) >> Present Capacity: 0 (0 KB) >> DFS Remaining: 0 (0 KB) >> DFS Used: 0 (0 KB) >> DFS Used%: �% >> Under replicated blocks: 0 >> Blocks with corrupt replicas: 0 >> Missing blocks: 0 >> >> ------------------------------------------------- >> Datanodes available: 0 (0 total, 0 dead) >> >> >> Regards, >> Mahmood >> On Friday, April 4, 2014 11:09 PM, Jitendra Yadav < >> [email protected]> wrote: >> Yes, run that command and check whether you have any live datanode. >> >> Thanks >> jitendra >> >> >> On Fri, Apr 4, 2014 at 11:35 AM, Mahmood Naderan <[email protected]>wrote: >> >> Jitendra, >> For the first part, can explain how? >> For the second part, do you mean "hadoop dfsadmin -report"? >> >> Regards, >> Mahmood >> >> >> On Friday, April 4, 2014 9:44 PM, Jitendra Yadav < >> [email protected]> wrote: >> >Can you check total running datanodes in your cluster and also >> free hdfs space? >> > >> > >> >Thanks >> >Jitendra >> >> >> >> >> >> >> >> >
