Yes ,Thanks, I have tried as you suggested. and I leave the safemode , but when i run bin/hadoop dfsadmin -report, There still is no datanode available.
2008/10/15 Prasad Pingali <[EMAIL PROTECTED]> > hello, > The report shows your dfs is not yet started. Sometimes it may take a > minute or two to start dfs on a small cluster. Did you wait for sometime > for > dfs to start and leave safe mode? > > - Prasad. > > On Wednesday 15 October 2008 01:57:44 pm ZhiHong Fu wrote: > > Hello: > > > > I have installed hadoop on a cluster which hava 7 nodes, one is > > namenode and the other 6 nodes are datanode . and At that time It runs > > normally, and also I runned the wordcount example, It's good. > > > > but today I want to run a mapred application , It reports error. and > I > > found some datanode down, But I didn't modify anything ,It's werid ,I can > > ssh to all the datanodes. > > > > The error is as follows: > > [EMAIL PROTECTED] hadoop-0.18.0]$ bin/start-dfs.sh > > starting namenode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-namenode-cluster > >1.cluster1domain.out node3: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node3.c > >luster1domain.out node1: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node1.c > >luster1domain.out node2: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node2.c > >luster1domain.out node4: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node4.c > >luster1domain.out node5: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node5.c > >luster1domain.out node6: starting datanode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-node6.c > >luster1domain.out cluster1: starting secondarynamenode, logging to > > > /home/hadoop/tools/hadoop-0.18.0/bin/../logs/hadoop-hadoop-secondarynamenod > >e-cluster1.cluster1domain.out [EMAIL PROTECTED] hadoop-0.18.0]$ bin/hadoop > > dfsadmin -report > > Total raw bytes: 0 (0 KB) > > Remaining raw bytes: 0 (0 KB) > > Used raw bytes: 0 (0 KB) > > % used: ?% > > > > Total effective bytes: 0 (0 KB) > > Effective replication multiplier: NaN > > ------------------------------------------------- > > Datanodes available: 0 > > > > >
