It seems that this is not the point. ;=( And in this case, my cluster is really easy to crash....
СP 写道: > According to the cofiguration settings manaul in this website > http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster) > i think it sould be > > Master > Slave1 > Slave2 > Slave3 > > in the slaves configuration > maybe you should give each IP a hostname for identification > > ----- Original Message ----- > From: "David Wei" <[EMAIL PROTECTED]> > To: "?P" <[EMAIL PROTECTED]> > Cc: <core-user@hadoop.apache.org> > Sent: Thursday, October 16, 2008 11:41 AM > Subject: Re: Why did I only get 2 live datanodes? > > > >> only the IPs of each node. For example: >> 192.168.52.129 >> 192.168.49.40 >> 192.168.55.104 >> 192.168.49.148 >> >> They are totally different in hardware conf., and is that matter? >> >> Thx! >> >> David >> >> ?P 写道: >> >>> What is your configuration in $HADOOP_HOME/conf/salves ? >>> >>> ----- Original Message ----- >>> From: "David Wei" <[EMAIL PROTECTED]> >>> To: <core-user@hadoop.apache.org> >>> Sent: Thursday, October 16, 2008 11:05 AM >>> Subject: Why did I only get 2 live datanodes? >>> >>> >>> >>> >>>> We had installed hadoop on 4 machines, and one of them has been chosen >>>> to be master and also slaves. The rest of machines are configured as >>>> slaves. But it is strange that we can only see 2 live nodes on web >>>> UI:http://192.168.52.129:50070/dfshealth.jsp(master machine). When we >>>> try to refresh the page, we found that only 2 nodes are listed and one >>>> of them are continuing replaced by others. >>>> >>>> After using command:bin/hadoop dfsadmin -report, we got only 2 data >>>> nodes listed. >>>> >>>> Another thing is we found this in the log >>>> file(hadoop-root-namenode-datacenter5.log >>>> ---datacenter5 is the name of master): >>>> 2008-10-16 02:45:12,384 INFO org.apache.hadoop.dfs.StateChange: BLOCK* >>>> NameSystem.registerDatanode: node 192.168.49.148:50010 is replaced by >>>> 192.168.52.129:50010 with the same storageID >>>> DS-2140035130-127.0.0.1-50010-1223898963914 >>>> ....... >>>> 2008-10-16 02:45:12,432 INFO org.apache.hadoop.dfs.StateChange: BLOCK* >>>> NameSystem.registerDatanode: node 192.168.52.129:50010 is replaced by >>>> 192.168.55.104:50010 with the same storageID >>>> DS-2140035130-127.0.0.1-50010-1223898963914 >>>> ........ >>>> 2008-10-16 02:45:13,380 INFO org.apache.hadoop.dfs.StateChange: BLOCK* >>>> NameSystem.registerDatanode: node 192.168.55.104:50010 is replaced by >>>> 192.168.49.148:50010 with the same storageID >>>> DS-2140035130-127.0.0.1-50010-1223898963914 >>>> >>>> Is there any problem with our configuration or maybe we just missed some >>>> options? >>>> >>>> BTW, my machines are total different in hardware, such as memory, disk >>>> and cpu. >>>> >>>> Thx! >>>> >>>> David >>>> >>>> >>>> >>>> >>>> >>>> >>> >> > > >
