The version of hadoop is 0.20,while I try to decommission a datanode from the cluster: (1) Add the network addresses(IP adrress) of the nodes to be decommissioned to the exclude file. (2)Add property mapred.hosts.exclude to mapred-sites.xml and dfs.hosts.exclude to dfs-sites.xml like follow:
*<property>* * <name>mapred.hosts.exclude</name>* * <value>/data/stat/hadoop/conf/excludes</value>* * <final>true</final>* *</property>* * * (3)And then I run hadoop dfsadmin -refreshNodes, in report i see:Decommission Status : Decommission in progress *Name: 10.134.135.30:50010* *Decommission Status : Decommission in progress* *Configured Capacity: 1546959884288 (1.41 TB)* *DFS Used: 2647441408 (2.47 GB)* *Non DFS Used: 651818385408 (607.05 GB)* *DFS Remaining: 892494057472(831.2 GB)* *DFS Used%: 0.17%* *DFS Remaining%: 57.69%* *Last contact: Thu Sep 16 11:32:44 CST 2010* * * but more than one hour has passed,the status of the decommissioning data node hasn't been changed to decommissioned, anyone can tell me how to deal with this? thanks. Shuai Chen Intelligent Transportation Information Systems Laboratory Department of Electronic Engineering, Tsinghua University Beijing 100084, P. R. China Mobile:15210950974
