Hi, I tried decommissioning a node in my Hadoop cluster. I am running Apache Hadoop 1.0.2 and ours is a four node cluster. I also have HBase installed in my cluster. I have shut down region server in this node.
For decommissioning, I did the following steps * Added the following XML in hdfs-site.xml <property> <name>dfs.hosts.exclude</name> <value>/full/path/of/host/exclude/file</value> </property> * Ran "<HADOOP_HOME>/bin/hadoop dfsadmin -refreshNodes" But node decommissioning is running for the last 6 hrs. I don't know when it will get over. I am in need of this node for other activities. >From HDFS health status JSP: Cluster Summary 338 files and directories, 200 blocks = 538 total. Heap Size is 16.62 MB / 888.94 MB (1%) Configured Capacity : 1.35 TB DFS Used : 759.57 MB Non DFS Used : 179.36 GB DFS Remaining : 1.17 TB DFS Used% : 0.05 % DFS Remaining% : 86.92 % Live Nodes : 4 Dead Nodes : 0 Decommissioning Nodes : 1 Number of Under-Replicated Blocks : 129 Please share if you have any idea. Thanks a lot. Regards, Anand.C
