One of my datanodes got hung and I had to reboot and restart the datanode & tasktracker. However the datanode fails to start with the following error message.
Thanks in advance. [root@hadoop20 init.d]# ./hadoop-0.20-datanode start Starting Hadoop datanode daemon (hadoop-datanode): starting datanode, logging to /usr/lib/hadoop-0.20/logs/hadoop-hadoop-datanode-hadoop20.out datanode dead but pid file exists [ OK ] [root@hadoop20 init.d]#
