[Hadoop-common-user] Task tracker and Data node not stopping

Hi,

I am using a cluster of two machines one master and one slave. When i
try to stop the cluster using stop-all.sh it is displaying as below. the
task tracker and datanode are also not stopped in the slave. Please help me
in solving this.

stopping jobtracker
160.110.150.29: no tasktracker to stop
stopping namenode
160.110.150.29: no datanode to stop
localhost: stopping secondarynamenode