hadoop - Restart task tracker and job tracker service (task tracker and job tracker) in CDH4 -


how restart task trackers , job tracker using cdh4 command line?

i tried following given script got error

[root@adc1210765 bin]# ./stop-mapred.sh /usr/lib/hadoop-0.20-mapreduce/bin/../conf no jobtracker stop cat: /usr/lib/hadoop-0.20-mapreduce/bin/../conf/slaves: no such file or directory

i want restart instance of tasktracker running @ cluster nodes

you must on each of task trackers

sudo service hadoop-0.20-mapreduce-tasktracker restart

and on job tracker

sudo service hadoop-0.20-mapreduce-jobtracker restart

you can use stop , start in place of restart. might have change hadoop version number.

http://www.cloudera.com/content/cloudera-content/cloudera-docs/cdh4/latest/cdh4-installation-guide/cdh4ig_topic_11_3.html?scroll=topic_11_3


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