Database Reference
In-Depth Information
Going to retain 1 images with txid >= 0
15/01/20 23:03:16 INFO util.ExitUtil: Exiting with status 0
15/01/20 23:03:16 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at blackwidow/127.0.1.1
************************************************************/
You may observe that the storage directory is set to
/tmp/hadoop-<username>/
dfs/name
by default. You may change it to a sensible location by editing configuration
XML. Alternatively, it will serve its purpose to demonstrate capability.
Let's start everything up and see whether we are OK:
# Start Hadoop services locally
$ sbin/start-dfs.sh
Starting namenodes on [localhost]
localhost: Warning: Permanently added 'localhost' (ECDSA)
to the list of known hosts.
localhost: starting namenode, logging to /home/naishe/apps/
hadoop-2.6.0/logs/hadoop-naishe-namenode-blackwidow.out
localhost: Warning: Permanently added 'localhost' (ECDSA)
to the list of known hosts.
localhost: starting datanode, logging to /home/naishe/apps/
hadoop-2.6.0/logs/hadoop-naishe-datanode-blackwidow.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: Warning: Permanently added '0.0.0.0' (ECDSA) to
the list of known hosts.
0.0.0.0: starting secondarynamenode, logging to /home/
naishe/apps/hadoop-2.6.0/logs/
hadoop-naishe-secondarynamenode-blackwidow.out
# Test if all services are running
$ jps
22194 NameNode
22565 SecondaryNameNode
22314 DataNode
22754 Jps
