3  cat /opt/mapr/conf/mapr-clusters.conf
    4  ping localhost
    5  ping localhost.localdomain
    6  jps
    7  hadoop fs -ls /
    8  id mapr
    9  sudo su mapr
   10  maprlogin print
   11  maprlogin password
   12  passwd
   13  maprlogin password
   14  hadoop fs -ls /
   15  ifconfig
   16  maprcli list cldbmaster
   17  maprcli node cldbmaster
   18  hadoop fs -Dfs.mapr.trace=debug -ls /
   19  vi /opt/mapr/logs/cldb.log
   20  jps
   21  service mapr-warden restart
   22  tail -f /opt/mapr/logs/warden.log
   23  lsblk
   24  cat /opt/mapr/conf/disktab
   25  ps -ef | grep mapr
   26  ps -ef | grep mfs
   27  cat /opt/mapr/conf/mapr-clusters.conf
   28  jps
   29  hadoop fs -ls /
   30  vi /opt/mapr/logs/cldb.log
   31  date
   32  vi /opt/mapr/logs/cldb.log
   33  hadoop fs -ls /
   34  ifconfig
   35  vi /opt/mapr/logs/mfs.log-5
   36  vi /opt/mapr/logs/mfs.log-3
   37  vi /opt/mapr/logs/cldb.log
   38  hadoop fs -Dfs.mapr.trace=debug -ls /
   39  jps
   40  netstat -anlp | grep 7222
   41  netstat -anlp | grep 5181
   42  vi /opt/mapr/zookeeper/zookeeper-3.4.11/logs/zookeeper.log
   43  jps
   44  sudo su mapr
   45  maprcli node cldbmaster
   46  maprcli node
   47  maprcli node listcldbs
   48  vi /opt/mapr/logs/maprcli-root-0.log
   49  service mapr-cldb restart
   50  service mapr-cldb status
   51  ps -ef | grep 21584
   52  systemctl status mapr-cldb.service
   53  systemctl restart mapr-cldb.service
   54  systemctl status mapr-cldb.service
   55  journalctl -xe
   56  systemctl stop mapr-cldb.service
   57  systemctl start mapr-cldb.service
   58  systemctl status mapr-cldb.service
   59  jps
   60  kill -9 21584
   61  jps
   62  tail -f /opt/mapr/logs/cldb.log
   63  jps
   64  tail -f /opt/mapr/logs/cldb.log
   65  maprcli node listcldbs
   66  tail -f /opt/mapr/logs/cldb.log
   67  maprcli node listcldbs
   68  vi /opt/mapr/conf/mapr-clusters.conf
   69  cat /opt/mapr/conf/mapr-clusters.conf
   70  dig localhost.localdomain
   71  ping localhost.localdomain
   72  hostname -f
   73  vi /opt/mapr/logs/configure.log
   74  ifconfig
   75  history