Connecting to 192.168.3.110:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
Last login: Tue Jul 19 00:25:20 2016 from 192.168.3.101
[root@cdh1 ~]# cat /etc/sysconfig/network
NETWORKING=yes
#HOSTNAME=centos6cdh1
HOSTNAME=cdh1
[root@cdh1 ~]# hadoop dfsadmin -report
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
report: Call From cdh1/192.168.3.110 to cdh1:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
[root@cdh1 ~]# ps -e | grep ssh
1541 ? 00:00:00 sshd
2019 ? 00:00:00 sshd
[root@cdh1 ~]# ssh localhost
The authenticity of host 'localhost (127.0.0.1)' can't be established.
RSA key fingerprint is af:36:2d:e5:e2:04:e3:c5:e8:50:92:c8:f1:2d:97:09.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
root@localhost's password:
Permission denied, please try again.
root@localhost's password:
Permission denied, please try again.
root@localhost's password:
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
[root@cdh1 ~]# ll
total 104
-rw-------. 1 root root 2241 Jul 19 2016 anaconda-ks.cfg
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Desktop
-rw-r--r--. 1 root root 67918 Jul 19 2016 install.log
-rw-r--r--. 1 root root 14677 Jul 19 2016 install.log.syslog
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Public
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Templates
[root@cdh1 ~]# mkdir sshlocal
[root@cdh1 ~]# cd sshlocal/
[root@cdh1 sshlocal]# LL
-bash: LL: command not found
[root@cdh1 sshlocal]# ll
total 0
[root@cdh1 sshlocal]# ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
Generating public/private dsa key pair.
Your identification has been saved in /root/.ssh/id_dsa.
Your public key has been saved in /root/.ssh/id_dsa.pub.
The key fingerprint is:
8d:50:e3:aa:22:9e:11:0d:8a:4a:2f:36:56:85:85:95 root@cdh1
The key's randomart image is:
+--[ DSA 1024]----+
| oo. o |
| .oE o . |
| . . .. . |
|o o . o o |
|oo o . S . |
|o + . |
|o*... |
|+.=. |
| o |
+-----------------+
[root@cdh1 sshlocal]# ll
total 0
[root@cdh1 sshlocal]# cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
[root@cdh1 sshlocal]# ll
total 0
[root@cdh1 sshlocal]# ls -l ~/.ssh/
total 16
-rw-r--r--. 1 root root 599 Jul 19 00:38 authorized_keys
-rw-------. 1 root root 668 Jul 19 00:37 id_dsa
-rw-r--r--. 1 root root 599 Jul 19 00:37 id_dsa.pub
-rw-r--r--. 1 root root 391 Jul 19 00:36 known_hosts
[root@cdh1 sshlocal]# ssh localhost
Last login: Tue Jul 19 00:33:36 2016 from 192.168.3.101
[root@cdh1 ~]# chmod 700 ~/.ssh
[root@cdh1 ~]# chmod 644 ~/.ssh/authorized_keys
[root@cdh1 ~]# ls -l ~/.ssh/
total 16
-rw-r--r--. 1 root root 599 Jul 19 00:38 authorized_keys
-rw-------. 1 root root 668 Jul 19 00:37 id_dsa
-rw-r--r--. 1 root root 599 Jul 19 00:37 id_dsa.pub
-rw-r--r--. 1 root root 391 Jul 19 00:36 known_hosts
[root@cdh1 ~]# exit
logout
Connection to localhost closed.
[root@cdh1 sshlocal]# ll
total 0
[root@cdh1 sshlocal]# chmod 700 ~/.ssh
[root@cdh1 sshlocal]# chmod 644 ~/.ssh/authorized_keys
[root@cdh1 sshlocal]# ls -l ~/.ssh/
total 16
-rw-r--r--. 1 root root 599 Jul 19 00:38 authorized_keys
-rw-------. 1 root root 668 Jul 19 00:37 id_dsa
-rw-r--r--. 1 root root 599 Jul 19 00:37 id_dsa.pub
-rw-r--r--. 1 root root 391 Jul 19 00:36 known_hosts
[root@cdh1 sshlocal]# ls -a ~/
. .bash_logout .config .esd_auth .gnote .gvfs install.log.syslog Public sshlocal
.. .bash_profile .cshrc .gconf .gnupg .ICEauthority .kde .pulse .tcshrc
anaconda-ks.cfg .bashrc .dbus .gconfd .gstreamer-0.10 .imsettings.log .local .pulse-cookie Templates
.bash_history .cache Desktop .gnome2 .gtk-bookmarks install.log .nautilus .ssh .viminfo
[root@cdh1 sshlocal]# ls -l ~/
total 108
-rw-------. 1 root root 2241 Jul 19 2016 anaconda-ks.cfg
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Desktop
-rw-r--r--. 1 root root 67918 Jul 19 2016 install.log
-rw-r--r--. 1 root root 14677 Jul 19 2016 install.log.syslog
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Public
drwxr-xr-x. 2 root root 4096 Jul 19 00:37 sshlocal
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Templates
[root@cdh1 sshlocal]# ls -la ~/
total 232
dr-xr-x---. 21 root root 4096 Jul 19 00:37 .
dr-xr-xr-x. 27 root root 4096 Jul 19 00:33 ..
-rw-------. 1 root root 2241 Jul 19 2016 anaconda-ks.cfg
-rw-------. 1 root root 2091 Jul 19 00:40 .bash_history
-rw-r--r--. 1 root root 18 May 20 2009 .bash_logout
-rw-r--r--. 1 root root 176 May 20 2009 .bash_profile
-rw-r--r--. 1 root root 176 Sep 23 2004 .bashrc
drwxr-xr-x. 2 root root 4096 Jul 18 23:09 .cache
drwx------. 6 root root 4096 Jul 19 00:08 .config
-rw-r--r--. 1 root root 100 Sep 23 2004 .cshrc
drwx------. 3 root root 4096 Jul 18 23:03 .dbus
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Desktop
-rw-------. 1 root root 16 Jul 18 23:04 .esd_auth
drwx------. 4 root root 4096 Jul 19 00:08 .gconf
drwx------. 2 root root 4096 Jul 19 00:31 .gconfd
drwx------. 5 root root 4096 Jul 18 23:06 .gnome2
drwxr-xr-x. 3 root root 4096 Jul 18 23:04 .gnote
drwx------. 2 root root 4096 Jul 19 00:08 .gnupg
drwxr-xr-x. 2 root root 4096 Jul 18 23:06 .gstreamer-0.10
-rw-r--r--. 1 root root 107 Jul 18 23:04 .gtk-bookmarks
drwx------. 2 root root 4096 Jul 18 23:03 .gvfs
-rw-------. 1 root root 620 Jul 19 00:08 .ICEauthority
-rw-r--r--. 1 root root 623 Jul 19 00:08 .imsettings.log
-rw-r--r--. 1 root root 67918 Jul 19 2016 install.log
-rw-r--r--. 1 root root 14677 Jul 19 2016 install.log.syslog
drwx------. 3 root root 4096 Jul 18 23:07 .kde
drwxr-xr-x. 3 root root 4096 Jul 18 23:03 .local
drwxr-xr-x. 2 root root 4096 Jul 18 23:04 .nautilus
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Public
drwx------. 2 root root 4096 Jul 18 23:04 .pulse
-rw-------. 1 root root 256 Jul 18 23:03 .pulse-cookie
drwx------. 2 root root 4096 Jul 19 00:38 .ssh
drwxr-xr-x. 2 root root 4096 Jul 19 00:37 sshlocal
-rw-r--r--. 1 root root 129 Dec 4 2004 .tcshrc
drwxr-xr-x. 2 root root 4096 Jul 18 23:03 Templates
-rw-------. 1 root root 5643 Jul 19 00:32 .viminfo
[root@cdh1 sshlocal]#
[root@cdh1 sshlocal]#
[root@cdh1 sshlocal]# hadoop dfsadmin -report
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
report: Call From cdh1/192.168.3.110 to cdh1:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
[root@cdh1 sshlocal]# hadoop namenode -format
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
16/07/19 00:44:03 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = cdh1/192.168.3.110
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 2.6.0
STARTUP_MSG: classpath = /user/local/hadoop-2.6.0/etc/hadoop:/user/local/hadoop-2.6.0/share/hadoop/common/lib/log4j-1.2.17.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/paranamer-2.3.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jersey-json-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-httpclient-3.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jsp-api-2.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/httpclient-4.2.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/xz-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/hadoop-auth-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/htrace-core-3.0.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jsch-0.1.42.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/zookeeper-3.4.6.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-compress-1.4.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/httpcore-4.2.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/mockito-all-1.8.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/servlet-api-2.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-cli-1.2.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-codec-1.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/avro-1.7.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/activation-1.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-net-3.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jersey-core-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jets3t-0.9.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jsr305-1.3.9.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-collections-3.2.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jetty-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/stax-api-1.0-2.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/hamcrest-core-1.3.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jettison-1.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/asm-3.2.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/gson-2.2.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-logging-1.1.3.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-lang-2.6.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-configuration-1.6.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-io-2.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-el-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jetty-util-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/hadoop-annotations-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/junit-4.11.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-digester-1.8.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/xmlenc-0.52.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/guava-11.0.2.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/commons-math3-3.1.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/curator-client-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/netty-3.6.2.Final.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/jersey-server-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/user/local/hadoop-2.6.0/share/hadoop/common/lib/curator-framework-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/hadoop-common-2.6.0-tests.jar:/user/local/hadoop-2.6.0/share/hadoop/common/hadoop-common-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/common/hadoop-nfs-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/htrace-core-3.0.4.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/asm-3.2.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-io-2.4.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-el-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/guava-11.0.2.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/hadoop-hdfs-2.6.0-tests.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/hadoop-hdfs-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/hdfs/hadoop-hdfs-nfs-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/log4j-1.2.17.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/aopalliance-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jersey-json-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/xz-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/servlet-api-2.5.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-cli-1.2.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-codec-1.4.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/activation-1.1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jersey-core-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-collections-3.2.1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jetty-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jettison-1.1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/asm-3.2.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-lang-2.6.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jersey-client-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/commons-io-2.4.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jline-0.9.94.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/guice-3.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/guava-11.0.2.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/javax.inject-1.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jersey-server-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-tests-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-api-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-common-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-client-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-registry-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-common-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/xz-1.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/asm-3.2.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/guice-3.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/hadoop-annotations-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/junit-4.11.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/javax.inject-1.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-tests.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.6.0.jar:/user/local/hadoop-2.6.0/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.6.0.jar:/user/local/hadoop-2.6.0/contrib/capacity-scheduler/*.jar:/user/local/hadoop-2.6.0/contrib/capacity-scheduler/*.jar
STARTUP_MSG: build = Unknown -r Unknown; compiled by 'root' on 2016-06-16T22:12Z
STARTUP_MSG: java = 1.7.0_67
************************************************************/
16/07/19 00:44:03 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
16/07/19 00:44:03 INFO namenode.NameNode: createNameNode [-format]
Formatting using clusterid: CID-63af8bd6-576e-4f96-9b43-51080e8fbf88
16/07/19 00:44:05 INFO namenode.FSNamesystem: No KeyProvider found.
16/07/19 00:44:05 INFO namenode.FSNamesystem: fsLock is fair:true
16/07/19 00:44:06 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
16/07/19 00:44:06 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
16/07/19 00:44:06 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
16/07/19 00:44:06 INFO blockmanagement.BlockManager: The block deletion will start around 2016 Jul 19 00:44:06
16/07/19 00:44:06 INFO util.GSet: Computing capacity for map BlocksMap
16/07/19 00:44:06 INFO util.GSet: VM type = 32-bit
16/07/19 00:44:06 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB
16/07/19 00:44:06 INFO util.GSet: capacity = 2^22 = 4194304 entries
16/07/19 00:44:06 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
16/07/19 00:44:06 INFO blockmanagement.BlockManager: defaultReplication = 1
16/07/19 00:44:06 INFO blockmanagement.BlockManager: maxReplication = 512
16/07/19 00:44:06 INFO blockmanagement.BlockManager: minReplication = 1
16/07/19 00:44:06 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
16/07/19 00:44:06 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks = false
16/07/19 00:44:06 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
16/07/19 00:44:06 INFO blockmanagement.BlockManager: encryptDataTransfer = false
16/07/19 00:44:06 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000
16/07/19 00:44:06 INFO namenode.FSNamesystem: fsOwner = root (auth:SIMPLE)
16/07/19 00:44:06 INFO namenode.FSNamesystem: supergroup = supergroup
16/07/19 00:44:06 INFO namenode.FSNamesystem: isPermissionEnabled = true
16/07/19 00:44:06 INFO namenode.FSNamesystem: HA Enabled: false
16/07/19 00:44:06 INFO namenode.FSNamesystem: Append Enabled: true
16/07/19 00:44:07 INFO util.GSet: Computing capacity for map INodeMap
16/07/19 00:44:07 INFO util.GSet: VM type = 32-bit
16/07/19 00:44:07 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
16/07/19 00:44:07 INFO util.GSet: capacity = 2^21 = 2097152 entries
16/07/19 00:44:07 INFO namenode.NameNode: Caching file names occuring more than 10 times
16/07/19 00:44:07 INFO util.GSet: Computing capacity for map cachedBlocks
16/07/19 00:44:07 INFO util.GSet: VM type = 32-bit
16/07/19 00:44:07 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
16/07/19 00:44:07 INFO util.GSet: capacity = 2^19 = 524288 entries
16/07/19 00:44:07 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
16/07/19 00:44:07 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
16/07/19 00:44:07 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000
16/07/19 00:44:07 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
16/07/19 00:44:07 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
16/07/19 00:44:07 INFO util.GSet: Computing capacity for map NameNodeRetryCache
16/07/19 00:44:07 INFO util.GSet: VM type = 32-bit
16/07/19 00:44:07 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
16/07/19 00:44:07 INFO util.GSet: capacity = 2^16 = 65536 entries
16/07/19 00:44:07 INFO namenode.NNConf: ACLs enabled? false
16/07/19 00:44:07 INFO namenode.NNConf: XAttrs enabled? true
16/07/19 00:44:07 INFO namenode.NNConf: Maximum size of an xattr: 16384
16/07/19 00:44:07 INFO namenode.FSImage: Allocated new BlockPoolId: BP-550776906-192.168.3.110-1468860247545
16/07/19 00:44:07 INFO common.Storage: Storage directory /home/hadoop/name has been successfully formatted.
16/07/19 00:44:07 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
16/07/19 00:44:07 INFO util.ExitUtil: Exiting with status 0
16/07/19 00:44:07 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at cdh1/192.168.3.110
************************************************************/
[root@cdh1 sshlocal]# hadoop dfsadmin -report
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
report: Call From cdh1/192.168.3.110 to cdh1:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
[root@cdh1 sshlocal]# ssh cdh1
The authenticity of host 'cdh1 (192.168.3.110)' can't be established.
RSA key fingerprint is af:36:2d:e5:e2:04:e3:c5:e8:50:92:c8:f1:2d:97:09.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'cdh1,192.168.3.110' (RSA) to the list of known hosts.
Last login: Tue Jul 19 00:42:17 2016 from 192.168.3.101
[root@cdh1 ~]# hostname
cdh1
[root@cdh1 ~]# ssh cdh1
Last login: Tue Jul 19 00:47:24 2016 from cdh1
[root@cdh1 ~]# ssh localhost
Last login: Tue Jul 19 00:47:49 2016 from cdh1
[root@cdh1 ~]# jps
2418 Jps
[root@cdh1 ~]# jps
2430 Jps
[root@cdh1 ~]# start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [cdh1]
cdh1: starting namenode, logging to /user/local/hadoop-2.6.0/logs/hadoop-root-namenode-cdh1.out
localhost: starting datanode, logging to /user/local/hadoop-2.6.0/logs/hadoop-root-datanode-cdh1.out
Starting secondary namenodes [cdh1]
cdh1: starting secondarynamenode, logging to /user/local/hadoop-2.6.0/logs/hadoop-root-secondarynamenode-cdh1.out
starting yarn daemons
starting resourcemanager, logging to /user/local/hadoop-2.6.0/logs/yarn-root-resourcemanager-cdh1.out
localhost: starting nodemanager, logging to /user/local/hadoop-2.6.0/logs/yarn-root-nodemanager-cdh1.out
[root@cdh1 ~]# jps
2556 NameNode
3084 NodeManager
2985 ResourceManager
3376 Jps
2828 SecondaryNameNode
2653 DataNode
[root@cdh1 ~]# hadoop dfsadmin -report
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
Configured Capacity: 29591990272 (27.56 GB)
Present Capacity: 13468934144 (12.54 GB)
DFS Remaining: 13468909568 (12.54 GB)
DFS Used: 24576 (24 KB)
DFS Used%: 0.00%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
-------------------------------------------------
Live datanodes (1):
Name: 192.168.3.110:50010 (cdh1)
Hostname: cdh1
Decommission Status : Normal
Configured Capacity: 29591990272 (27.56 GB)
DFS Used: 24576 (24 KB)
Non DFS Used: 16123056128 (15.02 GB)
DFS Remaining: 13468909568 (12.54 GB)
DFS Used%: 0.00%
DFS Remaining%: 45.52%
Configured Cache Capacity: 0 (0 B)
Cache Used: 0 (0 B)
Cache Remaining: 0 (0 B)
Cache Used%: 100.00%
Cache Remaining%: 0.00%
Xceivers: 1
Last contact: Tue Jul 19 00:49:56 CST 2016
[root@cdh1 ~]# /etc/init.d/iptables status
Table: mangle
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 CHECKSUM udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68 CHECKSUM fill
Table: nat
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 MASQUERADE tcp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
2 MASQUERADE udp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
3 MASQUERADE all -- 192.168.122.0/24 !192.168.122.0/24
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
3 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:67
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
6 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
7 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
8 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
9 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED
2 ACCEPT all -- 192.168.122.0/24 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
5 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
6 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-is-bridged
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
[root@cdh1 ~]# service iptables status
Table: mangle
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 CHECKSUM udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68 CHECKSUM fill
Table: nat
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 MASQUERADE tcp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
2 MASQUERADE udp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
3 MASQUERADE all -- 192.168.122.0/24 !192.168.122.0/24
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
3 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:67
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
6 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
7 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
8 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
9 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED
2 ACCEPT all -- 192.168.122.0/24 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
5 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
6 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-is-bridged
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
[root@cdh1 ~]# /etc/init.d/iptables status
Table: mangle
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 CHECKSUM udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68 CHECKSUM fill
Table: nat
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 MASQUERADE tcp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
2 MASQUERADE udp -- 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535
3 MASQUERADE all -- 192.168.122.0/24 !192.168.122.0/24
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
3 ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:67
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
6 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
7 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
8 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
9 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED
2 ACCEPT all -- 192.168.122.0/24 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
5 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
6 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-is-bridged
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
[root@cdh1 ~]# ping www.baidu.com
ping: unknown host www.baidu.com
[root@cdh1 ~]# ping www.baidu.com
ping: unknown host www.baidu.com
[root@cdh1 ~]# ping www.baidu.com
ping: unknown host www.baidu.com
[root@cdh1 ~]# ping 192.168.3.101
PING 192.168.3.101 (192.168.3.101) 56(84) bytes of data.
64 bytes from 192.168.3.101: icmp_seq=1 ttl=128 time=0.464 ms
64 bytes from 192.168.3.101: icmp_seq=2 ttl=128 time=0.549 ms
64 bytes from 192.168.3.101: icmp_seq=3 ttl=128 time=0.446 ms
64 bytes from 192.168.3.101: icmp_seq=4 ttl=128 time=0.445 ms
64 bytes from 192.168.3.101: icmp_seq=5 ttl=128 time=0.397 ms
64 bytes from 192.168.3.101: icmp_seq=6 ttl=128 time=0.639 ms
^C
--- 192.168.3.101 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5397ms
rtt min/avg/max/mdev = 0.397/0.490/0.639/0.080 ms
[root@cdh1 ~]# ping 192.168.3.101 -c 4
PING 192.168.3.101 (192.168.3.101) 56(84) bytes of data.
64 bytes from 192.168.3.101: icmp_seq=1 ttl=128 time=0.685 ms
64 bytes from 192.168.3.101: icmp_seq=2 ttl=128 time=0.590 ms
64 bytes from 192.168.3.101: icmp_seq=3 ttl=128 time=0.517 ms
64 bytes from 192.168.3.101: icmp_seq=4 ttl=128 time=0.425 ms
--- 192.168.3.101 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 0.425/0.554/0.685/0.096 ms
[root@cdh1 ~]#
[root@cdh1 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
# No nameservers found; try putting DNS servers into your
# ifcfg files in /etc/sysconfig/network-scripts like so:
#
# DNS1=xxx.xxx.xxx.xxx
# DNS2=xxx.xxx.xxx.xxx
# DOMAIN=lab.foo.com bar.foo.com
[root@cdh1 ~]# vim /etc/resolv.conf
[root@cdh1 ~]# cat /etc/resolv.conf
# Generated by NetworkManager
# No nameservers found; try putting DNS servers into your
# ifcfg files in /etc/sysconfig/network-scripts like so:
#
# DNS1=xxx.xxx.xxx.xxx
# DNS2=xxx.xxx.xxx.xxx
# DOMAIN=lab.foo.com bar.foo.com
nameserver 8.8.8.8
nameserver 114.114.114.114
[root@cdh1 ~]# ping www.baidu.com
PING www.a.shifen.com (119.75.218.70) 56(84) bytes of data.
64 bytes from 119.75.218.70: icmp_seq=1 ttl=56 time=4.13 ms
64 bytes from 119.75.218.70: icmp_seq=2 ttl=56 time=3.43 ms
64 bytes from 119.75.218.70: icmp_seq=3 ttl=56 time=10.3 ms
64 bytes from 119.75.218.70: icmp_seq=4 ttl=56 time=27.3 ms
64 bytes from 119.75.218.70: icmp_seq=5 ttl=56 time=21.5 ms
64 bytes from 119.75.218.70: icmp_seq=6 ttl=56 time=6.50 ms
64 bytes from 119.75.218.70: icmp_seq=7 ttl=56 time=3.18 ms
64 bytes from 119.75.218.70: icmp_seq=8 ttl=56 time=6.07 ms
64 bytes from 119.75.218.70: icmp_seq=9 ttl=56 time=4.96 ms
64 bytes from 119.75.218.70: icmp_seq=10 ttl=56 time=6.33 ms
^C
--- www.a.shifen.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 18774ms
rtt min/avg/max/mdev = 3.186/9.378/27.333/7.871 ms
[root@cdh1 ~]# hadoop dfsadmin -report failed
最新推荐文章于 2023-09-23 21:52:21 发布
本文详细记录了Hadoop集群的搭建过程，包括SSH免密登录配置、HDFS格式化、启动所有Hadoop服务以及检查Hadoop集群状态等关键步骤。
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