It looks like the native library is not compatible with your
environment. You should delete '/usr/local/hadoop/lib/native' directory
or compile source code to get your own native library.
Thanks,
Akira
(2014/07/03 15:05), Ritesh Kumar Singh wrote:
When I try to start dfs using start-dfs.sh I get this error message:
14/07/03 11:03:21 WARN util.NativeCodeLoader: Unable to load
native-hadoop library for your platform... using builtin-java classes
where applicable
Starting namenodes on [OpenJDK 64-Bit Server VM warning: You have loaded
library /usr/local/hadoop/lib/native/libhadoop.so.1.0.0 which might have
disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c
<libfile>', or link it with '-z noexecstack'.
localhost]
sed: -e expression #1, char 6: unknown option to `s'
Server: ssh: Could not resolve hostname Server: Name or service not known
-c: Unknown cipher type 'cd'
stack: ssh: Could not resolve hostname stack: Name or service not known
64-Bit: ssh: Could not resolve hostname 64-Bit: Name or service not known
guard.: ssh: Could not resolve hostname guard.: Name or service not known
The: ssh: Could not resolve hostname The: Name or service not known
guard: ssh: Could not resolve hostname guard: Name or service not known
might: ssh: Could not resolve hostname might: Name or service not known
stack: ssh: Could not resolve hostname stack: Name or service not known
will: ssh: Could not resolve hostname will: Name or service not known
the: ssh: Could not resolve hostname the: Name or service not known
fix: ssh: Could not resolve hostname fix: Name or service not known
VM: ssh: Could not resolve hostname VM: Name or service not known
You: ssh: Could not resolve hostname You: Name or service not known
which: ssh: Could not resolve hostname which: Name or service not known
It's: ssh: Could not resolve hostname It's: Name or service not known
disabled: ssh: Could not resolve hostname disabled: Name or service not
known
try: ssh: Could not resolve hostname try: Name or service not known
localhost: namenode running as process 4463. Stop it first.
library: ssh: Could not resolve hostname library: Name or service not known
with: ssh: Could not resolve hostname with: Name or service not known
the: ssh: Could not resolve hostname the: Name or service not known
warning:: ssh: Could not resolve hostname warning:: Name or service not
known
VM: ssh: Could not resolve hostname VM: Name or service not known
now.: ssh: Could not resolve hostname now.: Name or service not known
loaded: ssh: Could not resolve hostname loaded: Name or service not known
library: ssh: Could not resolve hostname library: Name or service not known
<libfile>',: ssh: Could not resolve hostname <libfile>',: Name or
service not known
to: ssh: connect to host to port 22: Connection refused
OpenJDK: ssh: Could not resolve hostname OpenJDK: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
with: ssh: Could not resolve hostname with: Name or service not known
fix: ssh: Could not resolve hostname fix: Name or service not known
noexecstack'.: ssh: Could not resolve hostname noexecstack'.: Name or
service not known
that: ssh: Could not resolve hostname that: Name or service not known
you: ssh: Could not resolve hostname you: Name or service not known
or: ssh: Could not resolve hostname or: Name or service not known
highly: ssh: Could not resolve hostname highly: Name or service not known
recommended: ssh: Could not resolve hostname recommended: Name or
service not known
'execstack: ssh: Could not resolve hostname 'execstack: Name or service
not known
link: ssh: Could not resolve hostname link: Name or service not known
it: ssh: Could not resolve hostname it: Name or service not known
'-z: ssh: Could not resolve hostname '-z: Name or service not known
localhost: datanode running as process 4561. Stop it first.
Starting secondary namenodes [OpenJDK 64-Bit Server VM warning: You have
loaded library /usr/local/hadoop/lib/native/libhadoop.so.1.0.0 which
might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c
<libfile>', or link it with '-z noexecstack'.
0.0.0.0]
sed: -e expression #1, char 6: unknown option to `s'
OpenJDK: ssh: Could not resolve hostname OpenJDK: Name or service not known
-c: Unknown cipher type 'cd'
VM: ssh: Could not resolve hostname VM: Name or service not known
The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
ECDSA key fingerprint is dd:64:53:7e:c0:62:40:c0:63:2b:5c:6d:1e:b6:cd:23.
Are you sure you want to continue connecting (yes/no)? might: ssh: Could
not resolve hostname might: Name or service not known
Server: ssh: Could not resolve hostname Server: Name or service not known
guard.: ssh: Could not resolve hostname guard.: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
You: ssh: Could not resolve hostname You: Name or service not known
The: ssh: Could not resolve hostname The: Name or service not known
which: ssh: Could not resolve hostname which: Name or service not known
have: ssh: Could not resolve hostname have: Name or service not known
disabled: ssh: Could not resolve hostname disabled: Name or service not
known
VM: ssh: Could not resolve hostname VM: Name or service not known
It's: ssh: Could not resolve hostname It's: Name or service not known
fix: ssh: Could not resolve hostname fix: Name or service not known
the: ssh: Could not resolve hostname the: Name or service not known
warning:: ssh: Could not resolve hostname warning:: Name or service not
known
will: ssh: Could not resolve hostname will: Name or service not known
the: ssh: Could not resolve hostname the: Name or service not known
library: ssh: Could not resolve hostname library: Name or service not known
that: ssh: Could not resolve hostname that: Name or service not known
highly: ssh: Could not resolve hostname highly: Name or service not known
'execstack: ssh: Could not resolve hostname 'execstack: Name or service
not known
try: ssh: Could not resolve hostname try: Name or service not known
guard: ssh: Could not resolve hostname guard: Name or service not known
64-Bit: ssh: Could not resolve hostname 64-Bit: Name or service not known
loaded: ssh: Could not resolve hostname loaded: Name or service not known
library: ssh: Could not resolve hostname library: Name or service not known
fix: ssh: Could not resolve hostname fix: Name or service not known
to: ssh: connect to host to port 22: Connection refused
link: ssh: Could not resolve hostname link: Name or service not known
stack: ssh: Could not resolve hostname stack: Name or service not known
'-z: ssh: Could not resolve hostname '-z: Name or service not known
you: ssh: Could not resolve hostname you: Name or service not known
with: ssh: Could not resolve hostname with: Name or service not known
with: ssh: Could not resolve hostname with: Name or service not known
recommended: ssh: Could not resolve hostname recommended: Name or
service not known
stack: ssh: Could not resolve hostname stack: Name or service not known
now.: ssh: Could not resolve hostname now.: Name or service not known
<libfile>',: ssh: Could not resolve hostname <libfile>',: Name or
service not known
or: ssh: Could not resolve hostname or: Name or service not known
noexecstack'.: ssh: Could not resolve hostname noexecstack'.: Name or
service not known
it: ssh: Could not resolve hostname it: Name or service not known
^C0.0.0.0: Host key verification failed.
^C
My core-site.xml file contains this:
|<configuration>
<property>
<name>fs.default.name <http://fs.default.name></name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>|
My .profile(replacement for .bashrc) contains these lines:
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64 export
HADOOP_INSTALL=/usr/local/hadoop export
PATH=$PATH:$HADOOP_INSTALL/bin export
PATH=$PATH:$HADOOP_INSTALL/sbin export
HADOOP_MAPRED_HOME=$HADOOP_INSTALL export
HADOOP_COMMON_HOME=$HADOOP_INSTALL export
HADOOP_HDFS_HOME=$HADOOP_INSTALL export YARN_HOME=$HADOOP_INSTALL
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib"
And I can easily ssh my localhost saying:
ssh localhost Welcome to Linux Mint 16 Petra (GNU/Linux
3.11.0-12-generic x86_64)
Welcome to Linux Mint * Documentation: http://www.linuxmint.com
<http://www.linuxmint.com/> Last login: Wed Jul 2 16:51:15 2014 from
localhost
