"cannot execute binary file: Exec format error" hdfs command

Question

When I try to run the command

hdfs nodename -format

I get this error message:

/usr/local/hadoop/bin/hdfs: line 304: /usr/local/Java/jdk1.7.0_79/bin/java: cannot execute binary file: Exec format error

/usr/local/hadoop/bin/hdfs: line 304: /usr/local/Java/jdk1.7.0_79/bin/java: Success

Now, I opened hdfs file and this is the line 304:

exec "$JAVA" -Dproc_$COMMAND $JAVA_HEAP_MAX $HADOOP_OPTS $CLASS "$@"

I don't know what java is trying to execute, but something is wrong in this execution. Please help me to figure out why. Thanks in advance

I'm assuming your command is a typo? The command would be hdfs namenode -format — rmlan
– rmlan, Commented Jul 21, 2015 at 16:35

Abdulrahman · Accepted Answer · 2015-07-22 09:08:59Z

2

Check the version of Java that you installed on your system. Use the following command to see your machine architecture:

uname -a

It should be the same as the version of Java when you execute. :

java -version

Let's say both of them are compiled for 64-Bit architecture.

answered Jul 22, 2015 at 9:08

Abdulrahman

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6 Comments

GianniPele Over a year ago

Thanks for you answer. Unfortunately, system is 32-bit, and java is correctly installed for 32-bit.

Abdulrahman Over a year ago

what is your kernel version and release? use (uname -v) and (uname -r)

GianniPele Over a year ago

uname -v -> #64-Ubuntu SMP Mon Sep 22 21:30:01 UTC 2014

GianniPele Over a year ago

uname -r -> 3.13.0-37-generic

Abdulrahman Over a year ago

type this on your system. and post the result please. echo $JAVE_HOME

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