Hi Martinus,
Do you think you could attach namenode's log file to find out where is
the problem? Thank you.
Mohamed Elsayed
Bibliotheca Alexandrina
On 01/18/2012 11:14 AM, Martinus Martinus wrote:
Hi Mohamed,
Thanks for your explanation. I still have the same problem as before.
do you have any other suggestion?
Thanks.
On Wed, Jan 18, 2012 at 4:52 PM, Mohamed Elsayed
<mohammed.elsay...@bibalex.org <mailto:mohammed.elsay...@bibalex.org>>
wrote:
The core is locating bin/java. If you execute ls -l
/usr/lib/jvm/java-6-sun/bin, you will notice bin/java is a
symbolic link to jre/bin/java. So both of them are the same. Don't
worry about that.
Mohamed Elsayed
Bibliotheca Alexandrina
On 01/18/2012 10:25 AM, Martinus Martinus wrote:
Hi Mohamed,
Thanks for your answer. I have setup it before into something
like this :
JAVA_HOME=/usr/lib/jvm/java-6-sun
I don't know if that's should be the same or will it gave a
different result. I'll try it first.
Thanks.
On Wed, Jan 18, 2012 at 3:53 PM, Mohamed Elsayed
<mohammed.elsay...@bibalex.org
<mailto:mohammed.elsay...@bibalex.org>> wrote:
Hi Martinus,
As I remember, I started again from scratch and erased
everything related to hadoop in my machine. In my first run,
there was an error message (related to java) displayed after
executing bin/hadoop namenode -format. This message didn't
appear in my second run. So I believe your problem is in this
point. Keep you eyes on what is happening after executing
this command. FYI, you must set JAVA_HOME in
conf/hadoop-env.sh by doing the following:
file `which java`
file /etc/alternatives/java
JAVA_HOME=/usr/lib/jvm/java-6-openjdk/jre
If you still can't run the example, try to set
HADOOP_CLASSPATH in conf/hadoop-env.sh to the example's path
e.g.
HADOOP_CLASSPATH=../hadoop-0.20.203.0/hadoop-examples-0.20.203.0.jar.
But this variable is not necessary to fill.
If there is any error messages appeared after executing any
command, try to fix or write them here. I will try to help If
I can.
Mohamed Elsayed
Bibliotheca Alexandrina
On 01/18/2012 04:28 AM, Martinus Martinus wrote:
Hi Mohamed,
Did you found out how to handle this thing? Because when I
run the hadoop-0.20.2-example.jar wordcount input output it
just run, but it didn't gave any log message and it won't
stop running.
Thanks.
On Tue, Jan 17, 2012 at 7:29 PM, Mohamed Elsayed
<mohammed.elsay...@bibalex.org
<mailto:mohammed.elsay...@bibalex.org>> wrote:
Your case happened to me in the past. In first try to
start again from scratch and be sure that everything is
going well (working well e.g. namenode is working and
there is no java error) specifically after executing
bin/hadoop namenode -format. If you faced any hassles,
don't hesitate to state them here.
Mohamed Elsayed
Bibliotheca Alexandrina
On 01/16/2012 04:52 AM, Martinus Martinus wrote:
Hi Harsh,
I just reinstalled my master node again and it's worked
right now. But when I tried to run the example using
command bin/hadoop jar hadoop-0.20.2-examples.jar
wordcount input output, it just waiting and didn't gave
me anything and didn't stop either.
Thanks.
On Fri, Jan 13, 2012 at 8:22 PM, Harsh J
<ha...@cloudera.com <mailto:ha...@cloudera.com>> wrote:
What does the NameNode log in
$HADOOP_HOME/logs/hadoop-*namenode*.log carry?
On 13-Jan-2012, at 4:05 PM, Martinus Martinus wrote:
> Hi,
>
> I start-all.sh my hadoop master node, but I can't
find any namenode on it. Would anyone be so kindly
to tell me how to fix this problem?
>
> Thanks.
