Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
HDFS >> mail # user >> no namenode


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 <
[EMAIL PROTECTED]> 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 <
> [EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> 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.
>>>
>>>
>>
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB