Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # user >> Datanode not created on hadoop-0.20.203.0


Copy link to this message
-
Re: Datanode not created on hadoop-0.20.203.0
What user are you running as?

-Joey

On Thu, Jun 16, 2011 at 1:46 AM, rutesh <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I tried formatting the datanode too, but again same result:
>
> #hadoop datanode -format
> Unrecognized option: -jvm
> Could not create the Java virtual machine.
>
> Also, the datanodes have been defined in the slaves file. Is there any other
> workaround or process?
>
> With regards
> Rutesh
>
> On Wed, Jun 15, 2011 at 10:32 PM, <[EMAIL PROTECTED]> wrote:
>
>> You have to format the datanode too hadoop datanode -format also make sure
>> it is in the slaves file -
>>
>> Cheers -
>>
>> -----Original Message-----
>> From: Joey Echeverria [mailto:[EMAIL PROTECTED]]
>> Sent: Wednesday, June 15, 2011 12:01 PM
>> To: [EMAIL PROTECTED]
>> Subject: Re: Datanode not created on hadoop-0.20.203.0
>>
>> By any chance, are you running as root? If so, try running as a different
>> user.
>>
>> -Joey
>>
>> On Wed, Jun 15, 2011 at 12:53 PM, rutesh <[EMAIL PROTECTED]> wrote:
>> > Hi,
>> >
>> >   I am new to hadoop (Just 1 month old). These are the steps I followed
>> to
>> > install and run hadoop-0.20.203.0:
>> >
>> > 1) Downloaded tar file from
>> >
>> http://mirrors.axint.net/apache/hadoop/common/hadoop-0.20.203.0/hadoop-0.20.203.0rc1.tar.gz
>> .
>> > 2) Untarred it in /usr/local/ .
>> > 3) Set JAVA_HOME=/usr/lib/jvm/java-6-sun (which has already been
>> installed)
>> > 4) Modified the config files viz. core-site.xml , hdfs-site.xml and
>> > mapred-site.xml as provided on the single node installation page [
>> >
>> http://hadoop.apache.org/common/docs/r0.20.203.0/single_node_setup.html#PseudoDistributed
>> ].
>> > 5) Formatted the new distributed-filesystem using bin/hadoop namenode
>> > -format
>> > 6) Started the hdfs daemon using bin/start-dfs.sh
>> >
>> > Now, here is the error...
>> >
>> > # start-dfs.sh
>> > starting namenode, logging to
>> > /usr/local/hadoop/bin/../logs/hadoop-root-namenode-ip-10-98-94-62.out
>> > localhost: starting datanode, logging to
>> > /usr/local/hadoop/bin/../logs/hadoop-root-datanode-ip-10-98-94-62.out
>> > localhost: starting secondarynamenode, logging to
>> >
>> /usr/local/hadoop/bin/../logs/hadoop-root-secondarynamenode-ip-10-98-94-62.out
>> >
>> > The terminal says that datanode has been started, but when I run jps
>> > command, its shows different.
>> >
>> > # jps
>> > 395 Jps
>> > 32612 SecondaryNameNode
>> > 32442 NameNode
>> >
>> > And in the /usr/local/hadoop/logs/hadoop-root-datanode-ip-10-98-94-62.out
>> > this is the log:
>> >
>> > Unrecognized option: -jvm
>> > Could not create the Java virtual machine.
>> >
>> > My question is, can anybody tell me what is the error or what am I doing
>> > wrong, or in general, how I can make my datanode run?
>> >
>> > Thanks.
>> >
>> > With regards,
>> > Rutesh Chavda
>> >
>>
>>
>>
>> --
>> Joseph Echeverria
>> Cloudera, Inc.
>> 443.305.9434
>>
>>
>>
>

--
Joseph Echeverria
Cloudera, Inc.
443.305.9434