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From "Ashok Varma PSG Tech (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-407) data node startup problem
Date Thu, 27 Aug 2009 09:34:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748314#action_12748314
] 

Ashok Varma PSG Tech commented on HDFS-407:
-------------------------------------------

Thanks for your reply,
Ashok Varma




> data node startup problem
> -------------------------
>
>                 Key: HDFS-407
>                 URL: https://issues.apache.org/jira/browse/HDFS-407
>             Project: Hadoop HDFS
>          Issue Type: Test
>         Environment: Processor: Intel Pentium D 2.8 GHz, OS: Fedora 8, GuestOS Fedora
8, RAM: 2 GB (total), RAM for GuestOS: 512 MB
> Hadoop version : 0.18.0
>            Reporter: Ashok Varma PSG Tech
>   Original Estimate: 336h
>  Remaining Estimate: 336h
>
> Hi,
> I have set up a cluster using dom0( a.k.a Host OS ) and one domU ( a.k.a Guest OS ) both
are running on Fedora -8 32-bit .
> Para Virtualization used: XEN Version 3.1.0-13
> HostOS host name is hadoop10 configured as name-node/job tracker and it will acts as
data-node/task tracker as well in order to spread the data storage and GuestOS name is hadoop11
it is configured as data-node/task tracker
> i'm facing new problem...trying to start HDFS daemons but i'm getting following errors:
> 1) Permission denied error in line number [3] below
> 2) hadoop11: no datanode to stop at line number [8]
> but i can able to SSH to hadoop11( GuestOS/slave )
> ---------------------------------------------------------------------
> [hadoop@hadoop10 hadoop-0.18.0]$ bin/start-dfs.sh
> [1] starting namenode, logging to /home/hadoop/hadoop-0.18.0/bin/../logs/hadoop-hadoop-namenode-hadoop10.out
> [2] hadoop11: starting datanode, logging to /home/hadoop/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-hadoop11.out
> [3] hadoop11: /home/hadoop/hadoop-0.18.0/bin/hadoop-daemon.sh: line 118: /tmp/hadoop-hadoop-datanode.pid:
Permission denied
> [4] hadoop10: starting datanode, logging to /home/hadoop/hadoop-0.18.0/bin/../logs/hadoop-hadoop-datanode-hadoop10.out
> [5] hadoop10: starting secondarynamenode, logging to /home/hadoop/hadoop-0.18.0/bin/../logs/hadoop-hadoop-secondarynamenode-hadoop10.out
> [6] [hadoop@hadoop10 hadoop-0.18.0]$ bin/stop-dfs.sh
> [7] stopping namenode
> [8] hadoop11: no datanode to stop
> [9] hadoop10: stopping datanode
> [10] hadoop10: stopping secondarynamenode
> [11] [hadoop@hadoop10 hadoop-0.18.0]$ ssh hadoop11    ----------- |
> [12] Last login: Tue Oct  7 18:07:20 2008 from hadoop10    -----------|--------->
I can able to SSH to slave ( hadoop11 ) from master ( hadoop10)
> [13] [hadoop@hadoop11 ~]$                              --------------------------------|
> ------------------------------------------------------------------------------------------------
> Whats going wrong over here??  

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