Are you able to telnet ping. Check the firewalls as well
On Jun 29, 2016 12:39 AM, "Aneela Saleem" wrote:
> Hi all,
>
> I have setup two nodes cluster with security enabled. I have everything
> running successful like namenode, datanode, resourcemanager, nodemanager,
> jobhistoryserver etc. But d
Thanks Sreebalineni for the response.
This is the result of the *netstat -a | grep 8020* command
tcp0 0 hadoop-master:8020 *:* LISTEN
tcp0 0 hadoop-master:33356 hadoop-master:8020
ESTABLISHED
tcp0 0 hadoop-master:8020 hadoo
Following is the result of telnet
Trying 192.168.23.206...
Connected to hadoop-master.
Escape character is '^]'.
On Wed, Jun 29, 2016 at 3:57 AM, Aneela Saleem
wrote:
> Thanks Sreebalineni for the response.
>
> This is the result of the *netstat -a | grep 8020* command
>
> tcp0 0 h
ailto:ane...@platalytics.com>>
Date: 29 June 2016 at 10:16:36 GMT+5
To: "sreebalineni ." mailto:sreebalin...@gmail.com>>
Subject: Re: datanode is unable to connect to namenode
Attached are the log files for datanode and namenode. Also i have attached
hdfs-site.xml for namenode
>
>
> *From:* Aneela Saleem [mailto:ane...@platalytics.com]
> *Sent:* 29 June 2016 21:35
> *To:* user@hadoop.apache.org
> *Subject:* Fwd: datanode is unable to connect to namenode
>
>
>
>
>
> Sent from my iPhone
>
>
> Begin forwarded message:
>
> *
com>>
*Date:* 29 June 2016 at 10:16:36 GMT+5
*To:* "sreebalineni ." mailto:sreebalin...@gmail.com>>
*Subject:* *Re: datanode is unable to connect to namenode*
Attached are the log files for datanode and namenode. Also i
have attached hd
menode side.
-Vinay
From: Aneela Saleem [mailto:ane...@platalytics.com]
Sent: 30 June 2016 13:24
To: Vinayakumar B
Cc: user@hadoop.apache.org
Subject: Re: datanode is unable to connect to namenode
Thanks Vinayakumar
Yes you got it right i was using different principal names i.e., nn/_HOST for
na
doop-slave node's configurations.
>
>
>
> Please change this configuration in all nodes to 'dn/_HOST@platalyticsrealm'
> and restart all NNs and DNs, and check again.
>
>
>
> If this does not help, then please share the hdfs-site.xml of hadoop-slave
> node too.
leem [mailto:ane...@platalytics.com
<mailto:ane...@platalytics.com>]
*Sent:* 30 June 2016 13:24
*To:* Vinayakumar B mailto:vinayakumar...@huawei.com>>
*Cc:* user@hadoop.apache.org <mailto:user@hadoop.apache.org>
*Subject:* Re: datanode is unable to connect to namenode
