question Re: Blank Name Node status in HDP on windows 2012 R2 in Archives of Support Questions (Read Only)

Blank Name Node status in HDP on windows 2012 R2

ritjain — Wed, 21 Dec 2016 23:28:50 GMT

I just setup Hortonworks Data Platform2.3.4 on Windows 2012 R2 server, When I started "Hadoop Name Node Status", browser does not show anything. Kindly suggest..

Re: Blank Name Node status in HDP on windows 2012 R2

jsensharma — Wed, 21 Dec 2016 23:32:41 GMT

@Ritesh jain

Can you please share the screenshot of the blank page so that we can get to know the exact URL that you are hitting?

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Sun, 18 Aug 2019 11:11:53 GMT

snapshot is attached

Re: Blank Name Node status in HDP on windows 2012 R2

jsensharma — Wed, 21 Dec 2016 23:39:37 GMT

@Ritesh jain

Is it happening with all the browsers?

Is that host name accessible and port is opened?

Re: Blank Name Node status in HDP on windows 2012 R2

namaheshwari — Thu, 22 Dec 2016 03:23:41 GMT

Can you please share the below property value from hdfs-site.xml.

dfs.namenode.http-address

Also, is this a secure cluster or an unsecure cluster.

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Thu, 22 Dec 2016 16:05:03 GMT

Yes, I tried couple of browsers on that Azure VM. I checked ipconfig and got IPv4 as 10.0.0.6 and it was pinging. When I pinged ip address of Azure VM, it's timing out.

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Thu, 22 Dec 2016 16:10:15 GMT

<name>dfs.namenode.http-address</name> <value>ritjainvmws2012:50070</value>hdfs-site.xml

Re: Blank Name Node status in HDP on windows 2012 R2

Shelton — Thu, 22 Dec 2016 16:18:27 GMT

@Ritesh jain

What is the entry of your hosts file like? Can you share it !

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Thu, 22 Dec 2016 18:14:00 GMT

Sorry. could not follow you...

Re: Blank Name Node status in HDP on windows 2012 R2

ssivachandran — Thu, 22 Dec 2016 19:44:01 GMT

@Ritesh jain Actually Geoffrey is requesting for the contents of your hosts file located in C:\Windows\System32\drivers\etc.

If the IP where HDP is installed is 10.0.0.6 and its hostname is ritjainvmws2012 then please confirm if 10.0.0.6 is mapped to ritjainvmws2012 in the hosts file.

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Thu, 22 Dec 2016 21:27:59 GMT

here are the contents of hosts file -

# Copyright (c) 1993-2009 Microsoft Corp. # # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. # # This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. #127.0.0.1 localhost #::1 localhost

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Thu, 22 Dec 2016 21:28:19 GMT

Thanks....

Re: Blank Name Node status in HDP on windows 2012 R2

namaheshwari — Fri, 23 Dec 2016 03:45:33 GMT

In the attached hdfs-site.xml the value for both dfs.namenode.http-address and dfs.https.port have the same port 50070, which might have a conflict.

Please set 50071 as the port for dfs.https.port, restart Hadoop and then try using the browser, once the Namenode is out of safemode.

If this does not work, you might want to set the value for dfs.namenode.http-address to 0.0.0.0:50070, restart Hadoop, wait for Namenode out of Safemode and then try hitting http://localhost:50070 in the browser. Let me know if this helps. Thanks!

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Fri, 23 Dec 2016 21:08:03 GMT

Added below entry but still no luck..

10.0.0.6 ritjainvmws2012

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Fri, 06 Jan 2017 13:45:11 GMT

Thanks a ton Namit. Your second suggestion worked i.e. set the value for dfs.namenode.http-address to 0.0.0.0:50070. Appreciate reasoning behind that. Also what do u mean by "Once the Namenode is out of safemode"

Also I know I can not browser "user" folder thru UI bcoz of error "Permission denied: user=gopher, access=READ_EXECUTE, inode="/user":hadoop:hdfs:drwx--x--x". Is there any way to access that using UI instead of using runas command.

Re: Blank Name Node status in HDP on windows 2012 R2

ritjain — Fri, 06 Jan 2017 16:22:08 GMT

Namenode status is up now but MR job is still not working. Please see if there are any inputs at below post -

https://community.hortonworks.com/questions/72672/unable-to-connect-to-the-remote-server-while-conne.html#answer-form