Not able to acess Namenode web URL

Question

I tried accessing the web url of namenode with the namenode IP. It throwed an error HTTP ERROR 404 Problem accessing /dfshealth.jsp. Reason: NOT_FOUND

I am able to access the Namenode web url with the hostname.

/etc/hosts file:

127.0.0.1       localhost

192.168.10.103  impc2390


192.168.10.102  impc2359

192.168.10.101  impc2391

192.168.10.111  impc2394

192.168.10.104  impc2361

I tried 192.168.10.104:50070
It throwed an error that page not found

I tried with impc2361:50070
It worked fine

Why am I not able to access the page with Ip of the computer?

can you share full path in url when you do `impc2361:50070` and when you do `192.168.10.104:50070`? — Ramesh Maharjan, May 25 '17 at 14:59
@RameshMaharjan I entered 192.168.10.104:50070 and impc2361:50070 — Jon Andrews, May 26 '17 at 09:25
Yes Paul I understood that. But when you enter those address and port and hit enter the url must append something else as well. I wanted to see the appended strings. for example when I do `http://dwnpcpu369:50070` in my url and hit enter the whole path becomes `http://dwnpcpu369:50070/dfshealth.html#tab-overview`. Your error is `Problem accessing /dfshealth.jsp` and `jsp` files had been removed in new hadoop. I hope you got me — Ramesh Maharjan, May 26 '17 at 10:07
@RameshMaharjan When I enter 192.168.10.104:50070 it shows http://192.168.10.104:50070/dfshealth.jsp and when i enter impc2361:50070 it shows http://impc2361:50070/dfshealth.html#tab-overview — Jon Andrews, Jun 12 '17 at 10:21
can't you get access to namenode when you do ` impc2361:50070/dfshealth.html#tab-overview`? — Ramesh Maharjan, Jun 12 '17 at 10:33
I get access to namenode when i enter impc2361:50070/dfshealth.html#tab-overview` — Jon Andrews, Jun 13 '17 at 07:44
your problem is already solved then. As I already mentioned in my previous comment that dfshealth.jsp page has been removed in new hadoop so you won't get namenode on that page. `dfshealth.jsp` was used for older hadoop1 — Ramesh Maharjan, Jun 13 '17 at 07:52
@RameshMaharjan , Okay I understood the problem but how come iam able to acess the same page with the hostname. Hostname indirectly uses the IP address to access the port number. Is that correct? — Jon Andrews, Jun 14 '17 at 01:26
Yes you are correct. May be that your browswer has cached that address. Try copy pasting `192.168.10.104:50070/dfshealth.html#tab-overview` in your browswer. I think you should be able to view the namenode in web UI — Ramesh Maharjan, Jun 14 '17 at 01:29
I had already answered that in my previous comments that dfshealth.jsp is removed in newer versions of hadoop. I think I didn't sound clear so you got confused. :). Shall I answer this question then ? so that you can accept it and it will help others as well. :) — Ramesh Maharjan, Jun 14 '17 at 05:14
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/146595/discussion-between-basil-paul-and-ramesh-maharjan). — Jon Andrews, Jun 14 '17 at 05:17

score 3 · Answer 1 · answered Jun 14 '17 at 06:05

The reason behind HTTP ERROR 404 Problem accessing /dfshealth.jsp. Reason: NOT_FOUND error is because Namenode web UI is trying to access dfshealth.jsp page which has been removed in the latest hadoop releases.

When you enter NamenodeIP and port 50070 and hit enter, dfshealth.jsp must have been appended. May be you had older version of hadoop and your broswer had cached the address.

The solution to this would be either you clear the browser cache or append /dfshealth.html#tab-overview as

192.168.10.104:50070/dfshealth.html#tab-overview

Hope to see your problem solved with this answer.

Not able to acess Namenode web URL

1 Answers1