Hello All,
I've moved everything over from Big Brother now to Hobbit.
I'm having problems with a couple http servers which are
coming back "red". All the other http servers are fine.
If I go to the URL's on the systems, they are fine.
I'm monitoring multiple URL's on several systems.
In this case the other systems are fine, but two are having
problems.
Has anyone seen something similar? Could it be a timing
issue? ie.The URL's are slow responding because they
are in use to much?
Thanks.James
if it is truly slow, you either
- 'badhttp:3:4:5' or alike to append to the http= check line. man 'bb-hosts' for more info.
- adjust timeout value for bbnettest ?
On 11/7/06, James Wade <jkwade at futurefrontiers.com> wrote:
Hello All,
I've moved everything over from Big Brother now to Hobbit.
I'm having problems with a couple http servers which are
coming back "red". All the other http servers are fine.
If I go to the URL's on the systems, they are fine.
I'm monitoring multiple URL's on several systems.
In this case the other systems are fine, but two are having
problems.
Has anyone seen something similar? Could it be a timing
issue? ie…The URL's are slow responding because they
are in use to much?
Thanks…James
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James
Tue Nov 7 12:46:20 2006: Not Found
Date: Tue, 07 Nov
red http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found Date: Tue, 07 Nov
HTTP/1.1 404 Not Found Date: Tue, 07 Nov 2006 18:46:25 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Content-Length: 332 Connection: close Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com]
Sent: Tuesday, November 07, 2006 12:53 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James
Tue Nov 7 12:46:20 2006: Not Found
Date: Tue, 07 Nov
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found
Date: Tue, 07 Nov
HTTP/1.1 404 Not Found
Date: Tue, 07 Nov 2006 18:46:25 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Content-Length: 332
Connection: close
Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
If you copy the exact URL to your desktop and you can get '200 ok' or alike, then you maybe hitting the wrong server from Hobbit. Do you have HOSTS entry for 'myhost.myodmain.com' point to one IP on your test box, but don't have it on your Hobbit server, or vice versa? Or they use different DNS servers?
To be sure and for troubleshooting, you can always add '=10.1.3.4' after the port number.
http://myhost.mydomain.com:8068/SELoginAccess.jsp
On 11/7/06, Hubbard, Greg L <greg.hubbard at eds.com> wrote:
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
*From:* James Wade [mailto:jkwade at futurefrontiers.com] *Sent:* Tuesday, November 07, 2006 12:53 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James *Tue Nov 7 12:46:20 2006: Not Found *
Date: Tue, 07 Nov
[image: red] http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found
Date: Tue, 07 Nov
HTTP/1.1 404 Not Found
Date: Tue, 07 Nov 2006 18:46:25 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Content-Length: 332
Connection: close
Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
I switched over from Big Brother to Hobbit. The History shows the
URL's working just fine until I switched over to Hobbit. Does Hobbit
monitor URL's differently than Big Brother?
Here's the same URL from BB this morning:
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Server OK HTTP/1.1 200 OK Date: Mon, 06 Nov 2006 21:41:18 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Set-Cookie: JSESSIONID=0000EYsgo4Q0FwZBBl6Ro8ZaQZ9:11ascfppf_Path=/ Cache-Control: no-cache="set-cookie,set-cookie2" Expires: Thu, 01 Dec 1994 16:00:00 GMT Connection: close Content-Type: text/html_ charset=iso-8859-1 Content-Language: en-US
Seconds: 0.06
From: Hubbard, Greg L [mailto:greg.hubbard at EDS.COM] Sent: Tuesday, November 07, 2006 1:03 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com] Sent: Tuesday, November 07, 2006 12:53 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James
Tue Nov 7 12:46:20 2006: Not Found
Date: Tue, 07 Nov
red http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found Date: Tue, 07 Nov
HTTP/1.1 404 Not Found Date: Tue, 07 Nov 2006 18:46:25 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Content-Length: 332 Connection: close Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
I am not aware of any differences, and I am not enough of a Web-head to understand all this, but what my untrained eyes see are:
a) Hobbit is getting a 404 from the Web server, which means that the URL was not right, or for some reason the Web server didn't want to serve up the file.
b) The file being requested is a jsp -- not sure that this would throw a wrench in anything. I believe Henrik has probably been asked to support jsp retrievals by now.
Unless Henrik can provide some pointers, I would be tempted to "sniff" the connection between the Hobbit server and this Web server to see what is really being exchanged...
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com]
Sent: Tuesday, November 07, 2006 1:37 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] HTTP Red
I switched over from Big Brother to Hobbit. The History shows
the
URL's working just fine until I switched over to Hobbit. Does
Hobbit
monitor URL's differently than Big Brother?
Here's the same URL from BB this morning:
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Server OK
HTTP/1.1 200 OK
Date: Mon, 06 Nov 2006 21:41:18 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Set-Cookie:
JSESSIONID=0000EYsgo4Q0FwZBBl6Ro8ZaQZ9:11ascfppf_Path=/ Cache-Control: no-cache="set-cookie,set-cookie2" Expires: Thu, 01 Dec 1994 16:00:00 GMT Connection: close Content-Type: text/html_ charset=iso-8859-1 Content-Language: en-US Seconds: 0.06
From: Hubbard, Greg L [mailto:greg.hubbard at EDS.COM]
Sent: Tuesday, November 07, 2006 1:03 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] HTTP Red
Wonder why the Web server is giving you a 404? Is there some
sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com]
Sent: Tuesday, November 07, 2006 12:53 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James
Tue Nov 7 12:46:20 2006: Not Found
Date: Tue, 07 Nov
http://myhost.mydomain.com:8068/SELoginAccess.jsp -
Not Found Date: Tue, 07 Nov HTTP/1.1 404 Not Found Date: Tue, 07 Nov 2006 18:46:25 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Content-Length: 332 Connection: close Content-Type: text/html; charset=iso-8859-1 Seconds: 0.09
O.K., I took out the .jsp and they work now.
Weird the way the other .jsp's work. I wonder if it's
something strange on the install of the two servers.
Basically I took out all the SELoginAccess.jsp:
http://myhost.mydomain.com:8068 <http://myhost.mydomain.com:8068/>
As soon as I did everything went green.
Henrik, Any idea what I can look for on the .jsp side
that would cause it to fail?
Thanks for the help. Mentioning it might be the .jsp did the trick.
James
From: Hubbard, Greg L [mailto:greg.hubbard at eds.com] Sent: Tuesday, November 07, 2006 1:50 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
I am not aware of any differences, and I am not enough of a Web-head to understand all this, but what my untrained eyes see are:
a) Hobbit is getting a 404 from the Web server, which means that the URL was not right, or for some reason the Web server didn't want to serve up the file.
b) The file being requested is a jsp -- not sure that this would throw a wrench in anything. I believe Henrik has probably been asked to support jsp retrievals by now.
Unless Henrik can provide some pointers, I would be tempted to "sniff" the connection between the Hobbit server and this Web server to see what is really being exchanged...
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com] Sent: Tuesday, November 07, 2006 1:37 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
I switched over from Big Brother to Hobbit. The History shows the
URL's working just fine until I switched over to Hobbit. Does Hobbit
monitor URL's differently than Big Brother?
Here's the same URL from BB this morning:
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Server OK HTTP/1.1 200 OK Date: Mon, 06 Nov 2006 21:41:18 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Set-Cookie: JSESSIONID=0000EYsgo4Q0FwZBBl6Ro8ZaQZ9:11ascfppf_Path=/ Cache-Control: no-cache="set-cookie,set-cookie2" Expires: Thu, 01 Dec 1994 16:00:00 GMT Connection: close Content-Type: text/html_ charset=iso-8859-1 Content-Language: en-US
Seconds: 0.06
From: Hubbard, Greg L [mailto:greg.hubbard at EDS.COM] Sent: Tuesday, November 07, 2006 1:03 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
From: James Wade [mailto:jkwade at futurefrontiers.com] Sent: Tuesday, November 07, 2006 12:53 PM To: hobbit at hswn.dk Subject: RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James
Tue Nov 7 12:46:20 2006: Not Found
Date: Tue, 07 Nov
red http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found Date: Tue, 07 Nov
HTTP/1.1 404 Not Found Date: Tue, 07 Nov 2006 18:46:25 GMT Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2 Content-Length: 332 Connection: close Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
I have a lot cont= checks in my bb-hosts against .jsp. so, I don't think it is .jsp offending anybody. I guess you could check your web server log to check what the server mapped it too when the test failed with them JSP in the chekc.
One of mine: cont=http://mydomain.com/tester1.jsp;okeydokey
On 11/7/06, James Wade <jkwade at futurefrontiers.com> wrote:
O.K., I took out the .jsp and they work now.
Weird the way the other .jsp's work. I wonder if it's
something strange on the install of the two servers.
Basically I took out all the SELoginAccess.jsp:
http://myhost.mydomain.com:8068
As soon as I did everything went green.
Henrik, Any idea what I can look for on the .jsp side
that would cause it to fail?
Thanks for the help. Mentioning it might be the .jsp did the trick.
James
*From:* Hubbard, Greg L [mailto:greg.hubbard at eds.com] *Sent:* Tuesday, November 07, 2006 1:50 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I am not aware of any differences, and I am not enough of a Web-head to understand all this, but what my untrained eyes see are:
a) Hobbit is getting a 404 from the Web server, which means that the URL was not right, or for some reason the Web server didn't want to serve up the file.
b) The file being requested is a jsp -- not sure that this would throw a wrench in anything. I believe Henrik has probably been asked to support jsp retrievals by now.
Unless Henrik can provide some pointers, I would be tempted to "sniff" the connection between the Hobbit server and this Web server to see what is really being exchanged...
GLH
*From:* James Wade [mailto:jkwade at futurefrontiers.com] *Sent:* Tuesday, November 07, 2006 1:37 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I switched over from Big Brother to Hobbit. The History shows the
URL's working just fine until I switched over to Hobbit. Does Hobbit
monitor URL's differently than Big Brother?
Here's the same URL from BB this morning:
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Server OK
HTTP/1.1 200 OK
Date: Mon, 06 Nov 2006 21:41:18 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Set-Cookie: JSESSIONID=0000EYsgo4Q0FwZBBl6Ro8ZaQZ9:11ascfppf_Path=/
Cache-Control: no-cache="set-cookie,set-cookie2"
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Connection: close
Content-Type: text/html_ charset=iso-8859-1
Content-Language: en-US
Seconds: 0.06
*From:* Hubbard, Greg L [mailto:greg.hubbard at EDS.COM] *Sent:* Tuesday, November 07, 2006 1:03 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
*From:* James Wade [mailto:jkwade at futurefrontiers.com] *Sent:* Tuesday, November 07, 2006 12:53 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James *Tue Nov 7 12:46:20 2006: Not Found *
Date: Tue, 07 Nov
[image: red] http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found
Date: Tue, 07 Nov
HTTP/1.1 404 Not Found
Date: Tue, 07 Nov 2006 18:46:25 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Content-Length: 332
Connection: close
Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
a) check access_log or alike on the web server should reveal why b) .jsp is no different from .html, or .pl or .asp, as far as a client is concerned. The client (browser or hobbit) sends 'GET /blah.jsp HTTP/1.1\nHost: myhost.mydomain.com\n\n' over a TCP socket to the server and the server spits back some HTML response over the same socket.
On 11/7/06, Hubbard, Greg L <greg.hubbard at eds.com> wrote:
I am not aware of any differences, and I am not enough of a Web-head to understand all this, but what my untrained eyes see are:
a) Hobbit is getting a 404 from the Web server, which means that the URL was not right, or for some reason the Web server didn't want to serve up the file.
b) The file being requested is a jsp -- not sure that this would throw a wrench in anything. I believe Henrik has probably been asked to support jsp retrievals by now.
Unless Henrik can provide some pointers, I would be tempted to "sniff" the connection between the Hobbit server and this Web server to see what is really being exchanged...
GLH
*From:* James Wade [mailto:jkwade at futurefrontiers.com] *Sent:* Tuesday, November 07, 2006 1:37 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I switched over from Big Brother to Hobbit. The History shows the
URL's working just fine until I switched over to Hobbit. Does Hobbit
monitor URL's differently than Big Brother?
Here's the same URL from BB this morning:
http://myhost.mydomain.com:8068/SELoginAccess.jsp - Server OK
HTTP/1.1 200 OK
Date: Mon, 06 Nov 2006 21:41:18 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Set-Cookie: JSESSIONID=0000EYsgo4Q0FwZBBl6Ro8ZaQZ9:11ascfppf_Path=/
Cache-Control: no-cache="set-cookie,set-cookie2"
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Connection: close
Content-Type: text/html_ charset=iso-8859-1
Content-Language: en-US
Seconds: 0.06
*From:* Hubbard, Greg L [mailto:greg.hubbard at EDS.COM] *Sent:* Tuesday, November 07, 2006 1:03 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
Wonder why the Web server is giving you a 404? Is there some sort of redirection going on, or is the Web server disallowing access to certain IP addresses?
GLH
*From:* James Wade [mailto:jkwade at futurefrontiers.com] *Sent:* Tuesday, November 07, 2006 12:53 PM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] HTTP Red
I don't think it's a timeout problem.
I can go to the website just fine via a browser window.
A ping test shows fast transmission time.
I've put the Test output below.
It's only doing this on two servers, but on every URL
on the server.
James *Tue Nov 7 12:46:20 2006: Not Found *
Date: Tue, 07 Nov
[image: red] http://myhost.mydomain.com:8068/SELoginAccess.jsp - Not Found
Date: Tue, 07 Nov
HTTP/1.1 404 Not Found
Date: Tue, 07 Nov 2006 18:46:25 GMT
Server: IBM_HTTP_Server/2.0.47 Apache/2.0.47 (Unix) DAV/2
Content-Length: 332
Connection: close
Content-Type: text/html; charset=iso-8859-1
Seconds: 0.09
On Tue, Nov 07, 2006 at 01:50:07PM -0600, Hubbard, Greg L wrote:
a) Hobbit is getting a 404 from the Web server, which means that the URL was not right, or for some reason the Web server didn't want to serve up the file.
Right. One possible explanation - especially when dynamic webpages are involved - is that the JSP checks for the "User-Agent" header it gets from the browser, or in this case from Hobbit's network tester. E.g. this is often done to accomodate incompatibilities between Internet Explorer and the rest of the world in how they interpret HTML.
BB sends a HEAD request like this:
HEAD /SELoginAccess.jsp HTTP/1.0 User-Agent: BigBrother/1.9c Host: myhost.mydomain.com:8068
Hobbit sends a GET request like this:
GET /SELoginAccess.jsp HTTP/1.1 Connection: close Host: myhost.mydomain.com User-Agent: Hobbit bbtest-net/4.2.0 Accept: */* Pragma: no-cache
which should be much more like a "normal" browser request. I dont think the HTTP 1.0/1.1 difference matters, but you *can* ask Hobbit to use HTTP 1.0 by defining the URL with "http10" as in
1.2.3.4 myhost # http10://myhost/SELoginAccess.jsp
The only other difference is that BB includes the port number in the "Host:" header. I haven't noticed that before. I've just checked the HTTP 1.1 RFC, and it's true that the "Host" header must include the port number if it is not the default (80 for http, 443 for https). You may want to try the attached patch to see if it makes a difference.
It would also be interesting to see what the webserver logs as the reason for generating a 404 status.
b) The file being requested is a jsp -- not sure that this would throw a wrench in anything. I believe Henrik has probably been asked to support jsp retrievals by now.
This is handled entirely by the webserver. As long as it's an HTTP request, Hobbit doesn't care what kind of data is being requested.
Regards, Henrik
participants (4)
-
greg.hubbard@EDS.COM
-
henrik@hswn.dk
-
jjj863@gmail.com
-
jkwade@futurefrontiers.com