|
Home > Archive > WebSphere HTTP Server > May 2004 > intermittent slow requests
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
intermittent slow requests
|
|
| kishan bisht 2004-05-07, 2:33 am |
| Hi,
I have a got a strange problem that is looking hard to nail.
My web application is running in WebSphere 4 and http server 1.3.19.X.
Suddenly the response times in this environment became high. And it is
happening intermittently, like the same hit is taking sometimes more
than 30 secs to complete and sometime sub seconds (maybe after a gap
or some inactive period).
After puuting debug code in the application we found out that the
struts application controller is taking sub secs to service the
request. Finally the web server access logs told that the request
itself is taking a long time to reach web server(no significant delay
between the time the request is logged on thw webserver access log and
the time it reaches the struts controller).
We are using "https" and web error logs do not say much.
So the delay (intermittently 10-100 secs) is either on the web server
servicing the request or somewhere on the network.
This is an intranet application so people are accessing within the
company's LAN.
Has anyone have any ideas how to find the bottleneck area in the path.
cheers
Kishan
| |
| kishan bisht 2004-05-18, 8:33 pm |
| After switching on the Websphere plugin trace, we found out that the
delay is happenning between the plugin and our struts servlet.
There seems to be odd intermittent delay as shown here in the plugin
log
[Tue May 18 17:30:54 2004] - TRACE: lib_htresponse: htresponseRead:
Reading the response:
[Tue May 18 17:31:49 2004] - TRACE: HTTP/1.1 200 OK
Still figuring this one out.
Let me know if somebody else has encountered this problem.
cheers
Kishan
kishan_bisht@hotmail.com (kishan bisht) wrote in message news:<8142e810.0405062202.790234bf@posting.google.com>...
> Hi,
>
> I have a got a strange problem that is looking hard to nail.
>
> My web application is running in WebSphere 4 and http server 1.3.19.X.
>
> Suddenly the response times in this environment became high. And it is
> happening intermittently, like the same hit is taking sometimes more
> than 30 secs to complete and sometime sub seconds (maybe after a gap
> or some inactive period).
>
> After puuting debug code in the application we found out that the
> struts application controller is taking sub secs to service the
> request. Finally the web server access logs told that the request
> itself is taking a long time to reach web server(no significant delay
> between the time the request is logged on thw webserver access log and
> the time it reaches the struts controller).
>
> We are using "https" and web error logs do not say much.
>
> So the delay (intermittently 10-100 secs) is either on the web server
> servicing the request or somewhere on the network.
>
> This is an intranet application so people are accessing within the
> company's LAN.
>
> Has anyone have any ideas how to find the bottleneck area in the path.
>
> cheers
>
> Kishan
| |
| kishan bisht 2004-05-22, 8:33 pm |
| After switching on the Websphere plugin trace, we found out that the
delay is happenning between the plugin and our struts servlet.
There seems to be odd intermittent delay as shown here in the plugin
log
[Tue May 18 17:30:54 2004] - TRACE: lib_htresponse: htresponseRead:
Reading the response:
[Tue May 18 17:31:49 2004] - TRACE: HTTP/1.1 200 OK
Still figuring this one out.
Let me know if somebody else has encountered this problem.
cheers
Kishan
kishan_bisht@hotmail.com (kishan bisht) wrote in message news:<8142e810.0405062202.790234bf@posting.google.com>...
> Hi,
>
> I have a got a strange problem that is looking hard to nail.
>
> My web application is running in WebSphere 4 and http server 1.3.19.X.
>
> Suddenly the response times in this environment became high. And it is
> happening intermittently, like the same hit is taking sometimes more
> than 30 secs to complete and sometime sub seconds (maybe after a gap
> or some inactive period).
>
> After puuting debug code in the application we found out that the
> struts application controller is taking sub secs to service the
> request. Finally the web server access logs told that the request
> itself is taking a long time to reach web server(no significant delay
> between the time the request is logged on thw webserver access log and
> the time it reaches the struts controller).
>
> We are using "https" and web error logs do not say much.
>
> So the delay (intermittently 10-100 secs) is either on the web server
> servicing the request or somewhere on the network.
>
> This is an intranet application so people are accessing within the
> company's LAN.
>
> Has anyone have any ideas how to find the bottleneck area in the path.
>
> cheers
>
> Kishan
|
|
|
|
|