CPU Ruuning at 100%

We have an instance of SQLRS on a virtual server under W2003.
Recently we had cause to reset the sever due to a dramatic slowdown in
response times. Upon checking we found the CPU usage was constantly around 95
to 100%.
Stopping the RS and SQL services made no difference and it was only resolved
by restarting the server itself.
This coincided with a user accessing an RS report with an Excel output,
which failed to respond 'fast enough' so he closed the window prior to the
dialogue box appearing (open-save-cancel).
We then set up a second server, and emulated exactly the users actions and
found the same problems with the CPU running out of control, requiring a
reset.
What might be the cause of this problem? I understand the user closing the
window initially caused the problem, but I am at a loss as to why stopping
the RS and SQL Services failed to resolve the problem. What other process
could RS have initiated that went out of control?
ANY pointers would be of use as this functionality is essential to some of
our processes, but we will need to restrict it's until this gets resolved.
Note: We have not, as yet, installed SP2 on either of the RS Servers.
Thanks in advance,We've ran into the same issues with high CPU usage. Support was never able
to point out the exact cause of the CPU spikes.
We have since installed all SPs, and the latest HotFix. So far, we haven't
seen the issue popup again. Maybe the SP2 helped with that, but we dont
know. It'll be good to know what causes it.
"Logicalman" <tony9scott45us@.com7cast.net34> wrote in message
news:5DE74C28-B866-4F79-9E74-0539C6514E78@.microsoft.com...
> We have an instance of SQLRS on a virtual server under W2003.
> Recently we had cause to reset the sever due to a dramatic slowdown in
> response times. Upon checking we found the CPU usage was constantly around
> 95
> to 100%.
> Stopping the RS and SQL services made no difference and it was only
> resolved
> by restarting the server itself.
> This coincided with a user accessing an RS report with an Excel output,
> which failed to respond 'fast enough' so he closed the window prior to the
> dialogue box appearing (open-save-cancel).
> We then set up a second server, and emulated exactly the users actions and
> found the same problems with the CPU running out of control, requiring a
> reset.
> What might be the cause of this problem? I understand the user closing the
> window initially caused the problem, but I am at a loss as to why stopping
> the RS and SQL Services failed to resolve the problem. What other process
> could RS have initiated that went out of control?
> ANY pointers would be of use as this functionality is essential to some of
> our processes, but we will need to restrict it's until this gets resolved.
> Note: We have not, as yet, installed SP2 on either of the RS Servers.
> Thanks in advance,
>
>|||TechnoSpyke,
Thanks for the info. I intend setting up a test scenario and have the Server
guys run every trace they can to pinpoint what
process/subProcess/Application/Service is kicked off as a result of the said
actions.
I will post what results, if we get anything, even semi-conclusive, back to
this thread.
If anyone else has anything to chip in for me to check whilst testing this,
please feel free..
Thanks again
"TechnoSpyke" wrote:
> We've ran into the same issues with high CPU usage. Support was never able
> to point out the exact cause of the CPU spikes.
> We have since installed all SPs, and the latest HotFix. So far, we haven't
> seen the issue popup again. Maybe the SP2 helped with that, but we dont
> know. It'll be good to know what causes it.
>
> "Logicalman" <tony9scott45us@.com7cast.net34> wrote in message
> news:5DE74C28-B866-4F79-9E74-0539C6514E78@.microsoft.com...
> > We have an instance of SQLRS on a virtual server under W2003.
> > Recently we had cause to reset the sever due to a dramatic slowdown in
> > response times. Upon checking we found the CPU usage was constantly around
> > 95
> > to 100%.
> > Stopping the RS and SQL services made no difference and it was only
> > resolved
> > by restarting the server itself.
> > This coincided with a user accessing an RS report with an Excel output,
> > which failed to respond 'fast enough' so he closed the window prior to the
> > dialogue box appearing (open-save-cancel).
> > We then set up a second server, and emulated exactly the users actions and
> > found the same problems with the CPU running out of control, requiring a
> > reset.
> > What might be the cause of this problem? I understand the user closing the
> > window initially caused the problem, but I am at a loss as to why stopping
> > the RS and SQL Services failed to resolve the problem. What other process
> > could RS have initiated that went out of control?
> > ANY pointers would be of use as this functionality is essential to some of
> > our processes, but we will need to restrict it's until this gets resolved.
> > Note: We have not, as yet, installed SP2 on either of the RS Servers.
> >
> > Thanks in advance,
> >
> >
> >
>
>