I'm using the built in server monitor. I do not have fusionreactor.
However, that will be one of my top suggestions if I can not figure it
out. (The other suggestion would probably be to get the site owner to
spring for Charlie's time.)
Unfortunately, I have not had my eye on the monitor at the time it
happens... But I just configured the alerts section to start taking
snapshots and email myself based on jvm memory usage or an unresponsive
request.
On 08/08/2013 11:55 PM, Ajas Mohammed wrote:
My first question will be do you have 1. FusionReactor or are you
using CF built in monitoring. See what requests were running or are
running when this happens.
<Ajas Mohammed />
iUseDropbox(http://db.tt/63Lvone9)
http://ajashadi.blogspot.com
We cannot become what we need to be, remaining what we are.
No matter what, find a way. Because thats what winners do.
You can't improve what you don't measure.
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execution; it represents the wise choice of many alternatives.
On Thu, Aug 8, 2013 at 8:23 PM, Frank Moorman
<stretch...@franksdomain.net <mailto:stretch...@franksdomain.net>> wrote:
FYI...
This is what the user gets on their end:
Server Error
The server encountered an internal error and was unable to
complete your request.
Application server is busy. Either there are too many concurrent
requests or the server is still starting up.
Also, I have not received any CF template errors at the times the
503 errors occur, nor any java.outofmemory errors etc. The server
is running and available except for the one or two requests.
Looking in the apache access log, There is no pattern to the pages
that were requested, (but I know that I need to dig deeper and see
what pages were requested right before the errors occur.)
Thanks in advance for any help,
Frank
On 08/08/2013 07:41 PM, Frank Moorman wrote:
All,
I'm trying to figure out and determine a Jrun Out of Memory
error. I get the following in my logs:
[Thu Aug 08 14:40:14 2013] [notice] jrApache[2937: 31182] returning
error page for JRun too busy or out of memory
[Thu Aug 08 15:50:09 2013] [notice] jrApache[1787: 63699] returning
error page for JRun too busy or out of memory
It doesn't happen often, (maybe once or occasionally twice a
business day) but as everyone understands, users aren't happy
when it happens to them.
This is a linux box, 64bit Centos 6, CF9 Enterprise, 64bit jvm
version 1.7. (The jvm was installed separately from CF for
security and coldfusion uses it.)
I doubt it is actually an out of memory condition (though I could
be wrong) The server has 6GB of physical memory and another 6GB
of swap. It rarely needs to use swap. (i.e. I have not observed it.)
The jvm is given significant memory to use as well. It is using a
64bit jvm with the settings of 1GB min JVM heap, as well as a 3GB
max. When I look through the server monitor, it is normal to see
1 to 1.5GB allocated and between 100-750MB used. (I see a normal
sawtooth pattern with the memory usage, so it looks like what I
would expect from the garbage collection routing. It does spike
occasionally but I have never seen it close to the 3GB max. (I've
never even seen it hit 2GB used.)
The server is set for 40 template requests (I recently upped it
from 10 to see if that was the problem and it still occurred with
the same frequency.)
Flash remoting is set to 2, webservice 1, CFC 1. (These remote
settings are only set for the monitor, as the server does not
provide any webservices outside the running application) Jrun is
set to 50 requests, and 1000 queued. (Enough to cover the CF
requests.)
I looked at Charlie's blog... I have checked the logs, and other
than the apache error log (above) I do not see anything. I've
check the system /var/log/messages, I've checked all the CF logs
(I also archived everything yesterday, and the cf logs are
practically empty even after today's occurrence.) I did not find
any jvm abort logs that Charlie mentioned in his blog. (I checked
in the CF directory mentioned as well as the system logs and the
actual JVM directory) I also checked the Jrun log (in
/opt/jrun4/logs/cfusion-event.log ) and was surprised because the
only entries were months ago. (Because of the age of the log, I'm
curious if I am looking at the right place for it.)
Does anyone have any ideas on what might be happening? or
something else that I should check?
I have searched the web and found different ideas (even the rare
"add more memory")
Another mentions the requests being overloaded, but I honestly do
not believe that the 10 simultaneous template requests was low
for the traffic for this site. After quadrupling it, with the
problem still occurring, it is even less likely.
I've seen some mentioning client variable storage, but the server
is set to use cookies for that, not a database. While I do not
use client storage, I know there are items like the last time
visited etc, so I may just turn it off completely.
Another one I found interested mentions a bug with MySql drivers
with the "Maintain Connections" setting and suggested to uncheck
this box. I search for this and found the bug mentioned, one site
even speculated it was still a problem with CF9, but I could not
find any details. Does anyone know of this issue, I've seen it
mentioned, but a lack of any details other than its bad to have
that checked. (The page that mentioned it did say it ate memory.)
I'd love more ideas, I know these are not an easy or straight
forward error. I may try removing the client storage next, but
other ideas are welcome. (i.e. I'm not very convinced that the
other things I found on the web will be effective.)
Thanks,
Frank
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