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Posted to users@tomcat.apache.org by da...@wipro.com on 2011/06/27 11:54:28 UTC
too many open files issue in tomcat
Hi,
I am facing the issue of "too many open files" in the tomcat and not
able to process any request further. Did somebody faced the same problem
and what is the problem and solution for the same.
This issue is creating lot of problem on the production systems and if
somebody has already solved this issue, then provide us the solution.
Regards
Dayakar
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Re: too many open files issue in tomcat
Posted by Jason Viloria <jn...@gmail.com>.
On Mon, Jun 27, 2011 at 12:30 PM, Mark Thomas <ma...@apache.org> wrote:
> On 27/06/2011 11:21, dasari.rao@wipro.com wrote:
> > Hi,
> >
> > Tomcat version is 6.0.29
> > OS is RHEL5.5-1
> > -Xms256m -Xmx768m"
> > No explicit file descriptor configuration its default of OS
> > Not observed the out of memory error but some time found the socket
> > problem
> > Only tomcat is running on the server but communicates with the DB on the
> > other server.
>
> Search the archives / look in the FAQ (I think this in in there).
>
>
Just talking from what I have experienced, most of the time I have
encountered this problem is because there is a bottleneck somehwere in the
code. Tomcat process needing to communicate via soap and remote system takes
too long to timeout hence tomcat processes are lying around wasting fd.
Another common issue is DB bottlenecks once again causing tomcat processes
to lay around for too long and as a result don't get freed up fast enough to
further serve clients. Also you need to see how many connections are coming
in to your system using any network monitoring tool you can put on, it could
really be just that you are reaching fd limit and hence must edit your
ulimits.Hope this helps.
/Jason
Re: too many open files issue in tomcat
Posted by Mark Thomas <ma...@apache.org>.
On 27/06/2011 11:21, dasari.rao@wipro.com wrote:
> Hi,
>
> Tomcat version is 6.0.29
> OS is RHEL5.5-1
> -Xms256m -Xmx768m"
> No explicit file descriptor configuration its default of OS
> Not observed the out of memory error but some time found the socket
> problem
> Only tomcat is running on the server but communicates with the DB on the
> other server.
Search the archives / look in the FAQ (I think this in in there).
Mark
>
> Regards
> Dayakar
> -----Original Message-----
> From: Guy Katz [mailto:gkatz@allot.com]
> Sent: Monday, June 27, 2011 3:38 PM
> To: users@tomcat.apache.org
> Subject: RE: too many open files issue in tomcat
>
> I think you will get better help by providing the following:
> -Which tomcat version are you using?
> -Which OS are you deploying on?
> -What is your memory setting for tomcat (if explicitly set)?
> -What's your file descriptor configuration in the OS (if explicitly
> set)?
> -does the problem arrive alongside an out of memory error?
> -are there any 'IO heavy' processes that run on your deployment machine
> along with tomcat (DB, etc)?
>
> -----Original Message-----
> From: dasari.rao@wipro.com [mailto:dasari.rao@wipro.com]
> Sent: Monday, June 27, 2011 12:54 PM
> To: users@tomcat.apache.org
> Subject: too many open files issue in tomcat
>
> Hi,
>
>
>
> I am facing the issue of "too many open files" in the tomcat and not
> able to process any request further. Did somebody faced the same problem
> and what is the problem and solution for the same.
>
>
>
> This issue is creating lot of problem on the production systems and if
> somebody has already solved this issue, then provide us the solution.
>
>
>
> Regards
>
> Dayakar
>
>
> Please do not print this email unless it is absolutely necessary.
>
> The information contained in this electronic message and any attachments
> to this message are intended for the exclusive use of the addressee(s)
> and may contain proprietary, confidential or privileged information. If
> you are not the intended recipient, you should not disseminate,
> distribute or copy this e-mail. Please notify the sender immediately and
> destroy all copies of this message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient
> should check this email and any attachments for the presence of viruses.
> The company accepts no liability for any damage caused by any virus
> transmitted by this email.
>
> www.wipro.com
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RE: too many open files issue in tomcat
Posted by da...@wipro.com.
Hi,
Tomcat version is 6.0.29
OS is RHEL5.5-1
-Xms256m -Xmx768m"
No explicit file descriptor configuration its default of OS
Not observed the out of memory error but some time found the socket
problem
Only tomcat is running on the server but communicates with the DB on the
other server.
Regards
Dayakar
-----Original Message-----
From: Guy Katz [mailto:gkatz@allot.com]
Sent: Monday, June 27, 2011 3:38 PM
To: users@tomcat.apache.org
Subject: RE: too many open files issue in tomcat
I think you will get better help by providing the following:
-Which tomcat version are you using?
-Which OS are you deploying on?
-What is your memory setting for tomcat (if explicitly set)?
-What's your file descriptor configuration in the OS (if explicitly
set)?
-does the problem arrive alongside an out of memory error?
-are there any 'IO heavy' processes that run on your deployment machine
along with tomcat (DB, etc)?
-----Original Message-----
From: dasari.rao@wipro.com [mailto:dasari.rao@wipro.com]
Sent: Monday, June 27, 2011 12:54 PM
To: users@tomcat.apache.org
Subject: too many open files issue in tomcat
Hi,
I am facing the issue of "too many open files" in the tomcat and not
able to process any request further. Did somebody faced the same problem
and what is the problem and solution for the same.
This issue is creating lot of problem on the production systems and if
somebody has already solved this issue, then provide us the solution.
Regards
Dayakar
Please do not print this email unless it is absolutely necessary.
The information contained in this electronic message and any attachments
to this message are intended for the exclusive use of the addressee(s)
and may contain proprietary, confidential or privileged information. If
you are not the intended recipient, you should not disseminate,
distribute or copy this e-mail. Please notify the sender immediately and
destroy all copies of this message and any attachments.
WARNING: Computer viruses can be transmitted via email. The recipient
should check this email and any attachments for the presence of viruses.
The company accepts no liability for any damage caused by any virus
transmitted by this email.
www.wipro.com
########################################################################
######################
This message is intended only for the designated recipient(s).It may
contain confidential or proprietary information.
If you are not the designated recipient, you may not review, copy or
distribute this message.
If you have mistakenly received this message, please notify the sender
by a reply e-mail and delete this message.
Thank you.
########################################################################
######################
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Please do not print this email unless it is absolutely necessary.
The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments.
WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.
www.wipro.com
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RE: too many open files issue in tomcat
Posted by Guy Katz <gk...@allot.com>.
I think you will get better help by providing the following:
-Which tomcat version are you using?
-Which OS are you deploying on?
-What is your memory setting for tomcat (if explicitly set)?
-What's your file descriptor configuration in the OS (if explicitly
set)?
-does the problem arrive alongside an out of memory error?
-are there any 'IO heavy' processes that run on your deployment machine
along with tomcat (DB, etc)?
-----Original Message-----
From: dasari.rao@wipro.com [mailto:dasari.rao@wipro.com]
Sent: Monday, June 27, 2011 12:54 PM
To: users@tomcat.apache.org
Subject: too many open files issue in tomcat
Hi,
I am facing the issue of "too many open files" in the tomcat and not
able to process any request further. Did somebody faced the same problem
and what is the problem and solution for the same.
This issue is creating lot of problem on the production systems and if
somebody has already solved this issue, then provide us the solution.
Regards
Dayakar
Please do not print this email unless it is absolutely necessary.
The information contained in this electronic message and any attachments
to this message are intended for the exclusive use of the addressee(s)
and may contain proprietary, confidential or privileged information. If
you are not the intended recipient, you should not disseminate,
distribute or copy this e-mail. Please notify the sender immediately and
destroy all copies of this message and any attachments.
WARNING: Computer viruses can be transmitted via email. The recipient
should check this email and any attachments for the presence of viruses.
The company accepts no liability for any damage caused by any virus
transmitted by this email.
www.wipro.com
##############################################################################################
This message is intended only for the designated recipient(s).It may contain confidential or proprietary information.
If you are not the designated recipient, you may not review, copy or distribute this message.
If you have mistakenly received this message, please notify the sender by a reply e-mail and delete this message.
Thank you.
##############################################################################################
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