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Posted to users@tomcat.apache.org by Nishant Deshpande <ni...@gmail.com> on 2006/06/16 04:18:11 UTC
flushing system.out
i'm printing stuff out to system.out in tomcat, but it doesn't get
flushed till the end of the request.
(i've tried system.out.flush())
has anyone got solutions to this problem? i'm not sure if its a tomcat
problem or some OS / jvm thing...
thanks
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Re: flushing system.out
Posted by Nishant Deshpande <ni...@gmail.com>.
I'm using Tomcat 5.0.28 and SuSe Linux 9.3
On 6/15/06, Mir Kasim Ali <mi...@gmail.com> wrote:
> Can u tell me which OS ure using and what version of Tomcat
>
> On 6/16/06, Nishant Deshpande <ni...@gmail.com> wrote:
> >
> > i'm printing stuff out to system.out in tomcat, but it doesn't get
> > flushed till the end of the request.
> >
> > (i've tried system.out.flush())
> >
> > has anyone got solutions to this problem? i'm not sure if its a tomcat
> > problem or some OS / jvm thing...
> >
> > thanks
> >
> > ---------------------------------------------------------------------
> > To start a new topic, e-mail: users@tomcat.apache.org
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> >
> >
>
>
> --
> Mir Kasim Ali
>
>
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Re: flushing system.out
Posted by Mir Kasim Ali <mi...@gmail.com>.
Can u tell me which OS ure using and what version of Tomcat
On 6/16/06, Nishant Deshpande <ni...@gmail.com> wrote:
>
> i'm printing stuff out to system.out in tomcat, but it doesn't get
> flushed till the end of the request.
>
> (i've tried system.out.flush())
>
> has anyone got solutions to this problem? i'm not sure if its a tomcat
> problem or some OS / jvm thing...
>
> thanks
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
--
Mir Kasim Ali
Re: flushing system.out
Posted by Glenn Holliday <gh...@csc.com>.
I agree, and also suggest that usually, you don't want debugging turned on
in a highly concurrent environment. Or other high volume environments, or
for production in general. At least, not that kind of shotgun debugging.
But it can be helpful when you encounter a 1-minute question and answer
during development or testing.
--
Glenn Holliday
Computer Sciences Corporation
ghollida@csc.com 540-644-6636
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Filip Hanik - Dev Lists <de...@hanik.com>
06/16/2006 08:45 AM
Please respond to
"Tomcat Users List" <us...@tomcat.apache.org>
To
Tomcat Users List <us...@tomcat.apache.org>
cc
Subject
Re: flushing system.out
System.out.println is a synchronized call, and will become a performance
bottleneck on highly concurrent applications,
the ideal is to use a logging framework, and setup an async logger
Filip
Glenn Holliday wrote:
> I frequently see it used for debugging. It's an easy place to log to.
> That's also when you most want unbuffered output. Is that practice
> discommended for other reasons?
>
> Tim Funk <fu...@joedog.org>
> 06/16/2006 07:14 AM
> Please respond to
> "Tomcat Users List" <us...@tomcat.apache.org>
>
>
> To
> Tomcat Users List <us...@tomcat.apache.org>
> cc
>
> Subject
> Re: flushing system.out
>
>
>
>
>
>
> I doubt you want to print to system.out in a servlet (or jsp).
>
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Re: flushing system.out
Posted by Filip Hanik - Dev Lists <de...@hanik.com>.
System.out.println is a synchronized call, and will become a performance
bottleneck on highly concurrent applications,
the ideal is to use a logging framework, and setup an async logger
Filip
Glenn Holliday wrote:
> I frequently see it used for debugging. It's an easy place to log to.
> That's also when you most want unbuffered output. Is that practice
> discommended for other reasons?
>
> --
> Glenn Holliday
> Computer Sciences Corporation
> ghollida@csc.com 540-644-6636
>
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> This is a PRIVATE message. If you are not the intended recipient, please
> delete without copying and kindly advise us by e-mail of the mistake in
> delivery. NOTE: Regardless of content, this e-mail shall not operate to
> bind CSC to any order or other contract unless pursuant to explicit
> written agreement or government initiative expressly permitting the use of
> e-mail for such purpose.
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>
>
>
> Tim Funk <fu...@joedog.org>
> 06/16/2006 07:14 AM
> Please respond to
> "Tomcat Users List" <us...@tomcat.apache.org>
>
>
> To
> Tomcat Users List <us...@tomcat.apache.org>
> cc
>
> Subject
> Re: flushing system.out
>
>
>
>
>
>
> I doubt you want to print to system.out in a servlet (or jsp).
>
>
>
>
>
>
> ---------------------------------------------------------------------
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--
Filip Hanik
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Re: flushing system.out
Posted by Glenn Holliday <gh...@csc.com>.
I frequently see it used for debugging. It's an easy place to log to.
That's also when you most want unbuffered output. Is that practice
discommended for other reasons?
--
Glenn Holliday
Computer Sciences Corporation
ghollida@csc.com 540-644-6636
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
This is a PRIVATE message. If you are not the intended recipient, please
delete without copying and kindly advise us by e-mail of the mistake in
delivery. NOTE: Regardless of content, this e-mail shall not operate to
bind CSC to any order or other contract unless pursuant to explicit
written agreement or government initiative expressly permitting the use of
e-mail for such purpose.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Tim Funk <fu...@joedog.org>
06/16/2006 07:14 AM
Please respond to
"Tomcat Users List" <us...@tomcat.apache.org>
To
Tomcat Users List <us...@tomcat.apache.org>
cc
Subject
Re: flushing system.out
I doubt you want to print to system.out in a servlet (or jsp).
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Re: flushing system.out
Posted by Tim Funk <fu...@joedog.org>.
I doubt you want to print to system.out in a servlet (or jsp).
Odds are you want flushBuffer
http://tomcat.apache.org/tomcat-5.0-doc/servletapi/javax/servlet/ServletResponseWrapper.html#flushBuffer()
or flush
http://tomcat.apache.org/tomcat-5.0-doc/jspapi/javax/servlet/jsp/JspWriter.html#flush()
-Tim
Nishant Deshpande wrote:
> i'm printing stuff out to system.out in tomcat, but it doesn't get
> flushed till the end of the request.
>
> (i've tried system.out.flush())
>
> has anyone got solutions to this problem? i'm not sure if its a tomcat
> problem or some OS / jvm thing...
>
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