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From "Shapira, Yoav" <Yoav.Shap...@mpi.com>
Subject FW: Rotating catalina.out.
Date Tue, 10 Jun 2003 18:01:38 GMT

Howdy,
I just posted this to the tomcat-user mailing list.  Over there, several
users now and in the past have asked for the catalina.out (tomcat's
default System.out / System.err destination) file to be rotated on a
regular basis.  One person suggested using Apache's rotatelogs
(http://httpd.apache.org/docs-2.0/programs/rotatelogs.html) program to
accomplish this.

Tomcat already uses an internal mechanism to rollover other log files.
Log4j obviously has its own mechanism.

Now that we have a brand new rollover implementation in the works for
log4j 1.3, I was wondering if it makes sense to make a jakarta-commons
subproject out of it.  See the message below for more details.

What do people think?

Yoav Shapira
Millennium ChemInformatics


>-----Original Message-----
>From: Shapira, Yoav
>Sent: Tuesday, June 10, 2003 1:57 PM
>To: Tomcat Users List
>Subject: RE: Rotating catalina.out.
>
>
>Howdy,
>I will throw out one other thing, partially for myself so that when I
>look through this thread in the archives I remember this:
>
>Over in log4j land, we've got a new, flexible, generic, powerful file
>rollover mechanism.  It has the normal features (rollover based on file
>size, on date [including hourly, every X minutes, etc.]) and some
cooler
>ones (compress when rolling over, rename when rolling over, etc.).
Both
>the rolling trigger and action are easily extensible.
>
>These rollover framework will be used in log4j 1.3, the next major
>version.  I wonder if it can be made slightly more generic and into a
>jarkarta-commons-sandbox project.  That will require discussion and
>consent from the log4j developers to start with.  But if it's a commons
>project, tomcat could use it instead of something from unix land.
>
>Yoav Shapira
>Millennium ChemInformatics
>
>
>>-----Original Message-----
>>From: PELOQUIN,JEFFREY (HP-Boise,ex1) [mailto:jeffrey.peloquin@hp.com]
>>Sent: Tuesday, June 10, 2003 1:47 PM
>>To: 'Tomcat Users List'
>>Subject: RE: Rotating catalina.out.
>>
>>Will do.  I have to do a new test server install over the next week
>anyway,
>>so I will work through the various permutations and post the results.
>>
>>Jeff
>>
>>-----Original Message-----
>>From: Shapira, Yoav [mailto:Yoav.Shapira@mpi.com]
>>Sent: Tuesday, June 10, 2003 11:40 AM
>>To: Tomcat Users List
>>Subject: RE: Rotating catalina.out.
>>
>>
>>
>>Howdy,
>>Can you submit your proposed modification to the script, and what it
>>would require (e.g. downloading rotatelogs and placing it somewhere)?
>I
>>think catalina.out rotation is a generically useful enough feature to
>>make its way into the tomcat distribution eventually...
>>
>>Yoav Shapira
>>Millennium ChemInformatics
>>
>>
>>>-----Original Message-----
>>>From: PELOQUIN,JEFFREY (HP-Boise,ex1)
[mailto:jeffrey.peloquin@hp.com]
>>>Sent: Tuesday, June 10, 2003 1:28 PM
>>>To: 'Tomcat Users List'
>>>Subject: RE: Rotating catalina.out.
>>>
>>>Something I have always wanted to try was to modify
>>>
>>>this line of the catalina.sh
>>>
>>>$JAVA_HOME/bin/java $CATALINA_OPTS -classpath $CP \
>>>     -Djava.security.manager \
>>>     -Djava.security.policy==$CATALINA_BASE/conf/catalina.policy \
>>>     -Dcatalina.base=$CATALINA_BASE \
>>>     -Dcatalina.home=$CATALINA_HOME \
>>>     org.apache.catalina.startup.Bootstrap "$@" start \
>>>     >> $CATALINA_BASE/logs/catalina.out
>>>
>>>to use the rotatelogs progran from apache, see for example
>>>http://httpd.apache.org/docs-2.0/logs.html#piped
>>>
>>>or simply catalina.sh do the rotation here using mv
>>>of course you have to remeber to update the script when you install a
>>new
>>>tomcat
>>>
>>>
>>>-----Original Message-----
>>>From: Tim Funk [mailto:funkman@joedog.org]
>>>Sent: Tuesday, June 10, 2003 11:00 AM
>>>To: Tomcat Users List
>>>Subject: Re: Rotating catalina.out.
>>>
>>>
>>>In windows - your screwed.
>>>
>>>In unix: (YMMV)
>>>cp -f catalina.out catalina.out-old
>>>cat /dev/null > catalina.out
>>>
>>>In a nutshell - wacky every developer upside the head which uses
>>>System.out,
>>>
>>>System.err. Then make them use a logging package such as log4j,
>>>commons-logging, ... And catalina.out becomes "unused"
>>>
>>>-Tim
>>>
>>>
>>>Eric J. Pinnell wrote:
>>>> Hi,
>>>>
>>>> Our catalina.out gets rather large.  We would like to keep the
data.
>>>Does
>>>> anybody have a good solution for rotating it w/o restarting the
>>>> application?  Or can that even be done?
>>>>
>>>> I was thinking of renaming the file and then touching catalina.out
>to
>>>> create a new file but I have some concerns that tomcat won't write
>to
>>the
>>>> file once it sees it move.
>>>>
>>>> Anybody have any thoughts?
>>>>
>>>> -e
>>>>
>>>
>>>
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>>
>>
>>
>>
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>
>
>
>This e-mail, including any attachments, is a confidential business
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intended
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