THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Honestly, the first question is "why are you rotating catalina.out"? Tomcat logs very little to catalina.out so the usual culprit is web applications that stupidly send output to System.out or System.err. If that's the case, what you ought to do is set swallowOutput="true" on the application's <Context> configuration. That will send the output to a file configured (default) by conf/logging.properties. Once you've done that, get the application fixed to use a real logger, or at least use ServletContext.log().
If you've decided that you still absolutely positively need to rotate catalina.out, there is something that you have to understand: catalina.out is created by your shell's output redirection, just like when you type "ls -l > dir_listing.txt". So rotating the file needs to be done carefully.
...
Rotate catalina.out using logrotate (or similar)
...
To
...
use
...
a
...
tool
...
like
...
...
,
...
you'll
...
want
...
to
...
use
...
the
...
"copytruncate"
...
configuration
...
option.
...
This
...
will
...
copy
...
catalina.out
...
to
...
another
...
file
...
(like
...
catalina.out.
...
datestamp
...
)
...
and
...
then
...
truncates
...
catalina.out
...
to
...
zero-bytes.
...
There
...
is
...
a
...
major
...
downside
...
to
...
this
...
if
...
catalina.out
...
is
...
seeing
...
a
...
lot
...
of
...
action:
...
some
...
log
...
messages
...
written
...
to
...
the
...
log
...
file
...
during
...
the
...
copy/truncate
...
procedure
...
may
...
be
...
lost.
Rotate catalina.out using rotatelogs or chronolog (or similar)
To use a tool like Apache httpd's rotatelogs or chronolog, you'll have to modify Tomcat's catalina.sh (or catalina.bat) script to change the output redirection from a redirect to a pipe. The existing code in catalina.sh looks like this:
| No Format |
|---|
eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \
-Djava.security.manager \
-Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \
-Dcatalina.base="\"$CATALINA_BASE\"" \
-Dcatalina.home="\"$CATALINA_HOME\"" \
-Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \
org.apache.catalina.startup.Bootstrap "$@" start \
>> "$CATALINA_OUT" 2>&1 "&"
|
You'll need to change that to something which looks more like this:
| No Format |
|---|
eval "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \
-Djava.security.manager \
-Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \
-Dcatalina.base="\"$CATALINA_BASE\"" \
-Dcatalina.home="\"$CATALINA_HOME\"" \
-Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \
org.apache.catalina.startup.Bootstrap "$@" start \
| "$PATH_TO_CHRONOLOG" $CATALINA_BASE/logs/catalina.out.%Y-%m-%d
|
...