Re: Console Output Not Going Anywhere

Sun, 09 Aug 2009 08:58:32 -0700

It is the "standard" internal tomcat logging mechanism contained in the distribution of tomcat 6, based on java.util.logging. I am not sure exactly what you're saying, but it does not seem to be consistent with the documentation here, which seems to indicate all this stuff is built-in: 

http://tomcat.apache.org/tomcat-6.0-doc/logging.html
In the above documentation, I am using (or I should say, "attempting to use";-) the logging mechanism as explained under the heading "java.util.logging".
And I only just started trying tomcat's built-in logging. I did have my on little logging subsystem using System.out and System.err (I know, I know, bad practice, but this app is originally several years old). And, that still doesn't explain where my console goes. If you can only log (or get console output) from servlets, how do you get debug information from the rest, i. e. not just the ContextListener, but also things like beans, etc? I'm almost positive this was not the way tomcat5.5 worked, but I have an installation of 5.5 hosting the exact same webapp, so I'll check it and respond again in a few minutes. 

Thanks a whole lot for taking a stab at this.

anw


Filip Hanik - Dev Lists wrote:

That makes sense, Tomcat 6 doesn't use commons logging by default

problem explained.
if you want tomcat to use commons logging, you could build the extras package 

Filip

On 08/08/2009 07:34 PM, Martin Gainty wrote:

getLogger() is a method from
org.apache.commons.logging.impl.Log4JLoggerhttp://commons.apache.org/logging/commons-logging-1.0.3/docs/api/org/apache/commons/logging/impl/Log4JLogger.html 

Martin Gainty
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Date: Sat, 8 Aug 2009 18:19:48 -0600
From: devli...@hanik.com
To: users@tomcat.apache.org
Subject: Re: Console Output Not Going Anywhere

what class is Logger.getLogger(....), doesn't look like a tomcat class,
so, no, it wont show up in the tomcat configured logs.
Also, System.out/err only show up in the logs if you have swallowOutput
set AND it happens during a request.
ServletContextListener don't happen during servlet requests

Filip

On 08/08/2009 05:53 PM, Allen Williams wrote:

Allen Williams wrote:

I've fixed the exceptions that were being thrown and still have this,
despite having this in my code:
=======================================================
public class AppInitializer implements ServletContextListener
    {
    public void contextInitialized(ServletContextEvent e)
        {
        log2.log(Level.FINEST, "\n************ In contextInitialized
**************\n");
        System.out.println("\n************ In contextInitialized
**************\n");
        System.out.flush();
        System.err.println("\n************ In contextInitialized
**************\n");
        System.err.flush();

<snip>

private static Logger log2= Logger.getLogger("3info-dev.org.apache");
=======================================================

I can't get anything to display in any of the log files.  Here is my
logging.properties:

=======================================================
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with 
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0 
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Logging levels: SEVERE, WARNING, INFO, CONFIG, FINE, FINER, FINEST
or ALL

handlers = 1catalina.org.apache.juli.FileHandler,
2localhost.org.apache.juli.FileHandler,
3info-dev.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler 

.handlers = 1catalina.org.apache.juli.FileHandler,
java.util.logging.ConsoleHandler
.level=WARNING

############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################

1catalina.org.apache.juli.FileHandler.level = WARNING
1catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs 
1catalina.org.apache.juli.FileHandler.prefix = catalina.

2localhost.org.apache.juli.FileHandler.level = WARNING
2localhost.org.apache.juli.FileHandler.directory = ${catalina.base}/logs 
2localhost.org.apache.juli.FileHandler.prefix = localhost.

3info-dev.org.apache.juli.FileHandler.level = ALL
3info-dev.org.apache.juli.FileHandler.directory = ${catalina.base}/logs 
3info-dev.org.apache.juli.FileHandler.prefix = info-dev.

java.util.logging.ConsoleHandler.level = ALL
java.util.logging.ConsoleHandler.formatter =
java.util.logging.SimpleFormatter

############################################################
# Facility specific properties.
# Provides extra control for each logger.
############################################################

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level =
INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers
= 2localhost.org.apache.juli.FileHandler
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].level 
= ALL
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].handlers 
= 3info-dev.org.apache.juli.FileHandler
#
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].handlers 
= java.util.logging.ConsoleHandler

utils.AppInitializer.level = ALL

# For example, set the com.xyz.foo logger to only log SEVERE
# messages:
#org.apache.catalina.startup.ContextConfig.level = FINE
#org.apache.catalina.startup.HostConfig.level = FINE
#org.apache.catalina.session.ManagerBase.level = FINE
#org.apache.catalina.core.AprLifecycleListener.level=FINE
===================================================

and here are the log files that are produced-
catalina.xxx.log

===================================================
Aug 8, 2009 7:06:40 PM org.apache.catalina.users.MemoryUserDatabase save 
WARNING: User database is not persistable - no write permissions on
directory

===================================================

info-dev.log:

=====================================================
Aug 8, 2009 7:06:41 PM org.apache.catalina.core.StandardContext
listenerStart
FINE: Sending application start events
Aug 8, 2009 7:06:41 PM org.apache.catalina.core.StandardContext
filterStart
FINE: Starting filters
=====================================================

localhost.log:

======================================================
<null>, i. e., nothing in log
======================================================

ANY ideas why my console AND my log file are being sent to a black
hole?  BTW, I have also set and unset swallowOutput="true" multiple
times in my<Context>  tag.


Sorry, I should have mentioned that.  Yes, I've tried it both ways,
multiple times.  BTW, is that something new in Tomcat6?  I've never
seen it before now.

Filip Hanik - Dev Lists wrote:

did you set

swallowOutput="true" in conf/context.xml?

Filip

On 08/07/2009 07:01 PM, Allen Williams wrote:

I'm trying to get Tomcat 6 up and working; didn't have this problem
on 5.

The code:

System.err.println

does not print to the log files.  With this logging.properties:
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].level 
= ALL
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].handlers 
= 3info-dev.org.apache.juli.FileHandler

I get some exceptions, etc. in the info-dev.log file.  With this:
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].level 
= ALL
org.apache.catalina.core.ContainerBase.[Catalina].[info-dev].[/infoisland].handlers 
= java.util.logging.ConsoleHandler

I get zero bytes.  In neither of the above cases to I get the
output from several System.err.println's or System.out.println's.
Can someone tell me how to find out where my console is going, or
how to redirect it?

TIA
anw
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