Re: [appengine-java] Log4j in production GAE

[Rusty Wright]

What I just wrote is probably confusing; I'm using slf4j with logback for 
logging, not log4j.  You don't need a logback.xml configuration file if you're 
using slf4j with log4j (but you will need a log4j configuration file).

I prefer logback because with tomcat you can never be sure that any problems 
with the logging aren't being caused by tomcat's logging (but since gae isn't 
using tomcat that shouldn't be an issue here).  Also, logback is more actively 
supported (and it's written by the same guy who wrote log4j).


Rusty Wright wrote:

I also vote for slf4j. If you need a "for example", here's my logback.xml file, which lives in the WEB-INF/classes directory:

<?xml version="1.0" encoding="UTF-8"?>

<!-- <pattern>%date{yyyy-MM-dd HH:mm:ss.SSS z}, %5level: [%thread] %class.%method.%line: %message%n</pattern> -->

<configuration debug="true">

<appender class="ch.qos.logback.core.ConsoleAppender" name="RootConsoleAppender">

       <layout class="ch.qos.logback.classic.PatternLayout">

<pattern>%5level: [%thread] %class.%method.%line: %message%n</pattern>

       </layout>
   </appender>

   <logger name="org.springframework.beans">
       <level
           value="warn"
       />
   </logger>

   <logger name="org.springframework.transaction">
       <level
           value="debug"
       />
   </logger>

   <logger name="org.springframework.orm.jdo.JdoTransactionManager">
       <level
           value="debug"
       />
   </logger>

<!--

<logger name="com.google.appengine.repackaged.com.google.common.base.FinalizableReferenceQueue">

       <level
           value="warn"
       />
   </logger>
-->

   <root>
       <level
           value="info"
       />

       <appender-ref
           ref="RootConsoleAppender"
       />
   </root>
</configuration>


?? wrote:

I use slf4j!
use slf4j-log4j when development!

use slf4j-jdk log when GAE Server!(change slf4j-log4j to slf4j-jdk-log before GAE appcfg update war)

2010/2/2 Alex <alexanderko...@gmail.com <mailto:alexanderko...@gmail.com>>

    Hello,

    Has anyone tried to use Log4j in production GAE? Is it supported?

According to Java GAE docs, only java.util.logging is fully supported.

    See http://code.google.com/appengine/docs/java/runtime.html#Logging

    [...]
     Any logging framework (such as log4j) that logs to the output or

error streams will work. However, for more fine-grained control of the

    Admin Console's log level display, the logging framework must use a
    java.util.logging adapter.
    [...]

    On the other hand, I see that log4j.properties is included into every
    project created by GAE Eclipse plugin.

    I tried Log4j in a test application and Lo4j is working fine in
    development environment. But it doesn't (just does nothing) when I
    deploy my test application into live GAE server.

    Thanks in advance for any info,
    Alex

--

You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.

--
0x2B | ~0x2b  --  Hamlet

--
You received this message because you are subscribed to the Google Groups "Google 
App Engine for Java" group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine-java?hl=en.