[jira] [Comment Edited] (LOG4J2-918) Combining Root and AsyncRoot in Xml configuration

["Remko Popma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241257#comment-14241257 ] 

Remko Popma edited comment on LOG4J2-918 at 12/10/14 3:44 PM:
--------------------------------------------------------------

By design, you can only have one root. You can choose either async or sync, but you cannot have both in your configuration. However, within a single root logger you can have multiple appender-refs:

{code}
<Loggers>
  <AsyncRoot level="debug" includeLocation="false">
    <AppenderRef ref="Socket"/>
    <AppenderRef ref="Console" />
  </AsyncRoot>	
</Loggers>
{code}

Would that work for you?
The alternative is to have a root logger and one or more named loggers, but as you noted, a named logger configuration only logs events sent by a logger in the specified name space.


was (Author: remkop@yahoo.com):
By design, you can only have one root. You can choose either async or sync, but you cannot have both in your configuration. However, within a single root logger you can have multiple appender-refs:

{code}
<Loggers>
  <AsyncRoot level="debug" includeLocation="false">
    <AppenderRef ref="Socket"/>
    <AppenderRef ref="Console" />
  </AsyncRoot>	
</Loggers>
{code}

Would that work for you?

> Combining Root and AsyncRoot in Xml configuration
> -------------------------------------------------
>
>                 Key: LOG4J2-918
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-918
>             Project: Log4j 2
>          Issue Type: Bug
>    Affects Versions: 2.1
>            Reporter: Kaj Bjurman
>            Priority: Minor
>
> Don't know if this is a documentation issue, a configuration bug, or just a user error, so I have left many fields empty in this report. 
> I'm trying to create an xml configuration where I have asynchronous logging to a socket, and synchronous logging to disk. 
> The pdf-documentation says:
> http://logging.apache.org/log4j/2.x/log4j-users-guide.pdf
> "Synchronous and asynchronous loggers can be combined in configuration. This gives you more
> flexibility at the cost of a slight loss in performance (compared to making all loggers asynchronous).
> Use the <asyncRoot> or <asyncLogger> configuration elements to specify the loggers that need to
> be asynchronous. The same configuration file can also contain <root> and <logger> elements for
> the synchronous loggers."
> .. so I created a configuration file that looks like this:
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration status="trace">
> 	<Appenders>
> 		<Console name="Console" target="SYSTEM_OUT">
> 			<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
> 		</Console>
> 		<Socket name="Socket" host="localhost" port="666" immediateFail="false" immediateFlush="true" reconnectionDelayMillis="5000">
> 			<SerializedLayout />
>  		</Socket>
> 	</Appenders>
> 	<Loggers>
> 		<Root level="debug" includeLocation="false">
> 			<AppenderRef ref="Console" />
> 		</Root>
> 		<AsyncRoot level="debug" includeLocation="false">
>       		<AppenderRef ref="Socket"/>
> 	    </AsyncRoot>	
> 	</Loggers>
> </Configuration>
> {code}
> That configuration only leads to logging to the socket appender, and nothing to the console. 
> Changing the order of the root elements to:
> {code}
> 	<Loggers>
> 		<AsyncRoot level="debug" includeLocation="false">
>       		<AppenderRef ref="Socket"/>
> 	    </AsyncRoot>	
> 		<Root level="debug" includeLocation="false">
> 			<AppenderRef ref="Console" />
> 		</Root>
> 	</Loggers>
> {code}
> Gives console logging, but no logging to the socket.
> Changing the config to:
> {code}
> 	<Loggers>
> 		<AsyncRoot level="debug" includeLocation="false">
>       		<AppenderRef ref="Socket"/>
> 	    </AsyncRoot>	
> 		<Logger name="com" level="debug" includeLocation="false">
> 			<AppenderRef ref="Console" />
> 		</Logger>
> 	</Loggers>
> {code}
> Gives both console and socket logging, for "com" and descendants, but code that is logging to another domain than com does not end up in the console. 
> I also tried to leave the name empty in the test above, but that doesn't work.
> What's the problem? The documentation, or my understanding of it, or the implementation? 
> I would really like to have both asynchronous and synchronous root in the same configuration.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: log4j-dev-unsubscribe@logging.apache.org
For additional commands, e-mail: log4j-dev-help@logging.apache.org