Hi, George.
Thank you for responding. I appreciate your taking the time.
I tried your config file, after commenting out the references to the
DDSAppender (so that it configures just one AsyncAppender, to which the
ConsoleAppender is attached). Unfortunately, it did not work: It, too,
produced the same error message ("No appender named [CONSOLE] could be
found"), and nothing was logged to the console.
The following was the debug output:
log4cxx: The "configDebug" attribute is deprecated.
log4cxx: Use the "internalDebug" attribute instead.
log4cxx: Threshold ="".
log4cxx: Level value for root is [debug].
log4cxx: OptionConverter::toLevel: no class name specified,
level=[debug]
log4cxx: root level set to DEBUG
log4cxx: Class name: [org.apache.log4cxx.AsyncAppender]
log4cxx: Attaching appender named [CONSOLE] to appender named
[ASYNC_CONSOLE].
log4cxx: No appender named [CONSOLE] could be found.
log4cxx: Adding appender named [ASYNC_CONSOLE] to logger [root].
A couple of questions:
(1) Are you by any chance using the old, deprecated version of log4cxx
(0.9.7)? I only began experiencing this problem with the AsyncAppender
when I upgraded to the latest version (0.10.0).
(2) According to the following bug description, the AsyncAppender, when
under load, will cause logging threads to deadlock and hang:
[#LOGCXX-129] Asyncappender is full of race conditions (improper use
of condition variables) - ASF JIRA
http://issues.apache.org/jira/browse/LOGCXX-129
Hve you experienced this problem? (Of course, if you are using log4cxx
0.9.7, then you shouldn't have this problem either.)
Thanks again,
Moshe
> -----Original Message-----
> From: George Uecker [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, June 26, 2007 4:40 PM
> To: Log4CXX User
> Subject: Re: AsyncAppender not working
>
> Moshe,
>
> Here's a copy of my config file. It configures two different
> AsyncAppenders, one for the ConsoleAppender and one for our
> custom DDSAppender. (The one shown for the FileAppender is
> commented out in the root section.) Works fine.
>
> HTH,
>
> George
>
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE log4cxx:configuration >
>
> <log4cxx:configuration
> xmlns:log4cxx="http://jakarta.apache.org/log4cxx/";
> configDebug="true">
>
> <appender name="ASYNC_CONSOLE"
> class="org.apache.log4cxx.AsyncAppender">
> <appender-ref ref="CONSOLE"/>
> </appender>
>
> <appender name="ASYNC_DDS"
> class="org.apache.log4cxx.AsyncAppender">
> <appender-ref ref="DDS"/>
> </appender>
>
> <!--appender name="ASYNC_FILE"
> class="org.apache.log4cxx.AsyncAppender">
> <appender-ref ref="FILE"/>
> </appender-->
>
> <appender name="CONSOLE"
> class="org.apache.log4cxx.ConsoleAppender">
> <layout class="org.apache.log4cxx.PatternLayout">
> <param name="ConversionPattern"
> value="%d %-5p [%x] %C{2} (%F:%L)
> - %m%n"/>
> </layout>
> </appender>
>
> <appender name="DDS" class="org.apache.log4cxx.DDSAppender">
> <param name="domain" value="21"/>
> <!--DDSAppender has no Layout-->
> <!--layout class="org.apache.log4cxx.PatternLayout">
> <param name="ConversionPattern"
> value="%d %-5p [%t] %C{2} (%F:%L)
> - %m%n"/>
> </layout-->
> </appender>
>
> <appender name="FILE" class="org.apache.log4cxx.FileAppender">
> <param name="File" value="tempLogFile"/>
> <layout class="org.apache.log4cxx.PatternLayout">
> <param name="ConversionPattern"
> value="%d %-5p [%t] %C{2} (%F:%L)
> - %m%n"/>
> </layout>
> </appender>
>
> <root>
> <priority value="debug"/>
> <appender-ref ref="ASYNC_CONSOLE"/>
> <appender-ref ref="ASYNC_DDS"/>
> <!--appender-ref ref="FILE"/-->
> </root>
> </log4cxx:configuration>
>
>
>
> Moshe Matitya wrote:
> > Unless I'm missing something, it appears to be impossible
> to configure
> > log4cxx to use AsyncAppender. Is there anybody out there who has
> > actually used it? If so, can you show me how your config
> file looks?
> >
> > Thanks,
> >
> > Moshe
> >
> >
> >
> >>-----Original Message-----
> >>From: Moshe Matitya [mailto:[EMAIL PROTECTED]
> >>Sent: Thursday, June 21, 2007 8:40 PM
> >>To: [email protected]
> >>Subject: AsyncAppender not working
> >>
> >>I have been unable to get the AsyncAppender to work. For every
> >>appender that is added to the AsyncAppender, the following error
> >>message appears:
> >>
> >> No appender named [<name>] could be found.
> >>
> >>And not surprisingly, no logging happens.
> >>
> >>I whittled this down to a simple example using an
> AsyncAppender with
> >>two attached appenders. Here is the config file:
> >>
> >> <?xml version="1.0" encoding="UTF-8" ?>
> >> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
> >>
> >> <log4j:configuration
> >>xmlns:log4j='http://jakarta.apache.org/log4j/'
> >> debug="true">
> >>
> >> <appender name="CONSOLE"
> >> class="org.apache.log4j.ConsoleAppender">
> >> <layout class="org.apache.log4j.PatternLayout">
> >> <param name="ConversionPattern"
> >> value="%d [%t] %-5p %c - %m%n" />
> >> </layout>
> >> </appender>
> >>
> >> <appender name="FILE"
> >> class="org.apache.log4j.FileAppender">
> >> <param name="File" value="Sample.log" />
> >> <param name="Append" value="false" />
> >> <layout class="org.apache.log4j.PatternLayout">
> >> <param name="ConversionPattern"
> >> value="%d [%t] %-5p %c - %m%n" />
> >> </layout>
> >> </appender>
> >>
> >> <appender name="ASYNC"
> >> class="org.apache.log4j.AsyncAppender">
> >> <param name="LocationInfo" value="true" />
> >> <appender-ref ref="CONSOLE" />
> >> <appender-ref ref="FILE" />
> >> </appender>
> >>
> >> <root>
> >> <level value="debug" />
> >> <appender-ref ref="ASYNC" />
> >> </root>
> >>
> >> </log4j:configuration>
> >>
> >>And here is the log4cxx debug output:
> >>
> >> log4cxx: Threshold ="".
> >> log4cxx: Level value for root is [debug].
> >> log4cxx: OptionConverter::toLevel: no class name specified,
> >>level=[debug]
> >> log4cxx: root level set to DEBUG
> >> log4cxx: Class name: [org.apache.log4j.AsyncAppender]
> >> log4cxx: Setting option name=[LocationInfo], value=[true]
> >> log4cxx: Attaching appender named [CONSOLE] to appender named
> >>[ASYNC].
> >> log4cxx: No appender named [CONSOLE] could be found.
> >> log4cxx: Attaching appender named [FILE] to appender named
> >>[ASYNC].
> >> log4cxx: No appender named [FILE] could be found.
> >> log4cxx: Adding appender named [ASYNC] to logger [root].
> >>
> >>When I change the root logger's appender from "ASYNC" to
> "CONSOLE" or
> >>"FILE"
> >>(i.e., bypassing the AsyncAppender), then everything works fine.
> >>
> >>Am I doing something wrong here?
> >>
> >>I am using log4cxx 0.10.0,
> >>taken from <http://littletux.homelinux.org/log4cxx> on June 21.
> >>I am running Windows XP SP2, with Visual C++ 6.0 SP6.
> >>
> >>Thanks,
> >>
> >>Moshe
> >
> >
> >
>
>
