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From "Guilherme Costa" <gccost...@gmail.com>
Subject Re: SocketAppender
Date Thu, 15 Jan 2009 19:07:26 GMT
I saw that before, but we can't lose any message, so if you have a broken
pipe, the message is gone!
I can send my solution if any of you are interested!!


Thanks,
Gui

On Thu, Jan 15, 2009 at 4:53 PM, Maarten Bosteels
<mbosteels.dns@gmail.com>wrote:

> I have written an AsyncSocketAppender (but I don't have the code right
> here).
>
> It's really not hard to implement when you use the Java 5 Executor
> framework.
> But you have to decide what to do when the queue becomes too big.
>
> One option is to discard messages (ThreadPoolExecutor.DiscardOldestPolicy)
> another option is
> to use a fallbackAppender : as long as the connection is broken you send
> all
> events to a FileAppender.
>
> My goal is to create a small open-source library with an
> AsyncSocketAppender
> for both log4j and logback that uses a pluggable encoder (similar to a
> Layout but for writing an event to an OutputStream instead of generating a
> String)
>
> And providing  a set of different encoders, eg using
> (a) java serialization
> (b) xml
> (c) protobuf [1]
> (d) Apache Thrift [2]
>
> Of course with corresponding receivers and a nice GUI :-)
>
> Alternative:
> I haven't tried it myself but maybe you can wrap an SocketAppender in an
> AsyncAppender [3] to achieve what you want.
>
> [1] http://code.google.com/p/protobuf/
> [2] http://incubator.apache.org/thrift/
> [3]
>
> http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/AsyncAppender.html
>
> Regards,
> Maarten
>
>
> On Wed, Jan 14, 2009 at 1:36 PM, <dhallammail-log4j@yahoo.com> wrote:
>
> > I guess you will be looking for
> >
> http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/net/JMSAppender.html
> >
> >
> >
> > ________________________________
> > From: Guilherme Costa <gccostabr@gmail.com>
> > To: Log4J Users List <log4j-user@logging.apache.org>
> > Sent: Wednesday, 14 January, 2009 12:11:15
> > Subject: SocketAppender
> >
> > I saw the code for that appender (thanks Open Source) and I noticed that
> if
> > the socket is not connected when a new message comes, the log message is
> > lost.
> > There are any appender out there that implements queue? We currently have
> a
> > logging system, home made. Very simple, it only sends a string message,
> the
> > application ID and the client IP address, but it has this queue to
> prevent
> > losing any message. My boss, that is fighting against the log4j idea told
> > me
> > that if we don't have a queue, we will keep using the same old logging
> > system (really old, maybe 6 years old!!).
> >
> > If there are no Appender that implements a queue, I will have to write
> one
> > for out application.
> >
> >
> > Thanks,
> > Gui
> >
> >
> >
> >
> >
>

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