Concurrency (was Re: log4j 1.3 prioritized tasks)

[Mark Womack <mw...@apache.org>]

Elias, you are proposing that there be a new/different set of "concurrent" 
appenders?  One that do not suffer from the problem that has been 
identified?

-Mark

----- Original Message ----- 
From: "Elias Ross" <er...@m-qube.com>
To: "Log4J Developers List" <lo...@logging.apache.org>
Cc: "Curt Arnold" <ca...@apache.org>
Sent: Friday, December 23, 2005 4:37 PM
Subject: Re: log4j 1.3 prioritized tasks


> On Thu, 2005-12-22 at 00:46 -0600, Curt Arnold wrote:
>
>> I'd prefer to expedite the 2.0 branch and get log4j using a much
>> finer grained locking than maintaining two parallel sets of appenders
>> with different locking characteristics.
>
> I'd be happy to help expedite a 2.0 release, but it seems ever further
> away.  And I anticipate (in six months) you'll find yourself in a
> similarly unpleasant situation for 2.0 where people demand application
> binary compatibility.
>
> It's also likely people are going to want both styles of appenders.  You
> Joe Java coder might not understand (or want to learn about) read/write
> locking rules.
>
> A good analogy is how the new JDK 1.5 java.util.concurrent.* collection
> classes did not deprecate existing locked collections classes, nor were
> java.util.Vector or java.util.Hashtable considered for removal.
>
> The concurrent library I proposed is around 1000 lines of new
> code/comments to maintain, compared to about 44,000 lines total for the
> existing log4j code base.  Frankly, all I would like from the log4j is
> an endorsement and place in svn, I can maintain and deal with the
> implementation details.
>
>
>
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