Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
Received-SPF: pass (athena.apache.org: local policy)
Date: Fri, 15 Oct 2010 13:37:50 +0200 (CEST)
From: Ronald Klop <ronald-mailinglist@base.nl>
To: Tomcat Users List <users@tomcat.apache.org>
Message-ID: <13708918.158.1287142670284.JavaMail.tomcat@localhost>
In-Reply-To: <20101015110033.GD11111@c3po>
References: <20101015080212.GC11111@c3po>
 <32807776.111.1287138850583.JavaMail.tomcat@localhost>
 <20101015110033.GD11111@c3po>
Subject: Re: lock session in distributed environment
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_Part_157_20316813.1287142670275"
Importance: Normal

------=_Part_157_20316813.1287142670275
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Op vrijdag, 15 oktober 2010 13:00 schreef Roman Makurin <drolyk@gmail.com>:
> 
>  
> 
> On Fri, Oct 15, 2010 at 12:34:10PM +0200, Ronald Klop wrote:
> > Op vrijdag, 15 oktober 2010 10:02 schreef Roman Makurin <drolyk@gmail.com>:
> > >
> > >
> > >Hi All!
> > >
> > >I have an app which rely on session locking and its key
> > >point here. Everything work on single tomcat instance,
> > >but its completly broken in distributed env. So i want to
> > >know is there any way to get my app working without
> > >complete redesing? I need lock all incoming requests untill
> > >business logic will be done, this lock must be
> > >available on all nodes in cluster.
> > >
> > >any advise?
> > >
> > >Thanks
> > >
> > >-- 
> > >If you think of MS-DOS as mono, and Windows as stereo,
> > > then Linux is Dolby Digital and all the music is free...
> > >
> > >
> > >
> > >
> > >
> > >
> > 
> > 
> > This is something a database can do very well. There are also things like a distributed HashMap which you might use to do locking in your setup.  But that probably is what you see as complete redesign (and it is :-) ).
> > 
> > Ronald.
> 
> Looks like HashMap is like distributed HttpSession object,
> but does it support locking? Eg. I lock session at first
> node and all other nodes r aware of this lock. 
>  
> 
> 
> 
> 
> 
> 

If you are locking with synchronized or something like that than it doesn't work between different JVM's.

Ronald.

------=_Part_157_20316813.1287142670275--