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From "James Strachan" <james.strac...@gmail.com>
Subject Re: Transacted session commit is slow
Date Wed, 05 Sep 2007 08:39:37 GMT
Ah my mistake - that only works on the client side - not on the broker side.

On 9/5/07, James Strachan <james.strachan@gmail.com> wrote:
> As described on AMQ_1156, why not use
>
> ?socket.tcpNoDelay=true
>
>
> On 9/5/07, Dziugas Baltrunas <dziugas@baltrunas.lt> wrote:
> > Hi,
> >
> > I hope tcpNoDelay flag will be updated in next release of ActiveMQ.
> > For those using 4.1.1 version there are two workarounds:
> >
> > 1. Modify the source code as described in AMQ-1156.
> > 2. In lib/activemq-core-4.1.1.jar edit
> > META-INF/services/org/apache/activemq/transport/tcp and change
> >
> > class=org.apache.activemq.transport.tcp.TcpTransportFactory
> >
> > to
> >
> > class=your.package.YourTcpTransportFactory
> >
> > Then create your.package.YourTcpTransportFactory class witch extends
> > org.apache.activemq.transport.tcp.TcpTransportFactory and overrides
> > single method as follows:
> >
> > public class YourTcpTransportFactory extends TcpTransportFactory {
> >
> >   public Transport compositeConfigure(Transport transport, WireFormat
> > format, Map options) {
> >     TcpTransport tcpTransport = (TcpTransport)
> > transport.narrow(TcpTransport.class);
> >     tcpTransport.setTcpNoDelay(new Boolean(true));
> >     return super.compositeConfigure(transport, format, options);
> >   }
> > }
> >
> > Don't forget to put your class in ActiveMQ classpath. One way is to
> > pack YourTcpTransportFactory into jar and put in ActiveMQ lib/ folder.
> >
> > Regards,
> > Dziugas Baltrunas
> >
> > On 9/4/07, Dziugas Baltrunas <dziugas@baltrunas.lt> wrote:
> > > Hi,
> > >
> > > what is the right way to turn off TCP_NODELAY on Apache ActiveMQ 4.1.1
> > > (server side)? Looks like none of the options (socket.tcpNoDelay,
> > > wireFormat.tcpNoDelayEnabled, tcpNoDelay) work as described in
> > > AMQ-1156.
> > >
> > > Regards,
> > > Dziugas Baltrunas
> > >
> > > On 9/4/07, James Strachan <james.strachan@gmail.com> wrote:
> > > > On 9/4/07, Dziugas Baltrunas <dziugas@baltrunas.lt> wrote:
> > > > > Hi again,
> > > > >
> > > > > looks like I was wrong - running daemon on Windows increases the
> > > > > performance dramatically and I can now consume 1000 messages with
> > > > > commit after each message in less then 500 ms. And this is client
> > > > > independent, i.e. both consumer from Linux and Windows can consume
> > > > > fast from ActiveMQ running on Windows but slow if ActiveMQ runs on
> > > > > Linux.
> > > > >
> > > > > So it appears that my problem is the same as described AMQ-1137.
> > > > >
> > > > > Any hints how to "tune" ActiveMQ running on Linux to speed up commit
operations?
> > > >
> > > > Usually thats the nagler / tcp-nodelay issue
> > > >
> > > > --
> > > > James
> > > > -------
> > > > http://macstrac.blogspot.com/
> > > >
> > >
> >
>
>
> --
> James
> -------
> http://macstrac.blogspot.com/
>


-- 
James
-------
http://macstrac.blogspot.com/

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