Jetty and EJB. Both use javagroups, as far as I know. (Well, the app I'm benchamarking uses both http and ejb sessions. I dunno if the slowdown is seen in both levels or only one, as I only measure the client percieved time) If it is async by default, what could explain the slowdown? I've seen as little as 2x and as much as 10x worse reply time with 2 nodes than I see with 1 node... This was measured with 10 clients / minute = 1/6 req /sec. Using Jboss 3.0.8 + Jetty, jetty replication enabled, multicast messages bound to ethernet interface as I'm using a LVS-DR balancing for wich I had to configure a loopback adapter. And using Windows 2000 with j2sdk 1.4.1_01
----- Original Message ----- From: "Bela Ban" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, September 25, 2003 1:15 AM Subject: Re: [JBoss-user] Async replication messages possible? > Which repl are you referring to ? > > Session (Tomcat, Jetty) ? > EJBs ? > > I think replis async by default. > > > Joao Clemente wrote: > > >Hi. > >(This message is in particular for Bela, but others feedback is welcome) > > > >I'm running some tests and even with a very low request rate (5 req / minute > >= 1 request / 12 sec) I'm seeing my respose times getting worse by 2 to 5 > >times as soon as I let a second node join the cluster. I am assuming it's > >because of a overhead of Jgroups "ack'ing" the replication before letting > >the master node reply to the user. > >(question for bela) Can it be? > >If so, can I put jgroups in "async" mode, either delaying the replication > >message or not waiting for the "ack" from replicas? > > > >Thank you > >Joao Clemente > > > > > >--- > >Outgoing mail is certified Virus Free. > >Checked by AVG anti-virus system (http://www.grisoft.com). > >Version: 6.0.520 / Virus Database: 318 - Release Date: 18-09-2003 > > > > > > > >------------------------------------------------------- > >This sf.net email is sponsored by:ThinkGeek > >Welcome to geek heaven. > >http://thinkgeek.com/sf > >_______________________________________________ > >JBoss-user mailing list > >[EMAIL PROTECTED] > >https://lists.sourceforge.net/lists/listinfo/jboss-user > > > > > > > > -- > Bela Ban > http://www.jgroups.org > Cell: (408) 316-4459 > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
