ISPN-1786 is related to a potential bug in the config parser that didn't pick up numVirtualNodes settings. As well as a proposal for a different default value for numVirtualNodes - which really should be a separate JIRA.
On 27 Jan 2012, at 07:03, Bela Ban wrote: > Regarding ISPN-1786, I'd like to work with Sanne/Mircea on trying out > the new UNICAST2. In my local tests, I got a 15% speedup, but this is > JGroups only, so I'm not sure how big the impact would be on Infinispan. > > If we see a big speedup, UNICAST2 and NAKACK2 could then be backported > to a 3.0.4, and added to 5.1.1. > > However, I want to spend some time on testing UNICAST2, so this won't be > available tomorrow... > > > On 1/26/12 11:42 PM, Manik Surtani wrote: >> I really didn't want to do this, but it looks like a 5.1.1 will be >> necessary. The biggest (critical, IMO, for 5.1.1) issues I see are: >> >> 1. https://issues.jboss.org/browse/ISPN-1786 - I presume this has to do with >> a bug Mircea spotted that virtual nodes were not being enabled by the config >> parser. Which meant that even in the case of tests enabling virtual nodes, >> we still saw uneven distribution and hence poor performance (well spotted, >> Mircea). >> 2. Related to 1, I don't think there is a JIRA for this yet, to change the >> default number of virtual nodes from 1 to 100 or so. After we profile and >> analyse the impact of enabling this by default. I'm particularly concerned >> about (a) memory footprint and (b) effects on Hot Rod relaying topology >> information back to clients. Maybe 10 is a more sane default as a result. >> 3. https://issues.jboss.org/browse/ISPN-1788 - config parser out of sync >> with XSD! >> 4. https://issues.jboss.org/browse/ISPN-1798 - forceReturnValues parameter >> in the RemoteCacheManager.getCache() method is ignored! >> >> In addition, we may as well have these "nice to have's" in as well: >> >> https://issues.jboss.org/browse/ISPN-1787 >> https://issues.jboss.org/browse/ISPN-1793 >> https://issues.jboss.org/browse/ISPN-1795 >> https://issues.jboss.org/browse/ISPN-1789 >> https://issues.jboss.org/browse/ISPN-1784 >> >> What do you think? Anything else you feel that is crucial for a 5.1.1? I'd >> like to do this sooner rather than later, so we can still focus on 5.2.0. >> So please respond asap. >> >> Paul, I'd also like your thoughts on this from an AS7 perspective. >> >> Cheers >> Manik >> >> -- >> Manik Surtani >> [email protected] >> twitter.com/maniksurtani >> >> Lead, Infinispan >> http://www.infinispan.org >> >> >> >> >> >> >> >> _______________________________________________ >> infinispan-dev mailing list >> [email protected] >> https://lists.jboss.org/mailman/listinfo/infinispan-dev > > -- > Bela Ban > Lead JGroups (http://www.jgroups.org) > JBoss / Red Hat > _______________________________________________ > infinispan-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/infinispan-dev -- Manik Surtani [email protected] twitter.com/maniksurtani Lead, Infinispan http://www.infinispan.org _______________________________________________ infinispan-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/infinispan-dev
