Of course I talked too soon. I saw a corrupted commitlog some days back after killing cassandra and I just came across a committed hints file after a cluster restart for some config changes :( Will look into that.
Otherwise, not defaults, but close. The dataset is fed from scratch so yes, memtable_total_space is there. Some option tuning here and there and a few extra GC options and a relatively large patch which makes more compact serialization (this may help a bit...) Most of the tuning dates back to cassandra 0.6/0.7. It could be an interesting experiment to see if things got worse without them on 0.8. Hopefully I can submit the serialization patch soon. Regards, Terje On Mon, Jun 6, 2011 at 9:12 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > Has this been running w/ default settings (i.e. relying on the new > memtable_total_space_in_mb) or was this an upgrade from 0.7 (or > otherwise had the per-CF memtable settings applied?) > > On Mon, Jun 6, 2011 at 12:00 AM, Terje Marthinussen > <tmarthinus...@gmail.com> wrote: > > 0.8 under load may turn out to be more stable and well behaving than any > > release so far > > Been doing a few test runs stuffing more than 1 billion records into a 12 > > node cluster and thing looks better than ever. > > VM's stable and nice at 11GB. No data corruptions, dead nodes, full GC's > or > > any of the other trouble that plagued early 0.7 releases. > > Still have to test more nasty stuff like rebalancing or recovering failed > > nodes, but so far I would recommend anyone to consider 0.8 over 0.7.x if > > setting up a new system > > Terje > > > > On Fri, Jun 3, 2011 at 5:25 PM, Stephen Connolly > > <stephen.alan.conno...@gmail.com> wrote: > >> > >> Great work! > >> > >> -Stephen > >> > >> P.S. > >> As the release of artifacts to Maven Central is now part of the > >> release process, the artifacts are all available from Maven Central > >> already (for people who use Maven/ANT+Ivy/Gradle/Buildr/etc) > >> > >> On 3 June 2011 00:36, Eric Evans <eev...@rackspace.com> wrote: > >> > > >> > I am very pleased to announce the official release of Cassandra 0.8.0. > >> > > >> > If you haven't been paying attention to this release, this is your > last > >> > chance, because by this time tomorrow all your friends are going to be > >> > raving, and you don't want to look silly. > >> > > >> > So why am I resorting to hyperbole? Well, for one because this is the > >> > release that debuts the Cassandra Query Language (CQL). In one fell > >> > swoop Cassandra has become more than NoSQL, it's MoSQL. > >> > > >> > Cassandra also has distributed counters now. With counters, you can > >> > count stuff, and counting stuff rocks. > >> > > >> > A kickass use-case for Cassandra is spanning data-centers for > >> > fault-tolerance and locality, but doing so has always meant sending > data > >> > in the clear, or tunneling over a VPN. New for 0.8.0, encryption of > >> > intranode traffic. > >> > > >> > If you're not motivated to go upgrade your clusters right now, you're > >> > either not easily impressed, or you're very lazy. If it's the latter, > >> > would it help knowing that rolling upgrades between releases is now > >> > supported? Yeah. You can upgrade your 0.7 cluster to 0.8 without > >> > shutting it down. > >> > > >> > You see what I mean? Then go read the release notes[1] to learn about > >> > the full range of awesomeness, then grab a copy[2] and become a > >> > (fashionably )early adopter. > >> > > >> > Drivers for CQL are available in Python[3], Java[3], and Node.js[4]. > >> > > >> > As usual, a Debian package is available from the project's APT > >> > repository[5]. > >> > > >> > Enjoy! > >> > > >> > > >> > [1]: http://goo.gl/CrJqJ (NEWS.txt) > >> > [2]: http://cassandra.debian.org/download > >> > [3]: http://www.apache.org/dist/cassandra/drivers > >> > [4]: https://github.com/racker/node-cassandra-client > >> > [5]: http://wiki.apache.org/cassandra/DebianPackaging > >> > > >> > -- > >> > Eric Evans > >> > eev...@rackspace.com > >> > > >> > > > > > > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com >
