On Mon, Aug 12, 2013 at 2:49 PM, Robert Coli <rc...@eventbrite.com> wrote:
> On Mon, Aug 12, 2013 at 12:31 PM, srmore <comom...@gmail.com> wrote: > >> There are some operations that demand the use lock and I was wondering >> whether Cassandra has a built in locking mechanism. After hunting the web >> for a while it appears that the answer is no, although I found this >> outdated wiki page which describes the algorithm >> http://wiki.apache.org/cassandra/Locking was this implemented ? >> >> It would be great if people on the list can share their experiences / >> best practices about locking. >> > > If your application needs a lot of locking, it is probably not ideal for a > distributed, log structured database with immutable data files. > This was the answer I was afraid of ... , not a lot of locking but now and then I do need it, that said creating the username problem described in the bug pretty much describes my problem. > > That said, Cassandra 2.0 will support CAS via Paxos. Presumably at a much, > much lower throughput than the base system. > > https://issues.apache.org/jira/browse/CASSANDRA-5062 > Thanks a lot for the pointers I will look at some of the solutions described there. > > =Rob > >
