On Tue, Dec 20, 2011 at 12:56 AM, Andrey Stepachev <[email protected]> wrote: > I see, that most issues addressed to HA branch. > What version this branch is applied to? 0.22 or > i should build hadoop from sources?
It's currently only available in the HDFS-1623 branch, which is in active development and definitely shouldn't be used unless you plan to help us finish debugging it :) There are still some known bugs and deficiencies to address before we merge. The plan is to merge it into 0.23 but not 0.22 - it will hopefully be merged in January. We'll also make it available in CDH4 beta releases early next year. -Todd > > 20 декабря 2011 г. 11:46 пользователь Todd Lipcon <[email protected]>написал: > >> Hi Andrey, >> >> I don't think anyone has ever run Ceph in a production use case, much >> less run it in a production use case with HBase. >> >> The SPOF problem is currently being addressed and will be available >> for production use by the middle of next calendar year. It will be >> available for preview/beta usage in Q1 (it's already working in >> development setups - feel free to follow HDFS-1623 for details) >> >> I think you're way better off waiting for the HA NameNode support in >> HDFS than going with an unproven FS like Ceph. Ceph certainly has >> promise and is a nice design, but it hasn't had the years of pounding >> that HDFS has. >> >> -Todd >> >> On Mon, Dec 19, 2011 at 10:23 PM, Andrey Stepachev <[email protected]> >> wrote: >> > Hi all. >> > >> > I have requirements to use hbase in several datacenters. >> > But HDFS has as SPOF, so we can't use it. >> > I plan to use ceph as the file system for hbase. >> > >> > In general, interested in issues of: >> > a) use the hadoop + сeph in the production environment >> > b) using hbase + ceph in the production environment >> > >> > In particular: >> > Ceph Wiki states that the integration of hadoop/ceph has the problem in >> the >> > form of modification dates of the files. >> > Does hbase uses modification times for some critical tasks? >> > >> > -- >> > Andrey. >> >> >> >> -- >> Todd Lipcon >> Software Engineer, Cloudera >> > > > > -- > Андрей. -- Todd Lipcon Software Engineer, Cloudera
