Andrey: A quick search led me to https://github.com/toddlipcon where you would be able to find: https://github.com/toddlipcon/hadoop-common
Cheers On Sat, Dec 24, 2011 at 12:39 PM, Andrey Stepachev <[email protected]> wrote: > 23 декабря 2011 г. 22:48 пользователь Todd Lipcon <[email protected] > >написал: > > > 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. > > > > Looks like this is one of possible scenarios :). We need > some solution for HA, but no one (except MapR) still exists. > So we must use MapR (costs, closed) or debug some > not-ready-yet solution. > > > > > > 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. > > > > Sounds good. But still can't find such branch in cloudera (or any other) > github > repositories. > Is it publicly available right now, or it in some private repository? > > > > > > -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 > > > > > > -- > Андрей. >
