I don't follow. For example the QJM and HA NameNode configuration are designed together to eliminate the SPOF in HDFS, within HDFS. I don't see how they make sense separately.
On Thursday, September 27, 2012, Konstantin Shvachko wrote: > The SPOF is in HDFS. This project is about shared storage > implementation, that could be replaced by NFS or BookKeeper or > something else. > Suppose failure happened because NFS failed. Where do you go? NetApp. > Same if QJ failed. You go to the creators, which will be somewhat > closer than NetApp, because it is still Hadoop. > > --Konst > > On Thu, Sep 27, 2012 at 12:50 AM, Stack <st...@duboce.net <javascript:;>> > wrote: > > On Wed, Sep 26, 2012 at 4:21 PM, Konstantin Shvachko > > <shv.had...@gmail.com <javascript:;>> wrote: > >> Don't understand your argument. Else where? > > > > You suggest users should download HDFS and then go to another project > > (or subproject) -- i.e. 'elsewhere' -- to get a fundamental, a fix for > > the SPOF. IMO, the SPOF-fix belongs in HDFS core. > > > > St.Ack > -- Best regards, - Andy Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
