Hi. Hopefully they will put the presentation online.
Regards. 2009/9/23 Edward Capriolo <[email protected]> > On Wed, Sep 23, 2009 at 3:28 AM, Stas Oskin <[email protected]> wrote: > > By the way, something that I forgot to ask before: > > > > Will the append implementation be as fast, as the write/copy functions? > > > > Regards. > > > > 2009/9/23 Stas Oskin <[email protected]> > > > >> Thanks, I exactly wanted to ask this for our R&D roadmap. > >> > >> 2009/9/23 Aaron Kimball <[email protected]> > >> > >> Or maybe more pessimistically, the second "stable" append > implementation. > >>> > >>> It's not like HADOOP-1700 wasn't intended to work. It was just found > not > >>> to > >>> after the fact. Hopefully this reimplementation will succeed. If you're > >>> running a cluster that contains mission-critical data that cannot > tolerate > >>> corruption or loss, you shouldn't jump on the new-feature bandwagon > until > >>> it's had time to prove itself in the wild. > >>> > >>> But yes, we hope that appends will really-truly work in 0.21. > >>> Experimental/R&D projects should be able to plan on having a working > >>> append > >>> function in 0.21. > >>> > >>> - Aaron > >>> > >>> On Sun, Sep 20, 2009 at 3:58 PM, Stas Oskin <[email protected]> > wrote: > >>> > >>> > Hi. > >>> > > >>> > Just to understand the road-map, 0.21 will be the first stable > "append" > >>> > implementation? > >>> > > >>> > Regards. > >>> > > >>> > 2009/9/20 Owen O'Malley <[email protected]> > >>> > > >>> > > > >>> > > On Sep 13, 2009, at 3:08 AM, Stas Oskin wrote: > >>> > > > >>> > > Hi. > >>> > >> > >>> > >> Any idea when the "append" functionality is expected? > >>> > >> > >>> > > > >>> > > A working append is a blocker on HDFS 0.21.0. > >>> > > > >>> > > The code for append is expected to be complete in a few weeks. > >>> Meanwhile, > >>> > > the rest of Common, HDFS, and MapReduce have feature-frozen and > need > >>> to > >>> > be > >>> > > stabilized and all of the critical bugs fixed. I'd expect the first > >>> > releases > >>> > > of 0.21.0 in early November. > >>> > > > >>> > > -- Owen > >>> > > > >>> > > >>> > >> > > > > Also at "hadoop world nyc" http://cloudera.com/hadoop-world-nyc their > is going to be a presentation: > > Low Latency, Random Reads from HDFS, Jay Booth, Elastic Platforms > > That might be of interest to you. >
