On Tue, Nov 1, 2011 at 1:00 PM, Andrew Purtell <[email protected]> wrote: >> There will be some deployment of .22 in big shops as far as I know. > > Who are these "big shops"?
EBay is a good example here I'm CCing Konstantin if you want to find out more details. > AFAIK, compared to 0.20.x or 0.23, 0.22 has a number of regressions. I'm NOT sure I agree as far as 0.23 goes. The state of 0.23 is an early alpha. There's lots of work that still need to go into it before it graduates from an alpha stage. As such it is premature to talk about its quality. Now, the question of how long it takes .23 to get to the same point of HDFS stability that .22 has -- is an open one. And I'd rather hear what Konstantin has to say about it. > We need to assess how healthy 0.22 is. It is pretty healthy. If anybody is looking for a stable and up-to-date HDFS feature set -- it is the one I'd recommend taking a look at. It is assumed that MR is slower in .22 compared to 20.205, but frankly, I haven't seen the numbers yet, so I can't speculate. I've run a reasonable # of integration tests on that combo and I liked the results. > How much time/attention should the HBase community pay to what might be a > DoA/ignored release? > Or is that in fact the case (that it is DoA...)? Personally, I think it is extremely unfair to refer to .22 as DoA/ignored. Unless, of course, such statement can be backed up with facts. The facts that I have are such that there will be a reasonably large deployment of Hadoop 0.22 and HBase at EBay makes me believe that such a combination should be of interest to HBase community. Thanks, Roman.
