I suggest that everything move to 0.21. It is not 100% API compatible, either way, so you can't support both at the same time.
Anything that isn't updated (the Bayes code is the notorious culprit) will be deprecated and removed IMHO. Sean On Sat, May 21, 2011 at 9:44 PM, Shannon Quinn <[email protected]> wrote: > More than happy to do so; the only caveat is that we're effectively > bringing > DistributedRowMatrix up from 0.18 to 0.21, while the rest of Mahout is at > 0.20. From what I can tell, 0.21 doesn't really remove anything, so the > migration should be fairly painless...but if this is a Mahout-wide goal for > a 0.6 release then we may want to create a new issue for that; > DistributedRowMatrix is just one cog of the entire wheel. > > Unless, of course, everyone has been using 0.21 or even 0.22 as you have :) > > On Sat, May 21, 2011 at 2:52 AM, Sean Owen (JIRA) <[email protected]> wrote: > > > > > [ > > > https://issues.apache.org/jira/browse/MAHOUT-537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13037295#comment-13037295 > ] > > > > Sean Owen commented on MAHOUT-537: > > ---------------------------------- > > > > I could, though honestly, I think the better solution at this point is to > > move to Hadoop 0.21 as part of the next release. It is the current > release > > and nearly superseded by 0.22. It has some features we need to move > forward. > > It is closer to what many are using in CDH3/4. The only drawback I see is > > that Amazon EMR is on 0.20.2. However we're releasing 0.5 now for 0.20.2. > > And it is 6 months until we would put out a release needing 0.21, after > > which time I imagine 0.22 is out and EMR makes available 0.21 -- or if it > > doesn't, we have to leave behind support. > > > > So let me open an item for that, and I suggest you can proceed using 0.21 > > features here. > > (That is what I am doing for personal projects and it really simplified > > things. I'm on 0.22 now myself.) > > > > > Bring DistributedRowMatrix into compliance with Hadoop 0.20.2 > > > ------------------------------------------------------------- > > > > > > Key: MAHOUT-537 > > > URL: https://issues.apache.org/jira/browse/MAHOUT-537 > > > Project: Mahout > > > Issue Type: Improvement > > > Components: Math > > > Affects Versions: 0.4, 0.5 > > > Reporter: Shannon Quinn > > > Assignee: Shannon Quinn > > > Fix For: 0.6 > > > > > > Attachments: MAHOUT-537.patch, MAHOUT-537.patch, > > MAHOUT-537.patch, MAHOUT-537.patch > > > > > > > > > Convert the current DistributedRowMatrix to use the newer Hadoop 0.20.2 > > API, in particular eliminate dependence on the deprecated JobConf, using > > instead the separate Job and Configuration objects. > > > > -- > > This message is automatically generated by JIRA. > > For more information on JIRA, see: > http://www.atlassian.com/software/jira > > >
