Seems reasonable to me. I haven't seen anyone running versions <0.18.3
in the last 2-3 years, and given the growth in Hadoop usage, I'd say
95+% of the user community didn't even start using Hadoop until
0.20.x. 0.18 seems like a reasonable (and still conservative) cut-off
On Fri, Mar 23, 2012 at 4:43 PM, Eli Collins <[EMAIL PROTECTED]> wrote:
> Hey gang,
> I filed HDFS-3137 so that the 0.23 releases would only support
> upgrades from Hadoop version 0.18 or later. People on versions before
> 0.18 (don't think there are many, if any, people running these) would
> have to upgrade to a version like 1.0 and then upgrade again from
> there if they wanted to move to 0.23. I think that should be fine but
> wanted to call it out here, give people an opportunity to chime in on
> the jira.
> The motivation is that I'd like to do some HDFS cleanup to enable
> another change that would break v0.17 and earlier.
Software Engineer, Cloudera