It is considered good manners :) Seriously, if you want to attract a community you have an obligation to tell them when you're going to jerk the rug out from under their feet.
On Sat, Nov 13, 2010 at 3:27 PM, Konstantin Boudnik <c...@apache.org> wrote: > It doesn't answer my question. I guess I will have to look for the answer > somewhere else.... > > On Sat, Nov 13, 2010 at 03:22PM, Steve Lewis wrote: >> Java libraries are VERY reluctant to change major classes in a way that >> breaks backward compatability - >> NOTE that while the 0.18 packages are deprecated, they are separate from >> the 0.20 packages allowing >> 0.18 code to run on 0.20 systems - this is true of virtually all Java >> libraries >> >> On Sat, Nov 13, 2010 at 3:08 PM, Konstantin Boudnik <c...@apache.org> wrote: >> >> > As much as I love ranting I can't help but wonder if there were any >> > promises >> > to make 0.21+ be backward compatible with <0.20 ? >> > >> > Just curious? >> > >> > On Sat, Nov 13, 2010 at 02:50PM, Steve Lewis wrote: >> > > I have a long rant at http://lordjoesoftware.blogspot.com/ on this but >> > > the moral is that there seems to have been a deliberate decision that >> > 0,20 >> > > code will may not be comparable with - >> > > I have NEVER seen a major library so directly abandon backward >> > compatability >> > > >> > > >> > > On Fri, Nov 12, 2010 at 8:04 AM, Sebastian Schoenherr < >> > > sebastian.schoenh...@student.uibk.ac.at> wrote: >> > > >> > > > Hi Steve, >> > > > we had a similar problem. We've compiled our code with version 0.21 but >> > > > included the wrong jars into the classpath. (version 0.20.2; >> > > > NInputFormat.java). It seems that Hadoop changed this class to an >> > interface, >> > > > maybe you've a simliar problem. >> > > > Hope this helps. >> > > > Sebastian >> > > > >> > > > >> > > > Zitat von Steve Lewis <lordjoe2...@gmail.com>: >> > > > >> > > > >> > > > Cassandra sees this error with 0.21 of hadoop >> > > >> >> > > >> Exception in thread "main" java.lang.IncompatibleClassChangeError: >> > Found >> > > >> interface org.apache.hadoop.mapreduce.JobContext, but class was >> > expected >> > > >> >> > > >> I see something similar >> > > >> Error: Found interface >> > org.apache.hadoop.mapreduce.TaskInputOutputContext, >> > > >> but class was expected >> > > >> >> > > >> I find this especially puzzling >> > > >> since org.apache.hadoop.mapreduce.TaskInputOutputContext IS a class >> > not an >> > > >> interface >> > > >> >> > > >> Does anyone have bright ideas??? >> > > >> >> > > >> -- >> > > >> Steven M. Lewis PhD >> > > >> 4221 105th Ave Ne >> > > >> Kirkland, WA 98033 >> > > >> 206-384-1340 (cell) >> > > >> Institute for Systems Biology >> > > >> Seattle WA >> > > >> >> > > >> >> > > > >> > > > >> > > > >> > > >> > > >> > > -- >> > > Steven M. Lewis PhD >> > > 4221 105th Ave Ne >> > > Kirkland, WA 98033 >> > > 206-384-1340 (cell) >> > > Institute for Systems Biology >> > > Seattle WA >> > >> > -----BEGIN PGP SIGNATURE----- >> > Version: GnuPG v1.4.10 (GNU/Linux) >> > >> > iF4EAREIAAYFAkzfGnwACgkQenyFlstYjhK6RwD+IdUVZuqXACV9+9By7fMiy/MO >> > Uxyt4o4Z4naBzvjMu0cBAMkHLuHFHxuM5Yzb7doeC8eAzq+brsBzVHDKGeUD5FG4 >> > =dr5x >> > -----END PGP SIGNATURE----- >> > >> > >> >> >> -- >> Steven M. Lewis PhD >> 4221 105th Ave Ne >> Kirkland, WA 98033 >> 206-384-1340 (cell) >> Institute for Systems Biology >> Seattle WA > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > > iF4EAREIAAYFAkzfHswACgkQenyFlstYjhKtUAD+Nu/gL5DQ+v9iC89dIaHltvCK > Oa6HOwVWNXWksUxhZhgBAMueLiItX6y4jhCKA5xCOqAmfxA0KZpTkyZr4+ozrazg > =wScC > -----END PGP SIGNATURE----- > > -- Lance Norskog goks...@gmail.com
