Hi devs, Yesterday Stack, Ryan, Todd (from cloudera) and me had a meeting with the FB team about the course of action we should take with regard to Hadoop 0.21. Since Y! doesn't seem committed to release it anytime soon (or even use it), most users will probably stick with Hadoop 0.20.
What it means for us is no HDFS-265 until months and this is not a situation our users should/will tolerate. Dhruba agreed to work on HDFS-200 (and some others) to make sure we can have an equivalent support for sync (at least from the HBase point of view). This work is targeted at Hadoop 0.20 although it won't probably ever be in an Apache release. This means that the current HBase trunk should ideally support both 0.20+HDFS-200 and 0.21 at the same time. I opened HBASE-2233 for that. Todd was mentioning that if HDFS-200 isn't making the rest of Hadoop unstable, they could even package it in some sort of release of theirs and make our users' life easier. Could be a win-win. Should we still name the next major HBase release as 0.21? If it becomes common for HBase to support multiple Hadoop releases, should we still follow their version number? Could it be time for HBase 1.0? Let's hear everyone's opinion. J-D
