The first release candidate for HBase 2.0.0-alpha4 is up at: https://dist.apache.org/repos/dist/dev/hbase/hbase-2.0.0-alpha4RC0/
Maven artifacts are available from a staging directory here: https://repository.apache.org/content/repositories/orgapachehbase-1178 All was signed with my key at 8ACC93D2 [1] I tagged the RC as 2.0.0-alpha4RC0 (5c4b985f89c99cc8b0f8515a4097c811a0848835) hbase-2.0.0-alpha4 is our fourth alpha release along our march toward hbase-2.0.0. It includes all that was in previous alphas (new assignment manager, offheap read/write path, in-memory compactions, etc.), but had a focus on "Coprocessor Fixup": We no longer pass Coprocessors InterfaceAudience.Private parameters and we cut down on the access and ability to influence hbase core processing (See [2] on why the radical changes in Coprocessor Interface). If you are a Coprocessor developer or have Coprocessors to deploy on hbase-2.0.0, we need to hear about your experience now before we make an hbase-2.0.0 beta. hbase-2.0.0-alpha4 is a rough cut ('alpha'), not-for-production preview of what hbase-2.0.0 will look like. It is meant for devs and downstreamers to test drive and flag us early if we messed up anything ahead of our rolling GAs. The list of features addressed in 2.0.0 so far can be found here [3]. There are thousands. The list of ~2k+ fixes in 2.0.0 exclusively can be found here [4] (My JIRA JQL foo is a bit dodgy -- forgive me if mistakes). I've updated our overview doc. on the state of 2.0.0 [6]. 2.0.0-beta-1 will be our next release. Its theme is the "Finishing up 2.0.0" release. Here is the list of what we have targeted for beta-1 [5]. Check it out. Shout if there is anything missing. We may do a 2.0.0-beta-2 if a need. We'll see. Please take this alpha for a spin especially if you are a Coprocessor developer or have a Coprocessor you want to deploy on hbase-2.0.0. Please vote on whether it ok to put out this RC as our first alpha (bar is low for an 'alpha' -- e.g. CHANGES.txt has not been updated). Let the VOTE be open for 72 hours (Saturday) Thanks, Your 2.0.0 Release Manager 1. http://pgp.mit.edu/pks/lookup?op=get&search=0x9816C7FC8ACC93D2 2. Why CPs are Incompatible: https://docs.google.com/document/d/1WCsVlnHjJeKUcl7wHwqb4z9iEu_ktczrlKHK8N4SZzs/edit#heading=h.9k7mjbauv0wj 3. https://goo.gl/scYjJr 4. https://goo.gl/tMHkYS 5. https://issues.apache.org/jira/projects/HBASE/versions/12340861 6. https://docs.google.com/document/d/1WCsVlnHjJeKUcl7wHwqb4z9iEu_ktczrlKHK8N4SZzs/
