Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # dev >> Next releases


 Thinking through the next couple of releases here, appreciate f/b.

 # hadoop-2.2.1

 I was looking through commit logs and there is a *lot* of content here (81 commits as on 11/7). Some are features/improvements and some are fixes - it's really hard to distinguish what is important and what isn't.

 I propose we start with a blank slate (i.e. blow away branch-2.2 and start fresh from a copy of branch-2.2.0)  and then be very careful and meticulous about including only *blocker* fixes in branch-2.2. So, most of the content here comes via the next minor release (i.e. hadoop-2.3)

 In future, we continue to be *very* parsimonious about what gets into a patch release (major.minor.patch) - in general, these should be only *blocker* fixes or key operational issues.

 # hadoop-2.3
 I'd like to propose the following features for YARN/MR to make it into hadoop-2.3 and punt the rest to hadoop-2.4 and beyond:
 * Application History Server - This is happening in  a branch and is close; with it we can provide a reasonable experience for new frameworks being built on top of YARN.
 * Bug-fixes in RM Restart
 * Minimal support for long-running applications (e.g. security) via YARN-896
 * RM Fail-over via ZKFC
 * Anything else?


 Overall, I feel like we have a decent chance of rolling hadoop-2.3 by the end of the year.



Arun C. Murthy
Hortonworks Inc.

NOTICE: This message is intended for the use of the individual or entity to
which it is addressed and may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If the reader
of this message is not the intended recipient, you are hereby notified that
any printing, copying, dissemination, distribution, disclosure or
forwarding of this communication is strictly prohibited. If you have
received this communication in error, please contact the sender immediately
and delete it from your system. Thank You.