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The "HBase/Original021Roadmap" page has been changed by stack. http://wiki.apache.org/hadoop/HBase/Original021Roadmap -------------------------------------------------- New page: HBase 0.21 Roadmap <Anchor(new021)>> 0.21 RoadMap, [[http://www.meetup.com/hackathon/calendar/13063062/|Hackathon3]] draft <Anchor(original021)>> Here is the old HBase 0.21 list, made for the timeframe, approximately August-September of 2009. It was drafted at Hackathon2 at StumbleUpon in 08/2009. Its now obsoleted by the above, by the new roadmap cast at [[http://www.meetup.com/hackathon/calendar/13063062/|Hackathon3]]. Some of the below had detail added: [[http://devblog.streamy.com/2009/08/09/hbase-hackathon-2-day-one/|HBase Hackathon 2 Wrap-Up: Day One]]. * Data integrity * Insure that proper append() support in HDFS actually closes the WAL last block write hole '''Still not done in 04/2010 -- Stack''' * HBase-FSCK [[https://issues.apache.org/jira/browse/HBASE-7|HBASE-7]] -- Suggest making this a blocker for 0.21. '''Still not done in 04/2010 -- Stack''' * Master rewrite / Move more state management to ZooKeeper '''Still not done in 04/2010 -- Stack''' * Host HTD and HCD in ZK with copies in META only for cold boot scenarios [[https://issues.apache.org/jira/browse/HBASE-1730|HBASE-1730]] * Region assignment via ZK primitives * HRS load state sharing * Replication [[https://issues.apache.org/jira/browse/HBASE-1295|HBASE-1295]] '''Still not done in 04/2010 -- Stack''' * Unit test speed up by order of magnitude [[https://issues.apache.org/jira/browse/HBASE-410|HBASE-410]] [[https://issues.apache.org/jira/browse/HBASE-1556|HBASE-1556]] '''Still not done in 04/2010 -- Stack''' * New RPC (Avro? Thrift?) [[https://issues.apache.org/jira/browse/HBASE-794|HBASE-794]] -- for speed improvements and to get away from having to manually set 'handlers'. '''Still not done in 04/2010 -- Stack''' * C/C++ client API [[https://issues.apache.org/jira/browse/HBASE-1015|HBASE-1015]] '''Still not done in 04/2010 -- Stack''' * New UI webapp -- Currently if master transistion, UI transitions with master. If 5 masters, where's my UI after master failover? '''Still not done in 04/2010 -- Stack''' * Uploader that writes the filesystem rather than the HBase API [[https://issues.apache.org/jira/browse/HBASE-48|HBASE-48]] -- Is whats there sufficient? '''Done for single-family case -- Stack''' * Distributed log splitting [[https://issues.apache.org/jira/browse/HBASE-1364|HBASE-1364]] '''Still not done in 04/2010 -- Stack''' * Pool of commit loggers in each HRegionServer [[https://issues.apache.org/jira/browse/HBASE-1416|HBASE-1416]] '''Still not done in 04/2010 -- Stack''' * Refactor HRS [[https://issues.apache.org/jira/browse/HBASE-1406|HBASE-1406]] '''Still not done in 04/2010 -- Stack''' * Intra-row scanning [[https://issues.apache.org/jira/browse/HBASE-1537|HBASE-1537]] '''Done -- Stack''' * Bloom filters revisit [[https://issues.apache.org/jira/browse/HBASE-1200|HBASE-1200]] '''Still not done in 04/2010 -- Stack''' * Update thrift IDL to match new, rich hbase API [[https://issues.apache.org/jira/browse/HBASE-1744|HBASE-1744]] '''Still not done in 04/2010 -- Stack''' * [[http://wiki.apache.org/hadoop/Hbase/Stargate#8|Stargate Roadmap]]
