[usability] Soft limit for eager region splitting of young tables -----------------------------------------------------------------
Key: HBASE-5386 URL: https://issues.apache.org/jira/browse/HBASE-5386 Project: HBase Issue Type: New Feature Reporter: Jean-Daniel Cryans Fix For: 0.94.0 Coming out of HBASE-2375, we need a new functionality much like hypertable's where we would have a lower split size for new tables and it would grow up to a certain hard limit. This helps usability in different ways: - With that we can set the default split size much higher and users will still have good data distribution - No more messing with force splits - Not mandatory to pre-split your table in order to get good out of the box performance The way Doug Judd described how it works for them, they start with a low value and then double it every time it splits. For example if we started with a soft size of 32MB and a hard size of 2GB, it wouldn't be until you have 64 regions that you hit the ceiling. On the implementation side, we could add a new qualifier in .META. that has that soft limit. When that field doesn't exist, this feature doesn't kick in. It would be written by the region servers after a split and by the master when the table is created with 1 region. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira