Adding to what Andrew says. On Sat, Feb 5, 2011 at 11:46 AM, Andrew Purtell <[email protected]> wrote: >> From: Oleg Ruchovets <[email protected]> > >> 1) We want to use multi column families bulk loading. The >> question is what is the status of 0.92? Is it possible to >> use in production? >
You could apply https://issues.apache.org/jira/browse/HBASE-1861 to 0.90. I know of at least one install that has done this successfully bulk loading high volume into HBase. >> 3) Does upgrade from 0.90 to 0.92 has an issues? I mean in >> case we'll start using 0.90 in production and after 0.92 >> will be released : > > It may not be necessary to perform a data migration step, but there is no > guarantee of this. > Just to say that we'll do all we can to make it so there is no need of a migration step upgrading. If the data format changes, we'll do our best to make HBase run with both old and new formats doing runtime migration from the old to new form. This is a goal. If there is a migration step, we'll have tested the migration before release (Reload is not an option we can seriously entertain given we're trying to be all about scaling). That said, so far, I've not seen anything in 0.92 issues that would require the running of a migration upgrading. St.Ack
