We didn't change file system version when we changed format in filesystem. Version 6 is the 0.19 format. Version 7 will be hbase 0.20. We haven't made the change before this because there was no means of migrating from version 6 to version 7. I'll commit version number change along with final migration script commit. Will send out a warning and instruction for making the change manually at same time.
St.Ack On Sun, Jul 19, 2009 at 1:04 PM, Ryan Rawson <[email protected]> wrote: > That's a good question - as far as I know, the on disk format hasnt > changed since KeyValue was introduced. Despite the change of this > constant, there hasnt been any change in the actual on disk format... > .regioninfo aside (which get backfilled anyways if they are missing). > > -ryan > > On Sun, Jul 19, 2009 at 11:26 AM, Andrew Purtell<[email protected]> > wrote: > > ... went to "7" at one point, but is now back at "6". What happened? Are > there any planned incompatible filesystem changes before this is put back to > "7"? To be able to run latest trunk without losing a week's worth of > accumulated data, I have been running with a local patch which maintains > HConstants.FILE_SYSTEM_VERSION at "7". > > > > Just trying to gauge the level of pain I may be in store for... > > > > - Andy > > > > > > > > >
