Hi, Ted you are right, hfiles on 0.94 cluster are v2 by default. I actually don't need the convert tool.
To migrate that data to another 0.96 cluster, does it work by copying over hfiles ? How to handle the meta data of the table in the new cluster ? On Tue, Jul 22, 2014 at 3:46 PM, Ted Yu <[email protected]> wrote: > The subject of this thread says '9.4' - I assume you meant '0.94' release. > If so, please make correction in the subject. > > Looking at hbase-default.xml from 0.94 branch: > > <property> > <name>hfile.format.version</name> > <value>2</value> > <description> > The HFile format version to use for new files. Set this to 1 to > test > backwards-compatibility. The default value of this option should > be > consistent with FixedFileTrailer.MAX_VERSION. > </description> > </property> > > Are you running 0.94 cluster with the above config value being 1 ? > > Cheers > > On Tue, Jul 22, 2014 at 3:27 PM, Guangle Fan <[email protected]> wrote: > > > Ted Thanks for your answer! > > > > Actually that wouldn't convert automatically. The problem is 0.94 is > using > > hfileV1, and that is online cluster that I can't shut down and do hbase > > upgrade/check file, thus I can't convert the file to v2. The idea is copy > > over the hfilleV1 to another 0.96 cluster and convert to hfileV2. Any > handy > > tool there I can use to do the convert and hfile loading in the new > > cluster, or you guys have another way to handle this case ? Converting to > > sequence files ? > > > > > > On Tue, Jul 22, 2014 at 3:00 PM, Ted Yu <[email protected]> wrote: > > > > > Guangle: > > > For 0.94 cluster, you can perform major compaction after which your > > HFiles > > > would be converted to HFileV2. > > > > > > Cheers > > > > > > > > > On Tue, Jul 22, 2014 at 1:54 PM, Guangle Fan <[email protected]> > > wrote: > > > > > > > Thanks Nick! > > > > For some reason, I can't do a in-place upgrading for the cluster. Is > > > there > > > > a tool there I can use to convert hfileV1 to hfileV2 ? > > > > > > > > > > > > > > > > > > > > On Tue, Jul 22, 2014 at 1:43 PM, Nick Dimiduk <[email protected]> > > > wrote: > > > > > > > > > Hi Guangle, > > > > > > > > > > Please have a look at the online book, there's a section on > upgrades. > > > > Also, > > > > > please consider upgrading to 0.98. The 0.96 line is in minimum > > > > maintenance > > > > > mode and 0.98 is considered the stable/production line. > > > > > > > > > > http://hbase.apache.org/book.html#upgrading > > > > > > > > > > Thanks, > > > > > Nick > > > > > > > > > > > > > > > On Tue, Jul 22, 2014 at 1:24 PM, Guangle Fan <[email protected] > > > > > > wrote: > > > > > > > > > > > Hi, All > > > > > > > > > > > > I have hfiles in HBase 9.4 cluster that I want to migrate to > HBase > > > 9.6 > > > > > > cluster. > > > > > > > > > > > > What's the proper process to handle this ? > > > > > > > > > > > > Regards, > > > > > > > > > > > > Guangle > > > > > > > > > > > > > > > > > > > > >
