Migrating to another cluster is for keeping service running non-stop ? Please read http://hbase.apache.org/book.html#upgrade0.96
Cheers On Jul 22, 2014, at 3:49 PM, Guangle Fan <[email protected]> wrote: > 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 >>
