Thanks Ian! :-)
On 1/12/12 2:03 PM, "Ian Varley" <[email protected]> wrote: >Vinod, > >The answers to your questions (and so many more!) are easily found in the >HBase Reference Guide: > >http://hbase.apache.org/book.html#schema.versions > >"Excess versions are removed during major compactions." > > - Ian "Doug Meil" Varley ;) > >On Jan 12, 2012, at 10:59 AM, T Vinod Gupta wrote: > >Thanks ill take a look.. meanwhile, i just decreased the versions for my >column families from 3 to 1 and triggered another compaction. does this >make hbase delete the previous versions and keep only the latest one? > >thanks > >On Thu, Jan 12, 2012 at 10:57 AM, kisalay ><[email protected]<mailto:[email protected]>> wrote: > >Vinod, > >U will have to do merge of the regions after the major compact to decrease >the number of regions that you have. You can do either an online or an >offline merge. > >You can pickup the online merge jruby script from the jira >https://issues.apache.org/jira/browse/HBASE-1621 > >~Kisalay > >On Fri, Jan 13, 2012 at 12:13 AM, T Vinod Gupta ><[email protected]<mailto:[email protected]> >wrote: > >so there is no way to make the regions merge since they are much below >region max size? > >On Thu, Jan 12, 2012 at 10:40 AM, Doug Meil ><[email protected]<mailto:[email protected]>>wrote >: > > >Major compactions don't change the number of regions. > > > > > >On 1/12/12 1:35 PM, "T Vinod Gupta" ><[email protected]<mailto:[email protected]>> wrote: > >this is probably a rookie question. but my understanding is that if i >increase the region max file size and then initiate major compaction >manually, the number of regions should ideally go down by the factor >by >which i increased the region max file size. isn't that true? im not >seeing >that happening. ofcourse, my compaction is still underway - so i don't >know >if ill see region count decrease at the very end of it. major >compaction >does do region merging right? > >thanks > > > > > >
