At what rate are you ingesting data, Viswa? On Monday, September 19, 2016, Viswanathan J <jayamviswanat...@gmail.com> wrote:
> Thanks Eric. > > So addition of new region servers will not impact the regions which I > splitted as 3 while writing and reading. > > After adding 2 region servers I will change the pre-split to 5 for r/w. > > On Mon, Sep 19, 2016 at 8:05 PM, Eric Pogrelis <daywalke...@gmail.com > <javascript:;>> > wrote: > > > V, > > > > Regionservers (what you said you're adding) and regions are two different > > things. If you are manually splitting such that you have only 3 regions, > > then if you add additional regionservers, those regionservers may not be > > serving any regions. To put that a better way, if you have a single table > > with 3 regions, then there are only 4 regions in total -- your 3-region > > table + the region for the hbase meta table. So, if you have 5 > > regionservers but only 4 regions to be served, then one regionserver will > > be idle. To take advantage of the additional regionservers you would want > > to modify your split such that there are enough regions that all the > > regionservers have a region to serve. > > > > On Mon, Sep 19, 2016 at 9:16 AM, Viswanathan J < > jayamviswanat...@gmail.com <javascript:;> > > > wrote: > > > >> Thanks Eric for the update. > >> > >> Re-balancing will happen automatically, but while writing/reading in > >> HBase we're forming the rowkey by pre-splitting based on 3 regions. So > if I > >> add new regions to the cluster while reading data from 5 rs it will be > >> impacted because written data only on 3 regions? > >> > >> Thanks, > >> Viswa.J > >> > >> On Sun, Sep 18, 2016 at 11:17 PM, Eric Pogrelis <daywalke...@gmail.com > <javascript:;>> > >> wrote: > >> > >>> Absent other changes, the existing regions will simply be re-balanced > >>> across the new region server count of 5. > >>> > >>> On Fri, Sep 16, 2016 at 9:46 AM, Viswanathan J < > >>> jayamviswanat...@gmail.com <javascript:;>> wrote: > >>> > >>>> Hi, > >>>> > >>>> Currently I have 3 region servers and reading/storing data based on > >>>> pre-split(hashing). If I need to add 2 more region servers how it will > >>>> impact while reading and writing the data. Because currently pre-split > >>>> hashing only based on 3 rs. > >>>> > >>>> Please help. > >>>> > >>>> -- > >>>> Regards, > >>>> Viswa.J > >>>> > >>>> -- > >>>> > >>>> --- > >>>> You received this message because you are subscribed to the Google > >>>> Groups "CDH Users" group. > >>>> To unsubscribe from this group and stop receiving emails from it, send > >>>> an email to cdh-user+unsubscr...@cloudera.org <javascript:;>. > >>>> For more options, visit https://groups.google.com/a/cl > >>>> oudera.org/d/optout. > >>>> > >>> > >>> -- > >>> > >>> --- > >>> You received this message because you are subscribed to the Google > >>> Groups "CDH Users" group. > >>> To unsubscribe from this group and stop receiving emails from it, send > >>> an email to cdh-user+unsubscr...@cloudera.org <javascript:;>. > >>> For more options, visit https://groups.google.com/a/cl > >>> oudera.org/d/optout. > >>> > >> > >> > >> > >> -- > >> Regards, > >> Viswa.J > >> > >> -- > >> > >> --- > >> You received this message because you are subscribed to the Google > Groups > >> "CDH Users" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to cdh-user+unsubscr...@cloudera.org <javascript:;>. > >> For more options, visit https://groups.google.com/a/ > cloudera.org/d/optout > >> . > >> > > > > -- > > > > --- > > You received this message because you are subscribed to the Google Groups > > "CDH Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to cdh-user+unsubscr...@cloudera.org <javascript:;>. > > For more options, visit https://groups.google.com/a/ > cloudera.org/d/optout. > > > > > > -- > Regards, > Viswa.J > -- -Dima
