And the regions are well distributed acroos the 12 regionservers.....
On Wed, Mar 6, 2013 at 12:30 PM, kiran <kiran.sarvabho...@gmail.com> wrote: > Yes we profiled the gets after completing the scan only. We have 12 > regionservers. Each table i am doing gets has 40 regions. > > > On Wed, Mar 6, 2013 at 12:21 PM, Stack <st...@duboce.net> wrote: > >> On Tue, Mar 5, 2013 at 8:36 PM, kiran <kiran.sarvabho...@gmail.com> >> wrote: >> >> > Dear All, >> > >> > I had some miserable experience with gets (batch gets) in hbase. I have >> two >> > tables with different rowkeys, columns are distributed across the two >> > tables. >> > >> > Currently what I am doing is scan over one table and get all the >> rowkeys in >> > the first table matching my filter. Then issue a batch get on another >> table >> > to retrieve some columns. But even for 20 gets, the performance is like >> > miserable (almost a second or two for 20 gets which is not acceptable). >> > But, scanning even on few thousands of rows is getting completed in >> > milliseconds. >> > >> > >> What happens if you do those 20 batch gets in isolation, apart from the >> scan? Do you still have miserable performance? >> >> What is your cluster setup like? How many nodes? How many regions? >> >> >> >> > My concern is for about 20 gets if it takes second or two, >> > How can it scale ?? >> > >> >> Normally it does not take this long. Lets figure out what is going on on >> your setup. >> >> St.Ack >> > > > > -- > Thank you > Kiran Sarvabhotla > > -----Even a correct decision is wrong when it is taken late > > -- Thank you Kiran Sarvabhotla -----Even a correct decision is wrong when it is taken late
