Vladimir i am on hortonworks On Wed, Jan 28, 2015 at 1:34 AM, Vladimir Rodionov <[email protected]> wrote:
> CDH 5.2.1 (0.98-based) has HBASE-10648. > > -Vladimir > > On Tue, Jan 27, 2015 at 11:58 AM, Gaurav Agarwal <[email protected]> > wrote: > > > Yes that's what i wanted. Thanks to both of you. so in the current > version > > of Hbase i can't use this feature of memorystore. > > > > On Wed, Jan 28, 2015 at 1:17 AM, Ted Yu <[email protected]> wrote: > > > > > Thanks Lars for chiming in. > > > > > > Gaurav: > > > See the following for details: > > > HBASE-10648 Pluggable Memstore > > > > > > Cheers > > > > > > On Tue, Jan 27, 2015 at 11:43 AM, lars hofhansl <[email protected]> > > wrote: > > > > > > > You can plug in your own implementation a memstore if that is what > you > > > > mean. This is supported from 1.0 onwards (i.e. not in a released > > version > > > of > > > > HBase, yet, but soon).If you can decide what to do at the time a data > > > item > > > > is added you can also implement this via coprocessor hooks, for that > > > take a > > > > look at RegionObserver.java. > > > > > > > > -- Lars > > > > From: Gaurav Agarwal <[email protected]> > > > > To: [email protected] > > > > Sent: Tuesday, January 27, 2015 11:14 AM > > > > Subject: Re: Memstore customize > > > > > > > > di yiu want me to explain in better way > > > > > > > > > > > > > > > > On 1/28/15, Gaurav Agarwal <[email protected]> wrote: > > > > > Currently If i will store anything into Hbase table , I can > directly > > > use > > > > > HBASE api to store the data into table. Internally first data will > be > > > > store > > > > > into memoryStore and then it will be flushed as HFile. > > > > > > > > > > Now instead of storing the data directly into Htable , Can i store > > the > > > > data > > > > > into Memorystore with the help of Store Api and perform some > > operations > > > > > there so that will do other operations that we required apart from > > > > sorting > > > > > . It will flush into HFILE when the memory store size is full. > > > > > > > > > > Will it be possible. > > > > > > > > > > Thanks > > > > > > > > > > On Tue, Jan 27, 2015 at 11:53 PM, Ted Yu <[email protected]> > > wrote: > > > > > > > > > >> You mean skipping the HTable API ? > > > > >> > > > > >> Can you tell us more about your use case ? > > > > >> > > > > >> Cheers > > > > >> > > > > >> On Tue, Jan 27, 2015 at 10:20 AM, Gaurav Agarwal < > > > > [email protected]> > > > > >> wrote: > > > > >> > > > > >> > Currently hbase use memstore to store the information before > > > flushing > > > > >> > it > > > > >> to > > > > >> > hFILE. > > > > >> > > > > > >> > Is there any way that i can use the Memstore to write my own key > > > value > > > > >> pair > > > > >> > and then it will get flush that into HFILE. Mean to say can we > use > > > > >> MemStore > > > > >> > to use it in our own way. > > > > >> > > > > > >> > Thanks > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > >
