And u have to implement transformCell(*final* Cell v) in your custom Filter.
JFYI -Anoop- On Fri, Sep 12, 2014 at 4:36 AM, Nishanth S <nishanth.2...@gmail.com> wrote: > Sure Sean.This is much needed. > > -Nishan > > On Thu, Sep 11, 2014 at 3:57 PM, Sean Busbey <bus...@cloudera.com> wrote: > > > I filed HBASE-11950 to get some details added to the book on this > topic[1]. > > > > Nishanth, could you follow that ticket and give feedback on whatever > update > > ends up proposed? > > > > [1]: https://issues.apache.org/jira/browse/HBASE-11950 > > > > On Thu, Sep 11, 2014 at 4:40 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > > > See http://search-hadoop.com/m/DHED4xWh622 > > > > > > On Thu, Sep 11, 2014 at 2:37 PM, Nishanth S <nishanth.2...@gmail.com> > > > wrote: > > > > > > > Hey All, > > > > > > > > I am sorry if this is a naive question.Do we need to generate a proto > > > file > > > > using proto buffer compiler when implementing a filter.I did not see > > that > > > > any where in the documentation.Can some one help please? > > > > > > > > On Thu, Sep 11, 2014 at 12:41 PM, Nishanth S < > nishanth.2...@gmail.com> > > > > wrote: > > > > > > > > > Thanks Dima and Ted.Yes I need to return the first the 1000 > > > > > characters.There is no matching involved. > > > > > > > > > > -Nishan > > > > > > > > > > On Thu, Sep 11, 2014 at 12:24 PM, Ted Yu <yuzhih...@gmail.com> > > wrote: > > > > > > > > > >> In Nishanth's case, the 5K message is stored in one KeyValue, > right > > ? > > > > >> > > > > >> If only the first 1000 Characters of this message are to be > > returned, > > > > >> a new KeyValue > > > > >> needs to be composed and returned. > > > > >> > > > > >> Cheers > > > > >> > > > > >> On Thu, Sep 11, 2014 at 11:09 AM, Dima Spivak < > dspi...@cloudera.com > > > > > > > >> wrote: > > > > >> > > > > >> > Hi Nishanth, > > > > >> > > > > > >> > Take a look at http://hbase.apache.org/book/client.filter.html > . > > > If I > > > > >> > understand your use case correctly, you might want to look at > > > > >> > RegexStringComparator to match the first 1000 characters of your > > > > column > > > > >> > qualifier. > > > > >> > > > > > >> > -Dima > > > > >> > > > > > >> > On Thu, Sep 11, 2014 at 12:37 PM, Nishanth S < > > > nishanth.2...@gmail.com > > > > > > > > > >> > wrote: > > > > >> > > > > > >> > > Hi All, > > > > >> > > > > > > >> > > I have an hbase table with multiple cfs (say c1,c2,c3).Each of > > > this > > > > >> > column > > > > >> > > family has a column 'message' which is about 5K.What I need > to > > do > > > > is > > > > >> to > > > > >> > > grab only the first 1000 Characters of this message when I do > a > > > get > > > > on > > > > >> > the > > > > >> > > table using row Key.I was thinking of using filters to do > this > > on > > > > >> hbase > > > > >> > > sever side.Can some one help me on how to go about this. > > > > >> > > > > > > >> > > > > > > >> > > Thanks, > > > > >> > > Nishan > > > > >> > > > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > -- > > Sean > > >
