Create custom filter on HBase 0.96.1.1-cdh5.0.1

[gabriela montiel]

Hi all,

I have been working on migrating a custom filter used in HBase 0.94 to 
make it work on HBase 0.96.1.1. This custom filter extends the 
FilterBase API and receives only two byte arrays. According to the 
documentation both toByteArray() and parseFrom(byte[]) should be 
implemented. After adding this APIs, copying the jar to all region 
servers and restarting HBase, I noticed that the filter is not working 
(all records are retrieved). I don't get any errors, but checking out 
the trace the constructor and toByteArray() APIs are only called but no 
other operation on the filter is executed.

I saw that you need to use FilterProtos from the protobuf to write/read 
the byte array to rebuild the filter, however there is no documentation 
on how to update these APIs to add my custom filter. Do you have any 
idea on what we are doing wrong?

Thanks,

Gaby