hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Yu <yuzhih...@gmail.com>
Subject Re: custom filter on hbase 0.96
Date Wed, 15 Oct 2014 21:43:05 GMT
Nishanth:
Good question.

As a general coding guide, writing unit test is always a good start. Using
Matt's case as an example, take a look at TestPrefixFilter.

There're various unit tests for Filters in hbase code.

Cheers

On Wed, Oct 15, 2014 at 2:30 PM, Nishanth S <nishanth.2884@gmail.com> wrote:

> Hi Ted ,
>  Since I am also working on similar thing is there a way we can  first test
> the filter on client side?.You know what I  mean without disrupting others
> who are using the same cluster for other work?
>
> Thanks,
> Nishanth
>
> On Wed, Oct 15, 2014 at 3:17 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > bq. Or create a new file, compile it into ...
> >
> > You should go with the above approach.
> >
> > On Wed, Oct 15, 2014 at 2:08 PM, Matt K <matvey1414@gmail.com> wrote:
> >
> > > Hi all,
> > >
> > > I'm trying to get a custom filter to work on HBase 0.96. After some
> > > searching, I found that starting from 0.96, the implementer is required
> > to
> > > implement "toByteArray" and "parseFrom" methods, using Protocol
> Buffers.
> > > But I'm having trouble with the "how".
> > >
> > > The "proto" file for the existing filters is located here:
> > >
> > >
> >
> https://github.com/apache/hbase/blob/master/hbase-protocol/src/main/protobuf/Filter.proto
> > >
> > > Am I supposed to modify that file? Or create a new file, compile it
> into
> > > Java, and package it up with the filter?
> > >
> > > In the meantime, I've taken a shortcut that's not working. Here's my
> > code:
> > > http://pastebin.com/iHFKu9Xz
> > >
> > > I'm using "PrefixFilter", which comes with HBase, since I'm also
> > filtering
> > > by "prefix". However, that errors out with the following:
> > > http://pastebin.com/zBg47p6Z
> > >
> > > Thanks in advance for helping!
> > >
> > > -Matt
> > >
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message