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From Otis Gospodnetic <otis.gospodne...@gmail.com>
Subject Re: Status of HBASE-3529 (Add search to HBase)?
Date Fri, 21 Sep 2012 00:15:27 GMT
I agree with Stack.  I liked that whole approach and it's a shame it
didn't get committed after all the work Jason put into it.

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On Thu, Sep 20, 2012 at 5:32 PM, Stack <stack@duboce.net> wrote:
> On Thu, Sep 20, 2012 at 12:43 PM, Andrew Purtell <apurtell@apache.org> wrote:
>> The issue with the patch on HBASE-3529 is it relies on modifications
>> to HDFS that the author of HBASE-3529 proposed to the HDFS project as
>> https://issues.apache.org/jira/browse/HDFS-2004. The proposal was
>> vetoed. Therefore, further progress on HBASE-3529 as currently
>> implemented is not possible.
> Jason's approach had much merit (IMO).  It warrants study at least.
> Though the indices were written to HDFS, Jason had it so lucene was
> getting local filesystem access by going via the local read
> short-circuit facility [1].  Being able to do this made it so he got
> close to native speeds querying the "HDFS-based" indices.  When Jason
> left it -- he had to get a real job unfortunately -- he was blocked on
> what to do when a region moved.  He wanted to be able to be able to
> immediately pull the indices local on region reopen.  The HDFS fellas
> who commented in the issue cited by Andrew above thought it a little
> dodgy adding API for this special case.
> If you wanted to follow in Jasons footsteps, lets chat.
> St.Ack
> 1. http://hbase.apache.org/book.html#perf.hdfs.configs

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