Our coprocessors are all in com.salesforce.phoenix.coprocessor. The
particular one that handles TopN is ScanRegionObserver.
The expression evaluation classes are in
com.salesforce.phoenix.expression, with a base interface of Expression.
The type system is in com.salesforce.phoenix.schema. Take a
why off-list? it would be better share here.
--Send from my Sony mobile.
On May 18, 2013 12:14 AM, "James Taylor" wrote:
> Anil,
> Yes, everything is in the Phoenix GitHub repo. Will give you more detail
> of specific packages and classes off-list.
> Thanks,
>
> James
>
> On 05/16/2013 05:33 PM,
Anil,
Yes, everything is in the Phoenix GitHub repo. Will give you more detail
of specific packages and classes off-list.
Thanks,
James
On 05/16/2013 05:33 PM, anil gupta wrote:
Hi James,
Is this implementation present in the GitHub repo of Phoenix? If yes, can
you provide me the package nam
Hi James,
Is this implementation present in the GitHub repo of Phoenix? If yes, can
you provide me the package name/classes?
I haven't got the opportunity to try out Phoenix yet but i would like to
have a look at the implementation.
Thanks,
Anil Gupta
On Thu, May 16, 2013 at 4:15 PM, James Ta
Hi Anil,
No HBase changes were required. We're already leveraging coprocessors in
HBase which is a key enabler. The other pieces needed are:
- a type system
- a means to evaluate an ORDER BY expression on the server
- memory tracking/throttling (the topN for each region are held in
memory until
Hi James,
You have mentioned support for TopN query. Can you provide me HBase Jira
ticket for that. I am also doing similar stuff in
https://issues.apache.org/jira/browse/HBASE-7474. I am interested in
knowing the details about that implementation.
Thanks,
Anil Gupta
On Thu, May 16, 2013 at 12:
We are pleased to announce the immediate availability of Phoenix 1.2
(https://github.com/forcedotcom/phoenix/wiki/Download). Here are some of
the release highlights:
* Improve performance of multi-point and multi-range queries (20x plus)
using new skip scan
* Support TopN queries (3-70x faste