Re: Using derby BTree new implementation

[Alex Karasulu <ak...@apache.org>]

Any releases out of this library yet?  Got links?

Alex

On Mon, Jun 30, 2008 at 10:15 AM, Emmanuel Lecharny <el...@apache.org>
wrote:

> Hi Kiran,
>
> last spring we had an interesting convo with François Orsini about Derby
> BTree implementation. As we have a new API on top of JDBM, and as they have
> started to redisign their API to get it easier to use, it would be
> interesting to look at what they are doing and see how we can leverage this
> API. They are also interested to know what we think about the new API, so
> any feedback would be good.
>
> The best would for you two guys to get in touch, and see how you can
> collaborate.
>
> wdyt ?
>
> --
> --
> cordialement, regards,
> Emmanuel Lécharny
> www.iktek.com
> directory.apache.org
>
>
>

Re: Using derby BTree new implementation

[Alex Karasulu <ak...@apache.org>]

Looks like they just need to see our Table and Index interfaces along with
the Cursor interface.  We're essentially going to adapt their implementation
to these interfaces.

Alex

On Fri, Jul 4, 2008 at 2:50 AM, Kiran Ayyagari <ay...@gmail.com>
wrote:

> hi All,
>
>  Francois sent a reply to my mail which am attaching here FYI. I yet to
> send a reply ( my be by tonight IST will
>  send him)
>
>  Please add any points if you have w.r.t Francois's mail.
>
> thanks,
> Kiran Ayyagari
>
>
> Emmanuel Lecharny wrote:
>
>> Alex Karasulu wrote:
>>
>>> Any releases out of this library yet?  Got links?
>>>
>>>
>> All I have is
>> http://www.nabble.com/simpler-api-to-the-Derby-store-to18137499.html#a18137499
>>
>> I have been contacted by François Orsini directly, and transfered the mail
>> to Kiran and the dev list.
>>
>> I assume they want us to be guinea pigs, but with brain :) I like the
>> idea. It has many advantages :
>> - we get a direct line with the developpers
>> - we may get what we need in the API
>> - we have one more possible backend
>> - both project get a benefit out of it
>>
>> Bottom line is that we are not stuck with JDBM, but get a maintained BTree
>> code.
>>
>> I didn't had time to go any farther right now, and I think Kiran is the
>> guy when it comes to backend those days. I was just the french guy who
>> shared beers with another french fellow in Amsterdam, and discussed about
>> how our both projects can collaborate :) Wanna me to dig the thing inside
>> out ?
>>
>>
> --
> Kiran Ayyagari
>
> Hi Kiran,
>
> We're currently working on this and I hope we can provide you guys son
> enough with an implemented API for some early test drive.
>
> I have not posted in the directory dev mailing list as the API is not
> available yet.
>
> There is a thread in the Apache Derby dev forum as as far as the motivation
> for this and see how we can deliver it:
>
> http://www.nabble.com/simpler-api-to-the-Derby-store-to18137499.html#a18137499
>
> I'd be interested in knowing more about that new API you have on top of
> JDBM. Do you have any description and Javadoc for it? That would be great
> for us to see how it'd would work against the Derby B-Tree store one.
>
> Also may I ask what were/are the issues you are encountering with JDBM? I
> would assume that concurrency is likely one of them and also not being able
> to get new updates, etc.
>
> Thanks
>
> --francois
>
> Kiran Ayyagari wrote:
>
>>
>> hi Francois,
>>
>>   I have searched directory dev mail archive but haven't found any
>> discussion threads in which you participated
>>   ( infact there were some mails about BTree impl used in JDBM )
>>
>>   Could you let me know about the derby revision in which this new API is
>> present ( will be glad if you can
>>   provide some filenames related to BTree impl instead :) )
>>
>>   Thanks for your time
>>
>> Kiran Ayyagari
>>
>> Emmanuel Lecharny wrote:
>>
>>> Hi Kiran,
>>>
>>> last spring we had an interesting convo with François Orsini about Derby
>>> BTree implementation. As we have a new API on top of JDBM, and as they have
>>> started to redisign their API to get it easier to use, it would be
>>> interesting to look at what they are doing and see how we can leverage this
>>> API. They are also interested to know what we think about the new API, so
>>> any feedback would be good.
>>>
>>> The best would for you two guys to get in touch, and see how you can
>>> collaborate.
>>>
>>> wdyt ?
>>>
>>>
>
>
>

Re: Using derby BTree new implementation

[Kiran Ayyagari <ay...@gmail.com>]

hi All,

  Francois sent a reply to my mail which am attaching here FYI. I yet to 
send a reply ( my be by tonight IST will
  send him)
 
  Please add any points if you have w.r.t Francois's mail.

thanks,
Kiran Ayyagari

Emmanuel Lecharny wrote:
> Alex Karasulu wrote:
>> Any releases out of this library yet?  Got links?
>>   
> All I have is 
> http://www.nabble.com/simpler-api-to-the-Derby-store-to18137499.html#a18137499 
>
>
> I have been contacted by François Orsini directly, and transfered the 
> mail to Kiran and the dev list.
>
> I assume they want us to be guinea pigs, but with brain :) I like the 
> idea. It has many advantages :
> - we get a direct line with the developpers
> - we may get what we need in the API
> - we have one more possible backend
> - both project get a benefit out of it
>
> Bottom line is that we are not stuck with JDBM, but get a maintained 
> BTree code.
>
> I didn't had time to go any farther right now, and I think Kiran is 
> the guy when it comes to backend those days. I was just the french guy 
> who shared beers with another french fellow in Amsterdam, and 
> discussed about how our both projects can collaborate :) Wanna me to 
> dig the thing inside out ?
>

-- 
Kiran Ayyagari

Re: Using derby BTree new implementation

[Alex Karasulu <ak...@apache.org>]

On Fri, Jul 4, 2008 at 1:35 AM, Emmanuel Lecharny <el...@apache.org>
wrote:

> Alex Karasulu wrote:
>
>> Any releases out of this library yet?  Got links?
>>
>>
> All I have is
> http://www.nabble.com/simpler-api-to-the-Derby-store-to18137499.html#a18137499
>
> I have been contacted by François Orsini directly, and transfered the mail
> to Kiran and the dev list.
>
> I assume they want us to be guinea pigs, but with brain :) I like the idea.
> It has many advantages :
> - we get a direct line with the developpers
> - we may get what we need in the API
> - we have one more possible backend
> - both project get a benefit out of it
>

All excellent points and we should support this effort.  It's a no brainer
for us to implement and test for them.  We can even get stats between a JDBM
and DerbyBTree partition implementation.


>
> Bottom line is that we are not stuck with JDBM, but get a maintained BTree
> code.
>

Aye options are great to have especially under the ASL.


>
> I didn't had time to go any farther right now, and I think Kiran is the guy
> when it comes to backend those days.


Aye he's doing great and has a full grasp of the partition design.  I think
he could easily adapt it if he is interested and feels he can find the time.


> I was just the french guy who shared beers with another french fellow in
> Amsterdam, and discussed about how our both projects can collaborate :)
> Wanna me to dig the thing inside out ?
>

Just perfect let's keep this relationship progressing.

Thanks,
Alex

Re: Using derby BTree new implementation

[Emmanuel Lecharny <el...@apache.org>]

Alex Karasulu wrote:
> Any releases out of this library yet?  Got links?
>   
All I have is 
http://www.nabble.com/simpler-api-to-the-Derby-store-to18137499.html#a18137499

I have been contacted by François Orsini directly, and transfered the 
mail to Kiran and the dev list.

I assume they want us to be guinea pigs, but with brain :) I like the 
idea. It has many advantages :
- we get a direct line with the developpers
- we may get what we need in the API
- we have one more possible backend
- both project get a benefit out of it

Bottom line is that we are not stuck with JDBM, but get a maintained 
BTree code.

I didn't had time to go any farther right now, and I think Kiran is the 
guy when it comes to backend those days. I was just the french guy who 
shared beers with another french fellow in Amsterdam, and discussed 
about how our both projects can collaborate :) Wanna me to dig the thing 
inside out ?

-- 
--
cordialement, regards,
Emmanuel Lécharny
www.iktek.com
directory.apache.org