* Request for DSA Tutorials & Advice
@ 2018-01-16 15:43 Shark8
2018-01-16 17:07 ` Jeffrey R. Carter
[not found] ` <85b110b6-4ac7-47f4-bd23-53d0493d4b31@googlegroups.com>
0 siblings, 2 replies; 7+ messages in thread
From: Shark8 @ 2018-01-16 15:43 UTC (permalink / raw)
I have a small project which I would like to use the DSA for -- the general functionality is simple: a database distributed over various servers. (The project is an implementation of MUMPS; which means the 'heart' of the project is a database implemented as a B-Tree distributed over multiple servers.)
I know that the DSA can do this, and I would like to know how, but I have no experience with the DSA. Also, and this I'm unsure of, can a DSA application add/remove [storage] nodes dynamically? (If so, "hot-swapably"?) -- Such a facility would be a great boon to horizontal scaling.
If successful, this project will be quite useful to the MUMPS community (as a full-Ada implementation would be quite portable) -- but it could also help the Ada community because MUMPS is _THE_ backend language for [electronic] medical records (certainly within the VA) and an Ada implementation could provide for some good Ada interop into the system. (Thus getting Ada's toe in the door for non-embedded/non-device medical applications.)
-----
I'll post a gethub link to the project once I get a bit more info and a bit more fleshed out architecturally.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Request for DSA Tutorials & Advice
2018-01-16 15:43 Request for DSA Tutorials & Advice Shark8
@ 2018-01-16 17:07 ` Jeffrey R. Carter
2018-01-16 17:16 ` Shark8
[not found] ` <85b110b6-4ac7-47f4-bd23-53d0493d4b31@googlegroups.com>
1 sibling, 1 reply; 7+ messages in thread
From: Jeffrey R. Carter @ 2018-01-16 17:07 UTC (permalink / raw)
On 01/16/2018 04:43 PM, Shark8 wrote:
>
> I know that the DSA can do this, and I would like to know how, but I have no experience with the DSA. Also, and this I'm unsure of, can a DSA application add/remove [storage] nodes dynamically? (If so, "hot-swapably"?) -- Such a facility would be a great boon to horizontal scaling.
The one DSA system I worked on did this.
--
Jeff Carter
"If I could find a sheriff who so offends the citizens of Rock
Ridge that his very appearance would drive them out of town ...
but where would I find such a man? Why am I asking you?"
Blazing Saddles
37
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Request for DSA Tutorials & Advice
2018-01-16 17:07 ` Jeffrey R. Carter
@ 2018-01-16 17:16 ` Shark8
2018-01-16 19:14 ` Jeffrey R. Carter
0 siblings, 1 reply; 7+ messages in thread
From: Shark8 @ 2018-01-16 17:16 UTC (permalink / raw)
On Tuesday, January 16, 2018 at 10:09:14 AM UTC-7, Jeffrey R. Carter wrote:
> On 01/16/2018 04:43 PM, Shark8 wrote:
> >
> > I know that the DSA can do this, and I would like to know how, but I have no experience with the DSA. Also, and this I'm unsure of, can a DSA application add/remove [storage] nodes dynamically? (If so, "hot-swapably"?) -- Such a facility would be a great boon to horizontal scaling.
>
> The one DSA system I worked on did this.
Awesome, now I know it's possible.
You wouldn't happen to have the source available? Or any tips/hints?
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Request for DSA Tutorials & Advice
2018-01-16 17:16 ` Shark8
@ 2018-01-16 19:14 ` Jeffrey R. Carter
2018-01-16 20:15 ` Shark8
0 siblings, 1 reply; 7+ messages in thread
From: Jeffrey R. Carter @ 2018-01-16 19:14 UTC (permalink / raw)
On 01/16/2018 06:16 PM, Shark8 wrote:
>
> You wouldn't happen to have the source available? Or any tips/hints?
I don't have the source. It's proprietary, so if I did, I couldn't share it with
you anyway. David Botton did most of the implementation of the DSA part. I wrote
code that communicated through it. We had a main program and 2 kinds of
partitions, with multiple instances of the partitions. When a partition instance
became active, it would register with the main program. The main program kept
track of the active partitions and tried to balance the work across them.
Sorry I can't be more helpful. Maybe Botton could be.
--
Jeff Carter
"If I could find a sheriff who so offends the citizens of Rock
Ridge that his very appearance would drive them out of town ...
but where would I find such a man? Why am I asking you?"
Blazing Saddles
37
^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <85b110b6-4ac7-47f4-bd23-53d0493d4b31@googlegroups.com>]
* Re: Request for DSA Tutorials & Advice
[not found] ` <85b110b6-4ac7-47f4-bd23-53d0493d4b31@googlegroups.com>
@ 2018-01-16 21:02 ` Shark8
0 siblings, 0 replies; 7+ messages in thread
From: Shark8 @ 2018-01-16 21:02 UTC (permalink / raw)
On Tuesday, January 16, 2018 at 1:32:42 PM UTC-7, polymorph self wrote:
> On Tuesday, January 16, 2018 at 10:43:22 AM UTC-5, Shark8 wrote:
> > I have a small project which I would like to use the DSA for -- the general functionality is simple: a database distributed over various servers. (The project is an implementation of MUMPS; which means the 'heart' of the project is a database implemented as a B-Tree distributed over multiple servers.)
> >
> > I know that the DSA can do this, and I would like to know how, but I have no experience with the DSA. Also, and this I'm unsure of, can a DSA application add/remove [storage] nodes dynamically? (If so, "hot-swapably"?) -- Such a facility would be a great boon to horizontal scaling.
> >
> > If successful, this project will be quite useful to the MUMPS community (as a full-Ada implementation would be quite portable) -- but it could also help the Ada community because MUMPS is _THE_ backend language for [electronic] medical records (certainly within the VA) and an Ada implementation could provide for some good Ada interop into the system. (Thus getting Ada's toe in the door for non-embedded/non-device medical applications.)
> >
> > -----
> > I'll post a gethub link to the project once I get a bit more info and a bit more fleshed out architecturally.
>
> whats dsa?
Distributed Systems Annex -- See http://www.adaic.org/resources/add_content/standards/12rm/html/RM-E.html
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2018-01-16 21:02 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-01-16 15:43 Request for DSA Tutorials & Advice Shark8
2018-01-16 17:07 ` Jeffrey R. Carter
2018-01-16 17:16 ` Shark8
2018-01-16 19:14 ` Jeffrey R. Carter
2018-01-16 20:15 ` Shark8
2018-01-16 20:28 ` Jeffrey R. Carter
[not found] ` <85b110b6-4ac7-47f4-bd23-53d0493d4b31@googlegroups.com>
2018-01-16 21:02 ` Shark8
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox