Re: HTTPD Server Post Requests work ........about half the time

2018-05-08 Thread Andre Garzia via use-livecode 
Monte and Tom,

Yes, that is true. The client will wait for a while. It can still drop
though if for any reason the socket disconnects while waiting for an answer
(IIRC).

A good practice, is to cache and pre-process aggressively so that you need
to minimal work when the request actually arrives. If you know you will
need to do some database queries for each request and the data doesn't
change much often, such as:

"You are building a blog cms. Each post can have any number of comments.
Your user is interested in seeing a list of their recent posts and their
comments since his last visit. One normal way to do it, would be to use a
boolean field in each comment such as "seen" and flip it to true when shown
to the user. To assemble such page, you'd need to query for the posts and
then query for the comments, in a join operation which can be costly. Why
not pre-compute this when someone comment on an article. At that time, you
know the comment is "not seen yet" and you know which post it is related
to. You can add it to a special "inbox queue" so that when the user
arrives, this "inbox queue" requires no join or complex query minimizing
your I/O blocking"

That kind of stuff. Also, remember, the time after you answer the request
but before other request arrives (idle time) is perfect for maintenance
pre-computing.

On Mon, May 7, 2018 at 10:45 PM, Monte Goulding via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Andre I think that should only be an issue if your number of requests *
> time per request > client timeout.
>
> Tom probably the best place to start is some logs of the requests and
> responses on both client and server.
>
> Cheers
>
> Monte
>
> > On 8 May 2018, at 11:28 am, Andre Garzia via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> >
> > Remember that LC is using a single thread and that script execution is
> > blocking, so, if your server is busy doing work to respond to a request,
> > then it will probably not acknowledge an incoming request at the same
> time.
> > Or at least that was true for my RevHTTPd version...
> >
> > On Mon, May 7, 2018 at 12:13 PM, Tom Glod via use-livecode <
> > use-livecode@lists.runrev.com> wrote:
> >
> >> Hi folks, so spent the last 2 days working on getting my client to talk
> to
> >> a simple service I created taking advantage of the httpd library in v9.
> >>
> >> Everything works fine. half the time. literally the request is
> >> identical each time but the result differs.
> >>
> >> the content type is set to text/plain. so the (base64 encoded)
> content
> >> is in the "content" variable.
> >>
> >> but thats only true half the time the other time it comes in empty.
> >>
> >> I also checked my post request with an online "post request"
> >> mechanism...and 100 % of the requests come in correctly. so the problem
> >> must be on my httpd service end.
> >>
> >> Anyone have any clue what could be creating this inconsistency?
> >> ___
> >> use-livecode mailing list
> >> use-livecode@lists.runrev.com
> >> Please visit this url to subscribe, unsubscribe and manage your
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> >>
> >
> >
> >
> > --
> > http://www.andregarzia.com -- All We Do Is Code.
> > http://fon.nu -- minimalist url shortening service.
> > ___
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Re: HTTPD Server Post Requests work ........about half the time

2018-05-07 Thread Tom Glod via use-livecode 
Ok..so the problem was that in my request processing, I was outputting
certain data into the message box...duuuh.which was obviously a
blocking operation and was blocking something in the background processes.
went 100/100 as soon as i took it out.  thank you gentlemen.



On Mon, May 7, 2018 at 10:01 PM, Tom Glod  wrote:

> i will do that thanks MonteI must understand the cause of this before
> i go into production ... otherwise I'll never sleep again :)
>
> On Mon, May 7, 2018 at 9:45 PM, Monte Goulding via use-livecode <
> use-livecode@lists.runrev.com> wrote:
>
>> Andre I think that should only be an issue if your number of requests *
>> time per request > client timeout.
>>
>> Tom probably the best place to start is some logs of the requests and
>> responses on both client and server.
>>
>> Cheers
>>
>> Monte
>>
>> > On 8 May 2018, at 11:28 am, Andre Garzia via use-livecode <
>> use-livecode@lists.runrev.com> wrote:
>> >
>> > Remember that LC is using a single thread and that script execution is
>> > blocking, so, if your server is busy doing work to respond to a request,
>> > then it will probably not acknowledge an incoming request at the same
>> time.
>> > Or at least that was true for my RevHTTPd version...
>> >
>> > On Mon, May 7, 2018 at 12:13 PM, Tom Glod via use-livecode <
>> > use-livecode@lists.runrev.com> wrote:
>> >
>> >> Hi folks, so spent the last 2 days working on getting my client to
>> talk to
>> >> a simple service I created taking advantage of the httpd library in v9.
>> >>
>> >> Everything works fine. half the time. literally the request is
>> >> identical each time but the result differs.
>> >>
>> >> the content type is set to text/plain. so the (base64 encoded)
>> content
>> >> is in the "content" variable.
>> >>
>> >> but thats only true half the time the other time it comes in empty.
>> >>
>> >> I also checked my post request with an online "post request"
>> >> mechanism...and 100 % of the requests come in correctly. so the problem
>> >> must be on my httpd service end.
>> >>
>> >> Anyone have any clue what could be creating this inconsistency?
>> >> ___
>> >> use-livecode mailing list
>> >> use-livecode@lists.runrev.com
>> >> Please visit this url to subscribe, unsubscribe and manage your
>> >> subscription preferences:
>> >> http://lists.runrev.com/mailman/listinfo/use-livecode
>> >>
>> >
>> >
>> >
>> > --
>> > http://www.andregarzia.com -- All We Do Is Code.
>> > http://fon.nu -- minimalist url shortening service.
>> > ___
>> > use-livecode mailing list
>> > use-livecode@lists.runrev.com
>> > Please visit this url to subscribe, unsubscribe and manage your
>> subscription preferences:
>> > http://lists.runrev.com/mailman/listinfo/use-livecode
>>
>>
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>> Please visit this url to subscribe, unsubscribe and manage your
>> subscription preferences:
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>
>
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Re: HTTPD Server Post Requests work ........about half the time

2018-05-07 Thread Tom Glod via use-livecode 
i will do that thanks MonteI must understand the cause of this before i
go into production ... otherwise I'll never sleep again :)

On Mon, May 7, 2018 at 9:45 PM, Monte Goulding via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Andre I think that should only be an issue if your number of requests *
> time per request > client timeout.
>
> Tom probably the best place to start is some logs of the requests and
> responses on both client and server.
>
> Cheers
>
> Monte
>
> > On 8 May 2018, at 11:28 am, Andre Garzia via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> >
> > Remember that LC is using a single thread and that script execution is
> > blocking, so, if your server is busy doing work to respond to a request,
> > then it will probably not acknowledge an incoming request at the same
> time.
> > Or at least that was true for my RevHTTPd version...
> >
> > On Mon, May 7, 2018 at 12:13 PM, Tom Glod via use-livecode <
> > use-livecode@lists.runrev.com> wrote:
> >
> >> Hi folks, so spent the last 2 days working on getting my client to talk
> to
> >> a simple service I created taking advantage of the httpd library in v9.
> >>
> >> Everything works fine. half the time. literally the request is
> >> identical each time but the result differs.
> >>
> >> the content type is set to text/plain. so the (base64 encoded)
> content
> >> is in the "content" variable.
> >>
> >> but thats only true half the time the other time it comes in empty.
> >>
> >> I also checked my post request with an online "post request"
> >> mechanism...and 100 % of the requests come in correctly. so the problem
> >> must be on my httpd service end.
> >>
> >> Anyone have any clue what could be creating this inconsistency?
> >> ___
> >> use-livecode mailing list
> >> use-livecode@lists.runrev.com
> >> Please visit this url to subscribe, unsubscribe and manage your
> >> subscription preferences:
> >> http://lists.runrev.com/mailman/listinfo/use-livecode
> >>
> >
> >
> >
> > --
> > http://www.andregarzia.com -- All We Do Is Code.
> > http://fon.nu -- minimalist url shortening service.
> > ___
> > use-livecode mailing list
> > use-livecode@lists.runrev.com
> > Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> > http://lists.runrev.com/mailman/listinfo/use-livecode
>
>
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Re: HTTPD Server Post Requests work ........about half the time

2018-05-07 Thread Monte Goulding via use-livecode 
Andre I think that should only be an issue if your number of requests * time 
per request > client timeout.

Tom probably the best place to start is some logs of the requests and responses 
on both client and server.

Cheers

Monte

> On 8 May 2018, at 11:28 am, Andre Garzia via use-livecode 
>  wrote:
> 
> Remember that LC is using a single thread and that script execution is
> blocking, so, if your server is busy doing work to respond to a request,
> then it will probably not acknowledge an incoming request at the same time.
> Or at least that was true for my RevHTTPd version...
> 
> On Mon, May 7, 2018 at 12:13 PM, Tom Glod via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> 
>> Hi folks, so spent the last 2 days working on getting my client to talk to
>> a simple service I created taking advantage of the httpd library in v9.
>> 
>> Everything works fine. half the time. literally the request is
>> identical each time but the result differs.
>> 
>> the content type is set to text/plain. so the (base64 encoded) content
>> is in the "content" variable.
>> 
>> but thats only true half the time the other time it comes in empty.
>> 
>> I also checked my post request with an online "post request"
>> mechanism...and 100 % of the requests come in correctly. so the problem
>> must be on my httpd service end.
>> 
>> Anyone have any clue what could be creating this inconsistency?
>> ___
>> use-livecode mailing list
>> use-livecode@lists.runrev.com
>> Please visit this url to subscribe, unsubscribe and manage your
>> subscription preferences:
>> http://lists.runrev.com/mailman/listinfo/use-livecode
>> 
> 
> 
> 
> -- 
> http://www.andregarzia.com -- All We Do Is Code.
> http://fon.nu -- minimalist url shortening service.
> ___
> use-livecode mailing list
> use-livecode@lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your subscription 
> preferences:
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Re: HTTPD Server Post Requests work ........about half the time

2018-05-07 Thread Andre Garzia via use-livecode 
Remember that LC is using a single thread and that script execution is
blocking, so, if your server is busy doing work to respond to a request,
then it will probably not acknowledge an incoming request at the same time.
Or at least that was true for my RevHTTPd version...

On Mon, May 7, 2018 at 12:13 PM, Tom Glod via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Hi folks, so spent the last 2 days working on getting my client to talk to
> a simple service I created taking advantage of the httpd library in v9.
>
> Everything works fine. half the time. literally the request is
> identical each time but the result differs.
>
> the content type is set to text/plain. so the (base64 encoded) content
> is in the "content" variable.
>
> but thats only true half the time the other time it comes in empty.
>
> I also checked my post request with an online "post request"
> mechanism...and 100 % of the requests come in correctly. so the problem
> must be on my httpd service end.
>
> Anyone have any clue what could be creating this inconsistency?
> ___
> use-livecode mailing list
> use-livecode@lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode
>



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HTTPD Server Post Requests work ........about half the time

2018-05-07 Thread Tom Glod via use-livecode 
Hi folks, so spent the last 2 days working on getting my client to talk to
a simple service I created taking advantage of the httpd library in v9.

Everything works fine. half the time. literally the request is
identical each time but the result differs.

the content type is set to text/plain. so the (base64 encoded) content
is in the "content" variable.

but thats only true half the time the other time it comes in empty.

I also checked my post request with an online "post request"
mechanism...and 100 % of the requests come in correctly. so the problem
must be on my httpd service end.

Anyone have any clue what could be creating this inconsistency?
___
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