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Re: response for server every second

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Jerry Stuckle wrote:

> On 6/23/2015 6:06 PM, Thomas 'Pointed Head' Lahn wrote:
>> Erwin Moller wrote:
>>> The data the client receives is *always* out of date, no matter what you
>>> do.
>> Wrong.
> 
> And why not?

You mean “why (is it wrong)?”?  Because there is the possibility that the 
data in the database has not changed when the response is received by the 
client.  (That was an easy one.)

>>> […]
>>> My suggestion by using 1 file is not a bad idea.
>> Yes, it is.  There are also limits as to how many processes can
>> concurrently *read* from a single file.
> 
> And how many is that, […]?

Depends.

> Too many for a web server to handle?

Impossible to say for sure.  But better be safe than sorry.

>>> --> But it assumes that all the clients need the same information. <--
>> It also assumes unlimited resources.
> 
> And why should it require unlimited resources?

Because, among others, the limit above has not been considered.

>>> […]
>>> It wasn't clear in the original post if each client receives the same
>>> data, so I gave it as a (very fast) option to consider.
>>> Very fast compared to requerying the database for each request.
>> Probably slower and more limited than server-side sessions in any case.
> 
> Maybe, maybe not.

In which cases would server-side sessions be slower or only equally fast, 
and more or only equally limited, than either of requerying the database or 
direct file system access?

> It depends on a lot of factors which have not been defined.

I do not think so.
 
>>>> […]  You would not do [caching] in the filesystem, though, at least not
>>>> directly.  Server-side sessions come to mind.
>>> Many roads lead to Rome.
>>> My example used a file, because that is extremely easy to understand.
>> Bad examples are worse than no examples at all.  Especially if the
>> caveats are not pointed out.
> 
> So why do you keep expounding on bad examples?

I am pointing out that it is a bad example, and I am explaining why.  If I 
would not point it out and explain it, and nobody else would point it out 
and explain it, the bad example could be taken as a good one.  You would not 
want that to happen, would you?
 
>> Too long; a sig should not exceed 4 lines à 80 characters.  Also, I would
>> have to remove “Zend Certified PHP Engineer” from it, thereby an
>> important hint that I am also qualified to make such statements as I did
>> elsewhere in my posting.
> 
> More nonsense from the pedantic troll.  This is not your personal
> newsgroup.

As for Usenet signature recommendations, see

<https://en.wikipedia.org/wiki/Signature_block#Signatures_in_Usenet_postings>

and

<http://tools.ietf.org/html/draft-ietf-usefor-useage-01#section-3.1.2.1>.

As for being a ZCE: We talk about that again that if and when you, too, have 
become one of the only about 11'000 people world-wide in the ZCE Directory.  
Based on the candidate IDs, I have calculated a success rate for all ZCE 
exams of about 45 %; so there is a chance that you can pass, too.

-- 
PointedEars
Zend Certified PHP Engineer
Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.

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response for server every second apoorv.kanungo@gmail.com - 2015-06-10 06:59 -0700
  Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-10 10:18 -0400
  Re: response for server every second Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-10 16:41 +0200
    Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-10 11:55 -0400
      Re: response for server every second Allodoxaphobia <knock_yourself_out@example.net> - 2015-06-10 16:50 +0000
        Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-10 13:23 -0400
          Re: response for server every second Richard Yates <richard@yatesguitar.com> - 2015-06-10 10:37 -0700
            Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-10 14:27 -0400
    Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-10 23:38 -0700
    Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-11 00:14 -0700
      Re: response for server every second Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-11 12:09 +0200
        Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-11 04:16 -0700
          Re: response for server every second Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-11 14:37 +0200
            Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-11 06:20 -0700
              Re: response for server every second Matthew Carter <m@ahungry.com> - 2015-06-11 13:45 -0400
            Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-11 23:35 -0700
              Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-12 09:10 -0400
          Re: response for server every second Denis McMahon <denismfmcmahon@gmail.com> - 2015-06-12 03:59 +0000
            [off topic nodejs advertisement] Was Re: response for server every second Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-15 16:08 +0200
              Performance of PHP vs. Node.js (was: [off topic nodejs advertisement]) "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-15 20:42 +0200
                Re: Performance of PHP vs. Node.js Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-16 00:20 +0200
                Re: Performance of PHP vs. Node.js "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-16 00:58 +0200
          Re: response for server every second gordonb.890nt@burditt.org (Gordon Burditt) - 2015-06-13 13:39 -0500
            Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-18 23:16 -0700
              Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-19 08:16 -0400
                Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-21 23:06 -0700
                Re: response for server every second "Peter H. Coffin" <hellsop@ninehells.com> - 2015-06-22 08:03 -0500
                Re: response for server every second Denis McMahon <denismfmcmahon@gmail.com> - 2015-06-23 06:39 +0000
                Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-23 07:23 -0400
    Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-22 18:37 +0200
      Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-22 18:42 +0200
      Re: response for server every second Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-06-23 17:11 +0200
        Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-24 00:06 +0200
          Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-23 19:10 -0400
            Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-24 01:45 +0200
              Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-23 20:21 -0400
                Re: response for server every second apoorv.kanungo@gmail.com - 2015-06-23 23:34 -0700
                Re: response for server every second bill <william@TechServSys.com> - 2015-06-24 06:58 -0400
                Re: response for server every second Arno Welzel <usenet@arnowelzel.de> - 2015-06-25 17:18 +0200
                Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-25 20:31 -0400
                Technical requiremenets for Usenet messages (was: Re: response for server every second) Arno Welzel <usenet@arnowelzel.de> - 2015-06-26 10:43 +0200
                Re: Technical requiremenets for Usenet messages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-26 21:47 +0200
                Re: Technical requiremenets for Usenet messages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-26 22:19 +0200
                Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-25 23:07 -0400
                Re: response for server every second Arno Welzel <usenet@arnowelzel.de> - 2015-06-26 10:21 +0200
                Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-26 06:48 -0400
                Technical requirements for Usenet messages (was Re: response for server every second) Arno Welzel <usenet@arnowelzel.de> - 2015-06-26 13:48 +0200
                Re: Technical requirements for Usenet messages (was Re: response for server every second) Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-26 14:29 -0400
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-06-27 14:49 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-27 10:25 -0400
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-06-28 17:52 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-28 20:08 -0400
                Re: Technical requirements for Usenet messages "Peter H. Coffin" <hellsop@ninehells.com> - 2015-06-27 22:14 -0500
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-06-28 17:54 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-28 20:10 -0400
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-06-30 09:54 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-30 08:45 -0400
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-06-30 16:20 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-30 15:00 -0400
                Re: Technical requirements for Usenet messages Arno Welzel <usenet@arnowelzel.de> - 2015-07-06 13:36 +0200
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-07-06 11:56 -0400
                Re: Technical requirements for Usenet messages Richard Heathfield <rjh@cpax.org.uk> - 2015-07-06 18:54 +0100
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-07-06 16:54 -0400
                Re: Technical requirements for Usenet messages Richard Heathfield <rjh@cpax.org.uk> - 2015-07-07 00:00 +0100
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-07-06 22:08 -0400
                Re: Technical requirements for Usenet messages Richard Heathfield <rjh@cpax.org.uk> - 2015-07-07 07:24 +0100
                Re: Technical requirements for Usenet messages Jerry Stuckle <jstucklex@attglobal.net> - 2015-07-07 10:41 -0400
                Re: Technical requirements for Usenet messages apoorv.kanungo@gmail.com - 2015-07-09 22:52 -0700
                Re: Technical requirements for Usenet messages Denis McMahon <denismfmcmahon@gmail.com> - 2015-07-02 03:07 +0000
                Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-26 21:13 +0200
            Re: response for server every second Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 09:52 +0100
              Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-24 09:21 -0400
                Re: response for server every second Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 18:48 +0100
                Re: response for server every second Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-24 20:55 +0200
                Re: response for server every second Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 20:55 +0100
                Re: response for server every second Jerry Stuckle <jstucklex@attglobal.net> - 2015-06-24 15:21 -0400
                Re: response for server every second Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 20:35 +0100

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