West Wind Message Board Messages

Re: WC Documentation

Harvey Mushman — Sun, 21 Mar 2010 01:01:41 GMT

Re: WC Documentation

Web Connection 5.0

Re: WC Documentation

03/20/2010
06:01:41 PM
2W512N5RF

From:

Harvey Mushman

To:

Rick Strahl

Attachments:

None

Will you also be planning some time for developer show and tell?

What are the arrangements for your WC sessions/training at SWFox 2010?

A vendor session, or a pre- or post- conference session?

There will be a Web Connection training workshop prior to the main conference (assuming I can get space at the hotel)...

I'll post details here as soon as I get them.

+++ Rick ---

I did not know you were going to be there. But, I'm glad to hear it.

Details please...

As you are using your, btw great tool, West Wind HTML Help Builder, could you please create a word or PDF format of the wc documentation so we can carry it in a Kindle?

The documentation is available in Word format - take a look in the help file for the link (although the Word docs tend to be slightly out of date). You can create a PDF from that with the Office PDF tools.

PD. Are you doing a new work shop abot WC at SouthWest Fox this year?

Yes I'm planning to do training this year at Southwest Fox.

+++ Rick ---

Getting wwSMTP, upgrading, purchasing, etc

Julian Dominguez — Sat, 20 Mar 2010 21:19:08 GMT

Getting wwSMTP, upgrading, purchasing, etc

West Wind Internet Protocols

Getting wwSMTP, upgrading, purchasing, etc

03/20/2010
02:19:08 PM
2W40XE2A8

From:

Julian Dominguez

To:

All

Attachments:

None

UPDATE to my question.....

Is available individually?

As part of another package?

I have wwipstuff that i have had since I bought Web Connection, but cannot remember if I got it as part of it or separate :(

What I want is to find out if and upgrade is available ....... which is the simplest upgrade??

Hi all!

How do I get the wwSMTP class??

Thanks

Julian

Jquery problem

Tore Bleken — Sat, 20 Mar 2010 19:08:16 GMT

Jquery problem

Web Connection 5.0

Jquery problem

03/20/2010
12:08:16 PM
2W50PY46Q

From:

Tore Bleken

To:

All

Attachments:

None

I have a strange problem with some jquery code. The code includes some debugging code, to illustrate the problem. I have some tables with three rows, row one is text, row two is an image, and the third row is more text. The purpose of this code is to read the "alt" value from the second row in a table, when the user clicks the text in the first row. The code works when I hard code the colx variable, but when I calculate the value in the code, it does not with. To debug the code, I added code to change the backcolor for row 3 when the text in row 1 is clicked.

With the code below, when I click row one, the whole third row gets red backcolor. But when I hard code colx to for instance 4, the code works as expected, meaning that only column four in the third row gets red backcolor. Clearly the calculated colx and the hard coded colx behave differently, but why? And how do I fix this? Any tip is appreciated, I have already spent a whole day with something I expected to be a trivial thing.

A second problem is that with IE the backcolor does not change, but that's not important since I only change the backcolor in order to test my code. But it's strange anyway.

<script type="text/javascript">
  $(function(){
  $('table th')
  .click(function(event){
  var colx = $(this).parent().children().index($(this));
  var table1 = $(this).parent().parent().parent();
    $('tr:nth-child(3) td:nth-child(colx)',table1).css("background-color","Red");
  var verdi = $('tr:nth-child(2) td:nth-child(2)',table1).css("background-color","yellow").attr('img') + ' ' +colx;
  say(verdi);
  })
  function say(text) {
  $('#console').html('<div>'+text+'</div>');
  }
</script>

The problem is with the variable colx, which calculates which column's header I click.

Web Connection, IIS, Kernel Caching, and Low Latency

Brett Baggott — Sat, 20 Mar 2010 15:56:07 GMT

Web Connection, IIS, Kernel Caching, and Low Latency

Web Connection

Web Connection, IIS, Kernel Caching, and Low Latency

03/20/2010
08:56:07 AM
2W501WQPO

From:

Brett Baggott

To:

All

Attachments:

None

I'm going to lay out a hypothetical here and _please_ understand it's hypothetical only because your first instinct is probably going to be to say, "but why would you do that", I wouldn't.

Here goes.

Let's say you wanted to build MarchMadnessRealtimePlayerStats dot Com and so you build a pretty UI (I'm talking web page here) to send to the client and then you fired an Ajax call _per second_ back to the server where all the stats were stored that would update the user's UI with all the second by second stats.

Now, if the backend to this was Web Connection, and you anticipated having thousand of viewers, you'd want to be as efficient as possible. For example, you'd service your Ajax call via a "static cookieless domain" to help improve latency. After all, if your responses are taking 1 sec+, polling per second is kinda pointless.

Now let's say that 99% of your users were viewing their favorite player 99% of the time. Now you start to think, maybe cache can help me out here. After all, at any given millisecond, with thousands of viewers, and with so may uber popular players, you're _very_ likely to have _identical_ request/response streams.

So, all that to say, in the given hypothetical, where you might hope to one day have hundreds of thousands of users but yet still keep the back-end we all love, what can be done to:

a. improve latency (IIS, don't need any networking pointers)
b. improve possibility of kernel caching kicking in
c. improve things I haven't thought of

In the 'nix world, there are several flavors devoted specifically to this issue. We have IIS (well, at least I'm not interested in running WWWC on Apache unless I have to).

I've seen threads here before on performance, and I got a lot of great info out of them. But I've never seen a thread on _absolute best_ latency performance (course I might have missed it). Again, I'm not talking general all-purpose "defrag your hard drive" type things. I'm talking what is the absolute lowest latency environment to get a data-based response from WC over the wire and is it possible to structure that response such that kernel caching will kick in.

Thoughts?

EDIT: I should add that I've been playing around with this in a test environment over local LAN, over the net to our own datacenter, and over the net to EC2 and without even any extreme tweaking I can get to 100-150ms ranges for non-cached hits, which makes the app a doable situation.

However, same HTML test page with URL set to hit my LAMP Nginx server with same data hit just server via PHP/mySQL hums along at 30-50ms.

Also, I've been looking into kernel caching and it doesn't support querystrings. Trying to keep things simple, rather than using a POST for my tests, I was using a GET like so:

example.com/update.ww?player=1001&time=12345678 (i.e. LTRIM(STR(SECONDS()*1000)))

however, given the querystring issue, couldn't you do this:

example.com/player1001/time12345678/update.ww

and get away with having kernel caching fire?