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Finding the forums for the new Adobe Presentations service

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
Just want to share this bit of info, in case others find it as hard to locate as I did.

If you start to use the new Adobe Presentations service, an online presentation-building tool, now at labs.adobe.com, you may want to engage in some discussion with other users, so may go looking for some forums. You may struggle as I did.

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ColdFusion Meetup now over 1,800 members!

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
I just noticed that the ColdFusion Meetup now has over 1,800 members. Wow!

If you're not yet on the bandwagon :-), please consider it. Membership is entirely free. Just sign up at the site. It gets you email notification about the meetings, as well as the chance to share feedback on meetings they attend.

Of course, you don't need to join to attend the meetings. The RSS feeds for those are available free on the site, and the meetings are announced on twitter as well, via @cfmeetup. So we technically have even more members, unofficially.

But if you'd like to help us grow to the next 1,800 members, and more important, if you would like another avenue for learning more about CF and related technologies, please consider signing up. There's no obligation, and you're in total control of your membership experience.

About the CF Meetup

The CF Meetup is an official Adobe CF user group. Unlike most groups, we meet weekly (and sometimes twice!) on Thursdays at noon or 6pm US EDT (GMT -4, as of the date of this posting).

We have speakers from all over the world on all kinds of topics related to CF, whether new or classic topics, beginner or advanced; whether new or old presentations, or even new or experienced speakers. If you or anyone you know would like to present, there are always open slots sometime in the coming months.

We've now had 88 presentations since I took the reins from Steven Erat in April 2007. You can find links to all the titles, descriptions, and speaker bios, as well as recordings of the sessions, at recordings.coldfusionmeetup.com (or on my UGTV repository of nearly 400 recorded presentations from over 200 speakers).

CF911 - Easier thread dumps and stack traces in CF, how and why

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
You may have heard the value of taking thread dumps or stack traces when trying to understand and resolve problems with CF. They can be valuable to see what's really running on your server at the time it may seem hung or slow to respond. The problem is that they can be challenging to obtain, so here's how to get them even more easily.

(If you're not familiar with the value of thread dumps or stack traces, read on. The resources I point to get help you to appreciate their usefulness.)

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Several useful web dev topics, "Better Explained"

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
I happened upon a site today with many quick, to the point, highly graphical articles introducing web app development topics that may interest some of my readers. Wanted to pass them along:

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I'm speaking on the CFMeetup this week - Introducing the Adobe ColdFusion Extensions for Eclipse

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
I'm one of the speakers this week on the Online ColdFusion Meetup. I'll be presenting in the noon (EDT) slot this Thursday, on "Introducing the Adobe ColdFusion Extensions for Eclipse". Before you yawn, are you sure you realize what I'm referring to?

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Chrome updated, adds auto-complete, management of "new tab", and much more

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
I'm sure word will spread soon, but for those who've not heard,the Google Chrome browser has (finally) been updated, adding such desperately needed features as auto-complete, management of "new tab", and much more.

For more information, see this blog entry: this blog entry from someone on the Chrome team. It includes links to more details on each change, as well as a brief intro video.

I've been really missing the auto-complete feature, whereby if you fill out text fields on forms that you've entered before, it remembers. (This is not the form-filler of the google toolbar which you can use to fill in an entire page.) You just don't realize how much you use that simple auto-complete until you miss it. (And if you didn't miss it, well, you don't know what you're missing!) Of course, it can be disabled, but it's on by default in the new release.

The update is really fast. Again, see the other blog entry for more.

And I would suggest that if you have any comments like, "yeah, but they forgot xxx", etc., I'd say it would be more worthwhile for you to post those on the google team member's blog than to offer them here. Just sayin'. :-)

Solving CFMAIL failure, "530 5.7.3 Client was not authenticated"

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
I recently had a problem trying to use CFMAIL from my local development laptop pointing to my hosted server (for carehart.org). The mail would never deliver (ending up instead in CF's mail/Undelivr folder). Fortunately, I knew to look in CF's mail.log, and it would show it was failing with "530 5.7.3 Client was not authenticate".

What was so curious was that my local mail client (Outlook) was configured with the exact same servername, username, password, and port, and ran fine from the same laptop on which CF was running. Both were trying to send email via the remote mail server. Why would CFMAIL fail when Outlook would work, both connecting from the same machine to the same SMTP server with the same connection parms?

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My CF Meetup talk this week - Sessions and Clients and Crashes, Oh My!"

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
This coming Thursday (Apr 16, at noon EDT) I will be presenting a new talk at the Online ColdFusion Meetup. The topic, as listed on the site and below, may on the surface seem something that doesn't affect you. Maybe you don't "use" sessions, and you probably would say you don't "use" client variables. Maybe your server doesn't crash, or at least not because of those things...or so you think.

Before you dismiss the idea outright, consider the description below, and if you have an hour to spare, come check it out. You may learn something very surprising. Some of the things I'll discuss are not often talked about, from my observation. Yet I help a lot of people who are hurt by them.

I'll add, also, that out of nearly 80 sessions I've hosted, I've only spoken a few times. The meetup is definitely not "the Charlie show". Thanks to all the many other speakers who have come out the past couple of years.

My Session Title: Sessions and Clients and Crashes, Oh My!

Description: You may be suffering and not even realize it. As a consultant, I focus on helping people troubleshoot CF problems, and one of the most common (and least appreciated) problems people suffer are those related to having too many active sessions in memory or a high rate of creation/update of client variables (whether in registry or database). EVEN IF YOU'D SAY YOU DON'T USE SESSIONS OR CLIENT VARIABLES, this may impact you.

In this session, veteran CFer Charlie Arehart will explain the problem. Using live demonstrations and offering code you can use yourself for free, he'll show how to identify both the extent of and the cause of the problems, and various solutions. The concepts provided will apply to any version of CF (or BD or Railo).

To RSVP (not required) or to learn more about the meeting, including the URL to attend, see the event page.

Update:The recording for this is available here.

TOMORROW- CFUnited Express in Atlanta, all day. Great content, giveaways, and more at discount price

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
If you haven't heard, tomorrow (Wed, April 15) is the all-day CFUnited Express Atlanta event, a sort of mini-preview of the multi-day conference in DC in August. It's a great deal, really, not only for the great day full of CF and Flex/AIR content, but for other valuable benefits.

First, the speaker lineup starts with the ColdFusion Jedi himself, Ray Camden. Beyond that, several past Atlanta CFUG (and CFUnited) speakers will be presenting (on topics not presented at the ACFUG before): Doug Knudsen, John Mason, Andy Powell, and myself (Charlie Arehart). You can see their topic titles and descriptions here: http://express.cfunited.com/go/atlanta/2009/schedule

Second, there will also be giveaways including a free copy of Flex, ColdFusion, a free ticket to CFUnited, and more.

All this for just $149 (use code CFXEB2 to get this early bird price, even at the door). Pre-registration if preferred, of course, to help them plan for the included coffee/donuts, lunch/sodas, and snacks/beverages, but you can get in at the door at that price with that code. Register or get more info at http://express.cfunited.com/go/atlanta/2009.

Third, note that 100% of your Express event payment can be applied towards your attendance at CFUnited 2009. Between the content, the giveaways (at great odds in the smaller venue than the full conference), and the credit toward the full conference, it's really a great deal.

For still other reasons to attend, see the "top 10 reasons" at http://express.cfunited.com/. If you have any last minute questions not answered on the resources above, you can also call the organizer, Liz Frederick, at 410-963-9418.

Finally, for more about the venue, Roundbox Global (across the street from the Kind Plow Arts Center), including parking information, see this blog entry.

Hope to see you there.

PS If you know anyone in the New York City area, there will be an event there also, next week, April 20. More here.

Monitor CF using Nagios - a useful new way

Note: This blog post is from 2009. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.
Nagios is an open source (Linux based) monitoring tool that many organizations use to monitor their IT infrastructure. Here are two resources to help you monitor it with CF, one of which is a new way that may give additional benefit to those already doing Nagios monitoring of CF.

Basic CF Monitoring in Nagios

First let me share that if you've not explored monitoring CF with Nagios at all, here's at least one blog entry from 2005 discussing that. (A more recent one, at http://profec.net/2009/01/12/monitoring-coldfusion-with-nagios/, which I used to list here, is no longer responding, nor could I find it on archive.org.)

Of course, you can easily use Nagios primarily to report whether CF's up or down, but you can also monitor basic statistics such as are provided via CFSTAT (also available on Windows via Perfmon, which also exposes generic stats about all processes), as demonstrated in that blog entry.

But you may have noticed that, if you run the Multiserver (multiple instances) version of CF, those CFSTAT and Windows Perfmon Stats aren't available on that version of CF.

So what to do if you wanted to monitor more about what's going on inside of CF?

FusionReactor Nagios Plug-in

If you're running FusionReactor Enterprise, you can now get that additional information via the free FusionReactor Nagios Plugin. It's a perl app that when implemented will expose certain key statistics in a way that Nagio can process them (and some are things that CFSTAT and the CF Permon stats don't report):

  • Count of current running requests, and total count of all requests run
  • Count of request queued by FusionReactor
  • Average request runtime (since server start), and Recent request runtime (in past 60s, by default)
  • Count of recent slow pages
  • Memory free in bytes and percentage
  • Memory Total and Max
  • Instance and System CPU Use percentage
  • Count of recently completed JDBC requests

Note that this is technically community-contributed feature (from an Intergral employee, David Stockton), not a supported feature.

If you're running or are interested in FusionReactor Enterprise, check it out.

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