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Having issues with the popup calendar feature in CF11 or 2016? There's a fix

If you're using the cfinput type="datefield" feature to popup a calendar and are finding that it's a) not working *at all* in ColdFusion 2016 or b) it showing up but not *correctly* after ColdFusion 11 update 12 or ColdFusion 2016 update 4, there's a fix for both.

The first problem was introduced in the CF2016 installer released in Dec 2016, and any after that, where Adobe has literally removed the library used for the calendaring, but you can add it back, as I discuss below. (If you install or installed CF 2016 from the original installer in Feb 2016, you won't see this problem as it wasn't removed then.)

The second problem was introduced in those two named updates, and was fixed in the very next updates (CF11 update 13 or CF2016 update 5). And of course, this could also happen if you're moving to CF11 or 2016 for the first time, and someone else had "fully updated" those to that update level before you started testing against it.

If you'd like to know more, read on.

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My upcoming presentations for spring/summer 2017: some on CF, some on other topics

I'm going to be speaking several times in the coming weeks and months (on several topics, some on ColdFusion and/or CFML, some on generic topics applying to any server, and one on SQL Server 2016 SP1 specifically). I thought I ought to post that fact here (I have often failed to think to do that here over the years).

I offer below first the events at which I'll be speaking, and then the preso titles and descriptions for any readers interested. (As an update, I was informed on 5/16/17 that I'd been selected to speak at NCDevCon. While it's not in "spring/summer" per the subject above, I've added it to the info below.)

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The 100 most interesting posts on the Adobe ColdFusion blog, the past 3 years

The Adobe ColdFusion team blog often has really some interesting content, but I find that some people are either not aware of the blog or just don't keep up on it, or perhaps they have trouble finding something they saw before or maybe heard was there.

So here I present what I feel are the 100 (technically, 105) most interesting/useful posts made there over the past 3 years (2014-16), offering information about CF and CFML which should be valuable to readers for years to come.

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Why you should think twice about leaving on the "public JRE" option of the Java JDK installer

This is a follow-up to a post I did in late 2014, CF911: 'Help! I've updated the JVM which ColdFusion uses, and now it won't start!'. In that post, I listed about a dozen common problems that befall people who try to update the JVM that CF is using (and it and this post apply as well to Lucee or BlueDragon, or indeed any Java application server).

In this post, I want to elaborate on one more common mistake. Well, mistake may be too strong word. It's about a default option when you run a Java JDK installer (see the other post for more on JDK vs JRE options).

In short, I make the case here for why you should NOT let the JDK installer implement its "public jre" option.

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How to solve common problems with applying ColdFusion updates (in 10 and above)

While ColdFusion 10 and later releases add a new automated update installation mechanism, what do you do if the update doesn't work? The answer may be simple on the surface, but not obvious to most. (And you'll likely be in panic mode.)

Many find after applying a ColdFusion update that either CF won't start at all, or they can't access the ColdFusion Admin, or some part of CF or their app doesn't work. The problem may be simply that there was an error in the update process CF did, and it may be rather easily confirmed and resolved.

In this post, I share several tips and observations to help resolve this, based on my years of providing remote CF troubleshooting support.

The TLDR version: check the ColdFusion update log (not logs in the normal CF "logs" folder. More detail below.) And if there are errors, try stopping CF yourself and then either try the update again, or if it still fails, try to manually apply the update from the command line. If that's enough to get you going, great--especially if you ARE in panic mode! (If the "problem" you need to solve, instead, is that you can't get CF to show you updates because you're behind a firewall preventing outbound internet access, I help with that also, toward the end.)

For most people, though, even those "simple things to do" can prove challenging (and understandably so). And you may find different resources on the web offering perhaps truncated discussions of the topics, which is why I elaborate on things in this post.

And even if you're in a panic, it may take only about 10 minutes to read this whole post. (You can also hire me to help instead, of course. See the link above.) Hope the info to follow is helpful for you.

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The ColdFusion 'metrics log', an oft-missed or misunderstood feature, 'new' since CF10 (Part 1)

I'd like to take a diversion from my recent posts focused on CF2016 and talk about something that applies (and should interest) anyone using CF 10, 11, or 2016.

Have you heard of the new "metrics log" option that was enabled in CF10? If you have not, it's worth knowing about (there's precious little documentation, and I'll point to it, and give you still more info to help you use it). It's a useful, low-impact mechanism to get some high-level metrics logged by CF every 60 seconds (by default), and stored along with other CF logs.

If you did know about it, you've probably had some problems with it. Why does it show "nulls"? What do reported metrics really mean? Why do they not jive with what I'd expect to be the numbers reported?

In this post, and a Part 2 to come, I will introduce the metrics log, pointing out some key things you need to know to have it setup to work at all, and then I'll share my observations of things I've come to understand about the reported metrics.

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Stuck running the ColdFusion 'Migration wizard'? Here's how to get past that

CF Admin migration wizard screenSomeone presented a problem on a discussion list where they found that upon installing CF, they got to the "migration wizard" screen, and though it offered the option to "continue" if it hung up, it did not continue for him.

In this post, I'll share how to get past that prompt, if this happens to you. (And despite that image on the right showing ColdFusion 11, this could conceivably happen in CF10, CF9, and so on, and this same solution applies to all.)

For the anxious folks who want to "skip the waffle" and context/setup, the solution is at the very bottom. :-)

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Finding resources on ColdFusion's mobile development features

Have you wondered where you can find more about ColdFusion's mobile development features? (Did you know that CF11 had added such features?) There are several resources provided by Adobe and others. In this post I highlight those various resources, with a focus on the many (and many kinds of) Adobe-provided ones.

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Monitoring ColdFusion web server connectors, more on Tomcat 'Status Workers'

If you're running CF 10 or above, there was a very interesting post on the Adobe CF blog, from July 19 2015, entitled, Configuring Status Worker in Connectors. (If that URL fails, here's a link via the archive.org site.) The Adobe blog post title may not have caught your attention, but it's about setting up a lightweight and built-in Tomcat monitoring feature for observing the status of the Tomcat web server connector.

You may want to consider enabling it, but I would add some caveats and observations that I share below. Note that it's really quite easy to enable, and DOES NOT require a restart of CF (only of your web server, or technically in IIS, the application pool/s) to take effect.

If you've not yet read their blog entry, go check it out and then come back here for several observations I have to share, some of which I think you'll agree could be very important. (BTW, if you don't follow that Adobe CF blog regularly, you really should. Often great content, and very little "noise".)

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Looking to buy ColdFusion? Get it at a discount from the FR folks, and an additional discount off FR

If you're in the market to buy ColdFusion 11, whether a full license or an upgrade from 10 or 9, you can get a discount off the retail (Adobe) price by buying from www.buy-adobe-software.com, which is a site by the fine folks who make FusionReactor, who are an official Adobe reseller. Why pay full price for CF if you can save, up to 10% currently?

Even better, for a limited time, folks making such a purchase of CF there will get 20% off a purchase of FusionReactor Standard or Enterprise Subscription, if purchased at the same time.

So if you're looking to buy CF11, save money on CF and get a great monitoring solution for CF. I work with it daily, using it on my sites and nearly always recommending it as the best tool for solving CF problems. (It also works with Railo, Lucee, and BlueDragon Server JX, as well as Tomcat, JBoss, Jetty, GlassFish, and indeed any Java application.)

See my FusionReactor category of blog posts for more I've shared on FR over the years.

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