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How to solve failing "api" URLs, in CF2016 and 11 (not a problem in CF2018)

If you're trying to run a request against CF 2016 (or perhaps 11), and the URL you're using has a path which starts with /api, you may find that the request fails to run (it may give a blank page). What gives? (It was related to the CF2016 API Manager, not CF's REST services feature.)

And what can you do about it, if you are on CF2016 or 11, and you want to use /api for your URLs? There are are two choices, depending on your needs: in brief, you can either:

  • change your /api folder to a new name (which I realize may not appeal to all to some)
  • or change the CF configuration, to STOP it treating /api specially for the API Manager's use. You would do this by editing two CF config files, urlworkermap.properties and web.xml (but this will break the ability of the API Manager to introspect REST services in CF2016 or CF11, though not CF2018)

TLDR; if you're bold and a risk taker, you can jump to the bottom to see my list of changes to make for that second option. As is often the case, there is risk in making changes in a cavalier fashion. There are various things to consider, and I warn of them below--but the good news is that this is a change that may take only minutes to do, once you've been careful to read about how to do it effectively.

Read on for more, including pros and cons of each choice, what to change and where, why this problem NO LONGER happens from CF2018 onward, and more.

(And if you are not familiar with the CF Enterprise API Manager, which is installed separately from CF, you can read about it here.)

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

Note: This blog post is from 2016. Some content may be outdated--though not necessarily.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'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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Great set of substantial, practical, but brief videos on IIS

Note: This blog post is from 2016. 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 isn't "new" information, though it was new to me this week. I came across this excellent set of youtube videos, 50 substantial yet brief overviews of key IIS topics from IIS/.NET/Windows guru Scott Forsyth.

I offer the list of topic titles (and links to them) below, and have even created a YouTube playlist with them, but note that the links below go to pages that the author had created where he offered a helpful introduction to each video (more than appears in the Youtube description for each).

I had also wanted to offer here this brief overview of them, to set the context and encourage you to view them, so as not to dismiss them if other tech video series haven't impressed you. Whether you're new to IIS 7 or 8, or an old hat user, there really is something for everyone, including wonderful little tips he shares in passing during most videos (which average about 10-20 minutes each).

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

Note: This blog post is from 2015. 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'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. 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, a recycling of the application pool/s--a web site restart is not enough) to take effect.

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CF911: Help, How do I connect sites to a new instance w/ the ColdFusion 10/11 webserver config tool?

Note: This blog post is from 2015. 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 one causes a lot of heartburn for folks: you add a new instance in CF10 or 11 (in editions other than Standard, which do support adding instances), and you find that you can't seem to have the web server configuration tool (wsconfig) connect sites to that new instance(s). You never see the new instance listed in the UI of the wsconfig tool. What gives?

The solution is relatively easy, and the problem could maybe be fixed (or at least warned about) by Adobe (and I just filed a bug report for it). Until that happens, I wanted to share this. For more, read on.

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