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CF10 Hidden Gem: New method to obtain ColdFusion instance name via CFML code

Note: This blog post is from 2012. Some content may be outdated--though not necessarily.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.
One of the many hidden gems in CF10 is that there's a new way to programmatically obtain the current instance name. In CF 6-9, we had to call a method in a JRun class. In CF10, they've added a new method in the Admin API.

The quick answer is that there's a getInstanceName method in the runtime.cfc of the Admin API. And yes, any user can execute this code. They do not need to BE an admin. You can use this in production code. For more, see below.

If that's enough to get you going, have at it. For more info, read on.

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How to identify what jvm.config a ColdFusion instance uses (and vice-versa)

Note: This blog post is from 2012. Some content may be outdated--though not necessarily.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 run ColdFusion in its Multiserver mode (multiple instances), you may know that you can configure things so that different instances use different jvm.config files, otherwise by default, all instances share just one. (If you didn't know how to change that, particularly if running CF as Windows Services, I'll offer some references explaining more.)

But have you ever wondered which jvm.config is used by a given instance? Or perhaps found multiple jvm.configs in your [jrun4]\bin directory and wondered which instance each went with? The answer isn't as straightforward as it may seem, when you're running CF as Windows Services. There's no single CF feature that reports this, but I do offer a solution here.

The simple answer is that one can find the information in the registry. The longer answer, including how to find that, as well as how to get that info more easily from the command line if you may prefer, follows.

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How to tell what, if any, hotfixes have been applied to ColdFusion (9 and earlier)

Note: This blog post is from 2012. Some content may be outdated--though not necessarily.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 often see people struggling with confusion over what hotfixes have been applied to CF. They may wonder "which have we applied?", or worse, they may not have applied any and just don't know "how to know" whether they have. I have good news, but it may not be the answer most would suspect.

The common answer offered is that one should use the "system info" page in the CF Admin, and its available "update level" field.

But I will assert that's not the "right answer" after all, or certainly not the "best answer" to really know what hotfixes (plural) have been applied. Know why? If not, I'll explain here, and I'll show what I would say is the "right" answer to "what hotfixes have you applied?"

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Have you noticed the ColdFusion 10 admin allows only one login at a time? It's by design

Note: This blog post is from 2012. 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.
Someone raised a question on one of the Adobe forums saying that they kept getting kicked out of (logged off) the CF Admin in CF10.

Ultimately, he realized it was that when one of his colleagues logged into CF 10 Admin, he got logged out, and vice-versa. Certainly frustrating.

And yes, it's by design in CF10, as part of various security enhancements. The issue is that only one person can be logged in to a given account name in the CF Admin (by default, it's "admin"). There is a solution: create new logins for each person needing to access the Admin. I discuss this and much more below.

Update 1: Since I wrote this entry back in June '12, I did a video for Adobe about a year later where I walk through this in several minutes. You may want to check that out.

Update 2: Great news for those using CF11: CF11 addresses this problem with a new feature in the CF Admin. You may want to read ahead to understand the problem to appreciate the point of this solution. Anyway, see the Security > Administrator page and its option, "Allow Concurrent Login Sessions for Administrator Console". The docs say that it will be disabled by default, allowing multipel logings, unless you choose the "securee profile" option during installation or via the admin (the ability to change that in the Admin is another new feature of CF11), in which case concurrent access by a given account it will be disabled.

Where's is this change in CF10 documented?

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Recordings from ColdFusion Dev Week (cfdevweek) 2012 Now Posted

Note: This blog post is from 2012. 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 finding this page as a result of searching for recordings from later years, I have a new post on the 2017 recordings.]

If you missed any of the sessions from last week's ColdFusion Dev Week, or want to watch them again, you can now see the recordings for all of them. Just click the link for your desired session on this page.

Note that you do still need to use an Adobe account login to view them.

For my two talks, the direct links (still requiring your Adobe account login) are:

Three little niggles

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