Deploying applications that run continuously for months

I have a deployed application that is supposed to run autonomously for months. Within this application I have one timer object that calls a few functions, crunches data and updates mat files, reads some other mat files and updates the plots on the screen.

I have a problem where the application runs fine for a couple of days and then errors out with this message.

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'COULD NOT OPEN FILE: C:\Program Files\MATLAB\MATLAB Compiler Runtime\v716\toolbox\matlab\iofun\@timer\get.m

Caught "std::exception" Exception message is:
Message Catalog MCR:mclmcr was not loaded from the file. Please check file location, format or contents

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• Have any of you experienced a similar problem with deployed applications with timers?
• Have you designed deployed applications that stay alive for weeks/months without need for restart. ( Deployed, not in MATLAB environment). If so, what are you experiences regarding the stability of MATLAB timer and MATLAB applications with the Windows OS.
• Item two

[Sean de Wolski]

I'd recommend contacting technical support for this.

[Shaju John]

Sean: I already did. I was trying to find out users who might have developed long-term autonomous applications in MATLAB and who might be able comment about my issues.

Answer 1

[Dirk Engel]

Experienced developer here, with some deployed apps running as back-end services uninterruptedly for years on Windows.

We don't use timers, but I remember a "file not found" problem that sometimes occured out of the blue. This was related to the default MATLAB Runtime chache directory (located under %temp%) being auto-deleted by a system utility every now and then, removing the very m-files that your application (your timer callback function) wants to execute. We changed MCR_CACHE_ROOT to a non-temp directory and have no problems since.