An exception occurred in component DBReader of type DBReader "Queue limit reached."

Comments: 1 - Last Comment by bfoss on Oct 12, 2017   Comment Filter:
Posted on Jan 27, 2017

Has anyone seen this message before written to an EdgeFrontier systems error log?

This occurred recently in more than one system, at different times. When it does happen, it generally spits out thousands of these errors. I've looked through various logs and can't find a direct reason as to why this happens. This is happening after months and hundreds of thousands of successful messages have been read/received/written through these systems, so please understand that it is not a 'in-development' system that I am referring to. These errors are occurring long after a system has been stable for months with zero errors.

I am hoping one of you have seen this before and know what it was that 'caused' the error to occur.

'Reloading' the system causes the errors to stop, if that helps.


Thanks in advance,

Brien Foss


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RE: An exception occurred in component DBReader of type DBReader "Queue limit reached."
Posted on Oct 12, 2017 in response to: bfoss

Still observing this error every couple of months.

Happening more frequently to a particular system which uses DB Writers as its main function/purpose.


Here is the most recent error that happened before the thousands of 'queue limit reached' errors started showing up. I think of this error as the possible 'trigger' for the complete meltdown. Re-loading the system with issues resolves the problem every time.

Possible trigger:

An exception occurred in component SQLUnitCustomWriter of type DBWriter -> Source array was not long enough. Check srcIndex and length, and the array s lower bounds."


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