I need advice on how to debug a cluster

Posted by alcor on Programmers See other posts from Programmers or by alcor
Published on 2012-08-23T14:30:15Z Indexed on 2012/09/03 15:51 UTC
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Filed under:

debugging

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analysis

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visual-c++

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cluster

I'm the only developer of a complex critical software system, written in Visual C++ 2005. It's deployed on a classical Microsoft cluster scenario (active/passive), that has Windows Server 2003 R2.

If a server A goes down, the other one (B) starts and take the ownership of its duties.

You have to know that:

both servers have the same Microsoft patches/fixes, same hardware, same everything.
both servers use the same memory storage (a RAID-6 through fiber channel).
this software has a main module who launch the peripheral modules. if a peripheral module crashes, the main module restarts it.

When I switch the application in one of the two servers (let's say the B server) two of the peripheral modules of the main applications just started to crash apparently without reason about 2 seconds after the start of the peripheral module.

What could I do to analyze/inspect/resolve this weird situation?

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