Thursday, 27 February 2014

Controller Crashed while running test

Problem detailController got crashed while running Citrix test today after 52 mins of scenario elapsed time.
Please find below details of the machine that we used.
Operation System: WIN2K8 32bit
ICA Version: ICA 11.0.150.5357
Patches installed on the machine:
LR_03014 for HP LoadRunner 11.00 QFE
HP LoadRunner 11.00 Patch 1
HP LoadRunner 11.00 Patch 2
HP LoadRunner 11.00 Patch 3

Problem Solution: What you explained make us think that the issue you are having on that Load Generator could be related the security settings from Windows, this because the error is just happening on one of the LG’s.

About the User Account Control: UAC is a technology and security infrastructure introduced with Microsoft's Windows Vista and Windows Server 2008 operating systems, with a more relaxed[1] version also present in Windows 7 and Windows Server 2008 R2 . It aims to improve the security of Microsoft Windows by limiting application software to standard user privileges until an administrator authorizes an increase or elevation. In this way, only applications trusted by the user may receive administrative privileges, and malware should be kept from compromising the operating system. In other words, a user account may have administrator privileges assigned to it, but applications that the user runs do not inherit those privileges unless they are approved beforehand or the user explicitly authorizes it.

Data Execution Prevention: DEP is a security feature included in modern operating systems. It is known to be available in Linux, Mac OS X, and Microsoft Windows operating systems and is intended to prevent an application or service from executing code from a non-executable memory region. This helps prevent certain exploits that store code via a buffer overflow, for example. [1] DEP runs in two modes: hardware-enforced DEP for CPUs that can mark memory pages as non-executable and software-enforced DEP with a limited prevention for CPUs that do not have hardware support. Software-enforced DEP does not protect from execution of code in data pages, but instead from another type of attack (SEH overwrite).

What happen if you run a short test using that Load Generator?

On the Load Generator that is failing please try the following:

1. Press "start" -> "run"
2. Type "regedit"
3. Press "Ok"
4. Navigate to "HKEY_LOCAL_MACHINE/SOFTWARE/Mercury Interactive/LoadRunner/Vugen/Thumbnails"
4. Double-click on "GenerateThumbs," and set the value to 0.

This because on the snapshot you sent we are seeing that the thumprocess.exe is freeze. Please do it and try to run a test on that machine and let us know how it goes.

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