I verified the server and didn't have occured errors.
The max of capacity usage was 40%, but in this scenario the application was slow.
I have a great doubts with a BIOS configuraration, because I read post that NUMA parameter is essencial to make performance, but this processor model has four kinds of configuration:
Qlik recommends NUMA OFF, but which one?
It's actually set in the Settings.ini file:
The setting must be set in the Settings.ini file as a [Settings 7] entry:
EnableNumaRoundRobin states since QV11.2 SR2
0 (default): Automated state where QlikView Server at startup detects whether NUMA is enabled or disabled at certain hardware and adapts to it. If NUMA is enabled QlikView Server will ignore NUMA nodes when allocating memory.
1: QlikView Server is acting as if NUMA is enabled from BIOS (without any attempts to detect it)
2: QlikView Server will not ignore NUMA nodes if present (i.e. NUMA enabled)
The Settings.ini file can be found in the following location:
Windows Server 2003
C:\Document and Settings\All Users\Application Data\QlikTech\QlikViewServer
Windows Server 2008 and later
C:\ProgramData\QlikTech\QlikViewServer for Windows 2008 and later !
I do have the following entry "EnableNumaRoundRobin=0" in my Settings.ini located at C:\ProgramData\QlikTech\QlikViewServer.
But I still get the following error: Event ID 0: QvWebServer = Request failed: m_Comm.Receive() received zero bytes.
I am running 11.20 SR 12 on Windows 2008 R2