Unbalanced Emulator Sessions Observed in a High Load Array with Secure Global Desktop Enhancement Module Installed (Doc ID 1340061.1)

Last updated on OCTOBER 19, 2012

Applies to:

Oracle Secure Global Desktop - Version 4.5 to 4.7 [Release 4.0]
Information in this document applies to any platform.

Symptoms

When Secure Global Desktop (SGD) Load Balancing is configured so that Emulator sessions are balanced evenly across all array members, the SGD Administrator may notice that after a period of uptime, emulator sessions are no longer equally balanced.

This behavior is mainly seen in large arrays (i.e. 5 or more servers in the array) and with the application hosts installed with the SGD Enhancement Module (SGDEM).

In this scenario, the emulator session Load Balancing Method is set to:

     Fewest Application Sessions

Anecdotally, It might also be observed that the .properties files found within <SGDDIR>/var/serverconfig/global have a date stamp of 1969.

WHERE <SGDDIR> is a placeholder for the SGD Installation Directory, by default /opt/tarantella

Note: This behavior is related to the Emulator Session Load Balancing feature of Secure Global Desktop. Information regarding this feature may be found in the official product documentation, at: http://download.oracle.com/docs/cd/E19351-01/821-1926/z40000231333054.html#z40000231337983

 

Cause

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