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Set Thread Count for EBS 12.2 Application Tier Servers

Steven Chan
Senior Director

Our September 2017 updates to the Applications DBA (AD) and EBS Technology Stack (TXK) tools for EBS 12.2 contained an enhancement that you might have missed. The AD/TXK Delta 10 updates include a new context variable for the adstrtal and adstpall application tier control scripts:


This new context variable allows you to set the thread count for the adstrtal and adstpall application tier service control scripts. This parameter allows you to start managed servers in batches specified by the variable. One of our largest customers was experiencing some performance-related issues that were partially-addressed by this enhancement.

The default value of this variable is 10, which is the hardcoded value that was previously used in these scripts. Depending on your requirements, you can now change the value. Overriding this value could have a positive impact on performance, for example, in a large server where there are 64 CPUs. The setting should be based on the number of processors on the system. It must always be a value greater than zero, and should not exceed twice the number of processors. 

Remember, you should always upgrade your EBS 12.2 environments to the latest AD and TXK updates whenever they're released. 


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Comments ( 4 )
  • Tony Gill Tuesday, March 27, 2018
    Hi Steven , how is this to be defined in the context_file as we would like to try and test it.
  • Ayaz Khan Tuesday, March 27, 2018
    Need more information on the new parameter.
  • Robert Farrington Tuesday, April 3, 2018

    All the documentation for this new feature is located in Section 3.1 of "Oracle E-Business Suite Applications DBA and Technology Stack Release Notes for R12.AD.C.Delta.10 and R12.TXK.C.Delta.10" (Doc ID 2295390.1).

    This section has just been revised and expanded to provide the maximum available coverage of the topic.


  • Tony Gill Monday, April 23, 2018
    Hi Robert

    The note does not say how to define the new variable (s_srvctl_thread_count) in the context file , which section should it be placed in

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