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Using Logical Hostnames in E-Business Suite Release 12.x

Terri Noyes
Product Management Director

We've recently received many inquiries on how to configure Oracle E-Business Suite application and database tiers to use logical hostnames. To help with this, we have just published a new Note:

Logical hostname screenshot

This new Note describes how to configure a machine to use a logical hostname, and the subsequent use of Rapid Install or Rapid Clone to configure the file system.  There is also a discussion of the different scenarios in which logical hostnames can be employed.

Many of the examples shown depict E-Business Suite Release 12.2 on Linux 64-bit, but the fundamental concepts also apply to Releases 12.0 and 12.1, and to other operating systems.

Employing logical hostnames offers several distinct advantages:

  • Hides from the end users the physical servers that host the applications software
  • Reduces configuration changes needed in network reconfiguration, data center migration, and disaster recovery
  • Facilitates the creation of an identical copy (clone) if needed
  • Avoids the need to clone a system just to change the hostname

The Note covers three different scenarios:

  1. Using logical host names in creation of an identical clone - How using logical hostnames can aid in the creation of a system that is identical to the original system in every way except for the different physical hostname and network address.  
  2. Using logical host names to avoid rewiring after changes in network configuration - How logical hostnames can minimize the impact of necessary host name and IP address changes.  
  3. Using logical host names to faciliate enabling Oracle WebLogic Administration Server high availability - How either a standby virtual machine or standby physical server can be used to achieve high availability of the Admin Server if the Admin Server and the standby system share the same logical hostname. 

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Comments ( 5 )
  • Rakesh Tripathi Monday, August 3, 2015

    Hello:

    Good note. The note is silent on specifying primary and secondary nodes for the concurrent managers. Are logical hostnames are supported for these or otherwise?

    Request clarification please.

    Regards,

    Rakesh


  • Noby Joseph Thursday, August 6, 2015

    Hello Rakesh,

    I did not understand your question completely. You can make any application tier node as primary and secondary for concurrent managers. All node names have to be unique. For example cp1.example.com can be your primary and cp2.example.com can be your secondary. The hostnames have to be unique in fnd_nodes.

    Noby


  • Rakesh Tripathi Thursday, August 6, 2015

    Hi Noby,

    My query was about use of virtual/logical hostnames with Concurrent Processing. Section 2 of MOS note# 603883.1 specifies that only physical hostnames can be used with Concurrent Managers. Does the above announcement supercede what is stated in 603883.1?

    Thanks,

    Rakesh


  • Noby Joseph Wednesday, August 12, 2015

    You can use logical names with concurrent processing also. The configuration we support now use only logical names and not a mix of physical and logical names. For example the application need to be installed with the logical name and the uname, hostname call must return the logical name. We are also planning to support a configuration in the future where uname/hostname calls returns the physical name and the application is installed with the logical name. Hope this answers your question.


  • mbacovci@ch2m.com Monday, September 21, 2015

    Reading through the doc it says this should work for 12.0 and 12.1.

    But then it says the patches required are:

    R12.AD.C.Delta6 and R12.TXK.C.Delta.6 which will never exist for 12.0 or 12.1 since the C versions are for 12.2.

    So what are the patch requirements to make it work with 12.1?

    Thanks,

    Mike Bacovcin


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