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HOW TO: Optimally set the Maximum Heap Size for a domain
Solution

The following table lists the minimum requirement for the Maximum Heap Size settings, based on the number of users and services in the domain:


Number of Domain Users

Maximum Heap Size (1-5 Services)

Maximum Heap Size (6-10 Services)

1,000 or less

512 MB (default)

1024 MB

5,000

2048 MB

3072 MB

10,000

3072 MB

5120 MB

20,000

5120 MB

6144 MB

30,000

5120 MB

6144 MB


The domain has more than 1,000 users, update the Maximum Heap Size based on the number of users in the domain.

On Linux, the following can be done:

  1. Go to the following directory: <INFA_HOME>/tomcat/bin.
  2. Edit infaservice.sh file.
  3. Search for the following text "Xmx"
  4. Set the value for -Xmx to the Maximum Heap Size required for the number of Informatica domain users
  5. Save & close the file

 Or, set the Maximum Heap Size using the command line to say 2048m. Following are commands on UNIX:

setenv INFA_JAVA_OPTS -Xmx2048m

or export INFA_JAVA_OPTS=-Xmx2048m

On Windows, registries need to be updated and updates to environment profile or in the infaservice.bat file may not be entertained.

Refer to the KB article: https://kb.informatica.com/howto/6/Pages/17/301535.aspx

More Information

The heap size mentioned in the table refers to the amount of memory required by ISP when there are as many users and services (excluding Administrator) in the domain.


This includes memory required by all core services of ISP. The administrator can be ignored because ISP cache contains little information on the Administrator Console service.

Reference

Various Informatica Upgrade Guides

Applies To
Product: PowerCenter; Data Quality
Problem Type: Configuration
User Type: Administrator
Project Phase: Configure
Product Version: Informatica 10.x
Database:
Operating System:
Other Software:
Attachments
Last Modified Date:8/5/2020 5:50 AMID:141448
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