Table of Contents

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  1. Preface
  2. Part 1: Installation Getting Started
  3. Part 2: Before You Install the Services
  4. Part 3: Run the Services Installer
  5. Part 4: After You Install the Services
  6. Part 5: Informatica Client Installation
  7. Part 6: Uninstallation
  8. Appendix A: Starting and Stopping Informatica Services
  9. Appendix B: Connecting to Databases from UNIX or Linux
  10. Appendix C: Connecting to Databases from Windows
  11. Appendix D: Updating the DynamicSections Parameter of a DB2 Database

Installation for PowerCenter and Data Quality

Installation for PowerCenter and Data Quality

Verify the File Descriptor Limit

Verify the File Descriptor Limit

Verify that the operating system meets the file descriptor requirement.
Informatica service processes can use a large number of files. To prevent errors that result from the large number of files and processes, you can change system settings with the limit command if you use a C shell, or the ulimit command if you use a Bash shell.

List Operating System Settings

To get a list of the operating system settings, including the file descriptor limit, run the following command:

    With C shell, run
    limit

    With Bash shell, run
    ulimit -a

Set the File Descriptor Limit

Informatica service processes can use a large number of files. Set the file descriptor limit per process to 16,000 or higher. The recommended limit is 32,000 file descriptors per process.
To change system settings, run the limit or ulimit command with the pertinent flag and value. For example, to set the file descriptor limit, run the following command:

    With C shell, run
    limit -h filesize <value>

    With Bash shell, run
    ulimit -n <value>

Set Max User Processes

Informatica services use a large number of user processes. Use the ulimit -u command to adjust the max user processes setting to a level that is high enough to account for all the processes required by the Blaze engine.
To set the max user processes, run the following command: Run the following command to set the max user processes setting:

    With C shell, run
    limit -u processes <value>

    With Bash shell, run
    ulimit -u <value>