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Oracle Database 12c Release 2 Installer (Swap Size issue)

3474044
3474044 Member Posts: 203
edited Jun 6, 2017 2:21PM in Database Installation

Hello.

I am installing ORACLE DATABASE 12c and have problem in the installer. The problem is on STEP: PREREQUISITE CHECKS:

1) This is a prerequisite condition to test whether sufficient total swap space is available on the system. (more details)

Expected Value

: 15.5144GB (1.626802E7KB)

Actual Value

: 1023.9961MB (1048572.0KB)

MORE DETAILS:

Swap Size - This is a prerequisite condition to test whether sufficient total swap space is available on the system.

Expected Value

: 15.5144GB (1.626802E7KB)

Actual Value

: 1023.9961MB (1048572.0KB)

Details:

-

PRVF-7573 : Sufficient swap size is not available on node "sec-176" [Required = 15.5144GB (1.626802E7KB) ; Found = 1023.9961MB (1048572.0KB)]

- Cause:  The swap size found does not meet the minimum requirement.

- Action:  Increase swap size to at least meet the minimum swap space requirement.

2)  This is a prerequisite condition to test whether the soft limit for maximum stack size is set correctly. (more details)

MORE DETAILS:

Soft Limit: maximum stack size - This is a prerequisite condition to test whether the soft limit for maximum stack size is set correctly. Details:

-

PRVG-0449 : Proper soft limit for maximum stack size was not found on node "sec-176" [Expected >= "10240" ; Found = "8192"].

- Cause:  The Cluster Verification Utility determined that the setting for the indicated soft limit did not meet Oracle''s recommendations for proper operation on the indicated nodes.

- Action:  Modify the resource limits to meet the requirement and take operating system specific measures to ensure that the corrected value takes effect for the current user before retrying this check.

3) This is a prerequisite condition to test whether the OS kernel parameter "shmmax" is properly set. (more details)

Expected Value

: 8329226240

Actual Value

: Current=1987162112; Configured=1987162112

MORE DETAILS:

OS Kernel Parameter: shmmax - This is a prerequisite condition to test whether the OS kernel parameter "shmmax" is properly set.

Expected Value

: 8329226240

Actual Value

: Current=1987162112; Configured=1987162112

Details:

- PRVG-1205 : OS kernel parameter "shmmax" does not have expected current value on node "sec-176" [Expected = "8329226240" ; Current = "1987162112"; Configured = "1987162112"].

- Cause:  A check of the current value for an OS kernel parameter did not find the expected value.

- Action:  Modify the kernel parameter current value to meet the requirement.

- PRVG-1201 : OS kernel parameter "shmmax" does not have expected configured value on node "sec-176" [Expected = "8329226240" ; Current = "1987162112"; Configured = "1987162112"].

- Cause:  A check of the configured value for an OS kernel parameter did not find the expected value.

- Action:  Modify the kernel parameter configured value to meet the requirement.

SCREENSHOTS OF THE PROBLEMS:

p1.PNGp2.PNGp3.PNGp4.PNGp5.PNGp6.PNGp7.PNGp8.PNG

THANKS A LOT FOR ANY HELP!

3474044

Best Answer

  • Andris Perkons-Oracle
    Andris Perkons-Oracle Posts: 1,099 Employee
    edited Jun 6, 2017 11:42AM Accepted Answer

    According to the link you provided, user limits (as the stack size) are set in /etc/security/limits.conf.  'man limits.conf' should tell you how to set the soft and/or hard limits for the stack size for a particular user.

    shmmax is set in /etc/sysctl.conf. Looks to me that you were just copy/pasting the kernel parameters for a 12cR1 install from https://wiki.centos.org/HowTos/Oracle12onCentos7 . So, for 12cR2, you need a value of '8329226240', but you have only set '1987162112'. Maybe adjust the value accordingly?

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