Resolving Issues Where 'PMON failed to acquire latch, see PMON dump' Warnings are Seen in the Alert Log (Doc ID 976714.1)

Last updated on APRIL 12, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Oracle Database - Personal Edition - Version 10.2.0.1 and later
Oracle Database - Standard Edition - Version 10.2.0.1 and later
Information in this document applies to any platform.

Goal

Explain the steps necessary and the diagnostics to collect for a hang situation with messages such as :

PMON failed to acquire latch, see PMON dump

in the alert log.

Note: The information in this article relates to Oracle 10g and above but though the trace and other information in those releases may differ, some of the concepts may be applicable to earlier releases.

 

Solution

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms