DB Hung on 'Wait Enq: PR - Contention'
(Doc ID 2433397.1)
Last updated on AUGUST 16, 2018
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 and later
IBM AIX on POWER Systems (64-bit)
- DB hung on wait enq: PR - contention
- The following messages may be seen in the alert log:
Killing process (ospid 13172950): did not start after 120 seconds
... and the process is still alive after kill!
Oracle threads may have difficulty starting
waited for 'oracle thread bootstrap', seq_num: 72
time_waited: 14.741360 sec (sample interval: 14 sec) <==this means Oracle process did not start up for 14 seconds
The previously stable system may encounter a higher than expected load and begin to show the symptoms.
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