Database - RAC/Scalability (MOSC)

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RAC node crashed due to High CPU usage of ONS process

edited Dec 11, 2012 3:41AM in Database - RAC/Scalability (MOSC) 7 comments
Hi,

One node of our RAC database was showing high CPU utilisation against the ons process. Eventually the instance crashed. DB version is 10.2.0.3.0. Below are the ons log entries. Could some one throw some light into the reasons and provide solution for fixing this issue?

ORA_DEBUG=0 540 /u01/app/oracle/product/10.2.0/crs/bin/onsctl ping

2012-12-11 07:55:51.654: [ RACG][2540285184] [2019][2540285184][ora.xxxx.ons]: clsrcexecut: rc = 99, time = 540.080s

2012-12-11 07:55:51.654: [ RACG][2540285184] [2019][2540285184][ora.xxxx.ons]: end for resource = ora.jsdb1.ons, action = start, status = 1, time = 1080.200s

2012-12-11 07:57:21.646: [ RACG][2540285184] [24058][2540285184][ora.xxxx.ons]: onsctl: shutting down ons daemon ...
timeout: killed the spawned process

Regards

Rajeev

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