V$sql_monitor Has No Data
Last updated on FEBRUARY 04, 2018
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.1.0.2 [Release 11.2 to 12.1]Information in this document applies to any platform.
Symptoms
- On 11.2.0.4 , not able to see real time SQL monitoring using v$sql_monitor:
- The environement was switched to standby on another server and then switched back again to this server
- On standby SQL monitor has works fine, but on primary which had the storage firmware upgraded, the v$sql_monitor is empty and monitoring SQL real time is not possible
- Database restart did not help.
Changes
Customer upgraded storage firmware and attached more disk tray.
Cause
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