No Entry In V$DIAG_ALERT_EXT With COMPONENT_ID='tnslsnr' In 12.2

(Doc ID 2362105.1)

Last updated on FEBRUARY 19, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Information in this document applies to any platform.
V$DIAG_ALERT_EXT show tnslsnr component until 12.1.0.2

Symptoms

For pre-12.2 versions there are records with the component "tnslsnr" in the V$DIAG_ALERT_EXT, but after migration to 12.2.0.1 there is no record in V$DIAG_ALERT_EXT with COMPONENT_ID='tnslsnr'.

Changes

Migrate to 12.2.0.1.

Cause

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