Comment Column Of View Statement Is Waiting For 1 Second in RAC
(Doc ID 1962018.1)
Last updated on JANUARY 30, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.4 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
On a RAC environment only, with no load on the database, observed that the "COMMENT ON COLUMN ..." command, which sets a comment on a column of a view, is taking much longer than in previous versions.
TKPROF for the sql tracing shows that there is a 1 second wait "Wait for Table Lock" for every comment statement.
Changes
Upgraded to 11.2.0.4.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |