Disk Operations / RMAN / Datapump to NFS Slow After Applying 19.24 RU
(Doc ID 3062229.1)
Last updated on DECEMBER 05, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 19.24.0.0.0 to 19.25.0.0.0 [Release 19]Information in this document applies to any platform.
Symptoms
Performance impact seen in operations (RMAN, Datapump) to NFS after applying 19.24 RU.
Datapump will show increased waits on the following SQL:
BEGIN
SYS.KUPW$WORKER.MAIN('SYS_EXPORT_TABLE_01', 'EXAMPLE', 0, 0);
END;
Event waited on Times Max. Wait Total Waited
------------------------------ Waited ---------- ------------
Disk file operations I/O 22 0.03 0.06
db file sequential read 7 0.00 0.00
Datapump dump file I/O 202 10.02 561.06
Performance discrepancy only appears with 19.24 RU and is resolved if reverted to 19.23.
Performance discrepancy only appears with NFS and is not present with operation to local drive.
Changes
Applying the 19.24 RU.
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |