DBWR Trace and RBAL Dump in RDBMS Alert.log that Uses ASM
(Doc ID 863673.1)
Last updated on MAY 20, 2021
Applies to:
Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.1.0.7 [Release 10.2 to 11.1]Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
This problem can occur on any platform.
Symptoms
In RDBMS alert.log (that uses ASM for storage ) following entries for errors on the DBWR processes report:
Fri Jun 19 03:32:03 2009
Errors in file /<DIR>/admin/xxxxx/bdump/xxxxx_dbw0_23728.trc:
Fri Jun 19 04:17:00 2009
Errors in file /<DIR>/admin/xxxxx/bdump/xxxxx_dbw0_23728.trc:
Fri Jun 19 04:47:00 2009
Errors in file /<DIR>/admin/xxxxx/bdump/xxxxx_dbw0_23728.trc:
In the DBWR tracefile you see RBAL process spinning on the following code functions:
kfkUfsUnident
kfkUnident
kfdGlobalClose
kfgbSendGlobalClose
The other symptoms of this issue could be
- RMAN backup hang and/or slow
- RDBMS Instance Shutdown Immediate hang/slow with no activity
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |