RMAN-00571 And RMAN-06135 Errors Executing Backup

Running the backup (full and hot) in a database fails with the following error;

host command complete
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06135: error executing host command: Additional information: 256

Looking at MOS see that is affected by CF type locks, these occur when acquiring a lock on the file control. Examined the code  sql that was running at the time in the database, create appear several indices. On another note on metalink I find this;

When performing DML operations using either NOLOGGING or UNRECOVERABLE option, then oracle records the unrecoverable SCN in the controlfiles. Typically you will see an increase in waits appearing for ‘control file parallel write’ as well however the session is not blocked for this wait event but rather the session performing the controlfile write will be holding the CF enqueue and the other sessions performing the unrecoverable (nologging) operation will be waiting to get a CF enqueue to update the controlfile with the unrecoverable SCN

Typical operations that can produce

direct load (SQL*Loader)
direct-load INSERT
CREATE TABLE … AS SELECT
CREATE INDEX
ALTER TABLE … MOVE PARTITION
ALTER TABLE … SPLIT PARTITION
ALTER INDEX … SPLIT PARTITION
ALTER INDEX … REBUILD
ALTER INDEX … REBUILD PARTITION
INSERT, UPDATE, and DELETE on LOBs in NOCACHE NOLOGGING mode stored out of line

HTH – Antonio NAVARRO

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