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RE: Managing Archived Redo Logs

From: Hand, Michael T <HANDM_at_polaroid.com>
Date: Wed, 23 Jul 2003 15:37:59 -0400
Message-Id: <25998.339241@fatcity.com>


To piggyback on John's reply, one of our 8173 test systems filled the archive destination over the weekend during a application upgrade. Now the Unix directory was fill for less than 90 minutes and the database was hung/halted for less than 45 minutes but 10s of thousands of line of the following were written to the alert log:

ARC2: Beginning to archive log# 9 seq# 160
ARC2: Failed to archive log# 9 seq# 160
ARC2: Beginning to archive log# 10 seq# 161
ARC2: Failed to archive log# 10 seq# 161

As the database spawned 9 ARCn processes and continued to attempt to write out filled redo logs. If this goes on too long you are also at risk of filling the 'background_dump_dest' directory as well.

Mike Hand

-----Original Message-----
From: John Kanagaraj [mailto:john.kanagaraj_at_hds.com] Sent: Wednesday, July 23, 2003 3:44 PM
To: Multiple recipients of list ORACLE-L Subject: RE: Managing Archived Redo Logs

Just to add that you _can_ be informed of this if you monitor the alert log. The following errors are logged (from a live system, and way back from 7.3.4!)

Thread 1 advanced to log sequence 69529
  Current log# 1 seq# 69529 mem# 0: /u090/oradata/XXXX/REDO0101.DBF   Current log# 1 seq# 69529 mem# 1: /u091/oradata/XXXX/REDO0102.DBF ...skipping...

ORA-00255: error archiving log 1 of thread 1, sequence # 69616
ORA-00312: online log 1 thread 1: '/u090/oradata/XXXX/REDO0101.DBF'
ORA-00312: online log 1 thread 1: '/u091/oradata/XXXX/REDO0102.DBF'
ORA-00272: error writing archive log
ORA-00334: archived log: '/u091/oradata/XXXX/arch/arch1_69616.log'
ARCH:
 ORA-00255: error archiving log 1 of thread 1, sequence # 69616
ORA-00312: online log 1 thread 1: '/u090/oradata/XXXX/REDO0101.DBF'
ORA-00312: online log 1 thread 1: '/u091/oradata/XXXX/REDO0102.DBF'
ORA-00272: error writing archive log
ORA-00334: archived log: '/u091/oradata/XXXX/arch/arch1_69616.log'
Mon May 13 05:36:57 2002
Thread 1 cannot allocate new log, sequence 69618 Checkpoint not complete

John Kanagaraj

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Original text of this message

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