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ORA-00314: log 20 of thread 1, expected sequence# 108055 doesn't match 108053

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Ora-00314

Symptom:

*** 2012-03-30 16:55:32.921

*** SERVICE NAME:() 2012-03-30 16:55:32.920

*** SESSION ID:(139.1) 2012-03-3016:55:32.920

ORA-00314: log 20 of thread 1, expected sequence# 108055 doesn't match 108053

ORA-00312: online log 20 thread 1:'+STANDBY_ARCH/sfc12stb/onlinelog/group_20.1261.735834135'

ORA-00314: log 20 of thread 1, expectedsequence# 108055 doesn't match108053

ORA-00312: online log 20 thread 1: '+STANDBY_DATA/sfc12stb/onlinelog/group_20.517.735834133'

ORA-00314: log 20 of thread 1, expectedsequence# 108055 doesn't match 108053

ORA-00312: online log 20 thread 1:'+STANDBY_ARCH/sfc12stb/onlinelog/group_20.1261.735834135'

ORA-00314: log 20 of thread 1, expectedsequence# 108055 doesn't match 108053

ORA-00312: online log 20 thread 1:'+STANDBY_DATA/sfc12stb/onlinelog/group_20.517.735834133'

Solution:

[email protected]> Alter database recover managed standby database cancel;

Database altered.

[email protected]> select * from v$standby_log;

GROUP# DBID                                    THREAD#  SEQUENCE#      BYTES       USED ARC STATUS       FIRST_CHANGE# FIRST_TIME   LAST_CHANGE#

---------------------------------------------- ------- ---------- -------------------- --- ---------- --------------- ------------ ------------

LAST_TIME

------------

    161192333070                                    3     108147  104857600   8314880 YES ACTIVE       219436391739 30-MAR-12     2.1944E+11

30-MAR-12

    171192333070                                    2     107586  104857600  31790080 YES ACTIVE       219435057563 30-MAR-12     2.1944E+11

30-MAR-12

    18UNASSIGNED                                    2          0  104857600       1024 NO UNASSIGNED               0                         0

    19UNASSIGNED                                    3          0  104857600       1024 NO UNASSIGNED               0                         0

    20 1192333070                                    1     108055 104857600          0 YESACTIVE        219427350191 30-MAR-12      2.1944E+11

30-MAR-12

發現group 20 中的這個log 一直在active,實際上這個log已經被應用過了。

    21UNASSIGNED                                    1          0  104857600       1024 NO UNASSIGNED               0                         0

    221192333070                                    1     108065  104857600  23578624 YES ACTIVE       219436468496 30-MAR-12     2.1944E+11

30-MAR-12

    23UNASSIGNED                                    2          0 104857600       1024 NO  UNASSIGNED               0                         0

    24UNASSIGNED                                    3          0  104857600       1024 NO UNASSIGNED               0                         0

GROUP# DBID                                     THREAD#  SEQUENCE#     BYTES       USED ARC STATUS       FIRST_CHANGE# FIRST_TIME   LAST_CHANGE#

---------------------------------------------- ------- ---------- -------------------- --- ---------- --------------- ------------ ------------

LAST_TIME

------------

    25UNASSIGNED                                    3          0  104857600       1024 NO UNASSIGNED               0                         0

    26UNASSIGNED                                    2          0  104857600       1024 NO UNASSIGNED               0                         0

    27UNASSIGNED                                    1          0  104857600       1024 NO UNASSIGNED               0                         0

    28UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

    29UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

    30UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

15 rows selected.

[email protected]> alter database clear logfile group 20; ##将這個redo group清空

Database altered.

[email protected]> select * from v$standby_log;  ##查詢确認

GROUP# DBID                                    THREAD#  SEQUENCE#      BYTES       USED ARC STATUS       FIRST_CHANGE# FIRST_TIME   LAST_CHANGE#

------ ----------------------------------------------- ---------- ---------- ---------- --- ---------- --------------------------- ------------

LAST_TIME

------------

    161192333070                                    3     108147  104857600   8444928 YES ACTIVE       219436391739 30-MAR-12     2.1944E+11

30-MAR-12

    171192333070                                    2     107586  104857600  32610304 YES ACTIVE       219435057563 30-MAR-12     2.1944E+11

30-MAR-12

    18UNASSIGNED                                     2          0 104857600       1024 NO  UNASSIGNED               0                         0

    19UNASSIGNED                                    3          0  104857600       1024 NO UNASSIGNED               0                         0

    20UNASSIGNED                                    1          0  104857600 104857600 YES UNASSIGNED   219427350191 30-MAR-12     2.1944E+11

30-MAR-12

 ##已經被清除

    21UNASSIGNED                                    1          0  104857600       1024 NO UNASSIGNED               0                         0

    221192333070                                    1     108065  104857600  28276736 YES ACTIVE        21943646849630-MAR-12      2.1944E+11

30-MAR-12

    23UNASSIGNED                                    2          0  104857600       1024 NO UNASSIGNED               0                         0

    24UNASSIGNED                                    3          0  104857600       1024 NO UNASSIGNED               0                         0

GROUP# DBID                                    THREAD#  SEQUENCE#      BYTES       USED ARC STATUS       FIRST_CHANGE# FIRST_TIME   LAST_CHANGE#

---------------------------------------------- ------- ---------- -------------------- --- ---------- --------------- ------------ ------------

LAST_TIME

------------

    25UNASSIGNED                                     3         0  104857600       1024 NO UNASSIGNED               0                         0

    26UNASSIGNED                                    2          0  104857600       1024 NO UNASSIGNED               0                         0

    27UNASSIGNED                                    1          0  104857600       1024 NO UNASSIGNED               0                         0

    28UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

    29UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

    30UNASSIGNED                                    0          0  104857600       1024 YES UNASSIGNED               0                         0

15 rows selected.

##重新啟用redo log real time apply

[email protected]> alter database recover managed standby databasedisconnect;

Database altered.

[email protected]> alter database recover managed standby databasecancel;

Database altered.

[email protected]> alter database recover managed standby databaseusing current logfile disconnect;

Database altered.

[email protected]> exit

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metalink solution

ORA-00314: LOG 404 OF THREAD 4, EXPECTED SEQUENCE# 33808 DOESN'T MATCH 33543 [ID 1077564.1]
Modified 15-APR-2011     Type PROBLEM     Status PUBLISHED

Inthis Document

  Symptoms

  Changes

  Cause

  Solution

Applies to:

Oracle Server - Enterprise Edition - Version: 10.1.0.5 to11.2.0.2 - Release: 10.1 to 11.2

Information in this document applies to any platform.

Symptoms

Following errors are received when attempting to startup standby or while logsare being applied

ORA-00314: log 404 of thread 4, expected sequence# 33808doesn't match 33543

ORA-00312: online log 404 thread 4:'+INDEX01/test/onlinelog/group_404.468.703522549'

ORA-00314: log 404 of thread 4, expected sequence# 33808 doesn't match 33543

ORA-00312: online log 404 thread 4:'+DATA01/test/onlinelog/group_404.450.703522549'

Changes

Standby redo is being used.

while archives are being transferred, network outage, instance crash occurred.

Cause

Standby redo has corrupt entry.

Instance crash while redo entry being transfer/received

The error message with ora-314 tells you the standby redo with corruption

ie)

ORA-00314: log 404 of thread 4, expected sequence# 33808 doesn't match 33543

==> redo log group (# 404) is the one with corruption.

When problem (instance crash,network problem) happened, it was receivingsequence 33808 and was corrupted in the middle. so the header has info onsequence 33808 but current archive sequence # being transferred is 33543.

You may see the another standby redo is receiving the sequence# 33543 inv$standby_log with two of them are active status

v$standby_log

------------------------

GROUP# DBID THREAD# SEQUENCE#

---------- ---------------------------------------- ---------- ----------

BYTES USED ARC STATUS FIRST_CHANGE# FIRST_TIME

---------- ---------- --- ---------- ------------- -------------------

LAST_CHANGE# LAST_TIME

------------ -------------------

401 1863397730 4 34381

104857600 93738496 YES ACTIVE 5.9903E+12 Jan 28 2010 05:22PM

5.9903E+12 Jan 28 2010 06:52PM

404 1863397730 4 33808

104857600 0 YES ACTIVE 5.9902E+12 Jan 24 2010 02:04AM

5.9903E+12 Jan 28 2010 06:52PM

------------------------------------------------------

Solution

Clear standby redo with ora-314 error.

Stop recovery on standby side.

SQL> Alter database recover managed standbydatabase cancel;

clear standby redo group 404. -

SQL>  alter database clear logfile group 404

You may have to use the 'unarchived'-Keyword to be able to clear the StandbyRedoLog Group in most Cases, eg.

SQL>alter database clear unarchived logfile group 404;

Related

Products

·         Oracle Database Products > Oracle Database > Oracle Database > Oracle Server - Enterprise Edition

Keywords

STANDBY DATABASE; V$STANDBY_LOG
Errors
ORA-314; ORA-312; 314 ERROR
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