dataguard 归档丢失(主库中无此丢失归档处理),备库基于SCN恢复

dataguard 归档丢失(主库中无此丢失归档处理),备库基于SCN恢复

环境:

OS: CentOS 6.5

DB: Oracle 10.2.0.5 



１.主备库环境

主库:

SQL> select dbid,name,LOG_MODE,open_mode,db_unique_name,DATABASE_ROLE,PROTECTION_MODE from v$database;



      DBID NAME      LOG_MODE	  OPEN_MODE  DB_UNIQUE_NAME	  DATABASE_ROLE    PROTECTION_MODE

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

 351758316 NETDATA   ARCHIVELOG   READ WRITE netdata_pd 	  PRIMARY	   MAXIMUM PERFORMANCE



SQL> archive log list;

Database log mode	       Archive Mode

Automatic archival	       Enabled

Archive destination	       /u01/app/oracle/archive/netdata

Oldest online log sequence     65

Next log sequence to archive   67

Current log sequence	       67

SQL> 



备库:

SQL> select dbid,name,LOG_MODE,open_mode,db_unique_name,DATABASE_ROLE,PROTECTION_MODE from v$database;



      DBID NAME       LOG_MODE	   OPEN_MODE  DB_UNIQUE_ DATABASE_ROLE	  PROTECTION_MODE

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

 351758316 NETDATA    ARCHIVELOG   MOUNTED    netdata_sd PHYSICAL STANDBY MAXIMUM PERFORMANCE



SQL> archive log list;

Database log mode	       Archive Mode

Automatic archival	       Enabled

Archive destination	       /u01/app/oracle/archive/netdata

Oldest online log sequence     63

Next log sequence to archive   0

Current log sequence	       67

SQL> 



2.模拟归档丢失

备库操作:

备库取消归档应用

SQL> ALTER DATABASE recover managed standby DATABASE cancel;



Database altered.



备库以只读模式打开

SQL> alter database open read only;



Database altered.



SQL> 

这张表是我建的测试表，用一个job跑的插入数据(每隔3S插入一条

SQL> select count(*) from hr.test;



  COUNT(*)

----------

     28501



SQL> 



主库操作:

SQL> select count(*) from hr.test;



  COUNT(*)

----------

     31143



SQL> 

可以看到记录数不一致，这是因为归还没有传输过来 



主备归档情况

主库操作

SQL> set line 200

SQL> set pagesize 200

SQL> col name format A50

SQL> select name,SEQUENCE#,APPLIED from  v$archived_log where dest_id=1;



/u01/app/oracle/archive/netdata/1_52_857898543.arc	   52 NO

/u01/app/oracle/archive/netdata/1_53_857898543.arc	   53 NO

/u01/app/oracle/archive/netdata/1_54_857898543.arc	   54 NO

/u01/app/oracle/archive/netdata/1_55_857898543.arc	   55 NO

/u01/app/oracle/archive/netdata/1_56_857898543.arc	   56 NO

/u01/app/oracle/archive/netdata/1_57_857898543.arc	   57 NO

/u01/app/oracle/archive/netdata/1_58_857898543.arc	   58 NO

/u01/app/oracle/archive/netdata/1_59_857898543.arc	   59 NO

/u01/app/oracle/archive/netdata/1_60_857898543.arc	   60 NO

/u01/app/oracle/archive/netdata/1_61_857898543.arc	   61 NO

/u01/app/oracle/archive/netdata/1_62_857898543.arc	   62 NO

/u01/app/oracle/archive/netdata/1_63_857898543.arc	   63 NO

/u01/app/oracle/archive/netdata/1_64_857898543.arc	   64 NO

/u01/app/oracle/archive/netdata/1_65_857898543.arc	   65 NO

/u01/app/oracle/archive/netdata/1_66_857898543.arc	   66 NO



64 rows selected.

SQL> select * from v$log;



    GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS	    FIRST_CHANGE# FIRST_TIM

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

	12	    1	      65  104857600	     2 YES INACTIVE		   715138 13-SEP-14

	13	    1	      66  104857600	     2 YES INACTIVE		   715158 13-SEP-14

	14	    1	      67  104857600	     2 NO  CURRENT		   715164 13-SEP-14



SQL> 





备库操作

SQL> set line 200

SQL> set pagesize 200

SQL> col name format A50

SQL> select name,SEQUENCE#,APPLIED from  v$archived_log where dest_id=1;



NAME						    SEQUENCE# APP

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

/u01/app/oracle/archive/netdata/1_64_857898543.arc	   64 YES

/u01/app/oracle/archive/netdata/1_65_857898543.arc	   65 YES

/u01/app/oracle/archive/netdata/1_66_857898543.arc	   66 YES

/u01/app/oracle/archive/netdata/1_63_857898543.arc	   63 YES



SQL> select * from v$Log;



    GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS	    FIRST_CHANGE# FIRST_TIM

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

	12	    1	      65  104857600	     2 YES CLEARING		   715138 13-SEP-14

	13	    1	      63  104857600	     2 YES CLEARING		   714611 13-SEP-14

	14	    1	      67  104857600	     2 YES CLEARING_CURRENT	   715164 13-SEP-14







主库操作

SQL>  ALTER system SET log_archive_dest_state_2 = 'defer';



System altered.



SQL> 



SQL> alter system archive log current;



System altered.



SQL> alter system archive log current;



System altered.



SQL> alter system archive log current;



System altered.



SQL> alter system archive log current;



System altered.



SQL> alter system archive log current;



System altered.



SQL> 



删除归档

SQL> archive log list;

Database log mode	       Archive Mode

Automatic archival	       Enabled

Archive destination	       /u01/app/oracle/archive/netdata

Oldest online log sequence     70

Next log sequence to archive   72

Current log sequence	       72

SQL> 



删除归档

[oracle@oracle10g-dg1-213-100 netdata]$ rm -rvf 1\_7*

已删除"1_70_857898543.arc"

已删除"1_71_857898543.arc"

已删除"1_7_857893401.dbf"

主库开启备库归档

SQL>  ALTER system SET log_archive_dest_state_2 = 'enable';



备库重新开启应用

SQL> ALTER DATABASE recover managed standby DATABASE disconnect FROM SESSION;



Database altered.



SQL> 

System altered.



SQL> 



查询备库alert.log

Waiting for all non-current ORLs to be archived...

Media Recovery Waiting for thread 1 sequence 67

Fetching gap sequence in thread 1, gap sequence 67-70

Sat Sep 13 21:00:27 CST 2014

Completed: ALTER DATABASE recover managed standby DATABASE disconnect FROM SESSION

Sat Sep 13 21:00:57 CST 2014

FAL[client]: Failed to request gap sequence 

 GAP - thread 1 sequence 67-70

 DBID 351758316 branch 857898543

FAL[client]: All defined FAL servers have been attempted.

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

Check that the CONTROL_FILE_RECORD_KEEP_TIME initialization

parameter is defined to a value that is sufficiently large

enough to maintain adequate log switch information to resolve

archivelog gaps.

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



有gap产生了



备库查询

select name,sequence#,applied from v$archived_log a where a.sequence#=(select max(sequence#) from v$archived_log);



NAME						    SEQUENCE# APP

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

/u01/app/oracle/archive/netdata/1_66_857898543.arc	   66 YES



主库查询

SQL> SELECT SEQUENCE#,FIRST_CHANGE#,NEXT_CHANGE# FROM v$archived_log WHERE SEQUENCE# > 67 ORDER BY 1;



 SEQUENCE# FIRST_CHANGE# NEXT_CHANGE#

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

	68	  745961       745971

	69	  745971       745984

	70	  745984       745988

	71	  745988       746005



SQL> 



主库

基于SCN增量备份

RMAN> backup device type disk incremental from scn 715164 database format '/u01/backup/netdata_incre%U.bbk';



Starting backup at 13-SEP-14

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

input datafile fno=00001 name=/u01/app/oracle/oradata/netdata/system01.dbf

input datafile fno=00003 name=/u01/app/oracle/oradata/netdata/sysaux01.dbf

input datafile fno=00005 name=/u01/app/oracle/oradata/netdata/example01.dbf

input datafile fno=00006 name=/u01/app/oracle/oradata/netdata/HTSDK_01.dbf

input datafile fno=00007 name=/u01/app/oracle/oradata/netdata/HTSDK_INDEX_01.dbf

input datafile fno=00002 name=/u01/app/oracle/oradata/netdata/undotbs01.dbf

input datafile fno=00004 name=/u01/app/oracle/oradata/netdata/users01.dbf

channel ORA_DISK_1: starting piece 1 at 13-SEP-14

channel ORA_DISK_1: finished piece 1 at 13-SEP-14

piece handle=/u01/backup/netdata_incre0jpie810_1_1.bbk tag=TAG20140913T212904 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:01:18

channel ORA_DISK_1: starting full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

including current control file in backupset

including current SPFILE in backupset

channel ORA_DISK_1: starting piece 1 at 13-SEP-14

channel ORA_DISK_1: finished piece 1 at 13-SEP-14

piece handle=/u01/backup/netdata_incre0kpie83e_1_1.bbk tag=TAG20140913T212904 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04

Finished backup at 13-SEP-14



RMAN> 



主库重新生成控制文件



SQL> ALTER DATABASE CREATE standby controlfile AS '/u01/backup/standby.ctl';   



Database altered.



拷贝文件至备库

[oracle@oracle10g-dg1-213-100 backup]$ scp * [email protected]:/u01/backup/

[email protected]'s password: 

netdata_incre0jpie810_1_1.bbk                                                                       100%   17MB   8.5MB/s   00:02    

netdata_incre0kpie83e_1_1.bbk                                                                       100% 7200KB   7.0MB/s   00:01    

standby.ctl                                                                                         100% 7120KB   7.0MB/s   00:01  



备库操作

SQL> shutdown immediate;

ORA-01109: database not open

Database dismounted.

ORACLE instance shut down.

SQL> startup nomount;

ORACLE instance started.



Total System Global Area  704643072 bytes

Fixed Size		    2098912 bytes

Variable Size		  192940320 bytes

Database Buffers	  503316480 bytes

Redo Buffers		    6287360 bytes

SQL> quit



恢复控制文件

RMAN> restore controlfile from '/u01/backup/standby.ctl';



Starting restore at 13-SEP-14

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=541 devtype=DISK



channel ORA_DISK_1: copied control file copy

output filename=/u01/app/oracle/oradata/netdata/control01.ctl

output filename=/u01/app/oracle/oradata/netdata/control02.ctl

output filename=/u01/app/oracle/oradata/netdata/control03.ctl

Finished restore at 13-SEP-14



RMAN> 



RMAN> catalog start with '/u01/backup'

2> ;



searching for all files that match the pattern /u01/backup



List of Files Unknown to the Database

=====================================

File Name: /u01/backup/netdata_incre0jpie810_1_1.bbk

File Name: /u01/backup/standby.ctl

File Name: /u01/backup/control01.ctl

File Name: /u01/backup/netdata_incre0kpie83e_1_1.bbk



Do you really want to catalog the above files (enter YES or NO)? yes

cataloging files...

cataloging done



List of Cataloged Files

=======================

File Name: /u01/backup/netdata_incre0jpie810_1_1.bbk

File Name: /u01/backup/standby.ctl

File Name: /u01/backup/control01.ctl

File Name: /u01/backup/netdata_incre0kpie83e_1_1.bbk



RMAN>  recover DATABASE noredo;



Starting recover at 13-SEP-14

using channel ORA_DISK_1

channel ORA_DISK_1: starting incremental datafile backupset restore

channel ORA_DISK_1: specifying datafile(s) to restore from backup set

destination for restore of datafile 00001: /u01/app/oracle/oradata/netdata/system01.dbf

destination for restore of datafile 00002: /u01/app/oracle/oradata/netdata/undotbs01.dbf

destination for restore of datafile 00003: /u01/app/oracle/oradata/netdata/sysaux01.dbf

destination for restore of datafile 00004: /u01/app/oracle/oradata/netdata/users01.dbf

destination for restore of datafile 00005: /u01/app/oracle/oradata/netdata/example01.dbf

destination for restore of datafile 00006: /u01/app/oracle/oradata/netdata/HTSDK_01.dbf

destination for restore of datafile 00007: /u01/app/oracle/oradata/netdata/HTSDK_INDEX_01.dbf

channel ORA_DISK_1: reading from backup piece /u01/backup/netdata_incre0jpie810_1_1.bbk

channel ORA_DISK_1: restored backup piece 1

piece handle=/u01/backup/netdata_incre0jpie810_1_1.bbk tag=TAG20140913T212904

channel ORA_DISK_1: restore complete, elapsed time: 00:00:04



Finished recover at 13-SEP-14



RMAN> 



查询alert 日志

Sat Sep 13 22:04:34 CST 2014

RFS LogMiner: Client disabled from further notification

Sat Sep 13 22:04:54 CST 2014

Incremental restore complete of datafile 4 /u01/app/oracle/oradata/netdata/users01.dbf

  checkpoint is 753898

Incremental restore complete of datafile 2 /u01/app/oracle/oradata/netdata/undotbs01.dbf

  checkpoint is 753898

  last deallocation scn is 669702

Incremental restore complete of datafile 5 /u01/app/oracle/oradata/netdata/example01.dbf

  checkpoint is 753898

  last deallocation scn is 399417

Incremental restore complete of datafile 6 /u01/app/oracle/oradata/netdata/HTSDK_01.dbf

  checkpoint is 753898

Incremental restore complete of datafile 7 /u01/app/oracle/oradata/netdata/HTSDK_INDEX_01.dbf

  checkpoint is 753898

Incremental restore complete of datafile 3 /u01/app/oracle/oradata/netdata/sysaux01.dbf

  checkpoint is 753898

  last deallocation scn is 421688

Incremental restore complete of datafile 1 /u01/app/oracle/oradata/netdata/system01.dbf

  checkpoint is 753898

  last deallocation scn is 472342



备库重新应用

SQL>  ALTER DATABASE recover managed standby DATABASE disconnect FROM SESSION;



Database altered.



SQL> 





测试归档是否

SQL> alter system switch logfile;



System altered.



SQL> 



查询主备

备库操作



archive log list;

Database log mode	       Archive Mode

Automatic archival	       Enabled

Archive destination	       /u01/app/oracle/archive/netdata

Oldest online log sequence     71

Next log sequence to archive   0

Current log sequence	       73

col name format A50;

col dest_name format A40

col error format A20

set line 200;

select name,sequence#,applied from v$archived_log a where a.sequence#=(select max(sequence#) from v$archived_log);



NAME						    SEQUENCE# APP

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

/u01/app/oracle/archive/netdata/1_72_857898543.arc	   72 YES



col dest_name format A40

SQL>  select dest_name,status,error from v$archive_dest where rownum<3; 



DEST_NAME				 STATUS    ERROR

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

LOG_ARCHIVE_DEST_1			 VALID

LOG_ARCHIVE_DEST_2			 VALID



SQL> 





主库操作



archive log list;

col name format A50;

Database log mode	       Archive Mode

Automatic archival	       Enabled

Archive destination	       /u01/app/oracle/archive/netdata

Oldest online log sequence     71

Next log sequence to archive   73

Current log sequence	       73

col dest_name format A40

col error format A20

set line 200;

select name,sequence#,applied from v$archived_log a where a.sequence#=(select max(sequence#) from v$archived_log);



NAME						    SEQUENCE# APP

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

/u01/app/oracle/archive/netdata/1_72_857898543.arc	   72 NO

netdata_sd						   72 YES



col dest_name format A40

SQL>  select dest_name,status,error from v$archive_dest where rownum<3; 



DEST_NAME				 STATUS    ERROR

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

LOG_ARCHIVE_DEST_1			 VALID

LOG_ARCHIVE_DEST_2			 VALID



SQL>