由于希望测试一个DG问题，所以在Vmware上搭建测试环境，primary和standby放在同一台主机上。
搭建过程就不赘述，但是在最后，遇到了一些问题，这里记录一下，以备后续查阅。
----搭建过程中的一些命令-----
1. backup database format '/tmp/bk_%U'; 2. backup current controlfile for standby format '/tmp/stdbyctl.bkp'; 3. catalog start with '/tmp/'; 4. set controlfile autobackup format for device type disk to '/tmp/%F'; restore standby controlfile from '/tmp/stdbyctl.bkp'; 5. RMAN> CONNECT TARGET SYS/oracle@db; RMAN> CONNECT AUXILIARY SYS/oracle@stddb;
6. 最会std的pfile文件内容
db_file_name_convert= '+data/db/','+reco/stddb/' log_file_name_convert= '+RECO/db/archivelog/','+RECO/stddb/archivelog_std/' log_archive_format=%t_%s_%r.arc standby_file_management=auto compatible='11.2.0.0.0' control_files='+RECO/stddb/controlfile/current.260.834947597' <<<<<<在恢复control之前，先设定为control_files='+RECO'恢复之后，根据实际位置更改 db_block_size=8192 processes=150 remote_login_passwordfile='EXCLUSIVE' undo_tablespace='UNDOTBS1' undo_management=auto log_archive_config='dg_config=(primdb,stbdb)' log_archive_dest_1='location=+RECO/stddb/archivelog_std/ valid_for=(all_logfiles,all_roles) db_unique_name=stbdb'
问题一：
在设置listener的过程中，由于设定静态监听，在standby启动之后，同时又会注册一个动态监听，目前有两个监听，其中动态监听状态为blocked。
遇到的问题就是，在duplicate连接的时候，就会发生ORA-12528错误，而不能正常连接到standby。
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [oracle@OEL ~]$ lsnrctl status LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 30-DEC-2013 10:46:03 Copyright (c) 1991, 2009, Oracle. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production Start Date 27-NOV-2013 12:40:26 Uptime 32 days 22 hr. 5 min. 37 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/OEL/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=OEL.localdomain)(PORT=1521))) Services Summary... Service "+ASM" has 1 instance(s). Instance "+ASM", status READY, has 1 handler(s) for this service... Service "PRIMDB" has 1 instance(s). Instance "db", status READY, has 1 handler(s) for this service... Service "dbXDB" has 1 instance(s). Instance "db", status READY, has 1 handler(s) for this service... Service "stbdb" has 1 instance(s). Instance "stbdb", status UNKNOWN, has 1 handler(s) for this service... <<<<<<<<<<<<<<<<<<<<<< Service "stddb" has 1 instance(s). Instance "stddb", status READY, has 1 handler(s) for this service... <<<<<<<<<<<<<<<<<<<<<< The command completed successfully ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
通过设置tnsnames.ora，可以解决这个问题。
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stddb =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = OEL.localdomain)(PORT = 1521))
)
(CONNECT_DATA = (SERVICE_NAME = stddb)(UR=A)) <--------------------In order to avoid error ORA-12528 )
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
问题二：
在执行下面命令之后，直接primary就crash掉，经过查询alert发现，是redo broken导致的
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
查询standby alert，发现如下信息：
（在ALTER DATABASE RECOVER...开始之后，第一件事情就是clear redo log，这样就直接导致primary crash）
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # tail -f alert_stddb.log Clearing online redo logfile 1 complete Clearing online redo logfile 2 +DATA/db/redo02.log Clearing online log 2 of thread 1 sequence number 5 Clearing online redo logfile 2 complete Clearing online redo logfile 3 +DATA/db/redo03.log Clearing online log 3 of thread 1 sequence number 3 Tue Dec 24 14:32:49 2013 Clearing online redo logfile 3 complete Tue Dec 24 14:32:49 2013 Media Recovery Waiting for thread 1 sequence 4 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
在重建几次之后，问题依然。
由于datafile和archivelog都使用convert参数转换了，但是redo是无法转换的，如何解决这个问题呢？
经过分析，发现在duplicate的最后，有一些警告信息：
~~~~~~~~~duplicate the standby databsae~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
RMAN> CONNECT TARGET SYS/oracle@db;
RMAN> CONNECT AUXILIARY SYS/oracle@stddb;
connected to auxiliary database: DB (not mounted)
RMAN> duplicate target database for standby;
Starting Duplicate Db at 24-DEC-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=13 device type=DISK
contents of Memory Script:
{
restore clone standby controlfile;
}
executing Memory Script
Starting restore at 24-DEC-13
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /tmp/stdbyctl.bkp
channel ORA_AUX_DISK_1: piece handle=/tmp/stdbyctl.bkp tag=TAG20131224T133449
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:08
output file name=+RECO/stddb/controlfile/current.259.835018533
Finished restore at 24-DEC-13
contents of Memory Script:
{
sql clone 'alter database mount standby database';
}
executing Memory Script
sql statement: alter database mount standby database
contents of Memory Script:
{
set newname for tempfile 1 to
"+RECO/stddb/temp01.dbf";
switch clone tempfile all;
set newname for datafile 1 to
"+RECO/stddb/system01.dbf";
set newname for datafile 2 to
"+RECO/stddb/sysaux01.dbf";
set newname for datafile 3 to
"+RECO/stddb/undotbs01.dbf";
set newname for datafile 4 to
"+RECO/stddb/users01.dbf";
restore
clone database
;
}
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to +RECO/stddb/temp01.dbf in control file
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 24-DEC-13
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00001 to +RECO/stddb/system01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00002 to +RECO/stddb/sysaux01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00003 to +RECO/stddb/undotbs01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00004 to +RECO/stddb/users01.dbf
channel ORA_AUX_DISK_1: reading from backup piece /tmp/bk_01osanei_1_1
channel ORA_AUX_DISK_1: piece handle=/tmp/bk_01osanei_1_1 tag=TAG20131224T132953
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:04:27
Finished restore at 24-DEC-13
contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=1 STAMP=835019033 file name=+RECO/stddb/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=2 STAMP=835019033 file name=+RECO/stddb/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=3 STAMP=835019033 file name=+RECO/stddb/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=4 STAMP=835019033 file name=+RECO/stddb/users01.dbf
ORACLE error from auxiliary database: ORA-01511: error in renaming log/data files <<<<<<<<<<<<<<<<<<<<<<<<
ORA-01275: Operation RENAME is not allowed if standby file management is automatic. <<<<<<<<<<<<<<<<<<<<<<<<
RMAN-05535: WARNING: All redo log files were not defined properly.
ORACLE error from auxiliary database: ORA-01511: error in renaming log/data files
ORA-01275: Operation RENAME is not allowed if standby file management is automatic.
RMAN-05535: WARNING: All redo log files were not defined properly.
ORACLE error from auxiliary database: ORA-01511: error in renaming log/data files
ORA-01275: Operation RENAME is not allowed if standby file management is automatic.
RMAN-05535: WARNING: All redo log files were not defined properly.
Finished Duplicate Db at 24-DEC-13
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
后手动修改当standby_file_management为MANUAL模式，可以duplicate并且rename成功，并rename正broken0~2.
（这个是我在pfile中有这个standby_file_management=auto）
checkpoint is 977553 last deallocation scn is 959057 Undo Optimization current scn is 974128 Tue Dec 24 15:16:57 2013 Switch of datafile 1 complete to datafile copy checkpoint is 977553 Switch of datafile 2 complete to datafile copy checkpoint is 977553 Switch of datafile 3 complete to datafile copy checkpoint is 977553 Switch of datafile 4 complete to datafile copy checkpoint is 977553 alter database rename file '+DATA/db/redo01.log' to 'broken0' Completed: alter database rename file '+DATA/db/redo01.log' to 'broken0' <<<<<<<< alter database rename file '+DATA/db/redo02.log' to 'broken1' Completed: alter database rename file '+DATA/db/redo02.log' to 'broken1' alter database rename file '+DATA/db/redo03.log' to 'broken2' Completed: alter database rename file '+DATA/db/redo03.log' to 'broken2' RFS connections are allowed
在执行ALTER DATABASE RECOVER...的时候，依然需要去清空redo，只不过，应经将redo rename了，所以不会影响主库的redo log了
~~~~~~~~~~~~~~~~~~~~~ Tue Dec 24 15:45:37 2013 ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION Attempt to start background Managed Standby Recovery process (stddb) Tue Dec 24 15:45:37 2013 MRP0 started with pid=21, OS id=21343 MRP0: Background Managed Standby Recovery process started (stddb) started logmerger process Tue Dec 24 15:45:43 2013 Managed Standby Recovery not using Real Time Apply Parallel Media Recovery started with 2 slaves Waiting for all non-current ORLs to be archived... All non-current ORLs have been archived. Errors in file /u01/app/oracle/product/11.2.0/dbhome_1/log/diag/rdbms/stddb/stddb/trace/stddb_mrp0_21343.trc: ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/broken0' <<<<<<<<<<<<<<<< ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ...... Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION Clearing online redo logfile 1 complete Errors in file /u01/app/oracle/product/11.2.0/dbhome_1/log/diag/rdbms/stddb/stddb/trace/stddb_mrp0_21343.trc: ORA-00313: open failed for members of log group 2 of thread 1 ORA-00312: online log 2 thread 1: '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/broken1' ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ...... Tue Dec 24 15:45:48 2013 Clearing online redo logfile 2 complete Errors in file /u01/app/oracle/product/11.2.0/dbhome_1/log/diag/rdbms/stddb/stddb/trace/stddb_mrp0_21343.trc: ORA-00313: open failed for members of log group 3 of thread 1 ORA-00312: online log 3 thread 1: '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/broken2' ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ...... Clearing online redo logfile 3 complete Media Recovery Waiting for thread 1 sequence 4
总结：由于之前的DG搭建，都是在两个不同的主机上实施，也没有关心过这个问题，因为standby清空primary redo的动作一定是失败的。但是现在是在一个主机上，standby能发现原primary的redo，并且由于rename失败，所以就直接clear primary redo导致primary 无法启动。
而root cause就是我在编辑pfile的时候，多写了standby_file_management=auto，其实不写的话，默认值是manual的，就不会出现这个问题。