dataguard日志损坏处理
===== 问题 =====
日志损坏无法应用日志(开启MRP应用系统会因无法应用日志而关闭)
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION
Incomplete read from log member '/arch/2_1119_997386564.dbf'. Trying next member.
Incomplete read from log member '/arch/2_1119_997386564.dbf'. Trying next member.
Errors in file /oracle/app/oracle/diag/rdbms/orcldg/orcl/trace/orcl_pr00_40712.trc (incident=108241):
ORA-00353: log corruption near block 2056 change 15781869802803 time 07/31/2019 06:57:33
ORA-00334: archived log: '/arch/2_1119_997386564.dbf'
Incident details in: /oracle/app/oracle/diag/rdbms/orcldg/orcl/incident/incdir_108241/orcl_pr00_40712_i108241.trc
Errors with log /arch/2_1119_997386564.dbf
Fri Aug 02 08:53:53 2019
Dumping diagnostic data in directory=[cdmp_20190802085353], requested by (instance=1, osid=40712 (PR00)), summary=[incident=108241].
MRP0: Detected read corruption! Retry recovery once log is re-fetched...
Errors in file /oracle/app/oracle/diag/rdbms/orcldg/orcl/trace/orcl_pr00_40712.trc:
ORA-00354: corrupt redo log block header
ORA-00353: log corruption near block 2056 change 15781869802803 time 07/31/2019 06:57:33
ORA-00334: archived log: '/arch/2_1119_997386564.dbf'
Managed Standby Recovery not using Real Time Apply
Recovery interrupted!
Fri Aug 02 08:53:54 2019
Sweep [inc][108241]: completed==== 备库损坏的日志 ====
ORA-00334: archived log: '/arch/1_1091_997386564.dbf'
ORA-00334: archived log: '/arch/2_1119_997386564.dbf'
ORA-00334: archived log: '/arch/1_1093_997386564.dbf'
RA-00334: archived log: '/arch/2_1120_997386564.dbf'
==== 手动传输损坏的日志到备库 ====
分几种情况
1、主库归档日志还保留,直接将备库损坏的日志scp至备库
2、主库归档日志已清理,rman备份还保留,rman恢复归档日志后传输到备库
3、主库归档日志已清理,无备份,只能重新搭建adg了
#下面说一下第二种情况
1、查看归档日志备份信息
rman target /
RMAN>list backup of archivelog from logseq 1080 until logseq 1100;
2、主库恢复1091日志文件至本地
RMAN> run{
2> set archivelog destination to '/rman_bak/archbak';
3> restore archivelog SEQUENCE BETWEEN 1080 AND 1100;
4> } executing command: SET ARCHIVELOG DESTINATION Starting restore at 02-AUG-19
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=872 instance=orcl1 device type=DISK archived log for thread 1 with sequence 1092 is already on disk as file +ARCH/archivelog/1_1092_997386564.dbf
archived log for thread 1 with sequence 1093 is already on disk as file +ARCH/archivelog/1_1093_997386564.dbf
archived log for thread 1 with sequence 1094 is already on disk as file +ARCH/archivelog/1_1094_997386564.dbf
archived log for thread 1 with sequence 1095 is already on disk as file +ARCH/archivelog/1_1095_997386564.dbf
archived log for thread 1 with sequence 1096 is already on disk as file +ARCH/archivelog/1_1096_997386564.dbf
archived log for thread 1 with sequence 1097 is already on disk as file +ARCH/archivelog/1_1097_997386564.dbf
archived log for thread 1 with sequence 1098 is already on disk as file +ARCH/archivelog/1_1098_997386564.dbf
archived log for thread 1 with sequence 1099 is already on disk as file +ARCH/archivelog/1_1099_997386564.dbf
archived log for thread 1 with sequence 1100 is already on disk as file +ARCH/archivelog/1_1100_997386564.dbf
channel ORA_DISK_1: starting archived log restore to user-specified destination
archived log destination=/rman_bak/archbak
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1080
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1081
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1082
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1083
channel ORA_DISK_1: reading from backup piece /rman_bak/bak/arch_20190801_23241_1
channel ORA_DISK_1: piece handle=/rman_bak/bak/arch_20190801_23241_1 tag=TAG20190801T022702
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting archived log restore to user-specified destination
archived log destination=/rman_bak/archbak
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1084
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1085
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1086
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1087
channel ORA_DISK_1: reading from backup piece /rman_bak/bak/arch_20190801_23242_1
channel ORA_DISK_1: piece handle=/rman_bak/bak/arch_20190801_23242_1 tag=TAG20190801T022702
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting archived log restore to user-specified destination
archived log destination=/rman_bak/archbak
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1088
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1089
channel ORA_DISK_1: reading from backup piece /rman_bak/bak/arch_20190801_23243_1
channel ORA_DISK_1: piece handle=/rman_bak/bak/arch_20190801_23243_1 tag=TAG20190801T022702
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting archived log restore to user-specified destination
archived log destination=/rman_bak/archbak
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1090
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=1091
channel ORA_DISK_1: reading from backup piece /rman_bak/bak/arch_20190802_23296_1
channel ORA_DISK_1: piece handle=/rman_bak/bak/arch_20190802_23296_1 tag=TAG20190802T022801
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
Finished restore at 02-AUG-19
3、将1091#日志文件传输到备库
4、备库开启MRP应用并查看日志应用情况
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
SELECT NAME,applied FROM v$archived_log where applied='NO';
日志部分输出:
Media Recovery Log /arch/2_1125_997386564.dbf
Fri Aug 02 10:49:25 2019
Media Recovery Log /arch/1_1098_997386564.dbf
Fri Aug 02 10:49:36 2019
Media Recovery Log /arch/2_1126_997386564.dbf
Fri Aug 02 10:50:43 2019
Media Recovery Log /arch/1_1099_997386564.dbf
Fri Aug 02 10:50:57 2019
#查看进程状态:
select process,status,thread#,sequence# from v$managed_standby order by 3,1;
PROCESS STATUS THREAD# SEQUENCE#
--------- ------------ ---------- ----------
RFS IDLE 0 0
RFS IDLE 0 0
RFS IDLE 0 0
ARCH CLOSING 1 1457
ARCH CLOSING 1 1073
MRP0 APPLYING_LOG 1 1095
RFS WRITING 1 1458
ARCH CLOSING 2 1485
ARCH CLOSING 2 1483
RFS WRITING 2 1486 ORA-00334: archived log: '/arch/1_1156_997386564.dbf' Incomplete read from log member '/arch/2_1183_997386564.dbf'. Trying next member.
Incomplete read from log member '/arch/2_1183_997386564.dbf'. Trying next member.
Errors in file /oracle/app/oracle/diag/rdbms/orcldg/orcl/trace/orcl_pr00_1605.trc (incident=108235):
ORA-00353: log corruption near block 6152 change 15781873869856 time 07/31/2019 13:22:46
ORA-00334: archived log: '/arch/2_1183_997386564.dbf MRP0: Background Media Recovery process shutdown (orcl)
Fri Aug 02 13:10:28 2019
#手动传输日志:1_1156_997386564.dbf、/arch/2_1183_997386564.dbf
Media Recovery Log /arch/1_1156_997386564.dbf
Media Recovery Log /arch/2_1183_997386564.dbf
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION
Media Recovery Log /arch/2_1184_997386564.dbf
Fri Aug 02 14:53:11 2019
#核查以下日志是否applied
ORA-00334: archived log: '/arch/1_1166_997386564.dbf'
ORA-00334: archived log: '/arch/1_1163_997386564.dbf' /arch/1_1091_997386564.dbf
/arch/2_1119_997386564.dbf
/arch/1_1093_997386564.dbf
/arch/2_1120_997386564.dbf
/arch/2_1124_997386564.dbf
/arch/1_1156_997386564.dbf
/arch/2_1183_997386564.dbf
/arch/1_1158_997386564.dbf
/arch/1_1159_997386564.dbf
/arch/1_1160_997386564.dbf
/arch/1_1161_997386564.dbf
/arch/2_1190_997386564.dbf
/arch/1_1163_997386564.dbf
/arch/1_1166_997386564.dbf
/arch/2_1228_997386564.dbf ORA-16014: log 18 sequence# 1487 not archived, no available destinations
ORA-00312: online log 18 thread 2: '/oradata/orcldg/onlinelog/stdby_redo18.log ORA-00334: archived log: '/arch/2_1230_997386564.dbf'
ORA-00334: archived log: '/arch/2_1243_997386564.dbf'
ORA-00334: archived log: '/arch/2_1245_997386564.dbf'
ORA-00334: archived log: '/arch/1_1223_997386564.dbf'
ORA-00334: archived log: '/arch/2_1254_997386564.dbf'
ORA-00334: archived log: '/arch/1_1228_997386564.dbf' SQL> SELECT NAME,applied FROM v$archived_log where name like '%2_1254%'; NAME APPLIED
------------------------------ ---------
/arch/2_1254_997386564.dbf NO
/arch/2_1254_997386564.dbf YES#
以下日志已应用(展示的为未应用的状态):
tips:重新应用的日志有两个状态,实际以数据库日志和MRP进程状态为准
NAME APPLIED
------------------------------ ---------
/arch/1_1091_997386564.dbf NO
/arch/2_1119_997386564.dbf NO
/arch/1_1092_997386564.dbf NO
/arch/1_1093_997386564.dbf NO
/arch/2_1124_997386564.dbf NO
/arch/1_1156_997386564.dbf NO
/arch/1_1158_997386564.dbf NO
/arch/1_1159_997386564.dbf NO
/arch/1_1160_997386564.dbf NO
/arch/1_1161_997386564.dbf NO
/arch/2_1190_997386564.dbf NO
/arch/1_1163_997386564.dbf NO
/arch/1_1166_997386564.dbf NO
/arch/2_1228_997386564.dbf NO
/arch/2_1243_997386564.dbf NO
/arch/2_1245_997386564.dbf NO
/arch/1_1223_997386564.dbf NO
/arch/2_1254_997386564.dbf NO
/arch/1_1228_997386564.dbf NO
/arch/1_1203_997386564.dbfNO
#查看进程状态
select process,status,thread#,sequence# from v$managed_standby order by 3,1;
PROCESS STATUS THREAD# SEQUENCE#
--------- ------------ ---------- ----------
RFS IDLE 0 0
RFS IDLE 0 0
RFS IDLE 0 0
ARCH CLOSING 1 1457
ARCH CLOSING 1 1073
MRP0 APPLYING_LOG 1 1095
RFS WRITING 1 1458
ARCH CLOSING 2 1485
ARCH CLOSING 2 1483
RFS WRITING 2 1486
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