情况说明:
系统：SUN Solaris8
数据库版本:9203
问题描述：工程人员报告，数据库在重新启动时无法正常启动.检查发现UNDO表空间丢失.
问题诊断及解决过程如下:
1. 登陆系统检查alert.log文件
检查alert.log文件是通常是我们诊断数据库问题的第一步
SunOS 5.8
login: root
Password:
Last login: Thu Apr 1 11:39:16 from 10.123.7.162
Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001
You have new mail.
# su - oracle
bash-2.03$ cd $ORACLE_BASE/admin/*/bdump
bash-2.03$ vi *.log
"alert_gzhs.log" 7438 lines, 283262 characters
Sat Feb 7 20:30:06 2004
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 3
Using log_archive_dest parameter default value
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.3.0.
System parameters with non-default values:
processes = 150
timed_statistics = TRUE
shared_pool_size = 1157627904
large_pool_size = 16777216
java_pool_size = 637534208
control_files = /u01/oradata/gzhs/control01.ctl,
/u02/oradata/gzhs/control02.ctl,
/u03/oradata/gzhs/control03.ctl
db_block_size = 8192
db_cache_size = 2516582400
compatible = 9.2.0.0.0
log_archive_start = TRUE
log_archive_dest_1 = LOCATION=/u06/oradata/gzhs/arch
log_archive_format = %t_%s.dbf
db_file_multiblock_read_count= 16
fast_start_mttr_target = 300
undo_management = AUTO
undo_tablespace = UNDOTBS1
undo_retention = 10800
remote_login_passwordfile= EXCLUSIVE
db_domain =
instance_name = gzhs
dispatchers = (PROTOCOL=TCP) (SERVICE=gzhsXDB)
job_queue_processes = 10
hash_join_enabled = TRUE
background_dump_dest = /oracle/admin/gzhs/bdump
user_dump_dest = /oracle/admin/gzhs/udump
core_dump_dest = /oracle/admin/gzhs/cdump
sort_area_size = 524288
db_name = gzhs
open_cursors = 300
star_transformation_enabled= FALSE
query_rewrite_enabled = FALSE
pga_aggregate_target = 838860800
aq_tm_processes = 1
PMON started with pid=2
DBW0 started with pid=3
LGWR started with pid=4
CKPT started with pid=5
SMON started with pid=6
"alert_gzhs.log" 7438 lines, 283262 characters
USER: terminating instance due to error 30012
Instance terminated by USER, pid = 26433
ORA-1092 signalled during: ALTER DATABASE OPEN...
Thu Apr 1 11:11:08 2004
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 3
Using log_archive_dest parameter default value
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.3.0.
System parameters with non-default values:
processes = 150
timed_statistics = TRUE
shared_pool_size = 1157627904
large_pool_size = 16777216
java_pool_size = 637534208
control_files = /u01/oradata/gzhs/control01.ctl, /u02/oradata/gzhs/control02.ctl, /u03/oradata/gzhs/control03.ctl
db_block_size = 8192
db_cache_size = 2516582400
compatible = 9.2.0.0.0
log_archive_start = TRUE
log_archive_dest_1 = LOCATION=/u06/oradata/gzhs/arch
log_archive_format = %t_%s.dbf
db_file_multiblock_read_count= 16
fast_start_mttr_target = 300
undo_management = AUTO
undo_tablespace = UNDOTBS1
undo_retention = 10800
remote_login_passwordfile= EXCLUSIVE
db_domain =
instance_name = gzhs
dispatchers = (PROTOCOL=TCP) (SERVICE=gzhsXDB)
job_queue_processes = 10
hash_join_enabled = TRUE
background_dump_dest = /oracle/admin/gzhs/bdump
user_dump_dest = /oracle/admin/gzhs/udump
core_dump_dest = /oracle/admin/gzhs/cdump
sort_area_size = 524288
db_name = gzhs
open_cursors = 300
star_transformation_enabled= FALSE
query_rewrite_enabled = FALSE
pga_aggregate_target = 838860800
aq_tm_processes = 1
PMON started with pid=2
DBW0 started with pid=3
LGWR started with pid=4
CKPT started with pid=5
SMON started with pid=6
RECO started with pid=7
CJQ0 started with pid=8
Thu Apr 1 11:11:13 2004
starting up 1 shared server(s) ...
QMN0 started with pid=9
Thu Apr 1 11:11:13 2004
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
ARCH: STARTING ARCH PROCESSES
ARC0 started with pid=12
ARC0: Archival started
ARC1 started with pid=13
Thu Apr 1 11:11:13 2004
ARCH: STARTING ARCH PROCESSES COMPLETE
Thu Apr 1 11:11:13 2004
ARC0: Thread not mounted
Thu Apr 1 11:11:13 2004
ARC1: Archival started
ARC1: Thread not mounted
Thu Apr 1 11:11:14 2004
ALTER DATABASE MOUNT
Thu Apr 1 11:11:18 2004
Successful mount of redo thread 1, with mount id 1088380178.
Thu Apr 1 11:11:18 2004
Database mounted in Exclusive Mode.
Completed: ALTER DATABASE MOUNT
Thu Apr 1 11:11:27 2004
alter database open
Thu Apr 1 11:11:27 2004
Beginning crash recovery of 1 threads
Thu Apr 1 11:11:27 2004
Started first pass scan
Thu Apr 1 11:11:28 2004
Completed first pass scan
1 redo blocks read, 0 data blocks need recovery
Thu Apr 1 11:11:28 2004
Started recovery at
Thread 1: logseq 177, block 2, scn 0.33104793
Recovery of Online Redo Log: Thread 1 Group 3 Seq 177 Reading mem 0
Mem# 0 errs 0: /u01/oradata/gzhs/redo03.log
Thu Apr 1 11:11:28 2004
Completed redo application
Thu Apr 1 11:11:28 2004
Ended recovery at
Thread 1: logseq 177, block 3, scn 0.33124794
0 data blocks read, 0 data blocks written, 1 redo blocks read
Crash recovery completed successfully
Thu Apr 1 11:11:28 2004
LGWR: Primary database is in CLUSTER CONSISTENT mode
Thread 1 advanced to log sequence 178
Thread 1 opened at log sequence 178
Current log# 1 seq# 178 mem# 0: /u01/oradata/gzhs/redo01.log
Successful open of redo thread 1.
Thu Apr 1 11:11:28 2004
ARC0: Evaluating archive log 3 thread 1 sequence 177
Thu Apr 1 11:11:28 2004
ARC0: Beginning to archive log 3 thread 1 sequence 177
Creating archive destination LOG_ARCHIVE_DEST_1: '/u06/oradata/gzhs/arch/1_177.dbf'
Thu Apr 1 11:11:28 2004
SMON: enabling cache recovery
ARC0: Completed archiving log 3 thread 1 sequence 177
Thu Apr 1 11:11:28 2004
Errors in file /oracle/admin/gzhs/udump/gzhs_ora_27781.trc:
ORA-30012: \263\267\317\373\261\355\277\325\274\344 'UNDOTBS1' \262\273\264\346\324\332\273\362\300\340\320\315\262\273\325\375\310267
Thu Apr 1 11:11:28 2004
Error 30012 happened during db open, shutting down database
USER: terminating instance due to error 30012
Instance terminated by USER, pid = 27781
ORA-1092 signalled during: alter database open...
:q
在警报日志末尾显示了数据库在Open状态因为错误而异常终止.
2. 尝试重新启动数据库
bash-2.03$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.3.0 - Production on 星期四 4月 1 11:43:52 2004
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
已连接到空闲例程。
SQL startup
ORACLE 例程已经启动。
Total System Global Area 4364148184 bytes
Fixed Size 736728 bytes
Variable Size 1845493760 bytes
