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如何解决Ora-00600 4194错误
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作者：eygle | 【转载请注】|【云和恩墨 领先的zData数据库一体机 | zCloud PaaS云管平台 | SQM SQL审核平台 | ZDBM 数据库备份一体机】
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启动数据库出现Ora-00600 4194错误，观察alert文件，主要错误日志如下:

Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner/bdump/conner_smon_17113.trc:
ORA-00600: internal error code, arguments: [4194], [43], [46], [], [], [], [], []
Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner/udump/conner_ora_17121.trc:
ORA-00600: internal error code, arguments: [4194], [45], [44], [], [], [], [], [] 

4194错误通常说明UNDO段出现问题,最好的办法是通过备份进行恢复,如果没有备份,那么可以通过特殊的初始化参数进行强制启动,本文就Oracle的隐含参数进行恢复说明(由于实际情况可能各不相同，进行测试前请先行备份)，仅供参考。

首先确定当前回滚段名称，这可以从alert文件中获得:

Sat Jan 21 13:55:21 2006
Undo Segment 11 Onlined
Undo Segment 12 Onlined
Undo Segment 13 Onlined
Successfully onlined Undo Tablespace 16. 

对应的AUM (auto undo management) 下的回滚段名称为: 

'_SYSSMU11$','_SYSSMU12$','_SYSSMU13$'

 修改init<sid>.ora参数文件，使用Oracle隐含参数_corrupted_rollback_segments将回滚段标记为损坏，此时启动数据库，Oracle会跳过对于这些回滚段的相关操作，强制启动数据库。

._corrupted_rollback_segments='_SYSSMU11$','_SYSSMU12$','_SYSSMU13$'

使用init<sid>.ora参数文件启动数据库: 

[oracle@jumper dbs]$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on Sat Jan 21 13:56:47 2006
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to an idle instance.
SQL> startup pfile=initconner.ora
ORACLE instance started.
Total System Global Area   97588504 bytes
Fixed Size                   451864 bytes
Variable Size              33554432 bytes
Database Buffers           62914560 bytes
Redo Buffers                 667648 bytes
Database mounted.
Database opened. 

此时数据库正常Open。

观察alert文件可以获得如下信息: 

Sat Jan 21 13:57:03 2006
SMON: enabling tx recovery
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:03 2006
Database Characterset is ZHS16GBK
Sat Jan 21 13:57:03 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:04 2006
Created Undo Segment _SYSSMU1$
Undo Segment 1 Onlined
Completed: ALTER DATABASE OPEN
aSat Jan 21 14:02:11 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery 

此时可以重新创建新的UNDO表空间，删除出现问题的表空间，修改参数文件，由参数文件生成新的spfile，重新启动数据库： 

SQL> create undo tablespace undotbs1
  2  datafile '/opt/oracle/oradata/conner/undotbs1.dbf' size 10M;
Tablespace created.
SQL> alter system set undo_tablespace=undotbs1;
System altered.

SQL> drop tablespace undotbs2;
Tablespace dropped. 

此时的alert文件记录的: 

Sat Jan 21 14:03:29 2006
create undo tablespace undotbs1
datafile '/opt/oracle/oradata/conner/undotbs1.dbf' size 10M
Sat Jan 21 14:03:29 2006
Created Undo Segment _SYSSMU2$
Created Undo Segment _SYSSMU3$
Created Undo Segment _SYSSMU4$
Created Undo Segment _SYSSMU5$
Created Undo Segment _SYSSMU6$
Created Undo Segment _SYSSMU7$
Created Undo Segment _SYSSMU8$
Created Undo Segment _SYSSMU9$
Created Undo Segment _SYSSMU10$
Created Undo Segment _SYSSMU14$
Starting control autobackup
Control autobackup written to DISK device
        handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-00'
Completed: create undo tablespace undotbs1
datafile '/opt/ora
Sat Jan 21 14:03:43 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1.
Undo Segment 1 Offlined
Undo Tablespace 16 successfully switched out.
Sat Jan 21 14:03:43 2006
ALTER SYSTEM SET undo_tablespace='UNDOTBS1' SCOPE=MEMORY;
Sat Jan 21 14:07:18 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 14:08:06 2006
drop tablespace undotbs2
Sat Jan 21 14:08:07 2006
Starting control autobackup
Control autobackup written to DISK device
        handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-01'
Completed: drop tablespace undotbs2 

修改参数文件，变更undo表空间，并取消_corrupted_rollback_segments设置: 

*.undo_tablespace='UNDOTBS1' 

由参数文件创建spfile文件。 

SQL> create spfile from pfile;
File created.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area   97588504 bytes
Fixed Size                   451864 bytes
Variable Size              33554432 bytes
Database Buffers           62914560 bytes
Redo Buffers                 667648 bytes
Database mounted.
Database opened. 

重起数据库，观察alert文件:

Sat Jan 21 14:08:36 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1. 

此时数据库恢复正常，通常建议立即全库exp，然后重新建库，再imp恢复数据库。

最后附上几次启动数据库的日志供参考:

Starting ORACLE instance (normal)
Sat Jan 21 13:55:15 2006
WARNING: EINVAL creating segment of size 0x0000000007400000
fix shm parameters in /etc/system or equivalent
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 2
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.4.0.
System parameters with non-default values:
  _latch_class_1           = 10000
  _latch_classes           = 98:1
  processes                = 150
  timed_statistics         = FALSE
  event                    = 
  shared_pool_size         = 20971520
  large_pool_size          = 16777216
  java_pool_size           = 0
  _kghdsidx_count          = 1
  control_files            = /opt/oracle/oradata/conner/control01.ctl, 
        /opt/oracle/oradata/conner/control02.ctl, 
         /opt/oracle/oradata/conner/control03.ctl
  db_block_size            = 8192
  db_2k_cache_size         = 20971520
  db_cache_size            = 41943040
  compatible               = 9.2.0.0.0
  log_archive_start        = TRUE
  log_archive_dest         = /opt/oracle/oradata/conner/archive
  _disable_logging         = TRUE
  db_files                 = 8
  db_file_multiblock_read_count= 16
  fast_start_mttr_target   = 300
  _allow_resetlogs_corruption= TRUE
  _corrupted_rollback_segments= 
  undo_management          = AUTO
  undo_tablespace          = UNDOTBS2
  undo_retention           = 10800
  remote_login_passwordfile= EXCLUSIVE
  db_domain                = 
  global_names             = TRUE
  instance_name            = conner
  utl_file_dir             = /tmp
  job_queue_processes      = 0
  _system_trig_enabled     = FALSE
  hash_join_enabled        = TRUE
  background_dump_dest     = /opt/oracle/admin/conner/bdump
  user_dump_dest           = /opt/oracle/admin/conner/udump
  core_dump_dest           = /opt/oracle/admin/conner/cdump
  audit_trail              = DB
  sort_area_size           = 524288
  db_name                  = conner
  open_cursors             = 300
  sql_trace                = FALSE
  optimizer_mode           = CHOOSE
  star_transformation_enabled= FALSE
  optimizer_index_cost_adj = 10000
  query_rewrite_enabled    = FALSE
  _left_nested_loops_random= FALSE
  _use_nosegment_indexes   = FALSE
  pga_aggregate_target     = 20480000
  aq_tm_processes          = 0
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
Sat Jan 21 13:55:16 2006
ARCH: STARTING ARCH PROCESSES
ARC0 started with pid=8
ARC0: Archival started
Sat Jan 21 13:55:16 2006
ARCH: STARTING ARCH PROCESSES COMPLETE
Sat Jan 21 13:55:16 2006
ARC0: Thread not mounted
ARC1 started with pid=9
ARC1: Archival started
ARC1: Thread not mounted
Sat Jan 21 13:55:16 2006
ALTER DATABASE   MOUNT
Sat Jan 21 13:55:20 2006
Successful mount of redo thread 1, with mount id 3192212932.
Sat Jan 21 13:55:20 2006
Database mounted in Exclusive Mode.
Completed: ALTER DATABASE   MOUNT
Sat Jan 21 13:55:20 2006
ALTER DATABASE OPEN
Sat Jan 21 13:55:20 2006
Beginning crash recovery of 1 threads
Sat Jan 21 13:55:20 2006
Started first pass scan
Sat Jan 21 13:55:21 2006
Completed first pass scan
 0 redo blocks read, 0 data blocks need recovery
Sat Jan 21 13:55:21 2006
Started recovery at
 Thread 1: logseq 42, block 3, scn 0.0
Recovery of Online Redo Log: Thread 1 Group 1 Seq 42 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo01.log
Sat Jan 21 13:55:21 2006
Completed redo application
Sat Jan 21 13:55:21 2006
Ended recovery at
 Thread 1: logseq 42, block 3, scn 2073.1734548
 0 data blocks read, 0 data blocks written, 0 redo blocks read
Crash recovery completed successfully
Sat Jan 21 13:55:21 2006
Thread 1 advanced to log sequence 43
Thread 1 opened at log sequence 43
  Current log# 3 seq# 43 mem# 0: /opt/oracle/oradata/conner/redo03.log
Successful open of redo thread 1.
Sat Jan 21 13:55:21 2006
ARC0: Media recovery disabled
Sat Jan 21 13:55:21 2006
SMON: enabling cache recovery
Sat Jan 21 13:55:21 2006
Undo Segment 11 Onlined
Undo Segment 12 Onlined
Undo Segment 13 Onlined
Successfully onlined Undo Tablespace 16.
Sat Jan 21 13:55:21 2006
SMON: enabling tx recovery
Sat Jan 21 13:55:21 2006
Database Characterset is ZHS16GBK
Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner/bdump/conner_smon_17113.trc:
ORA-00600: internal error code, arguments: [4194], [43], [46], [], [], [], [], []
Sat Jan 21 13:55:21 2006
Errors in file /opt/oracle/admin/conner/udump/conner_ora_17121.trc:
ORA-00600: internal error code, arguments: [4194], [45], [44], [], [], [], [], []
Sat Jan 21 13:55:26 2006
Recovery of Online Redo Log: Thread 1 Group 3 Seq 43 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo03.log
Sat Jan 21 13:55:26 2006
Recovery of Online Redo Log: Thread 1 Group 3 Seq 43 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo03.log
Sat Jan 21 13:55:26 2006
Recovery of Online Redo Log: Thread 1 Group 3 Seq 43 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo03.log
Sat Jan 21 13:55:26 2006
Recovery of Online Redo Log: Thread 1 Group 3 Seq 43 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo03.log
Sat Jan 21 13:55:26 2006
Errors in file /opt/oracle/admin/conner/bdump/conner_smon_17113.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [43], [46], [], [], [], [], []
Sat Jan 21 13:55:26 2006
Errors in file /opt/oracle/admin/conner/udump/conner_ora_17121.trc:
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [45], [44], [], [], [], [], []
Error 607 happened during db open, shutting down database
USER: terminating instance due to error 607
Instance terminated by USER, pid = 17121
ORA-1092 signalled during: ALTER DATABASE OPEN...
Sat Jan 21 13:56:58 2006
Starting ORACLE instance (normal)
Sat Jan 21 13:56:58 2006
WARNING: EINVAL creating segment of size 0x0000000006400000
fix shm parameters in /etc/system or equivalent
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 2
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.4.0.
System parameters with non-default values:
  _latch_class_1           = 10000
  _latch_classes           = 98:1
  processes                = 150
  timed_statistics         = FALSE
  shared_pool_size         = 20971520
  large_pool_size          = 0
  java_pool_size           = 0
  _kghdsidx_count          = 1
  control_files            = /opt/oracle/oradata/conner/control01.ctl, 
    /opt/oracle/oradata/conner/control02.ctl, 
    /opt/oracle/oradata/conner/control03.ctl
  db_block_size            = 8192
  db_2k_cache_size         = 20971520
  db_cache_size            = 41943040
  compatible               = 9.2.0.0.0
  log_archive_start        = TRUE
  log_archive_dest         = /opt/oracle/oradata/conner/archive
  _disable_logging         = TRUE
  db_files                 = 8
  db_file_multiblock_read_count= 16
  fast_start_mttr_target   = 300
  _allow_resetlogs_corruption= TRUE
  _corrupted_rollback_segments= _SYSSMU11$, _SYSSMU12$, _SYSSMU13$
  undo_management          = AUTO
  undo_tablespace          = UNDOTBS2
  undo_retention           = 10800
  remote_login_passwordfile= EXCLUSIVE
  db_domain                = 
  global_names             = TRUE
  instance_name            = conner
  utl_file_dir             = /tmp
  job_queue_processes      = 0
  _system_trig_enabled     = FALSE
  hash_join_enabled        = TRUE
  background_dump_dest     = /opt/oracle/admin/conner/bdump
  user_dump_dest           = /opt/oracle/admin/conner/udump
  core_dump_dest           = /opt/oracle/admin/conner/cdump
  audit_trail              = DB
  sort_area_size           = 524288
  db_name                  = conner
  open_cursors             = 300
  sql_trace                = FALSE
  optimizer_mode           = CHOOSE
  star_transformation_enabled= FALSE
  optimizer_index_cost_adj = 10000
  query_rewrite_enabled    = FALSE
  _left_nested_loops_random= FALSE
  _use_nosegment_indexes   = FALSE
  pga_aggregate_target     = 20480000
  aq_tm_processes          = 0
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
Sat Jan 21 13:56:58 2006
ARCH: STARTING ARCH PROCESSES
RECO started with pid=7
ARC0 started with pid=8
ARC0: Archival started
ARC1 started with pid=9
Sat Jan 21 13:56:58 2006
ARCH: STARTING ARCH PROCESSES COMPLETE
Sat Jan 21 13:56:58 2006
ARC1: Archival started
ARC1: Thread not mounted
Sat Jan 21 13:56:58 2006
ARC0: Thread not mounted
Sat Jan 21 13:56:58 2006
ALTER DATABASE   MOUNT
Sat Jan 21 13:57:03 2006
Successful mount of redo thread 1, with mount id 3192214826.
Sat Jan 21 13:57:03 2006
Database mounted in Exclusive Mode.
Completed: ALTER DATABASE   MOUNT
Sat Jan 21 13:57:03 2006
ALTER DATABASE OPEN
Sat Jan 21 13:57:03 2006
Beginning crash recovery of 1 threads
Sat Jan 21 13:57:03 2006
Started first pass scan
Sat Jan 21 13:57:03 2006
Completed first pass scan
 0 redo blocks read, 0 data blocks need recovery
Sat Jan 21 13:57:03 2006
Started recovery at
 Thread 1: logseq 44, block 2, scn 2073.1754552
Recovery of Online Redo Log: Thread 1 Group 4 Seq 44 Reading mem 0
  Mem# 0 errs 0: /opt/oracle/oradata/conner/redo04.log
Sat Jan 21 13:57:03 2006
Completed redo application
Sat Jan 21 13:57:03 2006
Ended recovery at
 Thread 1: logseq 44, block 2, scn 2073.1774553
 0 data blocks read, 0 data blocks written, 0 redo blocks read
Crash recovery completed successfully
Sat Jan 21 13:57:03 2006
Thread 1 advanced to log sequence 45
Thread 1 opened at log sequence 45
  Current log# 2 seq# 45 mem# 0: /opt/oracle/oradata/conner/redo02.log
Successful open of redo thread 1.
Sat Jan 21 13:57:03 2006
ARC0: Media recovery disabled
Sat Jan 21 13:57:03 2006
SMON: enabling cache recovery
Sat Jan 21 13:57:03 2006
Successfully onlined Undo Tablespace 16.
Sat Jan 21 13:57:03 2006
SMON: enabling tx recovery
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:03 2006
Database Characterset is ZHS16GBK
Sat Jan 21 13:57:03 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 13:57:04 2006
Created Undo Segment _SYSSMU1$
Undo Segment 1 Onlined
Completed: ALTER DATABASE OPEN
aSat Jan 21 14:02:11 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 14:03:29 2006
create undo tablespace undotbs1
datafile '/opt/oracle/oradata/conner/undotbs1.dbf' size 10M
Sat Jan 21 14:03:29 2006
Created Undo Segment _SYSSMU2$
Created Undo Segment _SYSSMU3$
Created Undo Segment _SYSSMU4$
Created Undo Segment _SYSSMU5$
Created Undo Segment _SYSSMU6$
Created Undo Segment _SYSSMU7$
Created Undo Segment _SYSSMU8$
Created Undo Segment _SYSSMU9$
Created Undo Segment _SYSSMU10$
Created Undo Segment _SYSSMU14$
Starting control autobackup
Control autobackup written to DISK device
        handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-00'
Completed: create undo tablespace undotbs1
datafile '/opt/ora
Sat Jan 21 14:03:43 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1.
Undo Segment 1 Offlined
Undo Tablespace 16 successfully switched out.
Sat Jan 21 14:03:43 2006
ALTER SYSTEM SET undo_tablespace='UNDOTBS1' SCOPE=MEMORY;
Sat Jan 21 14:07:18 2006
SMON: about to recover undo segment 11
SMON: mark undo segment 11 as needs recovery
SMON: about to recover undo segment 12
SMON: mark undo segment 12 as needs recovery
SMON: about to recover undo segment 13
SMON: mark undo segment 13 as needs recovery
Sat Jan 21 14:08:06 2006
drop tablespace undotbs2
Sat Jan 21 14:08:07 2006
Starting control autobackup
Control autobackup written to DISK device
        handle '/opt/oracle/product/9.2.0/dbs/c-3152029224-20060121-01'
Completed: drop tablespace undotbs2
Sat Jan 21 14:08:23 2006
Shutting down instance: further logons disabled
Shutting down instance (immediate)
License high water mark = 1
Sat Jan 21 14:08:23 2006
ALTER DATABASE CLOSE NORMAL
Sat Jan 21 14:08:23 2006
SMON: disabling tx recovery
SMON: disabling cache recovery
Sat Jan 21 14:08:23 2006
Shutting down archive processes
Archiving is disabled
Sat Jan 21 14:08:23 2006
ARCH shutting down
ARC0: Archival stopped
Sat Jan 21 14:08:23 2006
ARCH shutting down
ARC1: Archival stopped
Sat Jan 21 14:08:23 2006
Thread 1 closed at log sequence 45
Successful close of redo thread 1.
Sat Jan 21 14:08:23 2006
Completed: ALTER DATABASE CLOSE NORMAL
Sat Jan 21 14:08:23 2006
ALTER DATABASE DISMOUNT
Completed: ALTER DATABASE DISMOUNT
ARCH: Archiving is disabled
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
ARCH: Archiving is disabled
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
Sat Jan 21 14:08:30 2006
Starting ORACLE instance (normal)
Sat Jan 21 14:08:31 2006
WARNING: EINVAL creating segment of size 0x0000000006400000
fix shm parameters in /etc/system or equivalent
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 2
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.4.0.
System parameters with non-default values:
  _latch_class_1           = 10000
  _latch_classes           = 98:1
  processes                = 150
  timed_statistics         = FALSE
  shared_pool_size         = 20971520
  large_pool_size          = 0
  java_pool_size           = 0
  _kghdsidx_count          = 1
  control_files            = /opt/oracle/oradata/conner/control01.ctl, 
        /opt/oracle/oradata/conner/control02.ctl, 
        /opt/oracle/oradata/conner/control03.ctl
  db_block_size            = 8192
  db_2k_cache_size         = 20971520
  db_cache_size            = 41943040
  compatible               = 9.2.0.0.0
  log_archive_start        = TRUE
  log_archive_dest         = /opt/oracle/oradata/conner/archive
  _disable_logging         = TRUE
  db_files                 = 8
  db_file_multiblock_read_count= 16
  fast_start_mttr_target   = 300
  _allow_resetlogs_corruption= TRUE
  _corrupted_rollback_segments= 
  undo_management          = AUTO
  undo_tablespace          = UNDOTBS1
  undo_retention           = 10800
  remote_login_passwordfile= EXCLUSIVE
  db_domain                = 
  global_names             = TRUE
  instance_name            = conner
  utl_file_dir             = /tmp
  job_queue_processes      = 0
  _system_trig_enabled     = FALSE
  hash_join_enabled        = TRUE
  background_dump_dest     = /opt/oracle/admin/conner/bdump
  user_dump_dest           = /opt/oracle/admin/conner/udump
  core_dump_dest           = /opt/oracle/admin/conner/cdump
  audit_trail              = DB
  sort_area_size           = 524288
  db_name                  = conner
  open_cursors             = 300
  sql_trace                = FALSE
  optimizer_mode           = CHOOSE
  star_transformation_enabled= FALSE
  optimizer_index_cost_adj = 10000
  query_rewrite_enabled    = FALSE
  _left_nested_loops_random= FALSE
  _use_nosegment_indexes   = FALSE
  pga_aggregate_target     = 20480000
  aq_tm_processes          = 0
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
Sat Jan 21 14:08:31 2006
ARCH: STARTING ARCH PROCESSES
ARC0 started with pid=8
ARC0: Archival started
Sat Jan 21 14:08:31 2006
ARCH: STARTING ARCH PROCESSES COMPLETE
Sat Jan 21 14:08:31 2006
ARC0: Thread not mounted
ARC1 started with pid=9
ARC1: Archival started
ARC1: Thread not mounted
Sat Jan 21 14:08:31 2006
ALTER DATABASE   MOUNT
Sat Jan 21 14:08:36 2006
Successful mount of redo thread 1, with mount id 3192249311.
Sat Jan 21 14:08:36 2006
Database mounted in Exclusive Mode.
Completed: ALTER DATABASE   MOUNT
Sat Jan 21 14:08:36 2006
ALTER DATABASE OPEN
Sat Jan 21 14:08:36 2006
Thread 1 opened at log sequence 45
  Current log# 2 seq# 45 mem# 0: /opt/oracle/oradata/conner/redo02.log
Successful open of redo thread 1.
Sat Jan 21 14:08:36 2006
ARC1: Media recovery disabled
Sat Jan 21 14:08:36 2006
SMON: enabling cache recovery
Sat Jan 21 14:08:36 2006
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Undo Segment 14 Onlined
Successfully onlined Undo Tablespace 1.
Sat Jan 21 14:08:36 2006
SMON: enabling tx recovery
Sat Jan 21 14:08:36 2006
Database Characterset is ZHS16GBK
Completed: ALTER DATABASE OPEN 

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           初始化参数-LOG_PARALLELISM

By eygle on 2006-02-13 18:37 | Comments (6) | Backup&Recovery | 675 |

6 Comments

sail2000 | March 13, 2006 3:56 PM

如果会滚段有活动事务呢？
旧的回滚段表空间不能删除，怎么办呢？

yanyan | July 14, 2008 4:10 PM

此时数据库恢复正常，通常建议立即全库exp，然后重新建库，再imp恢复数据库。

这个操作的意义是什么?

eygle | July 14, 2008 5:20 PM

因为数据库中已经出现了不一致。

安佰胜 | November 26, 2009 5:16 PM

怎么老是用你写的东西解决问题呢？呵呵

jargon | December 17, 2009 3:50 PM

非常感谢您的文章！！

marven | March 8, 2010 4:17 PM

无意间又学到了，谢谢你的分享。

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