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Oracle数据库启动时报错：ksuapc:ORA-1033 foreground process starts before PMON，分析原因由于启动时有前台进程连接导致。

1.在11.2.0.1数据库中启动出现错误

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

Picked latch-free SCN scheme 3

Using LOG_ARCHIVE_DEST_1 parameter default value as USE_DB_RECOVERY_FILE_DEST

Autotune of undo retention is turned on.

IMODE=BR

ILAT =27

LICENSE_MAX_USERS = 0

SYS auditing is disabled

Starting up:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options.

Using parameter settings in server-side spfile /opt/oracle/product/11.2.0/dbhome_1/dbs/spfileora11bak.ora

System parameters with non-default values:

processes                = 150

nls_language             = "SIMPLIFIED CHINESE"

nls_territory            = "CHINA"

sga_target               = 1536M

control_files            = "/opt/oracle/oradata/ora11bak/control01.ctl"

control_files            = "/opt/oracle/flash_recovery_area/ora11bak/control02.ctl"

db_block_size            = 8192

compatible               = "11.2.0.0.0"

db_recovery_file_dest    = "/opt/oracle/flash_recovery_area"

db_recovery_file_dest_size= 3882M

undo_tablespace          = "UNDOTBS1"

remote_login_passwordfile= "EXCLUSIVE"

db_domain                = ""

dispatchers              = "(PROTOCOL=TCP) (SERVICE=ora11bakXDB)"

audit_file_dest          = "/opt/oracle/admin/ora11bak/adump"

audit_trail              = "DB"

db_name                  = "ora11bak"

open_cursors             = 300

pga_aggregate_target     = 1595M

diagnostic_dest          = "/opt/oracle"

Fri May 17 05:03:15 2013

ksuapc : ORA-1033 foreground process starts before PMON

Fri May 17 05:03:15 2013

ksuapc : ORA-1033 foreground process starts before PMON

Fri May 17 05:03:16 2013

ksuapc : ORA-1033 foreground process starts before PMON

Fri May 17 05:03:16 2013

ksuapc : ORA-1033 foreground process starts before PMON

Fri May 17 05:03:16 2013

ksuapc : ORA-1033 foreground process starts before PMON

Fri May 17 05:03:16 2013

ksuapc : ORA-1033 foreground process starts before PMON

…………

2.Oracle研究中心关于ora1033原因分析

该错误的原因是数据库在启动过程中有前台进程连接数据库导致,该现象是数据库bug 8991997,该bug影响版本为:11.2.0.1/11.1.0.7,在11.2.0.1.1开始修复

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