探索_disable_logging的损坏作用_结论2

SQL> alter system set "_disable_logging"=true scope=spfile;

System altered.

Elapsed: 00:00:00.00

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> startup

ORACLE instance started.

Total System Global Area 403772836 bytes

Fixed Size 452004 bytes

Variable Size 369098752 bytes

Database Buffers 33554432 bytes

Redo Buffers 667648 bytes

Database mounted.

ORA-03113: end-of-file on communication channel

SQL>

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检查日志：

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Thu Dec 1 09:31:26 2005

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

SCN scheme 2

Using log_archive_dest parameter default value

LICENSE_MAX_USERS = 0

SYS auditing is disabled

Starting up ORACLE RDBMS Version: 9.2.0.6.0.

System parameters with non-default values:

processes = 150

timed_statistics = TRUE

shared_pool_size = 167772160

sga_max_size = 403772836

large_pool_size = 16777216

java_pool_size = 167772160

control_files = /oracle/oradata/TSMISC02/control01.ctl, /oracle/oradata/TSMISC02/control02.ctl, /oracle/oradata/TSMISC02/control03.ctl

db_block_size = 8192

db_cache_size = 33554432

compatible = 9.2.0.0.0

log_archive_start = TRUE

log_archive_dest_1 = LOCATION=/oracle/oradata/TSMISC02/archive

log_archive_format = %t_%s.dbf

_disable_logging = TRUE

db_file_multiblock_read_count= 16

fast_start_mttr_target = 300

undo_management = AUTO

undo_tablespace = UNDOTBS2

undo_retention = 10800

O7_DICTIONARY_ACCESSIBILITY= FALSE

remote_login_passwordfile= EXCLUSIVE

db_domain =

instance_name = TSMISC02

dispatchers = (PROTOCOL=TCP) (SERVICE=TSMISC02XDB)

job_queue_processes = 10

hash_join_enabled = TRUE

background_dump_dest = /oracle/admin/TSMISC02/bdump

user_dump_dest = /oracle/admin/TSMISC02/udump

core_dump_dest = /oracle/admin/TSMISC02/cdump

sort_area_size = 524288

db_name = TSMISC02

open_cursors = 300

star_transformation_enabled= FALSE

query_rewrite_enabled = FALSE

pga_aggregate_target = 25165824

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

QMN0 started with pid=9

Thu Dec 1 09:31:27 2005

starting up 1 shared server(s) ...

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 Dec 1 09:31:28 2005

ARCH: STARTING ARCH PROCESSES COMPLETE

Thu Dec 1 09:31:28 2005

ARC1: Archival started

ARC1: Thread not mounted

Thu Dec 1 09:31:28 2005

ARC0: Thread not mounted

Thu Dec 1 09:31:28 2005

ALTER DATABASE MOUNT

Thu Dec 1 09:31:32 2005

Successful mount of redo thread 1, with mount id 1740736752

Thu Dec 1 09:31:32 2005

Database mounted in Exclusive Mode.

Completed: ALTER DATABASE MOUNT

Thu Dec 1 09:31:32 2005

ALTER DATABASE OPEN

Thu Dec 1 09:31:32 2005

LGWR: Primary database is in CLUSTER CONSISTENT mode

Thread 1 opened at log sequence 280

Current log# 1 seq# 280 mem# 0: /oracle/oradata/TSMISC02/redo01.log

Successful open of redo thread 1

Thu Dec 1 09:31:32 2005

Errors in file /oracle/admin/TSMISC02/bdump/tsmisc02_lgwr_3103.trc:

ORA-07445: exception encountered: core dump [kcrfwcint()+1625] [SIGFPE] [Integer divide by zero] [0x828739D] [] []

Thu Dec 1 09:31:34 2005

Errors in file /oracle/admin/TSMISC02/bdump/tsmisc02_pmon_3099.trc:

ORA-00470: LGWR process terminated with error

Thu Dec 1 09:31:34 2005

PMON: terminating instance due to error 470

Instance terminated by PMON, pid = 3099

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[oracle@ts01 bdump]$ ll tsmisc02_lgwr_3103.trc

-rw-r----- 1 oracle oinstall 716212 Dec 1 09:31 tsmisc02_lgwr_3103.trc

[oracle@ts01 bdump]$ ll tsmisc02_pmon_3099.trc

-rw-r----- 1 oracle oinstall 625 Dec 1 09:31 tsmisc02_pmon_3099.trc

[oracle@ts01 bdump]$

[oracle@ts01 bdump]$ cat tsmisc02_pmon_3099.trc

/oracle/admin/TSMISC02/bdump/tsmisc02_pmon_3099.trc

Oracle9i Enterprise Edition Release 9.2.0.6.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.6.0 - Production

ORACLE_HOME = /oracle/product/920

System name: Linux

Node name: ts01

Release: 2.4.21-4.EL

Version: #1 Fri Oct 3 18:13:58 EDT 2003

Machine: i686

Instance name: TSMISC02

Redo thread mounted by this instance: 1

Oracle process number: 2

Unix process pid: 3099, image: oracle@ts01 (PMON)

*** SESSION ID:(1.1) 2005-12-01 09:31:34.198

error 470 detected in background process

ORA-00470: LGWR process terminated with error

[oracle@ts01 bdump]$

///////////////////////////////////////////////////////////

SQL> shutdown immediate;

ORA-24324: service handle not initialized

ORA-01041: internal error. hostdef extension doesn't exist

SQL> exit

Disconnected from Oracle9i Enterprise Edition Release 9.2.0.6.0 - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release 9.2.0.6.0 - Production

[oracle@ts01 oracle]$ ipcs

------ Shared Memory Segments --------

key shmid owner perms bytes nattch status

------ Semaphore Arrays --------

key semid owner perms nsems

------ Message Queues --------

key msqid owner perms used-bytes messages

[oracle@ts01 oracle]$ ps -ef | grep oracle

root 2620 2482 0 08:10 pts/0 00:00:00 su - oracle

oracle 2621 2620 0 08:10 pts/0 00:00:00 -bash

root 2666 2528 0 08:25 pts/1 00:00:00 su - oracle

oracle 2667 2666 0 08:25 pts/1 00:00:05 -bash

oracle 3095 2667 0 08:56 pts/1 00:00:00 tail -f alert_TSMISC02.log

root 3172 3126 0 09:33 pts/2 00:00:00 su - oracle

oracle 3173 3172 0 09:33 pts/2 00:00:00 -bash

oracle 3233 2621 0 09:57 pts/0 00:00:00 ps -ef

oracle 3234 2621 0 09:57 pts/0 00:00:00 grep oracle

[oracle@ts01 oracle]$

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察看metalink:

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Bookmark Go to End

Doc ID: Note:342195.1

Subject: ORA-7445 (kcrfwcint)

Type: REFERENCE

Status: PUBLISHED

Content Type: TEXT/X-HTML

Creation Date: 23-NOV-2005

Last Revision Date: 25-NOV-2005

Note: For additional ORA-7445 related information please read Note 211909.1

PURPOSE:

This article provides information on one or more bugs that are

known to result in the given ORA-7445 error.

SUGGESTIONS:

If the Known Issues section below does not help in terms of identifying

a solution, please submit the trace files and alert.log to Oracle

Support Services for further analysis.

Known Issues:

Bug# 3868748 See Note 3868748.8

Instance crashes when trying to use "_disable_logging"=true

Fixed: 10.2.0.1

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修正方法：

不要使用 _disable_logging=TRUE

修改pfile，将 _disable_logging 改为fase：

*._disable_logging=false

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[oracle@ts01 oracle]$ cat a.ora| grep _disable_logging

*._disable_logging=false

#*._disable_logging=TRUE

[oracle@ts01 oracle]$

[oracle@ts01 oracle]$ sqlplus '/ as sysdba'

SQL*Plus: Release 9.2.0.6.0 - Production on Mon Dec 12 13:01:03 2005

Connected to an idle instance.

SQL> startup pfile=a.ora

ORACLE instance started.

Total System Global Area 403772836 bytes

Fixed Size 452004 bytes

Variable Size 369098752 bytes

Database Buffers 33554432 bytes

Redo Buffers 667648 bytes

Database mounted.

Database opened.

SQL>

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