ora-600 [3708] [910] internal error issue

SQL> shutdown immediate
ORA-00600: internal error code, arguments: [3708], [910], [], [], [], [], [], []

Basically this error is raised because LGWR timmed out.

ORA-00600 [keltnfy-ldmInit] internal error issue

ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], []

oracle 用UTL_SMTP 发预警邮件

对于每个数据库不同级别的错误可以做不同的处理,如短信、邮件等

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About Columns Order(列先后顺序)

有时总是忽略在列的顺序带来的性能开销,还有列的null值字段的位置,想理解这个问题要首先程序列数据是如何在block上存储的,并且是如何定位的?

about parallel

目前机器通常都是多core CPU,单个进程未开并行只会在一个core上运行,未完全发挥多core的特性,有时在统计查询,DML,DDL时需要开启并行提高效率

配置11Gr2 physical dataguard,11203 RAC 到single instance

primary db是2nodes 11203 RAC,physical standby是11203 的single instance,Primary db有用到ASM存储文件,Single instance只用local filesystem

impdp network_link 在11201中导入分区表时行记录为0 rows?

. . imported “WEEJAR”.”HASH_OBJ”:”SYS_P23″ 0 rows
. . imported “WEEJAR”.”HASH_OBJ”:”SYS_P24″ 0 rows
. . imported “WEEJAR”.”HASH_OBJ”:”SYS_P21″ 0 rows
. . imported “WEEJAR”.”HASH_OBJ”:”SYS_P22″ 0 rows

remove a node from 11g r2 rac on OEL5(删除节点)

[grid@znode1 bin]$ cluvfy stage -post nodedel -n racnode3 -verbose
Performing post-checks for node removal
Checking CRS integrity…
Clusterware version consistency passed
The Oracle Clusterware is healthy on node “znode2”
The Oracle Clusterware is healthy on node “znode1”
CRS integrity check passed
Result:
Node removal check passed
Post-check for node removal was successful.

10g r2 audit_trail db_extended 的错误提示

ORA-00096: invalid value db,extended for parameter audit_trail, must be from among extended, xml, db_extended, false, true, none, os, db

Configuring ACFS in ORACLE 11G R2(配置ACFS)

ACFS storage management design that extends Oracle Automatic Storage Management (Oracle ASM) technology to support all application data

Oracle 11g R2 Add a node (增加RAC节点)

1,配置OS环境
2,安装GRID (clusterware)到第三个节点
3,安装ORACLE RDBMS SOFTWARE到第三个节点
4, 增加oracle instance 到第三个节点

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ORA-01078: failure in processing system parameters when srvctl start instance

[grid@znode1 ~]$ srvctl start instance -d rac -i rac1
PRCR-1013 : Failed to start resource ora.rac.db
PRCR-1064 : Failed to start resource ora.rac.db on node znode1
CRS-5017: The resource action “ora.rac.db start” encountered the following error:
ORA-01078: failure in processing system parameters

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11203 RAC addNode.sh 遇PRKC-PRCF-2015 PRCF-2023

PRCF-2023 : The following contents are not transferred as they are non-readable.
Files:
1) /u01/app/11.2.0/grid/OCRDUMPFILE
2) /u01/app/11.2.0/grid/locr.lst

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修改11g r2 RAC SCAN IP

SCAN简化了客户端连接的配置,只需指定SCAN Name在客户端的tnsnames.ora,不需要知道每个节点的vip就可以实现负载均衡
每个节点上的pmon会经常的发送本节点的负载情况到scan listener…

11gR2 RAC ASM 启动疑惑

存储asm instance spfile到asm,听上去很奇怪,启动自身,首先要解决的几个问题
1,asm diskgroup 没mount,如何读spfile?
2,在oracle_home/dbs下没有参数文件,如何知道spfile在哪?
3,不知道spfile,怎么知道的asm_diskstring?

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11G R2 Oracle Local Registry(OLR)

从oracle 11R2版本起在网格计算领域引进了新特性,其中之一就是grid Oracle Local Registry(OLR),做为oracle clusterware的一部分,有些人喜欢叫Oracle Local Repository,因为这repositery记录了本地资源的信息和配置..

move rdbms from local file(no-ASM) to ASM instance

one asm instance can support multiple rdbms instances,and it is possible to run more than one asm instance to which the rdbms instance could connect,this potential many-to-many relationship btween the instance types is resolved by the cluster services.

about modify unique constraint

ERROR at line 2:
ORA-02299: cannot validate (ICME.UK_PROJECT_SCORE) – duplicate keys found

oracle ASM on LVM (linux卷管理),配置LVM

LVM在后期因先前指定的路径空间不够时调整起来很方便,也可以就用于ASM,但是并不推荐ASM安装在LVM之上,因为LVM的功能在ASM上已存在。

oracle 11g BaseLine(基线)指定application中不可修改sql的执行计划

11G前有sql profile、outline可以稳定执行计划,但有些文档中指出有时outline指定了但也有要能走新的执行计划,所以11g的BASELINE是OUTLINE的改进版。一般应用在版本升级或稳定特定SQL的执行计划,也可以修改指定SQL的执行计划,当OUTLINE与BASELINE有同时指定时BASELINE有优先权。