Memory Notification: Heap size nnnnK exceeds notification threshold (51200K)
Memory Notification: Library Cache Object loaded into SGA
Heap size 106084K exceeds notification threshold (51200K)
KGL object name …
ORACLE 9i-23ai
数据库oracle
know more about dbms_job fails
When job execution fails, the SNP processes attempts to rerun the job one minute later. If this run fails, another attempt is made in two minutes and another in four minutes. The job queue doubles the retry interval until it exceeds the normal execution interval..
sqlplus autotrace sql Statistics value全部为0
0 db block gets
0 consistent gets
0 physical reads
0 redo size
0 bytes sent via SQL*Net to client
0 bytes received via SQL*Net from client
0 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
62 rows processed
ora-600 [kcbgcur_9] internal error when ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
SQL> ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kcbgcur_9], [8388681], [25],
[100663296], [33554432], [], [], []
How to stop or kill datapump jobs?(停止数据泵job)
3 begin
4 hdl := dbms_datapump.attach(‘SYS_IMPORT_FULL_03′,’SYSTEM’);
5 DBMS_DATAPUMP.STOP_JOB(hdl,1,0);
6 end;
迁移controlfile 从文件系统到ASM
alter system set control_files=’+DATA/ANBOB/CONTROLFILE/current.260.793738081′,’+DATA/ANBOB/CONTROLFILE/current.261.793738087′,’+DATA/ANBOB/CONTROLFILE/current.276.793737555′ scope=spfile;
计算controlfile size，dd 迁移raw device中的controlfile
Control Seq=53995=0xd2eb, File size=594=0x252
File Number=0, Blksiz=16384, File Type=1 CONTROL
Logical block number 1 (header block)
Script: 查看datafile 的HWM,估算resize 最小size
数据文件如果有2g，先create一个大表占了1G,后来建了个几M小表，再把大表drop 掉加purge选项，向把数据文件resize到100M，往往会失败，在磁盘紧张的情况下，想知道数据文件最小值是多少？就要计算datafile HWM
How to list all events?（oracle事件列表）
其中有两个编号段比较特殊
1，错误编号-10000到-10999 不是真正的错误，是保留下来用于debug使用
2，错误编号-20000到-20999是自定义异常，错误信息最大2048B
hanganalyze 分析 dbms_ijob.broken无效的问题
HANG ANALYSIS:
==============
Open chains found:
Chain 1 : :
<0/1777/32406/0x5275fca0/13913/SQL*Net message from client>
— <0/1477/37455/0x5275e4e8/16043/enq: TX - row lock contention>
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
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