源端hp-unix+oracle10g-r204-rac,目标端redhat+oracle10g。expdp错误ORA-39029
源端hp-unix+Oracle10g-r204-rac,目标端RedHat+oracle10g。
在目标端使用network_link导出,报错如下:
rm /opt/oradir/expdp.dmp
expdp \"sys/oracle as sysdba\" directory=oradir network_link=portal95 schemas=rbt dumpfile=expdp.dmp logfile=expdp.log exclude=statistic
ORA-39014: One or more workers have prematurely exited.
ORA-39029: worker 2 with process name "DW02" prematurely terminated
ORA-31671: Worker process DW02 had an unhandled exception.
ORA-12801: error signaled in parallel query server
ORA-29913: error in executing ODCIEXTTABLEPOPULATE callout
ORA-29400: data cartridge error
KUP-04038: internal error: kupax-meta1
ORA-06512: at "SYS.ORACLE_DATAPUMP", line 78
ORA-06512: at "SYS.KUPW$WORKER", line 1345
ORA-06512: at line 2
Job "SYS"."SYS_EXPORT_SCHEMA_05" stopped due to fatal error at 13:53:52
alert.log
首先看到的错误是:
Thu May 24 13:51:34 2012
The value (30) of MAXTRANS parameter ignored.
kupprdp: master process DM00 started with pid=38, OS id=5089
to execute - SYS.KUPM$MCP.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS', 'KUPC$C_1_20120524135135', 'KUPC$S_1_20120524135135', 0);
kupprdp: worker process DW01 started with worker id=1, pid=39, OS id=5091
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW02 started with worker id=2, pid=40, OS id=5096
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW03 started with worker id=3, pid=42, OS id=5098
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW04 started with worker id=4, pid=43, OS id=5100
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW05 started with worker id=5, pid=44, OS id=5102
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW06 started with worker id=6, pid=45, OS id=5104
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW07 started with worker id=7, pid=46, OS id=5106
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
kupprdp: worker process DW08 started with worker id=8, pid=47, OS id=5108
to execute - SYS.KUPW$WORKER.MAIN('SYS_EXPORT_SCHEMA_05', 'SYS');
Thu May 24 13:52:15 2012
经查,该错误是备份时创建备份主表(Master Table)产生的(使用类似CREATE TABLE
继续往下看:
Memory Notification: Library Cache Object loaded into SGA
Heap size 2048K exceeds notification threshold (2048K)
KGL object name :SYS.KUPC$C_1_20120524135135

How to effectively monitor MySQL performance? Use tools such as mysqladmin, SHOWGLOBALSTATUS, PerconaMonitoring and Management (PMM), and MySQL EnterpriseMonitor. 1. Use mysqladmin to view the number of connections. 2. Use SHOWGLOBALSTATUS to view the query number. 3.PMM provides detailed performance data and graphical interface. 4.MySQLEnterpriseMonitor provides rich monitoring functions and alarm mechanisms.

The difference between MySQL and SQLServer is: 1) MySQL is open source and suitable for web and embedded systems, 2) SQLServer is a commercial product of Microsoft and is suitable for enterprise-level applications. There are significant differences between the two in storage engine, performance optimization and application scenarios. When choosing, you need to consider project size and future scalability.

In enterprise-level application scenarios that require high availability, advanced security and good integration, SQLServer should be chosen instead of MySQL. 1) SQLServer provides enterprise-level features such as high availability and advanced security. 2) It is closely integrated with Microsoft ecosystems such as VisualStudio and PowerBI. 3) SQLServer performs excellent in performance optimization and supports memory-optimized tables and column storage indexes.

MySQLmanagescharactersetsandcollationsbyusingUTF-8asthedefault,allowingconfigurationatdatabase,table,andcolumnlevels,andrequiringcarefulalignmenttoavoidmismatches.1)Setdefaultcharactersetandcollationforadatabase.2)Configurecharactersetandcollationfor

A MySQL trigger is an automatically executed stored procedure associated with a table that is used to perform a series of operations when a specific data operation is performed. 1) Trigger definition and function: used for data verification, logging, etc. 2) Working principle: It is divided into BEFORE and AFTER, and supports row-level triggering. 3) Example of use: Can be used to record salary changes or update inventory. 4) Debugging skills: Use SHOWTRIGGERS and SHOWCREATETRIGGER commands. 5) Performance optimization: Avoid complex operations, use indexes, and manage transactions.

The steps to create and manage user accounts in MySQL are as follows: 1. Create a user: Use CREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password'; 2. Assign permissions: Use GRANTSELECT, INSERT, UPDATEONmydatabase.TO'newuser'@'localhost'; 3. Fix permission error: Use REVOKEALLPRIVILEGESONmydatabase.FROM'newuser'@'localhost'; then reassign permissions; 4. Optimization permissions: Use SHOWGRA

MySQL is suitable for rapid development and small and medium-sized applications, while Oracle is suitable for large enterprises and high availability needs. 1) MySQL is open source and easy to use, suitable for web applications and small and medium-sized enterprises. 2) Oracle is powerful and suitable for large enterprises and government agencies. 3) MySQL supports a variety of storage engines, and Oracle provides rich enterprise-level functions.

The disadvantages of MySQL compared to other relational databases include: 1. Performance issues: You may encounter bottlenecks when processing large-scale data, and PostgreSQL performs better in complex queries and big data processing. 2. Scalability: The horizontal scaling ability is not as good as Google Spanner and Amazon Aurora. 3. Functional limitations: Not as good as PostgreSQL and Oracle in advanced functions, some functions require more custom code and maintenance.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Zend Studio 13.0.1
Powerful PHP integrated development environment

SublimeText3 Chinese version
Chinese version, very easy to use

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Mac version
God-level code editing software (SublimeText3)