在前一篇博客中我们提到了如何启动或关闭Oracle的归档(ARCHIVELOG)模式(http://www.linuxidc.com/Linux/2014-10/108120.htm),
v$recovery_file_dest; v$flash_recovery_area_usage; v$flash_recovery_area_usage; v$version;
归档日志文件目录、最大值(已经设定为20G)、当前使用值
可以看到ARCHIVED LOG的使用率是3.84%,这是因为我已经删除掉归档日志文件了。在没有删除归档日志之前是99.46这样打的数字,表明我们的归档日志已经使用了大部分的空间。
所以进入rman程序删除归档日志
rman target sys/pass@prjdb crosscheck archivelog all; ; expired archivelog all;--删除过期日志
深层分析
后来我想这样手动删除也不是个办法总得让系统自动删除。后来就做了数据库备份脚本。执行的备份策略如下:
因为我没有设定归档日志的有效期,所以一档完成增量备份,那么之前的所有归档日志都会被删除,相当于只保留一天的归档日志。在执行这个备份策略以后,发现还是会出现ORA-00257这样的错误。这个时候已经不是简单删除归档日志的问题了,因为当前的归档日志目录连一天的归档日志都发布下。所以考虑扩大归档日志目录,参考:
SQL;---设置使用空间大小(),20GB System altered SQL> show parameter db_recovery_file_dest;---查看归档日志路径限额
此时归档日志目录最大值就变成了20G。按照这样的设定再次重启oralce。
实例最近在进行历史数据导入的工作。要往我的数据库当中导入2G的历史记录,插入记录有几百万条。此时数据库处于归档模式,对于每一个插入操作都会记录到归档日志当中去。在执行这个历史导入操作后3个小时,归档日志就写满了。此时我的问题就来了,如果归档日志写满的,我们的历史导入操作还能正常进行吗?是否还能往数据库当中insert数据。在跟公司DBA请教一番以后得到答复,如果处于归档模式,,并且归档日志写满,那么我的历史数据导入操作会block中,直到我清空归档日志以后导入工作才能再进行。
在CentOS 6.4下安装Oracle 11gR2(x64)
Oracle 11gR2 在VMWare虚拟机中安装步骤
Debian 下 安装 Oracle 11g XE R2
本文永久更新链接地址:

This article addresses MySQL's "unable to open shared library" error. The issue stems from MySQL's inability to locate necessary shared libraries (.so/.dll files). Solutions involve verifying library installation via the system's package m

This article explores optimizing MySQL memory usage in Docker. It discusses monitoring techniques (Docker stats, Performance Schema, external tools) and configuration strategies. These include Docker memory limits, swapping, and cgroups, alongside

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

This article compares installing MySQL on Linux directly versus using Podman containers, with/without phpMyAdmin. It details installation steps for each method, emphasizing Podman's advantages in isolation, portability, and reproducibility, but also

This article provides a comprehensive overview of SQLite, a self-contained, serverless relational database. It details SQLite's advantages (simplicity, portability, ease of use) and disadvantages (concurrency limitations, scalability challenges). C

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

This guide demonstrates installing and managing multiple MySQL versions on macOS using Homebrew. It emphasizes using Homebrew to isolate installations, preventing conflicts. The article details installation, starting/stopping services, and best pra

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver Mac version
Visual web development tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Notepad++7.3.1
Easy-to-use and free code editor

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

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