oracleRAC无备份情况恢复ocr和olr-mysql教程-PHP中文网

首页

数据库

mysql教程

oracleRAC无备份情况恢复ocr和olr

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 07, 2016 pm 02:54 PM

备份恢复情况

最大的悲剧莫过于数据库坏了备份没了。让我想起了前几年流行的一句话：最大的悲剧是人活着，钱没了。总之备份重于一切。情景介绍：在11G中ocr的asm磁盘组被用户不小心删了且所有备份都误删，olr呢也损坏了。至此悲剧重演。恢复过程：(其实就是使用root.

　　最大的悲剧莫过于数据库坏了备份没了。让我想起了前几年流行的一句话：“最大的悲剧是人活着，钱没了”。总之备份重于一切。

　　情景介绍：

　　在11G中ocr的asm磁盘组被用户不小心删了且所有备份都误删，olr呢也损坏了。至此悲剧重演。

　　恢复过程：(其实就是使用root.sh重建ocr的过程，重建之后可能需要重新注册相关资源如listener or database 实例等!)

　　1、清空所有节点cluster配置信息：(11G中存在rootcrs.sh脚本，该脚本默认存在于$GRID_HOME/crs/install)。

　　注，该脚本需要在root下执行，否则会有错误提示

[grid@rac-one install]$ ./rootcrs.pl

You must be logged in as root to run this script.

2014-04-01 17:08:12: Not running as authorized user

Insufficient privileges to execute this script.

root or administrative privileges needed to run the script.

　　了解该脚本的功能可以查看-help。如升级、回退、重新配置等待》

[root@rac-two install]# ./rootcrs.pl -help

Usage:

rootcrs.pl [-verbose] [-upgrade [-force] | -patch]

[-paramfile ]

[-deconfig [-deinstall] [-keepdg] [-force] [-lastnode]]

[-downgrade -oldcrshome -version [-force] [-lastnode]]

[-unlock [-crshome ] [-nocrsstop]]

[-init]

Options:

-verbose Run this script in verbose mode

-upgrade Oracle HA is being upgraded from previous version

-patch Oracle HA is being upgraded to a patch version

-paramfile Complete path of file specifying HA parameter values

-lastnode Force the node this script is executing on to be considered

as the last node of deconfiguration or downgrade, and perform

actions associated with deconfiguring or downgrading the

last node

-downgrade Downgrade the clusterware

-version For use with downgrade; special handling is required if

downgrading to 9i. This is the old crs version in the format

A.B.C.D.E (e.g 11.1.0.6.0).

-deconfig Remove Oracle Clusterware to allow it to be uninstalled or reinstalled

-force Force the execution of steps in delete or dwongrade that cannot

be verified to be safe

-deinstall Reset the permissions on CRS home during de-configuration

-keepdg Keep existing diskgroups during de-configuration

-unlock Unlock CRS home

-crshome Complete path of crs home. Use with unlock option

-oldcrshome For use with downgrade. Complete path of the old crs home

-nocrsstop used with unlock option to reset permissions on an inactive grid home

-init Reset the permissions of all files and directories under CRS home

If neither -upgrade nor -patch is supplied, a new install is performed

To see the full manpage for this program, execute:

perldoc rootcrs.pl

[root@rac-two install]#

　　在root下清除所有节点cluster 信息：

　　节点2：

[grid@rac-one install]$ su

Password:

[root@rac-one install]# ./rootcrs.pl -deconfig -force

Using configuration parameter file: ./crsconfig_params

Network exists: 1/192.168.4.0/255.255.255.0/eth0, type static

VIP exists: /rac-one-vip/192.168.4.113/192.168.4.0/255.255.255.0/eth0, hosting node rac-one

VIP exists: /rac-two-vip/192.168.4.114/192.168.4.0/255.255.255.0/eth0, hosting node rac-two

GSD exists

ONS exists: Local port 6100, remote port 6200, EM port 2016

CRS-2673: Attempting to stop 'ora.registry.acfs' on 'rac-one'

CRS-2677: Stop of 'ora.registry.acfs' on 'rac-one' succeeded

CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac-one'

CRS-2673: Attempting to stop 'ora.crsd' on 'rac-one'

CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac-one'

CRS-2673: Attempting to stop 'ora.oc4j' on 'rac-one'

CRS-2673: Attempting to stop 'ora.GIDG.dg' on 'rac-one'

CRS-2673: Attempting to stop 'ora.DATADG.dg' on 'rac-one'

CRS-2677: Stop of 'ora.DATADG.dg' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.GIDG.dg' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.asm' on 'rac-one'

CRS-2677: Stop of 'ora.oc4j' on 'rac-one' succeeded

CRS-2672: Attempting to start 'ora.oc4j' on 'rac-two'

CRS-2677: Stop of 'ora.asm' on 'rac-one' succeeded

CRS-2676: Start of 'ora.oc4j' on 'rac-two' succeeded

CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac-one' has completed

CRS-2677: Stop of 'ora.crsd' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.crf' on 'rac-one'

CRS-2673: Attempting to stop 'ora.ctssd' on 'rac-one'

CRS-2673: Attempting to stop 'ora.evmd' on 'rac-one'

CRS-2673: Attempting to stop 'ora.asm' on 'rac-one'

CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'rac-one'

CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac-one'

CRS-2677: Stop of 'ora.crf' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.evmd' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.mdnsd' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.ctssd' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.asm' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'rac-one'

CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.cssd' on 'rac-one'

CRS-2677: Stop of 'ora.cssd' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.gipcd' on 'rac-one'

CRS-2677: Stop of 'ora.drivers.acfs' on 'rac-one' succeeded

CRS-2677: Stop of 'ora.gipcd' on 'rac-one' succeeded

CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac-one'

CRS-2677: Stop of 'ora.gpnpd' on 'rac-one' succeeded

CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac-one' has completed

CRS-4133: Oracle High Availability Services has been stopped.

Removing Trace File Analyzer

Successfully deconfigured Oracle clusterware stack on this node

[root@rac-one install]#

　　节点1，因为我的RAC是双节点的，那么在清除最后一个使用lastnode参数：

[grid@rac-two crs]$ cd install/

[grid@rac-two install]$ su

Password:

[root@rac-two install]# ./rootcrs.pl -deconfig -force -lastnode

Using configuration parameter file: ./crsconfig_params

CRS resources for listeners are still configured

Network exists: 1/192.168.4.0/255.255.255.0/eth0, type static

VIP exists: /rac-two-vip/192.168.4.114/192.168.4.0/255.255.255.0/eth0, hosting node rac-two

GSD exists

ONS exists: Local port 6100, remote port 6200, EM port 2016

CRS-2673: Attempting to stop 'ora.registry.acfs' on 'rac-two'

CRS-2677: Stop of 'ora.registry.acfs' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.crsd' on 'rac-two'

CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac-two'

CRS-2673: Attempting to stop 'ora.oc4j' on 'rac-two'

CRS-2673: Attempting to stop 'ora.GIDG.dg' on 'rac-two'

CRS-2673: Attempting to stop 'ora.DATADG.dg' on 'rac-two'

CRS-2677: Stop of 'ora.DATADG.dg' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.oc4j' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.GIDG.dg' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.asm' on 'rac-two'

CRS-2677: Stop of 'ora.asm' on 'rac-two' succeeded

CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac-two' has completed

CRS-2677: Stop of 'ora.crsd' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.ctssd' on 'rac-two'

CRS-2673: Attempting to stop 'ora.evmd' on 'rac-two'

CRS-2673: Attempting to stop 'ora.asm' on 'rac-two'

CRS-2677: Stop of 'ora.evmd' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.asm' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'rac-two'

CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.ctssd' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.cssd' on 'rac-two'

CRS-2677: Stop of 'ora.cssd' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac-two'

CRS-2676: Start of 'ora.cssdmonitor' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.cssd' on 'rac-two'

CRS-2672: Attempting to start 'ora.diskmon' on 'rac-two'

CRS-2676: Start of 'ora.diskmon' on 'rac-two' succeeded

CRS-2676: Start of 'ora.cssd' on 'rac-two' succeeded

CRS-4611: Successful deletion of voting disk +GIDG.

ASM de-configuration trace file location: /tmp/asmcadc_clean2014-04-01_05-14-52-PM.log

ASM Clean Configuration START

ASM Clean Configuration END

ASM with SID +ASM1 deleted successfully. Check /tmp/asmcadc_clean2014-04-01_05-14-52-PM.log for details.

CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac-two'

CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac-two'

CRS-2673: Attempting to stop 'ora.ctssd' on 'rac-two'

CRS-2673: Attempting to stop 'ora.asm' on 'rac-two'

CRS-2677: Stop of 'ora.mdnsd' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.ctssd' on 'rac-two' succeeded

CRS-2677: Stop of 'ora.asm' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'rac-two'

CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.cssd' on 'rac-two'

CRS-2677: Stop of 'ora.cssd' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.crf' on 'rac-two'

CRS-2677: Stop of 'ora.crf' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.gipcd' on 'rac-two'

CRS-2677: Stop of 'ora.gipcd' on 'rac-two' succeeded

CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac-two'

CRS-2677: Stop of 'ora.gpnpd' on 'rac-two' succeeded

CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac-two' has completed

CRS-4133: Oracle High Availability Services has been stopped.

Removing Trace File Analyzer

Successfully deconfigured Oracle clusterware stack on this node

[root@rac-two install]#

　　二、重建ocr和olr,使用root.sh脚本完成重建，其实这就是在安装RAC中执行的脚本，默认位置为：$GRID_HOME/;

　　eg：

　　节点1：

[root@rac-two grid]# ./root.sh

Performing root user operation for Oracle 11g

The following environment variables are set as:

ORACLE_OWNER= grid

ORACLE_HOME= /u01/app/11.2.0/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:

The contents of "dbhome" have not changed. No need to overwrite.

The contents of "oraenv" have not changed. No need to overwrite.

The contents of "coraenv" have not changed. No need to overwrite.

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params

User ignored Prerequisites during installation

Installing Trace File Analyzer

CRS-2672: Attempting to start 'ora.mdnsd' on 'rac-two'

CRS-2676: Start of 'ora.mdnsd' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.gpnpd' on 'rac-two'

CRS-2676: Start of 'ora.gpnpd' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac-two'

CRS-2672: Attempting to start 'ora.gipcd' on 'rac-two'

CRS-2676: Start of 'ora.cssdmonitor' on 'rac-two' succeeded

CRS-2676: Start of 'ora.gipcd' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.cssd' on 'rac-two'

CRS-2672: Attempting to start 'ora.diskmon' on 'rac-two'

CRS-2676: Start of 'ora.diskmon' on 'rac-two' succeeded

CRS-2676: Start of 'ora.cssd' on 'rac-two' succeeded

ASM created and started successfully.

Disk Group GIDG created successfully.

clscfg: -install mode specified

Successfully accumulated necessary OCR keys.

Creating OCR keys for user 'root', privgrp 'root'..

Operation successful.

Successful addition of voting disk 498646ba39604f86bf697c9748a67697.

Successful addition of voting disk 2e1bd16f9e6d4f36bf93550dc8268725.

Successful addition of voting disk 3fbd31a0b2634feabfa1115a504cbbe6.

Successfully replaced voting disk group with +GIDG.

CRS-4266: Voting file(s) successfully replaced

## STATE File Universal Id File Name Disk group

-- ----- ----------------- --------- ---------

1. ONLINE 498646ba39604f86bf697c9748a67697 (/dev/asm-diske) [GIDG]

2. ONLINE 2e1bd16f9e6d4f36bf93550dc8268725 (/dev/asm-diskd) [GIDG]

3. ONLINE 3fbd31a0b2634feabfa1115a504cbbe6 (/dev/asm-diskf) [GIDG]

Located 3 voting disk(s).

CRS-2672: Attempting to start 'ora.asm' on 'rac-two'

CRS-2676: Start of 'ora.asm' on 'rac-two' succeeded

CRS-2672: Attempting to start 'ora.GIDG.dg' on 'rac-two'

CRS-2676: Start of 'ora.GIDG.dg' on 'rac-two' succeeded

Preparing packages for installation...

cvuqdisk-1.0.9-1

Configure Oracle Grid Infrastructure for a Cluster ... succeeded

[root@rac-two grid]#

　　另外注意，如果asm磁盘损坏了那么需要重新修复磁盘，然后会自动重新创建之前的diskgroup.

　　至此olr和ocr创建成功

　　节点2：

[root@rac-one grid]# ./root.sh

Performing root user operation for Oracle 11g

The following environment variables are set as:

ORACLE_OWNER= grid

ORACLE_HOME= /u01/app/11.2.0/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:

The contents of "dbhome" have not changed. No need to overwrite.

The contents of "oraenv" have not changed. No need to overwrite.

The contents of "coraenv" have not changed. No need to overwrite.

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params

User ignored Prerequisites during installation

Installing Trace File Analyzer

OLR initialization - successful

Adding Clusterware entries to upstart

CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node rac-two, number 1, and is terminating

An active cluster was found during exclusive startup, restarting to join the cluster

Preparing packages for installation...

cvuqdisk-1.0.9-1

Configure Oracle Grid Infrastructure for a Cluster ... succeeded

[root@rac-one grid]#

　　3、检查资源信息：

　　现在呢开始使用srvctl和crsctl工具，这是oracle RAC 经常使用的，另外还有一个工具是oifcfg配置网卡信息等。不在介绍了。

[root@rac-one bin]# ./crsctl check crs

CRS-4638: Oracle High Availability Services is online

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

[root@rac-one bin]# ./crsctl stat res -t

--------------------------------------------------------------------------------

声明

本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系admin@php.cn

您什么时候应该使用复合索引与多个单列索引？Apr 11, 2025 am 12:06 AM

在数据库优化中，应根据查询需求选择索引策略：1.当查询涉及多个列且条件顺序固定时，使用复合索引；2.当查询涉及多个列但条件顺序不固定时，使用多个单列索引。复合索引适用于优化多列查询，单列索引则适合单列查询。

如何识别和优化MySQL中的慢速查询？（慢查询日志，performance_schema）Apr 10, 2025 am 09:36 AM

要优化MySQL慢查询，需使用slowquerylog和performance_schema：1.启用slowquerylog并设置阈值，记录慢查询；2.利用performance_schema分析查询执行细节，找出性能瓶颈并优化。

MySQL和SQL：开发人员的基本技能Apr 10, 2025 am 09:30 AM

MySQL和SQL是开发者必备技能。1.MySQL是开源的关系型数据库管理系统，SQL是用于管理和操作数据库的标准语言。2.MySQL通过高效的数据存储和检索功能支持多种存储引擎，SQL通过简单语句完成复杂数据操作。3.使用示例包括基本查询和高级查询，如按条件过滤和排序。4.常见错误包括语法错误和性能问题，可通过检查SQL语句和使用EXPLAIN命令优化。5.性能优化技巧包括使用索引、避免全表扫描、优化JOIN操作和提升代码可读性。

描述MySQL异步主奴隶复制过程。Apr 10, 2025 am 09:30 AM

MySQL异步主从复制通过binlog实现数据同步，提升读性能和高可用性。1)主服务器记录变更到binlog；2)从服务器通过I/O线程读取binlog；3)从服务器的SQL线程应用binlog同步数据。

mysql：简单的概念，用于轻松学习Apr 10, 2025 am 09:29 AM

MySQL是一个开源的关系型数据库管理系统。1）创建数据库和表：使用CREATEDATABASE和CREATETABLE命令。2）基本操作：INSERT、UPDATE、DELETE和SELECT。3）高级操作：JOIN、子查询和事务处理。4）调试技巧：检查语法、数据类型和权限。5）优化建议：使用索引、避免SELECT*和使用事务。

MySQL：数据库的用户友好介绍Apr 10, 2025 am 09:27 AM

MySQL的安装和基本操作包括：1.下载并安装MySQL，设置根用户密码；2.使用SQL命令创建数据库和表，如CREATEDATABASE和CREATETABLE；3.执行CRUD操作，使用INSERT,SELECT,UPDATE,DELETE命令；4.创建索引和存储过程以优化性能和实现复杂逻辑。通过这些步骤，你可以从零开始构建和管理MySQL数据库。

InnoDB缓冲池如何工作，为什么对性能至关重要？Apr 09, 2025 am 12:12 AM

InnoDBBufferPool通过将数据和索引页加载到内存中来提升MySQL数据库的性能。1)数据页加载到BufferPool中，减少磁盘I/O。2)脏页被标记并定期刷新到磁盘。3)LRU算法管理数据页淘汰。4)预读机制提前加载可能需要的数据页。

MySQL：初学者的数据管理易用性Apr 09, 2025 am 12:07 AM

MySQL适合初学者使用，因为它安装简单、功能强大且易于管理数据。1.安装和配置简单，适用于多种操作系统。2.支持基本操作如创建数据库和表、插入、查询、更新和删除数据。3.提供高级功能如JOIN操作和子查询。4.可以通过索引、查询优化和分表分区来提升性能。5.支持备份、恢复和安全措施，确保数据的安全和一致性。

See all articles