一.什么是Health Monitor ChecksHealth Monitor Checks能够发现文件损坏,物理.逻辑块损坏,undo.redo损坏,数据字典损坏等等.Health Monitor Checks产生结果报告,它包含了解决问题的办法. -----oracle另外一个坏块检查工具DBVERIFY 详见我的这篇文章:Oracle坏块验证工具:DBVERIFYhttp://blog.chinaunix.net/uid-23284114-id-3687810.html----- Hea…

About Health Monitor Checks Health Monitor checks (also known as checkers, health checks, or checks) examine various layers and components of the database. Health checks detect file corruptions, physical and logical block corruptions, undo and redo c…

1. Health Monitor简介    Health Monitor是11g里新增加的特性,用于数据库的各层和各个组建的诊断检查.例如可以检查:文件损坏.物理逻辑块损坏.redo和undo故障.数据字典损坏等.HM可以根据检查的结果产生一个报表,并提供解决问题的建议.   1.1 运行方式:    1). Reactive         Fault diagnosability infrastructure能自动响应严重的错误(critical error).     2). Manua…

Cluster Health Monitor(以下简称CHM)是一个Oracle提供的工具,用来自动收集操作系统的资源(CPU.内存.SWAP.进程.I/O以及网络等)的使用情况.CHM会每秒收集一次数据.这些系统资源数据对于诊断集群系统的节点重启.Hang.实例驱逐(Eviction).性能问题等是非常有帮助的.另外,用户可以使用CHM来及早发现一些系统负载高.内存异常等问题,从而避免产生更严重的问题. CHM默认安装在以下版本: 11.2.0.2 及更高版本的 Oracle Grid Inf…

本文是原创文章.转载请注明出处:http://blog.csdn.net/msdnchina/article/details/44336789 近期遇到一个案例,是将一个表空间offline之后,alert日志中不断的报错,最初该报错是在11.2.0.2被发现的.后来我在11.2.0.4的linux x86-64 bit下试验了一下,也发现了同样的现象. 例如以下是我的实验步骤: [oracle@rhel63single ~]$ sqlplus / as sysdba SQL*Plus: Rel…

Data Recovery Advisor The health monitor and the ADR The capabilities and limitations of DRA using the DRA Complete recovery from data file loss with RMAN Recovery in noarchive log mode Recovery in archive log mode Recovery from loss of noncritical f…

目录 文章目录 目录 创建 Listener 创建 Pool 创建 Member CalculateDelta HandleNetworkDeltas AmphoraePostNetworkPlug ListenersUpdate 创建 L7policy & L7rule & Health Monitor 创建 Listener 我们知道只有为 loadbalancer 创建 listener 时才会启动 haproxy 服务进程. 从 UML 可知,执行指令 openstack load…

The BIG-IP HTTP health monitor attempts to mabtch the configured Receive String against the HTTP response data encapsulated within the TCP payload. The HTTP response data includes the status line, the response headers, and the HTTP payload. As a resu…

RAC: Frequently Asked Questions [ID 220970.1]   修改时间 13-JAN-2011     类型 FAQ     状态 PUBLISHED   Applies to: Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.2.0.1 - Release: 9.2 to 11.2 Purpose Frequently Asked Questions for Real Applicatio…

select event,count(1) from gv$session group by event order by 2;exec dbms_workload_repository.create_snapshot;select 'alter system kill session '''||sid||','||serial#||''';' from v$session where event='latch free'; SET LINESIZE 200SET NEWPAGE NONECOL…