All of the following data dictionary tables have a LAST_ANALYZED column (replace * with USER/ALL/DBA as appropriate: *_TABLES *_TAB_PARTITIONS *_TAB_SUBPARTITIONS *_INDEXES *_IND_PARTITIONS *_IND_SUBPARTITIONS (There's lots more in the histograms fie…

Check Box Mapping of Other Values specifies how any fetched or assigned value that is not one of the pre-defined "checked" or "unchecked" values should be interpreted. Means suppose you have specified Value When Checked property to 'Y'…

We can run a Gradle build without any of the task actions being executed. This is a so-called dry run of our build. We can use the dry run of a build to see if the task dependencies we have defined or are defined in a plugin are defined properly. Bec…

 Pre-11gR2: "crsctl check crs" command hangs at EVMD check (文档 ID 1578875.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 10.2.0.3 to 11.1.0.7 [Release 10.2 to 11.1] Information in this document applies to any platform. SYMPTOMS…

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学习 Neutron 系列文章: (1)Neutron 所实现的虚拟化网络 (2)Neutron OpenvSwitch + VLAN 虚拟网络 (3)Neutron OpenvSwitch + GRE/VxLAN 虚拟网络 (4)Neutron OVS OpenFlow 流表 和 L2 Population (5)Neutron DHCP Agent (6)Neutron L3 Agent (7)Neutron LBaas (8)Neutron Security Group (9)Neutro…

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目录 [TOC] 1.基本概念 1.1.RabbitMQ集群概述   通过 Erlang 的分布式特性(通过 magic cookie 认证节点)进行 RabbitMQ 集群,各 RabbitMQ 服务为对等节点,即每个节点都提供服务给客户端连接,进行消息发送与接收.   这些节点通过 RabbitMQ HA 队列(镜像队列)进行消息队列结构复制.本方案中搭建 3 个节点,并且都是磁盘节点(所有节点状态保持一致,节点完全对等),只要有任何一个节点能够工作,RabbitMQ 集群对外就能提供服务.…

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…

运行环境 OS: Deiban 7 软件:haproxy 1.5.8 HTTP Server: 192.168.99.1:8520 192.168.99.1:8530 192.168.99.1:8540 192.168.99.1:8550 MySQL Server: 192.168.99.1:3306 按照该配置在命令行下执行 #可能需要管理员权限 sudo haproxy -d -f ./haproxy.cfg HTTP访问地址 http://localhost:8081 MySQL访问地址…