***Checked for relevance on 30-Apr-2012*** goal: How to automate disconnection of idle sessions fact: Oracle Server - Enterprise Edition 8.1 fix: 1. Enable the feature - alter system set resource_limit = true; OR Set the parameter in the parameter fi…

问题:监控不断告警ORA-12609 Wed 10/14/2020 10:40 AM 12CRAC1-ALERT中出现ORA错误,请检查 171- nt OS err code: 0 172- Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xx)(PORT=1910)) 173-2020-10-14T10:29:26.605709+08:00 174-Errors in file /u01/app/oracle/diag/rdbms/bjivradg/…

How to Keep Alive SSH Sessions Many NAT firewalls time out idle sessions after a certain period of time to keep their trunks clean. Sometimes the interval between session drops is 24 hours, but on many commodity firewalls, connections are killed afte…

由于想使用python操作oracle所以查看了cx_Oracle的官方文档,同时也查看了twisted中cx_Oracle的使用.下面是摘自文档中一些我认为有用的内容 cx_Oracle is a module that enables access to Oracle databases and conforms to the Python database API specification. This module is currently built against Oracle 11…

ssh连接超时问题解决方案: 1.修改server端的etc/ssh/sshd_config ClientAliveInterval 60 #server每隔60秒发送一次请求给client,然后client响应,从而保持连接 ClientAliveCountMax 3 #server发出请求后,客户端没有响应得次数达到3,就自动断开连接,正常情况下,client不会不响应 2.修改client端的etc/ssh/ssh_config添加以下:(在没有权限改server配置的情形下) Serve…

页面如下: 主页面的布局分隔为三部分: 注意观察上面标记为红色的android:id均采用android系统默认的名称: 页面的导航组件: <?xml version="1.0" encoding="UTF-8"?> <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" xmlns:and…

一.mina总体框架与案例: 1.总体结构图: 简述:以上是一张来自网上比較经典的图,总体上揭示了mina的结构,当中IoService包括clientIoConnector和服务端IoAcceptor两部分.即不管是client还是服务端都是这个结构.IoService封装了网络传输层(TCP和UDP),而IoFilterChain中mina自带的filter做了一些主要的操作之外,支持扩展.经过FilterChain之后终于调用IoHandler,IoHandler是详细实现业务逻辑的处理接…

200.Which operation requires that you create an auxiliary instance manually before executing the operation? (Choose all that apply.) A. Backup-based database duplication. B. Active database duplication. C. Tablespace point-in-time recovery. D. No ope…

1.环境说明: HDP 2.4 V3 sandbox hue 4.0.0 2.hue 4.0.0 编译及安装 地址:https://github.com/cloudera/hue/releases/tag/release-4.1.0(也许是发版这弄错了吧,连接是4.1.0,内容版本是4.0.0) 2.1 修改%HUE_CODE_HOME%/hue/maven/pom.xml版本,如下: <hadoop-mr1.version>2.7.1</hadoop-mr1.version> &…

Telling Tomcat to save session records in MySQL 此部分内容摘自 MySQL cookbook 3th.具体内容不做翻译,哈哈,懒 The default Tomcat default session storage mechanism uses temporary files. To save sessions using JDBC with MySQL instead, follow this procedure: Create a table…