一.安装数据库,这里使用的是percona-server5..24版本 配置如下 [root@zabbix4_clone:~]# cat /etc/my.cnf # Example MySQL config file for medium systems. # 8核 16G # This is for a system with little memory (16G) where MySQL plays [client] #password = your_password port = sock
1.Consumer优化:心跳线程可作为后台线程,提交offset,剥离出poll函数 问题:0.10新设计的consumer是单线程的,提交offset是在poll中.本次的poll调用,提交上次poll的心跳和offset值. The options for the user at the moment to handle this problem are the following: Increase the session timeout to give more time for re
参照MOS 官方文档Complete Checklist for Manual Upgrade to Oracle Database 11gR2 (11.2) (Doc ID 837570.1)一.升级前的准备1.复制utlu112i.sql脚本从11G数据库复制$ORACLE_HOME/rdbms/admin/utlu112i.sql 脚本至10g 数据库临时目录,准备执行如果不在10g数据库运行utlu112i.sql脚本,则执行升级脚本catupgrd.sql 时会报以下错误:SQL> S
APPLIES TO: Oracle® Database - Enterprise Edition - Version 10.2.0.4 to 11.2.0.2 [Release 10.2 to 11.2]Information in this document applies to any platform.***Checked for relevance on 29-Feb-2016*** SYMPTOMS Linux x86-64 running standard edition 11.2
Crashing Robots Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8340 Accepted: 3607 Description In a modernized warehouse, robots are used to fetch the goods. Careful planning is needed to ensure that the robots reach their destination