docker安装oracle
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最近工作上面遇到一个性能相关的问题，大体描述一下： 批量任务执行的过程中导致数据库sql执行时间过长，查看之后是由于批量任务占满数据库连接池导致的，至于为什么批量任务会不受系统控制导致连接池占满就不说了，感觉是公司内部机密。为了能够在自己的博客里面记录这个过程，博主想在自己的ubuntu上安装一个oracle，但是下载下来之后发现ubuntu安装oracle会出现各种问题，而且网上解决方案比较少，所以打算使用docker安装，顺便复习一下自己docker的操作。
首先系统中应该存在docker这个运用程序，安装可以使用命令：sudo apt-get install docker.
安装完成之后最好是将docker的源修改一下，修改为阿里大佬的源，讲道理比docker官方的源强100倍。详情请参考http://blog.csdn.net/bwlab/article/details/50542261
搜索oracle相关的docker源：
work@work:~$ sudo docker search oracle [sudo] work 的密码： NAME DESCRIPTION STARS OFFICIAL AUTOMATED oraclelinux Oracle Linux is an open-source operating s... 402 [OK] frolvlad/alpine-oraclejdk8 The smallest Docker image with OracleJDK 8... 269 [OK] alexeiled/docker-oracle-xe-11g This is a working (hopefully) Oracle XE 11... 222 [OK] sath89/oracle-12c Oracle Standard Edition 12c Release 1 with... 221 [OK] sath89/oracle-xe-11g Oracle xe 11g with database files mount su... 135 [OK] isuper/java-oracle This repository contains all java releases... 55 [OK] jaspeen/oracle-11g Docker image for Oracle 11g database 55 [OK] oracle/glassfish GlassFish Java EE Application Server on Or... 30 [OK] oracle/openjdk Docker images containing OpenJDK Oracle Linux 26 [OK] airdock/oracle-jdk Docker Image for Oracle Java SDK (8 and 7)... 23 [OK] ingensi/oracle-jdk Official Oracle JDK installed on centos. 21 [OK] wnameless/oracle-xe-11g Dockerfile of Oracle Database Express Edit... 20 [OK] cogniteev/oracle-java Oracle JDK 6, 7, 8, and 9 based on Ubuntu ... 20 [OK] n3ziniuka5/ubuntu-oracle-jdk Ubuntu with Oracle JDK. Check tags for ver... 14 [OK] oracle/nosql Oracle NoSQL on a Docker Image with Oracle... 13 [OK] collinestes/docker-node-oracle A container with Node.js/Oracle instant cl... 9 [OK] openweb/oracle-tomcat A fork off of Official tomcat image with O... 7 [OK] sgrio/java-oracle Docker images of Java 7/8 provided by Orac... 7 [OK] andreptb/oracle-java Debian Jessie based image with Oracle JDK ... 7 [OK] flurdy/oracle-java7 Base image containing Oracle\'s Java 7 JDK 5 [OK] davidcaste/debian-oracle-java Oracle Java 8 (and 7) over Debian Jessie 3 [OK] teradatalabs/centos6-java8-oracle Docker image of CentOS 6 with Oracle JDK 8... 3 publicisworldwide/oracle-core This is the core image based on Oracle Lin... 1 [OK] spansari/nodejs-oracledb nodejs with oracledb installed globally on... 1 sigma/nimbus-lock-oracle 0 [OK]
在这里我们选sath89/oracle-12c sudo docker pull sath89/oracle-12c. 替换阿里源之后速度还是挺快的，差不多10分钟就能下载完成。查看下载的源，一共5.7G
work@work:~$ sudo docker images; REPOSITORY TAG IMAGE ID CREATED SIZE sath89/oracle-12c latest 17cd1ab9d9a7 2 days ago 5.703 GB kalilinux/kali-linux-docker latest 8ececeaf404d 9 months ago 1.558 GB
创建docker oracle容器
work@work:~/app$ sudo docker run -it sath89/oracle-12c Database not initialized. Initializing database. Starting tnslsnr Copying database files 1% complete 3% complete 11% complete 18% complete 26% complete 37% complete Creating and starting Oracle instance 40% complete 45% complete 50% complete 55% complete 56% complete 60% complete 62% complete Completing Database Creation 66% complete 70% complete 73% complete 85% complete 96% complete 100% complete Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/xe/xe.log" for further details. Configuring Apex console Database initialized. Please visit http://#containeer:8080/em http://#containeer:8080/apex for extra configuration if needed Starting web management console PL/SQL procedure successfully completed. Starting import from \'/docker-entrypoint-initdb.d\': found file /docker-entrypoint-initdb.d//docker-entrypoint-initdb.d/* [IMPORT] /entrypoint.sh: ignoring /docker-entrypoint-initdb.d/* Import finished Database ready to use. Enjoy! ;)
容器启动完成，注意使用此镜像创建的oracle用户名和密码为： system/oracle,然后我们使用本地的sql工具连接虚拟机的oracle。
至此，使用docker安装oracle完成，安装过程简单，非生产环境可以考虑使用。下一节详细说明以下遇到的性能问题及相关的分析思路。
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