<<卸甲笔记>>-Oracle线下迁移到PPAS

迁移原则

1、尽量保持Oracle与PPAS一致,这会使得日后应用程序迁移更为简单

2、迁移前检查PPAS中是否有同名帐号及同名的Schema

a)如果有,建议考虑删除或改名

b)如果没有,先手工建立与Oracle同名的帐号及Schema

3、用MTK迁移时,配置文件中目标数据库建议使用与Oracle同名的帐号(如本案例中使用scott),这样可以保持目标数据库中所有表和对象的主属用户都和Oracle中一致

一 环境准备

Oracle环境

a)       IP:192.168.1.113,管理员用户 :sys,system,SID:prod

b)       普通用户scott,密码 scott

c)       Oralce 源数据库分析

<<卸甲笔记>>-Oracle线下迁移到PPAS

PPAS环境(Linux)

a)       安装PPAS

[root@test06 PPAS9.3GA]#tar zxvf ppasmeta-9.3.1.3-linux-x64.tar.gz

[root@test06 PPAS9.3GA]# cd ppasmeta-9.3.1.3-linux-x64

[root@test06 ppasmeta-9.3.1.3-linux-x64]# setenforce Permissive

[root@test06 ppasmeta-9.3.1.3-linux-x64]# ./ppasmeta-9.3.1.3-linux-x64.run --mode text

Language Selection

Please select the installation language

[1] English - English

[2] Japanese - 日本語

[3] Simplified Chinese - 简体中文

[4] Traditional Chinese - 繁体中文

[5] Korean - 한국어

Please choose an option [1] :

----------------------------------------------------------------------------

Welcome to the Postgres Plus Advanced Server Setup Wizard.

----------------------------------------------------------------------------

----------------------------------------------------------------------------

Please specify the directory where Postgres Plus Advanced Server will be installed.

Installation Directory [/opt/PostgresPlus/9.3AS]:

----------------------------------------------------------------------------

Select the components you want to install.

Database Server [Y/n] :Y

Connectors [Y/n] :Y

Infinite Cache [Y/n] :Y

Migration Toolkit [Y/n] :Y

Postgres Enterprise Manager Client [Y/n] :Y

pgpool-II [Y/n] :Y

EDB*Plus [Y/n] :Y

Slony Replication [Y/n] :Y

PgBouncer [Y/n] :Y

Is the selection above correct? [Y/n]: Y

----------------------------------------------------------------------------

Additional Directories

Please select a directory under which to store your data.

Data Directory [/opt/PostgresPlus/9.3AS/data]:

Please select a directory under which to store your Write-Ahead Logs.

Write-Ahead Log (WAL) Directory [/opt/PostgresPlus/9.3AS/data/pg_xlog]:

----------------------------------------------------------------------------

Configuration Mode

Postgres Plus Advanced Server always installs with Oracle(R) compatibility features and maintains full PostgreSQL compliance. Select your style preference for installation defaults and samples.

The Oracle configuration will cause the use of certain objects  (e.g. DATE data types, string operations, etc.) to produce Oracle compatible results, create the same Oracle sample tables, and have the database match Oracle examples used in the documentation.

Configuration Mode

[1] Oracle Compatible

[2] PostgreSQL Compatible

Please choose an option [1] :

----------------------------------------------------------------------------

……

----------------------------------------------------------------------------

Pre Installation Summary

Following settings will be used for installation:

Installation Directory: /opt/PostgresPlus/9.3AS

Data Directory: /opt/PostgresPlus/9.3AS/data

WAL Directory: /opt/PostgresPlus/9.3AS/data/pg_xlog

Database Port: 5444

Database Superuser: enterprisedb

Operating System Account: enterprisedb

Database Service: ppas-9.3

PgBouncer Listening Port: 6432

Press [Enter] to continue :

----------------------------------------------------------------------------

Setup is now ready to begin installing Postgres Plus Advanced Server on your computer.

Do you want to continue? [Y/n]: Y

----------------------------------------------------------------------------

Please wait while Setup installs Postgres Plus Advanced Server on your computer.

Installing Postgres Plus Advanced Server

0% ______________ 50% ______________ 100%

#########################################

Installing Database Server ...

Installing pgAgent ...

Installing Connectors ...

Installing Migration Toolkit ...

Installing EDB*Plus ...

Installing Infinite Cache ...

Installing Postgres Enterprise Manager Client ...

Installing Slony Replication ...

Installing pgpool-II ...

Installing PgBouncer ...

Installing StackBuilder Plus ...

----------------------------------------------------------------------------

Setup has finished installing Postgres Plus Advanced Server on your computer.

[root@test06 ppasmeta-9.3.1.3-linux-x64]# ps hf -u enterprisedb -o cmd

/opt/PostgresPlus/9.3AS/bin/pgbouncer -d /opt/PostgresPlus/9.3AS/share/pgbouncer.ini

/opt/PostgresPlus/9.3AS/bin/pgagent -l 1 -s /var/log/ppas-agent-9.3.log hostaddr=localhost port=5444 dbname=edb user=enterprisedb

/opt/PostgresPlus/9.3AS/bin/edb-postgres -D /opt/PostgresPlus/9.3AS/data

\_ postgres: logger process

\_ postgres: checkpointer process

\_ postgres: writer process

\_ postgres: wal writer process

\_ postgres: autovacuum launcher process

\_ postgres: stats collector process

\_ postgres: enterprisedb edb ::1[36172] idle

b)       PPAS pg_hba.conf文件基础配置

-bash-4.1$ vim /opt/PostgresPlus/9.3AS/data/pg_hba.conf

host    all             all             0.0.0.0/0               md5

c)       重新启动PPAS服务

[root@test06 data]# /etc/init.d/ppas-9.3 restart

Restarting Postgres Plus Advanced Server 9.3:

waiting for server to shut down.... done

server stopped

waiting for server to start.... done

server started

Postgres Plus Advanced Server 9.3 restarted successfully

d)       Oracle Client安装

[root@test06 ppasmeta-9.3.1.3-linux-x64]# rpm -ql oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64

package oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64 is not installed

[root@test06 oralceclient]# ls

oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64.rpm

[root@test06 oralceclient]# rpm -ivh oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64.rpm

Preparing...                ########################################### [100%]

1:oracle-instantclient11.########################################### [100%]

[root@test06 oralceclient]# rpm -ql oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64

/usr/lib/oracle/11.2/client64/bin/adrci

/usr/lib/oracle/11.2/client64/bin/genezi

/usr/lib/oracle/11.2/client64/lib/libclntsh.so.11.1

/usr/lib/oracle/11.2/client64/lib/libnnz11.so

/usr/lib/oracle/11.2/client64/lib/libocci.so.11.1

/usr/lib/oracle/11.2/client64/lib/libociei.so

/usr/lib/oracle/11.2/client64/lib/libocijdbc11.so

/usr/lib/oracle/11.2/client64/lib/ojdbc5.jar

/usr/lib/oracle/11.2/client64/lib/ojdbc6.jar

/usr/lib/oracle/11.2/client64/lib/xstreams.jar

e)       JDK确认(1.6以上)

[root@test06 ppasmeta-9.3.1.3-linux-x64]# rpm -qa|grep java

java-1.7.0-openjdk-devel-1.7.0.45-2.4.3.3.el6.x86_64

java-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.x86_64

tzdata-java-2013g-1.el6.noarch

gcc-java-4.4.7-4.el6.x86_64

java_cup-0.10k-5.el6.x86_64

java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64

java-1.6.0-openjdk-1.6.0.0-1.66.1.13.0.el6.x86_64

libvirt-java-0.4.9-1.el6.noarch

java-1.6.0-openjdk-devel-1.6.0.0-1.66.1.13.0.el6.x86_64

libvirt-java-devel-0.4.9-1.el6.noarch

[root@test06 ppasmeta-9.3.1.3-linux-x64]# which java

/usr/bin/java

[root@test06 ppasmeta-9.3.1.3-linux-x64]# ll /usr/bin/java

lrwxrwxrwx. 1 root root 22 Jun 13  2016 /usr/bin/java -> /etc/alternatives/java

f)        JDBC配置

[root@test06 ext]# cp /usr/lib/oracle/11.2/client64/lib/ojdbc6.jar /usr/lib/jvm/jre-1.7.0/lib/ext/

[root@test06 ext]# ls

dnsns.jar              localedata.jar  ojdbc6.jar      sunjce_provider.jar  zipfs.jar

gnome-java-bridge.jar  meta-index      pulse-java.jar  sunpkcs11.jar

二、迁移测试

在PPAS中建立测试用户及数据库

[root@test06 ppasmeta-9.3.1.3-linux-x64]# su – enterprisedb

-bash-4.1$ psql

psql.bin (9.3.1.3)

Type "help" for help.

edb=# create user scott password 'scott' createrole createuser createdb login;

CREATE ROLE

edb=# create database scott owner scott;

CREATE DATABASE

MTK配置文件toolkit.properties

/opt/PostgresPlus/9.3AS/etc/toolkit.properties

[root@test06 etc]# vim toolkit.properties

SRC_DB_URL=jdbc:oracle:thin:@192.168.1.113:1521:prod

SRC_DB_USER=scott

SRC_DB_PASSWORD=scott

TARGET_DB_URL=jdbc:edb://localhost:5444/scott

TARGET_DB_USER=scott

TARGET_DB_PASSWORD=scott

/opt/PostgresPlus/9.3AS/bin/runMTK.sh

运行/runMTK.sh进行数据迁移

[root@test06 etc]# cd /opt/PostgresPlus/9.3AS/bin/

[root@test06 bin]# ./runMTK.sh  scott

Source database connectivity info...

conn =jdbc:oracle:thin:@192.168.1.113:1521:prod

user =scott

password=******

Target database connectivity info...

conn =jdbc:edb://localhost:5444/scott

user =scott

password=******

Connecting with source Oracle database server...

Connecting with target EnterpriseDB database server...

Importing redwood schema scott...

Creating Schema...scott

Creating Tables...

Creating Table: BONUS

Creating Table: DEPT

Creating Table: EMP

Creating Table: SALGRADE

Created 4 tables.

Loading Table Data in 8 MB batches...

Loading Table: BONUS ...

[BONUS] Table Data Load Summary: Total Time(s): 0.04 Total Rows: 0

Loading Table: DEPT ...

[DEPT] Migrated 4 rows.

[DEPT] Table Data Load Summary: Total Time(s): 0.01 Total Rows: 4

Loading Table: EMP ...

[EMP] Migrated 14 rows.

[EMP] Table Data Load Summary: Total Time(s): 0.049 Total Rows: 14

Loading Table: SALGRADE ...

[SALGRADE] Migrated 5 rows.

[SALGRADE] Table Data Load Summary: Total Time(s): 0.008 Total Rows: 5

Data Load Summary: Total Time (sec): 0.371 Total Rows: 23 Total Size(MB): 0.0

Creating Constraint: PK_DEPT

Creating Constraint: PK_EMP

Creating Constraint: FK_DEPTNO

Schema scott imported successfully.

Creating User: SCOTT

Error Creating User SCOTT (由于已经在目标端数据库创建了一个名为scott的用户,所以重新创建同名Scott用户时出错,如果目标端没有scott用户则不会出现错误。)

One or more schema objects could not be imported during the migration process. Please review the migration output for more details.

Migration logs have been saved to /root/.enterprisedb/migration-toolkit/logs

******************** Migration Summary ********************

Tables: 4 out of 4

Constraints: 3 out of 3

Users: 0 out of 1

Total objects: 8

Successful count: 7

Failure count: 1

List of failed objects

======================

Users

--------------------

1. SCOTT

*************************************************************

查看迁移日志

[root@test06 etc]#  ll /root/.enterprisedb/migration-toolkit/logs/*

-rw-r--r--. 1 root root 2229 Jun 15 11:13 /root/.enterprisedb/migration-toolkit/logs/mtk_20160615111238.log

PPAS数据验证

-bash-4.1$ psql -h localhost -p 5444 -U scott -d scott

Password for user scott:

psql.bin (9.3.1.3)

Type "help" for help.

scott=# \d scott.*

Table "scott.bonus"

Column |         Type          | Modifiers

--------+-----------------------+-----------

ename  | character varying(10) |

job    | character varying(9)  |

sal    | numeric               |

comm   | numeric               |

Table "scott.dept"

Column |         Type          | Modifiers

--------+-----------------------+-----------

deptno | numeric(2,0)          | not null

dname  | character varying(14) |

loc    | character varying(13) |

Indexes:

"pk_dept" PRIMARY KEY, btree (deptno)

Referenced by:

TABLE "emp" CONSTRAINT "fk_deptno" FOREIGN KEY (deptno) REFERENCES dept(deptno) MATCH FULL

Table "scott.emp"

Column  |            Type             | Modifiers

----------+-----------------------------+-----------

empno    | numeric(4,0)                | not null

ename    | character varying(10)       |

job      | character varying(9)        |

mgr      | numeric(4,0)                |

hiredate | timestamp without time zone |

sal      | numeric(7,2)                |

comm     | numeric(7,2)                |

deptno   | numeric(2,0)                |

Indexes:

"pk_emp" PRIMARY KEY, btree (empno)

Foreign-key constraints:

"fk_deptno" FOREIGN KEY (deptno) REFERENCES dept(deptno) MATCH FULL

Index "scott.pk_dept"

Column |     Type     | Definition

--------+--------------+------------

deptno | numeric(2,0) | deptno

primary key, btree, for table "scott.dept"

Index "scott.pk_emp"

Column |     Type     | Definition

--------+--------------+------------

empno  | numeric(4,0) | empno

primary key, btree, for table "scott.emp"

Table "scott.salgrade"

Column |  Type   | Modifiers

--------+---------+-----------

grade  | numeric |

losal  | numeric |

hisal  | numeric |

scott=# select * from scott.emp ;

empno | ename  |    job    | mgr  |      hiredate      |   sal   |  comm   | deptno

-------+--------+-----------+------+--------------------+---------+---------+--------

7369 | SMITH  | CLERK     | 7902 | 17-DEC-80 00:00:00 |  800.00 |         |     20

7499 | ALLEN  | SALESMAN  | 7698 | 20-FEB-81 00:00:00 | 1600.00 |  300.00 |     30

7521 | WARD   | SALESMAN  | 7698 | 22-FEB-81 00:00:00 | 1250.00 |  500.00 |     30

7566 | JONES  | MANAGER   | 7839 | 02-APR-81 00:00:00 | 2975.00 |         |     20

7654 | MARTIN | SALESMAN  | 7698 | 28-SEP-81 00:00:00 | 1250.00 | 1400.00 |     30

7698 | BLAKE  | MANAGER   | 7839 | 01-MAY-81 00:00:00 | 2850.00 |         |     30

7782 | CLARK  | MANAGER   | 7839 | 09-JUN-81 00:00:00 | 2450.00 |         |     10

7788 | SCOTT  | ANALYST   | 7566 | 19-APR-87 00:00:00 | 3000.00 |         |     20

7839 | KING   | PRESIDENT |      | 17-NOV-81 00:00:00 | 5000.00 |         |     10

7844 | TURNER | SALESMAN  | 7698 | 08-SEP-81 00:00:00 | 1500.00 |    0.00 |     30

7876 | ADAMS  | CLERK     | 7788 | 23-MAY-87 00:00:00 | 1100.00 |         |     20

7900 | JAMES  | CLERK     | 7698 | 03-DEC-81 00:00:00 |  950.00 |         |     30

7902 | FORD   | ANALYST   | 7566 | 03-DEC-81 00:00:00 | 3000.00 |         |     20

7934 | MILLER | CLERK     | 7782 | 23-JAN-82 00:00:00 | 1300.00 |         |     10

(14 rows)

Oracle端数据

SQL> select segment_name from dba_segments where owner='SCOTT';

SEGMENT_NAME

--------------------------------------------------------------------------------

PK_EMP

PK_DEPT

SALGRADE

EMP

DEPT

SQL> conn scott/scott

Connected.

SQL> desc emp;

Name                                             Null?    Type

----------------------------------------- -------- ----------------------------

EMPNO                                          NOT NULL NUMBER(4)

ENAME                                                     VARCHAR2(10)

JOB                                                            VARCHAR2(9)

MGR                                                         NUMBER(4)

HIREDATE                                                DATE

SAL                                                   NUMBER(7,2)

COMM                                                     NUMBER(7,2)

DEPTNO                                                  NUMBER(2)

SQL> select * from emp;

EMPNO ENAME JOB MGR HIREDATE
---------- -------------------- ------------------ ---------- ------------
SAL COMM DEPTNO
---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80
800 20

7499 ALLEN SALESMAN 7698 20-FEB-81
1600 300 30

7521 WARD SALESMAN 7698 22-FEB-81
1250 500 30

EMPNO ENAME JOB MGR HIREDATE
---------- -------------------- ------------------ ---------- ------------
SAL COMM DEPTNO
---------- ---------- ----------
7566 JONES MANAGER 7839 02-APR-81
2975 20

7654 MARTIN SALESMAN 7698 28-SEP-81
1250 1400 30

7698 BLAKE MANAGER 7839 01-MAY-81
2850 30

EMPNO ENAME JOB MGR HIREDATE
---------- -------------------- ------------------ ---------- ------------
SAL COMM DEPTNO
---------- ---------- ----------
7782 CLARK MANAGER 7839 09-JUN-81
2450 10

7788 SCOTT ANALYST 7566 19-APR-87
3000 20

7839 KING PRESIDENT 17-NOV-81
5000 10

EMPNO ENAME JOB MGR HIREDATE
---------- -------------------- ------------------ ---------- ------------
SAL COMM DEPTNO
---------- ---------- ----------
7844 TURNER SALESMAN 7698 08-SEP-81
1500 0 30

7876 ADAMS CLERK 7788 23-MAY-87
1100 20

7900 JAMES CLERK 7698 03-DEC-81
950 30

EMPNO ENAME JOB MGR HIREDATE
---------- -------------------- ------------------ ---------- ------------
SAL COMM DEPTNO
---------- ---------- ----------
7902 FORD ANALYST 7566 03-DEC-81
3000 20

7934 MILLER CLERK 7782 23-JAN-82
1300 10

14 rows selected.

本连载博客主要探讨Oracle与PPAS(PostgreSQL)数据库的差异,以帮助更多读者了解如何实现数据库迁移!

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