Oracle通过dblink连接GBase 8a MPP Cluster

Oracle 通过 dblink 连接 GBase 8a MPP Cluster

源端：

Oracle 版本： Oracle 11.2.0.3.0 OS 版本： Redhat 7.5 IP:192.168.38.20

目标端：

GBase 版本： GBase 8a Cluster OS 版本： Redhat 7.5 IP:192.168.38.10

一 Oracle 端安装 gateway

说明：Oracle 11.2.0.3.0 默认安装了 gateway

[oracle@cjcos02 hs]$ pwd

/u01/app/oracle/product/11.2.0/db_1/hs

查看gateway 信息

[oracle@cjcos02 hs]$ dg4odbc

Oracle Corporation --- SATURDAY MAY 09 2020 15:07:10.503

Heterogeneous Agent Release 11.2.0.3.0 - 64bit Production Built with

Oracle Database Gateway for ODBC

二 Oracle 端安装 GBase ODBC

GBase ODBC 下载地址：

http://www.gbase8a.com/forum.php?mod=viewthread&tdtype=document&tid=1319

安装：

[root@cjcos02 odbc]# rpm -ivh GBaseODBC-8.3.81.53-build53.17-redhat7-x86_64.rpm

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

Updating / installing...

1:gbaseodbc-8.3-53.17 ################################# [100%]

三 Oracle 端配置 odbcinst.in

[root@cjcos02 odbc]# vim /etc/odbcinst.ini

[GBase ODBC 8.3 Driver]

Driver=/usr/lib64/libgsodbc8.so

UsageCount=1

DontDLClose=1

Threading=0

四 Oracle 端配置 GBase ODBC 数据源

4.1 查看配置文件位置

[root@cjcos02 odbc]# odbcinst -j

unixODBC 2.3.1

DRIVERS............: /etc/odbcinst.ini

SYSTEM DATA SOURCES: /etc/odbc.ini

FILE DATA SOURCES..: /etc/ODBCDataSources

USER DATA SOURCES..: /root/.odbc.ini

SQLULEN Size.......: 8

SQLLEN Size........: 8

SQLSETPOSIROW Size.: 8

4.2 配置 odbc.in

[root@cjcos02 odbc]# vim /etc/odbc.ini

[gbase]

Description = ODBC for GBase

Driver = GBase ODBC 8.3 Driver

Server = 192.168.38.10

Port = 5258

UID = cjc

Password = cjc

Database = cjcdb

五 验证ODBC 连接

[root@cjcos02 odbc]# isql gbase

SQL> select version();

SQL> select * from t1;

六 配置 tnsnames.ora

[oracle@cjcos02 ~]$ cd $ORACLE_HOME/network/admin

[oracle@cjcos02 admin]$ vim tnsnames.ora

[oracle@cjcos02 admin]$ tnsping gbase

七 配置listener.ora

[oracle@cjcos02 admin]$ vim listener.ora

[oracle@cjcos02 admin]$ lsnrctl reload

[oracle@cjcos02 admin]$ lsnrctl status

八 配置 initgbase.ora

[oracle@cjcos02 admin]$ pwd

/u01/app/oracle/product/11.2.0/db_1/hs/admin

[oracle@cjcos02 admin]$ vim initgbase.ora

HS_FDS_CONNECT_INFO = gbase

HS_FDS_TRACE_LEVEL = 0

HS_FDS_SHAREABLE_NAME=/usr/lib64/libodbc.so

HS_FDS_SUPPORT_STATISTICS=FALSE

HS_LANGUAGE=AMERICAN_AMERICA.WE8ISO8859P15

set ODBCINI = /etc/odbc.ini

九 创建dblink

SQL> create public database link gbase connect to "cjc" identified by "cjc" using 'gbase';

Database link created.

十 验证数据

Oracle 端：

[oracle@cjcos02 ~]$ sqlplus / as sysdba

SQL> select * from t1@gbase;

Gbase 端：

[gbase@cjcos01 ~]$ gccli -ucjc -p

gbase> use cjcdb;

gbase> select * from t1;

十一：常见错误

如下报错一般都是 initgbase.ora 配置问题，添加 HS_FDS_SHAREABLE_NAME 参数即可。

SQL> select * from t1@gbase;

select * from t1@gbase

*

ERROR at line 1:

ORA-28500: connection from ORACLE to a non-Oracle system returned this message:

ORA-02063: preceding line from GBASE

Oracle 停库时报错 ORA-01097 ，切换会话后之前的会话会自动提交或回滚，在执行停库命令。

SQL> shutdown immediate

ORA-01097: cannot shutdown while in a transaction - commit or rollback first

切换会话

SQL> conn / as sysdba

Connected.

SQL> shutdown immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

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