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  • 测试12.2.0.1RAC PDB级别的Failover

    关键步骤:手工添加服务名A并启动(已验证默认的服务名测试验证无法实现Failover)

    [oracle@db90 ~]$ srvctl add service -db orcl -service A -preferred cdb11,cdb12 -pdb pdb1
    [oracle@db90 ~]$ srvctl start service -db orcl -service A
    

    完整步骤:

    1.确认环境信息

    1.1 服务端信息:

    SQL> show parameter name
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    cdb_cluster_name                     string      orcl
    cell_offloadgroup_name               string
    db_file_name_convert                 string
    db_name                              string      orcl
    db_unique_name                       string      orcl
    global_names                         boolean     FALSE
    instance_name                        string      cdb11
    lock_name_space                      string
    log_file_name_convert                string
    pdb_file_name_convert                string
    processor_group_name                 string
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    service_names                        string      orcl
    SQL> show con_id
    
    CON_ID
    ------------------------------
    1
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             2 PDB$SEED                       READ ONLY  NO
             3 PDB1                           READ WRITE NO
             4 PDB2                           READ WRITE NO
    

    1.2 客户端tnsnames.ora配置:

    PDB=
            (DESCRIPTION =
                    (ADDRESS_LIST =
            (LOAD_BALANCE = off)
            (FAILOVER=on)
                    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.90)(PORT = 1521))
                    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.92)(PORT = 1521))
            )
            (CONNECT_DATA =
                    (SERVER = DEDICATED)
                    (SERVICE_NAME = A)
                    (FAILOVER_MODE =
                            (TYPE = SELECT)
                            (METHOD = BASIC)
                            (RETRIES = 180)
                            (DELAY = 5)
                            )
                    )
            )
    

    2.手工添加服务并启动

    [oracle@db90 ~]$ srvctl add service -db orcl -service A -preferred cdb11,cdb12 -pdb pdb1
    [oracle@db90 ~]$ srvctl start service -db orcl -service A
    

    查看服务状态,看到已经成功增加了ora.orcl.a.svc:

    [grid@db90 ~]$ crsctl stat res -t
    --------------------------------------------------------------------------------
    Name           Target  State        Server                   State details       
    --------------------------------------------------------------------------------
    Local Resources
    --------------------------------------------------------------------------------
    ora.ASMNET1LSNR_ASM.lsnr
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.DATA.dg
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.FRA.dg
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.LISTENER.lsnr
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.MGMT.dg
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.OCRVT.dg
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.chad
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.net1.network
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    ora.ons
                   ONLINE  ONLINE       db90                     STABLE
                   ONLINE  ONLINE       db92                     STABLE
    --------------------------------------------------------------------------------
    Cluster Resources
    --------------------------------------------------------------------------------
    ora.LISTENER_SCAN1.lsnr
          1        ONLINE  ONLINE       db92                     STABLE
    ora.MGMTLSNR
          1        ONLINE  ONLINE       db92                     169.254.59.133 10.0.
                                                                 0.92,STABLE
    ora.asm
          1        ONLINE  ONLINE       db90                     Started,STABLE
          2        ONLINE  ONLINE       db92                     Started,STABLE
          3        OFFLINE OFFLINE                               STABLE
    ora.cvu
          1        ONLINE  ONLINE       db90                     STABLE
    ora.db90.vip
          1        ONLINE  ONLINE       db90                     STABLE
    ora.db92.vip
          1        ONLINE  ONLINE       db92                     STABLE
    ora.mgmtdb
          1        ONLINE  ONLINE       db92                     Open,STABLE
    ora.orcl.a.svc
          1        ONLINE  ONLINE       db90                     STABLE
          2        ONLINE  ONLINE       db92                     STABLE
    ora.orcl.db
          1        ONLINE  ONLINE       db90                     Open,HOME=/u01/app/o
                                                                 racle/product/12.2.0
                                                                 /db_1,STABLE
          2        ONLINE  ONLINE       db92                     Open,HOME=/u01/app/o
                                                                 racle/product/12.2.0
                                                                 /db_1,STABLE
    ora.qosmserver
          1        ONLINE  ONLINE       db90                     STABLE
    ora.scan1.vip
          1        ONLINE  ONLINE       db92                     STABLE
    --------------------------------------------------------------------------------
    

    3.测试客户端连接到服务端

    [oracle@db01 admin]$ sqlplus scott/tiger@pdb
    
    SQL*Plus: Release 11.2.0.4.0 Production on Fri Mar 1 17:35:08 2019
    
    Copyright (c) 1982, 2013, Oracle.  All rights reserved.
    
    
    Connected to:
    Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
    
    SQL> show parameter name
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    cdb_cluster_name                     string      orcl
    cell_offloadgroup_name               string
    db_file_name_convert                 string
    db_name                              string      orcl
    db_unique_name                       string      orcl
    global_names                         boolean     FALSE
    instance_name                        string      cdb11
    lock_name_space                      string
    log_file_name_convert                string
    pdb_file_name_convert                string
    processor_group_name                 string
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    service_names                        string      orcl
    

    4.关闭实例1的pdb1

    [oracle@db90 ~]$ sqlplus / as sysdba
    
    SQL*Plus: Release 12.2.0.1.0 Production on Fri Mar 1 18:21:33 2019
    
    Copyright (c) 1982, 2016, Oracle.  All rights reserved.
    
    
    Connected to:
    Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
    
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             2 PDB$SEED                       READ ONLY  NO
             3 PDB1                           READ WRITE NO
             4 PDB2                           READ WRITE NO
    SQL> alter session set container=pdb1;
    
    Session altered.
    
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             3 PDB1                           READ WRITE NO
    SQL> shutdown immediate;
    Pluggable Database closed.
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             3 PDB1                           MOUNTED
    SQL> 
    

    5.客户端再次连接到服务端

    [oracle@db01 admin]$ sqlplus scott/tiger@pdb
    
    SQL*Plus: Release 11.2.0.4.0 Production on Fri Mar 1 18:23:48 2019
    
    Copyright (c) 1982, 2013, Oracle.  All rights reserved.
    
    
    Connected to:
    Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
    
    SQL> show parameter name
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    cdb_cluster_name                     string      orcl
    cell_offloadgroup_name               string
    db_file_name_convert                 string
    db_name                              string      orcl
    db_unique_name                       string      orcl
    global_names                         boolean     FALSE
    instance_name                        string      cdb12
    lock_name_space                      string
    log_file_name_convert                string
    pdb_file_name_convert                string
    processor_group_name                 string
    
    NAME                                 TYPE        VALUE
    ------------------------------------ ----------- ------------------------------
    service_names                        string      orcl
    SQL> 
    

    6.测试完成重新启动实例1的pdb1

    启动节点1的服务就会拉起实例1的pdb1:
    [oracle@db90 ~]$ srvctl start service -db orcl -service A -node db90
    

    整个测试过程已完成。

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  • 原文地址:https://www.cnblogs.com/jyzhao/p/10458233.html
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