oracle 11g RAC EM重建讲解


环境：oracle 11.2.0.3 + RAC + 2node + raw + redhat5.7

重建EM报错：

SEVERE: Scan Listener is not up or database service is not regist

这个是没有设置好remote_listener参数

解决方法：

EM重建：

如果是正常的环境就关闭：（我的环境已经是瘫痪的EM了，所以根本没有起来）

emctl stop dbconsole

RAC环境和单节点不同，需要加 -cluster 参数

emca -deconfig dbcontrol db -repos drop -cluster

以上命令清除RAC数据库旧配置信息，但是会使数据库进入静默模式，锁定所有用户，在生产环境是不允许的。

于是使用如下方式清除：(不会进入静默模式)

删除旧配置信息：

emca -deconfig dbcontrol db  节点1  

emca -deconfig dbcontrol db  节点2

然后手动删除数据库中的相关信息：oracle用户

DROP PUBLIC SYNONYM MGMT_SEVERITY;

DROP PUBLIC SYNONYM MGMT_SEVERITY_ARRAY;

DROP PUBLIC SYNONYM MGMT_SEVERITY_OBJ;

DROP PUBLIC SYNONYM MGMT_AVAILABILITY;

DROP PUBLIC SYNONYM MGMT_CURRENT_AVAILABILITY;

DROP PUBLIC SYNONYM MGMT_CURRENT_METRICS;

DROP PUBLIC SYNONYM MGMT_CURRENT_METRIC_ERRORS;

DROP PUBLIC SYNONYM MGMT_CURRENT_SEVERITY;

DROP PUBLIC SYNONYM MGMT_SEVERITY_OBJ;

DROP PUBLIC SYNONYM MGMT_GUID_ARRAY;

DROP PUBLIC SYNONYM MGMT_GUID_OBJ;

DROP PUBLIC SYNONYM MGMT_METRICS;

DROP PUBLIC SYNONYM MGMT_METRICS_RAW;

DROP PUBLIC SYNONYM MGMT_METRICS_COMPOSITE_KEYS;

DROP PUBLIC SYNONYM MGMT_METRICS_1HOUR;

DROP PUBLIC SYNONYM MGMT_METRICS_1DAY;

DROP PUBLIC SYNONYM MGMT_METRIC_ERRORS;

DROP PUBLIC SYNONYM MGMT_METRIC_COLLECTIONS;

DROP PUBLIC SYNONYM MGMT_METRIC_THRESHOLDS;

DROP PUBLIC SYNONYM MGMT_TARGET;

DROP PUBLIC SYNONYM MGMT_TARGETS;

DROP PUBLIC SYNONYM MGMT_TARGET_PROPERTIES;

DROP PUBLIC SYNONYM MGMT_TARGET_MEMBERSHIPS;

DROP PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;

DROP PUBLIC SYNONYM MGMT_TYPE_PROPERTIES;

DROP PUBLIC SYNONYM MGMT_CURRENT_METRICS;

DROP PUBLIC SYNONYM MGMT_CURRENT_METRIC_ERRORS;

DROP PUBLIC SYNONYM MGMT_STRING_METRIC_HISTORY;

DROP PUBLIC SYNONYM MGMT_LONG_TEXT;

DROP PUBLIC SYNONYM MGMT_COLLECTION_PROPERTIES;

DROP PUBLIC SYNONYM MGMT_DELTA;

DROP PUBLIC SYNONYM MGMT_DELTA_IDS;

DROP PUBLIC SYNONYM MGMT_DELTA_ID_VALUES;

DROP PUBLIC SYNONYM MGMT_DELTA_ENTRY;

DROP PUBLIC SYNONYM MGMT_DELTA_ENTRY_VALUES;

DROP PUBLIC SYNONYM MGMT_DELTA_VALUE;

DROP PUBLIC SYNONYM MGMT_DELTA_VALUES;

DROP PUBLIC SYNONYM MGMT_NAME_VALUE;

DROP PUBLIC SYNONYM MGMT_NAME_VALUES;

DROP PUBLIC SYNONYM MGMT_JOB;

DROP PUBLIC SYNONYM MGMT_JOBS;

DROP PUBLIC SYNONYM MGMT_JOB_EXECPLAN;

DROP PUBLIC SYNONYM MGMT_JOB_EXECUTION;

DROP PUBLIC SYNONYM MGMT_JOB_EXEC_SUMMARY;

DROP PUBLIC SYNONYM MGMT_JOB_OUTPUT;

DROP PUBLIC SYNONYM MGMT_JOB_PARAMETER;

DROP PUBLIC SYNONYM MGMT_JOB_SCHEDULE;

DROP PUBLIC SYNONYM MGMT_JOB_TARGET;

DROP PUBLIC SYNONYM MGMT_AVAILABILITY;

DROP PUBLIC SYNONYM MGMT_ADMIN;

DROP PUBLIC SYNONYM MGMT_GLOBAL;

DROP PUBLIC SYNONYM MGMT_LOG;

DROP PUBLIC SYNONYM MGMT_CREDENTIAL;

DROP PUBLIC SYNONYM MGMT_PREFERENCES;

DROP PUBLIC SYNONYM MGMT_PAF_PROCS_LATEST;

DROP PUBLIC SYNONYM MGMT_PAF_JOBS;

DROP PUBLIC SYNONYM MGMT_PAF$PROCEDURES;

DROP PUBLIC SYNONYM MGMT_PAF$APPLICATIONS;

DROP PUBLIC SYNONYM MGMT_PAF$INSTANCES;

DROP PUBLIC SYNONYM MGMT_PAF$STATES;

DROP PUBLIC SYNONYM SMP_EMD_AVAIL_OBJ;

DROP PUBLIC SYNONYM SMP_EMD_TARGET_OBJ;

DROP PUBLIC SYNONYM SMP_EMD_TARGET_OBJ_ARRAY;

DROP PUBLIC SYNONYM SMP_EMD_DELETE_REC_ARRAY;

DROP PUBLIC SYNONYM EMD_MNTR;

DROP PUBLIC SYNONYM SMP_EMD_NVPAIR;

DROP PUBLIC SYNONYM SMP_EMD_NVPAIR_ARRAY;

DROP PUBLIC SYNONYM SMP_EMD_STRING_ARRAY;

DROP PUBLIC SYNONYM SMP_EMD_STRING_ARRAY_ARRAY;

DROP PUBLIC SYNONYM SMP_EMD_INTEGER_ARRAY;

DROP PUBLIC SYNONYM SMP_EMD_INTEGER_ARRAY_ARRAY;

DROP PUBLIC SYNONYM ECM_UTIL;

DROP PUBLIC SYNONYM MGMT_USER;

DROP PUBLIC SYNONYM MGMT_VIEW_UTIL;

DROP PUBLIC synonym SETEMVIEWUSERCONTEXT;

DROP PUBLIC SYNONYM MGMT_MESSAGES;

DROP ROLE MGMT_USER;

drop public synonym MGMT_TARGET_BLACKOUTS;

DROP USER MGMT_VIEW CASCADE;

DROP USER SYSMAN CASCADE;

然后检查grid和oracle的remote_listener参数是否设置：

sqlplus
asmsnmp/123456@scan:1521/+ASM as sysdba

上面命令登入不了就没有设置，listener_scan1没有开启，没有监听到远程ASM

sqlplus
asmsnmp/123456@192.168.1.5:1521/+ASM as sysdba     ---登入本ASM实例

select instance_name from v$instance;

两个节点grid都添加远程监听：

[grid@rac01 admin]$ sqlplus /nolog

SQL> conn /as sysdba

SQL> show parameter remote

alter system set remote_listener='rac-scan:1521' scope=both sid='*';

alter system register;         ---注册监听

单个节点oracle用户添加远程监听：（已有remote_listener配置就不需要）

[oracle@rac01]$ sqlplus /nolog

SQL> conn /as sysdba

SQL> show parameter remote

alter system set remote_listener='rac-scan:1521' scope=both sid='*';

alter system register;         ---注册监听

启动listener_scan1监听

[grid@rac01 ~]$ lsnrctl start LISTENER_SCAN1

[grid@rac01 ~]$ lsnrctl status listener_scan1

当scanip在本机时可以监听到所以实例，如果不在本机，就监听不到，当scanip漂移到节点2的时候就能看见了。

[grid@rac01 ~]$ lsnrctl status listener_scan1

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 11-JAN-2015 02:21:34

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))

STATUS of the LISTENER

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

Alias                     listener_scan1

Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production

Start Date                10-JAN-2015 21:15:25

Uptime                    0 days 5 hr. 6 min. 8 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Parameter File   /u01/11.2.0.3/grid/network/admin/listener.ora

Listener Log File         /u01/app/grid/diag/tnslsnr/rac01/listener_scan1/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.225)(PORT=1521)))

Services Summary...

Service "+ASM" has 2 instance(s).

  Instance "+ASM1", status READY, has 1 handler(s) for this service...

  Instance "+ASM2", status READY, has 1 handler(s) for this service...

Service "racdb" has 2 instance(s).

  Instance "racdb1", status READY, has 1 handler(s) for this service...

  Instance "racdb2", status READY, has 1 handler(s) for this service...

The command completed successfully

监听正常后就可以进行集群的EM配置了：

emca -config dbcontrol db -repos create -cluster

配置完成就可以https访问了

可以把https改成http ：

emctl unsecure dbconsole

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