Oracle监听lsnrctl查询状态详解

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lsnrctl查询到的状态显示如下

LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ocm1.oracle.domain)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                17-MAY-2011 21:03:40
Uptime                    0 days 0 hr. 2 min. 49 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/10.2.1/db/network/admin/listener.ora
Listener Log File         /u01/app/oracle/product/10.2.1/db/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1600)))
Services Summary...
Service "POD" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...
Service "POD1" has 1 instance(s).
Instance "POD", status UNKNOWN, has 1 handler(s) for this service...
Service "PODS" has 1 instance(s).
Instance "POD", status READY, has 2 handler(s) for this service...
Service "pod_XPT" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...
Service "repos" has 2 instance(s).
Instance "repos", status UNKNOWN, has 1 handler(s) for this service...
Instance "repos", status READY, has 1 handler(s) for this service...
Service "repos_XPT" has 1 instance(s).
Instance "repos", status READY, has 1 handler(s) for this service...
The command completed successfully

status详解

Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=1600)))

#此处说明该主机地址为ocm1.oracle.domain，开启的监听端口有1521,1522,1600

Services Summary...
Service "POD" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...

#此处说明有一个服务名POD的服务，数据库实例名为POD，状态READY说明其目前处于动态注册

Service "POD1" has 1 instance(s).
Instance "POD", status UNKNOWN, has 1 handler(s) for this service...

#此处说明有一个服务名为POD1的服务，数据库的实例名为POD，状态UNKNOWN说明其目前是静态注册

Service "PODS" has 1 instance(s).
Instance "POD", status READY, has 2 handler(s) for this service...

#此处说明有一个服务名为PODS的服务，数据库实例名为POD，状态READY说明其是动态注册

Service "repos" has 2 instance(s).
Instance "repos", status UNKNOWN, has 1 handler(s) for this service...
Instance "repos", status READY, has 1 handler(s) for this service...
The command completed successfully

#此处说明有一个服务名为repos的服务，对应数据库实例为repos，UNKNOWN,READY状态说明其目前有一个静态注册和一个动态注册

LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ocm1.oracle.domain)(PORT=1521)))
Services Summary...
Service "POD" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
Service "POD1" has 1 instance(s).
Instance "POD", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "PODS" has 1 instance(s).
Instance "POD", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D001" established:0 refused:0 current:0 max:1022 state:ready
         DISPATCHER
         (ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=37290))
      "D000" established:0 refused:0 current:0 max:1022 state:ready
         DISPATCHER
         (ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=37288))
Service "pod_XPT" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
Service "repos" has 2 instance(s).
Instance "repos", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Instance "repos", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
Service "repos_XPT" has 1 instance(s).
Instance "repos", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
The command completed successfully

service详解

Service "POD" has 1 instance(s).
Instance "POD", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER

#名为POD的服务，对应数据库实例为POD，状态READY说明其处于动态注册

DEDICATED" established:0 refused:0 state:ready说明是专有连接，连接数为0拒绝数为0，状态：动态

Service "POD1" has 1 instance(s).
Instance "POD", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:2 refused:0
         LOCAL SERVER

#名为POD1的服务，对应数据库实例为POD，状态UNKNOWN说明其处于静态注册

DEDICATED" established:2 refused:0说明是专有连接，连接数为2拒绝数为0

Service "PODS" has 1 instance(s).
Instance "POD", status READY, has 2 handler(s) for this service...
    Handler(s):
      "D001" established:0 refused:0 current:0 max:1022 state:ready
         DISPATCHER
         (ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=37290))
      "D000" established:0 refused:0 current:0 max:1022 state:ready
         DISPATCHER
         (ADDRESS=(PROTOCOL=tcp)(HOST=ocm1.oracle.domain)(PORT=37288))

#名为PODS的服务，对应数据库实例名为POD的数据库，READY状态说明其为动态注册

"D001" established:0 refused:0 current:0 max:1022 state:ready

"D000" established:0 refused:0 current:0 max:1022 state:ready

这里说明其为share模式，目前，两个dispatcher目前都连接为0，拒绝为0，最大数为1022，状态是动态注册

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

对应sql查询

SQL> show parameter dispatchers

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dispatchers                          string
max_dispatchers                      integer
SQL> alter system set dispatchers='(protocol=tcp) (dispatchers=2)';

System altered.

SQL> show parameter dispatchers

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dispatchers                          string      (protocol=tcp) (dispatchers=2)
max_dispatchers                      integer

SQL> select name,network,paddr,status from v$dispatcher;

NAME NETWORK                                                                          PADDR    STATUS
---- -------------------------------------------------------------------------------- -------- ----------------
D000 (ADDRESS=(PROTOCOL=tcp)(HOST=seagull)(PORT=37288))                               2A220390 WAIT
D001 (ADDRESS=(PROTOCOL=tcp)(HOST=seagull)(PORT=37290))                               2A220948 WAIT

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

Service "repos" has 2 instance(s).
Instance "repos", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Instance "repos", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER

#repos服务对应的实例有2个，但此处都为实例repos，一个为静态UNKNOWN,一个为动态READY，目前连接数都为0，拒绝也为0
The command completed successfull

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