a service with 2 instance (no cars)
Hi allI'm trying to understand why a service has 2 instances when I don't have a CAR. My DB is on a stand-alone server, but it displays 2 instance. This causes no problems, but while testing something I came across this and I wanted to clarify what is happening here... Here is the out put. I'm on 11.2.0.1 and see it on 10g as we... I get the part when he says READY is a dynamic registration and when his UNKNOWN, is a static record. But I only have a single listener...
Here's the listener.ora file
ADMIN_RESTRICTIONS_LISTENER = on
LISTENER_ORCL =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = IPC)
(KEY = ORCL.WORLD)
)
(ADDRESS=
(PROTOCOL = IPC)
(KEY = ORCL)
)
(ADDRESS =
(COMMUNITY = SAP.WORLD)
(PROTOCOL = TCP)
(HOST = hostname)
(PORT = 1535)
)
)
STARTUP_WAIT_TIME_LISTENER_ORCL = 0
CONNECT_TIMEOUT_LISTENER_ORCL = 10
TRACE_LEVEL_LISTENER_ORCL = OFF
SID_LIST_LISTENER_ORCL =
(SID_LIST =
(SID_DESC =
(SID_NAME = ORCL)
(ORACLE_HOME = /oracle/ORCL/112_64)
)
)
ADR_BASE_LISTENER = /oracle/ORCL/saptrace
and this is the status which shows 2 earpiecelsnrctl status LISTENER_ORCL
LSNRCTL for HPUX: Version 11.2.0.1.0 - Production on 30-MAY-2012 18:26:39
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=IPC)(KEY=ORCL.WORLD))
STATUS of the LISTENER
------------------------
Alias LISTENER_ORCL
Version TNSLSNR for HPUX: Version 11.2.0.1.0 - Production
Start Date 22-MAR-2012 22:03:30
Uptime 68 days 20 hr. 23 min. 8 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/ORCL/112_64/network/admin/listener.ora
Listener Log File /oracle/diag/tnslsnr/hostname/listener_ORCL/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=ORCL.WORLD)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=ORCL)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=server.com)(PORT=1535)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xxx.xxx)(PORT=1535)))
Services Summary...
Service "ORCL" has 2 instance(s).
Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
Instance "ORCL", status READY, has 1 handler(s) for this service...
The command completed successfully
In fact, you have 2 Oracle Net services with the same instance.
Reason for this is that you have:
1 instance of static record with earphone ("status UNKNOWN") because of listener.ora next section:
SID_LIST_LISTENER_ORCL =
(SID_LIST =
(SID_DESC =
(SID_NAME = ORCL)
(ORACLE_HOME = /oracle/ORCL/112_64)
)
)
2 by default, dynamic record instance with earphone (status "READY") because most likely you have instance to the LOCAL_LISTENER parameter local listener on port 1535.
Tags: Database
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