mardi 16 février 2016

ORA-12521: TNS:listener does not currently know of instance requested in connect

ORA-12521
ORA-12521: TNS:listener does not currently know of instance requested in connect
descriptor
Cause: The listener received a request to establish a connection to a database or
other service. The connect descriptor received by the listener specified in addition
to the service name an instance name for an instance (usually a database instance)
that either has not yet dynamically registered with the listener or has not been
statically configured for the listener. This may be a temporary condition such as
after the listener has started, but before the database instance has registered with
the listener.
Action:
- Wait a moment and try to connect a second time.
- Check which instances are currently known by the listener by executing: lsnrctl
services <listener name>
- Check that the INSTANCE_NAME parameter in the connect descriptor specifies
an instance name known by the listener.
- Check for an event in the listener.log file.
More details : Viste http://www.high-oracle.com/ora-12521/
More details : Viste http://www.high-oracle.com/ora-12521/
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Viste our Support Blog : http://oracleerrormsgs.blogspot.fr/
Viste our Support Blog : http://oracleerror1.blogspot.fr/
Viste our Support Blog : http://oracleerrorcodelist.blogspot.fr/
Viste our Support Blog : http://all-dba-support.blogspot.fr/
Viste our Support Blog : http://my-support-oracle.blogspot.fr/
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Nsaibi Mohamed

Author & Editor

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