Why listener status is BLOCKED?

Copyright (c) 1982, 2006, Oracle. All Rights Reserved. You might get this error if you encounter with Connections via the listener to an instance that is in RESTRICTED status or in NO MOUNT status. The lsnrctl services output will show that the service handler for this instance is in state: BLOCKED or RESTRICTED.

How do I enable listener?

To start or stop the listener at the command line:

1. Open a command window.
2. Follow the steps listed in “Configuring the Operating System Environment Variables .”
3. Enter either of the following commands, depending on whether you want to start or stop the listener: lsnrctl start lsnrctl stop.

How do I fix my ORA 12528?

Restarting the Oracle instance can solve transient ORA-12528 errors. Typically (in Oracle 9i and above), when you “shutdown” an Oracle database, that process “unregisters” the database with the LISTENER. Then when you “startup” the database, it “registers” with the LISTENER.

How do I start the Oracle listener?

Start the Oracle listener service. Windows operating systems: Use the Services menu to start the Oracle TNS listener named OracleOraDb12_home1TNSListener . If the Oracle listener service is idle, start the listener.

What is ur A in Oracle?

You can use the newDatabase 10g OracleparameterUR=Ato updateTnsnames. oraDocuments. This parameter allows for a managed connection only. When the database nomount, mount or restricted, the dynamic monitoring of the status of the BLOCKED, the client can be connected through the configuration UR=A.

What does Cannot find available handler for requested type of server?

This error is related with out of available Oracle processes. If processes parameters are insufficient, then you should increase the PROCESSES parameter as follows. Restart database after this operation.

How do I check my DB listener status?

Do the following:

1. Log on to the host where the Oracle database resides.
2. Change to the following directory: Solaris: Oracle_HOME/bin. Windows: Oracle_HOME\bin.
3. To start the listener service, type the following command: Solaris: lsnrctl START. Windows: LSNRCTL.
4. Repeat step 3 to verify that the TNS listener is running.

How do I configure listener Ora?

Configuring Access to Oracle JServer

1. Start Oracle Net Manager.
2. In the navigator pane, expand Local > Listeners.
3. Select a listener.
4. From the list in the right pane, select Listening Locations.
5. Click Add Address.
6. Select the TCP/IP or TCP/IP with SSL protocol from the Protocol list.

How do I fix ORA 12528 TNS listener all appropriate instances are blocking new connections?

ORA-12528: TNS:listener: all appropriate instances are blocking new connections. To solve this problem you need to make static registration of your service in listener. ora. You need to restart listener to make it effective.

What is ur A in Tnsnames Ora?

UR=A is a sub-attribute of attribute CONNECT_DATA for a connect identifier in tnsnames. ora, it’s meant for lifting blocked state of dynamic services.

How do you create a static listener?

The configuration to enable the feature of static service registration is pretty easy, just add an entry called SID_LIST_LISTENER to the listener configuration file, which is usually at $ORACLE_HOME/network/admin/listener. ora and then restart the listener.