Database Connectivity Issue

Host :localhost
Port:1521
SID:orcl
Whenever I try to connect by SQL Developer I get the following Error
ORA12505, TNS Listener does not currently know of SID given in connect descriptor.
My tnsnames.ora file
# tnsnames.ora Network Configuration File: C:\app\ANIRBAN\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
ORCL =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
My listener.ora file
# listener.ora Network Configuration File: C:\app\ANIRBAN\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\app\ANIRBAN\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:C:\app\ANIRBAN\product\11.2.0\dbhome_1\bin\oraclr11.dll")
LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ADR_BASE_LISTENER = C:\app\ANIRBAN

2. How to configure the oracle client with the
database server?Actually you configure the database server on the client by adding the service name entry to the tnsnames.ora file.
Check what this entry sould look like in the tnsnames.ora file at the server side, then copy and paste into tnsnames.ora at client side.
If perchance there is no entry for the database at server tnsnames.ora, then check the listener.ora file to obtain this information.

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Kumar
Edited by: 906270 on Jan 9, 2012 3:01 AM

906270 wrote:
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Run it on the same box as jboss.
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Edited by: ztech123 on 28-Oct-2010 18:38

ztech123 wrote:
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Lawrence Cramer - *Adobe Community Professional*
http://www.Cartweaver.com
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There should be an explanation on how to install and configure the Sybase driver in the zip file.
Your problem is most likely a classpath problem.
For example with the MySQL driver I had to unzip the files and copy the mysql-connector-java-3.0.6-stable-bin.jar file to the java installation directory C:\j2sdk1.4.1_02\jre\lib\ext.
rykk

Connectivity issue to database.

DB Version :10.2.0.2
OS:Sloaris 5.8
Yesterday the application server couldn't able to connect to the production database for 30 min .When i checked in the alert log ,i got primary unable to ping the standby database
LGWR: I/O error 3113 archiving log 3 to '*********'
ORA-01034: ORACLE not available
PING[ARC1]: Heartbeat failed to connect to standby '*********'. Error is 1034.
Error 1034 received logging on to the standby
WARNING: inbound connection timed out (ORA-3136)
In AWR report it showing log file sync as top wait event
My production database is in max performance mode
log_archive_dest_2 = service=********* lgwr async noaffirm net_timeout=10
The application team told me that at that time some stored procedure was running which used to do some bulk DML . But this stored procedure runs at the same time every day .
Is this issue is due to primary and standby database connectivity issue causing problem due to wihich the the lgwr of primary unable to write on standby and causing the log file sync to go high.and when i compared it with day before yesterday AWR report same procedure and sql's were executed with out issue at that time.
iF we change to ARCH will it help.
log_archive_dest_2 = service=********* ARCH noaffirm net_timeout=10

user8850066 wrote:
No it was not down at that time. will Standby DB cause any performance problem to primary if it is down and the primary is in max performance mode.
As per my knowledge it shouldn't in max performance mode. But not sure what will happen if the lgwr async in max performance.Now your standby database can receive logs from primary?
Post there your standby and primary database alert.log according this time.

Database Connectivity Issue

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