Q

"Connection reset by peer" error

I have installed Oracle 8i Enterprise on my Windows XP system. I was able to start up the database from svrmgrl and made a new database. Now when I try to connect to it with jsp using jdbc and Oracle thin drivers, I am getting an error, "connection reset by peer." When I type tnsping [sid name] from the dos prompt I get a "packet writer failure" error.

I have installed Oracle 8i Enterprise on my Windows XP system. I was able to start up the database from svrmgrl and made a new database. Now when I try to connect to it with jsp using jdbc and Oracle thin drivers, I am getting an error, "connection reset by peer." When I type tnsping [sid name] from the dos prompt I get a "packet writer failure" error. Please help me. I am new to Oracle. Thanks in advance.
This type of error is usually indicative of either a bad network component or a firewall that is not allowing the connection. If you have a firewall, disable it and try connecting again. If this does not resolve the problem, there are a couple of other things to try.

Check that you have a tnsnames.ora file with your service name properly defined.

Try to tnsping the service name. If successful, it should look something like this:

C:>tnsping oratst01

TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 09-NOV-2005 21:41:21

Copyright (c) 1997, 2003, Oracle.  All rights reserved.

Used parameter files:
C:oracleproduct10.1.0db_1networkadminsqlnet.ora

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = C373)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORATST01)))
OK (30 msec)
Also, check that the listener is up and that your database has registered with the listener. At the command prompt, type:
lsnrctl status
You should see output similar to this and your instance registered with the listener:
C:>lsnrctl status

LSNRCTL for 32-bit Windows: Version 10.1.0.2.0 - Production on 09-NOV-2005 21:43:04

Copyright (c) 1991, 2004, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=c373)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 10.1.0.2.0 - Production
Start Date                09-NOV-2005 21:14:43
Uptime                    0 days 0 hr. 28 min. 20 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:oracleproduct10.1.0db_1networkadminlistener.ora
Listener Log File         C:oracleproduct10.1.0db_1networkloglistener.log

Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\.pipeEXTPROCipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=c373)(PORT=8080))(Presentation=HTTP)(Session=RAW))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=c373)(PORT=2100))(Presentation=FTP)(Session=RAW))
Services Summary...
Service "ORATST01XDB" has 1 instance(s).
  Instance "oratst01", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "oratst01" has 1 instance(s).
  Instance "oratst01", status READY, has 1 handler(s) for this service...
The command completed successfully
This was first published in November 2005

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