Server Administration :: Clients Can't Connect To Database - ORA-12560
Nov 28, 2011
Since 13.00 hours, my clients can't connect to the database, and hence cannot access their application.
They get a ORA-12560 error. protocol adapter.
What I have discovered and done so far.
1. I can tnsping dbname -> OK.
2. I have rebooted both application server and databaseserver multiple times
3. I haven't touched tnsnames.ora, sqlnet.ora and listener.ora and they look to be in perfect mint condition.
4. I have full access to access the database instance via web.
5. I can connect to the database instance via sql
6. I have restarted the oracle-services: oracleDBConsoledbname, OracleOraDb20g_home1TNSListener and OracleServicedbname
7. I have rebooted the client computers, and the file server.
8. I don't see any errors in event logs, both on file server, client computer and database-server.
9. When I press down the link Listener, I get Metric Collection Error, which means I might not access it?
10. The only alert I find is that filesystem D: only has 15.62% available space.
They have been using the database for a very long time without any trouble, and suddenly boom.What do I do? How do I check things?
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Feb 7, 2013
In one machine I have windows xp with Oracle 11.2.0.2 database installed and I am able to connect to the database using both sql developer and sql plus.
In another machine I have windows 7. I installed Oracle client 11.2.0.1, then using Net configuration tool, I installed both listener.ora and tnsnames.ora files.
Now, I want to connect to the database which is installed on windows xp from windows 7 using the oracle client. When I tried to connect, I got the following error :
ERROR:ORA-12560: TNS:protocol adapter error
In order to rectify the above error, I was making sure that ORACLE_HOME AND ORACLE_SID were properly set in the regedit file (under HKEY_LOCAL_MACHINE > SOFTWARE > ORACLE). The ORACLE_HOME was set properly. But I found ORACLE_SID missing. So I added ORACLE_SID environment variable in the registry and re-tried connecting to the database. But I am not able to connect. What else should I do in order to connect?
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Dec 20, 2011
i want to create new database in oracle 10g, i follow following steps.
C:ORACLE_SID=ALI
THEN create passwordfile
orapwd file=orapwdALI.ora password=ali entries=6
then create oracle instance
C:Oradim -new -sid ALI -STARTMODE AUTO
after that i use
SQLPLUS /NOLOG
THEN i write the command to connect to user ali but
CONNECT SYS/ali as sysdba
it display following message.
Error
ORA-1256: TNS: protocol adapter.
i also check the oracle services from "services.msc", where oracle instance is "start".
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Apr 20, 2011
We installed Oracle 11g on solaris machine but some of the configuration failed.
When verified in tracelog we are finding below error message:
PRCT-1003 : Failed to run "getcrshome" on node "localnode"
at oracle.cluster.deployment.ClusterwareInfo.getConfiguredCRSHome(ClusterwareInfo.java:423)
at oracle.sysman.assistants.util.hasi.HAUtils.getCRSHome(HAUtils.java:546)
at oracle.sysman.assistants.util.hasi.HAUtils.getHASHome(HAUtils.java:606)
at oracle.sysman.assistants.util.hasi.HAUtils.isHASConfigured(HAUtils.java:347)
at oracle.sysman.assistants.dbca.ui.DBCAWizard.<init>(DBCAWizard.java:452)
[code]....
We then tried to create instance but came up with below error:
ORA-12560: TNS Protocol Adapter Error..We have another database version 10.2.0.3 running on the same server and needs to be continued.
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Nov 27, 2010
When connecting to Oracle Db as sysdba the following error message occurs.
-bash-3.00$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sat Nov 27 00:34:55 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> conn sys/sys as sysdba
ERROR:
ORA-12560: TNS:protocol adapter error
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Nov 27, 2010
I have installed a database in D drive. I want to create another database in the same machine. I tried installing the new database using DBCA. Installation was ok. I added entry in TNS file.
When i try to login to this new database from other machine, i am unable to connect to this database. I made an entry in TNS on my local machine. It says the user id /password is wrong, even though they r correct. I am using the same password to delete the database.
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Sep 26, 2013
I migrated one database ( DB1) from old database server to new database server where user accounts were locked before migrating the database.But migration was successful and database and accounts got created in new database server.
In old database server , user accounts status is locked and in new database server user accounts are open but still i am unable to connect to database using new user in new database server.
why im unable to connect to database whose accounts are open?
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Oct 19, 2012
last two years i am using oracle 9i in windows 2003 server but now i installed oracle 10g on another server (PC) , i want to connect 9i to 10g with same database and user .
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Apr 15, 2012
I want to install Oracle EE 11gR2 on my Windows 7 Professional 64-bit laptop. Installed memory is 8GB.I need to install 32-bit server since Oracle Warehouse Builder will not run on a 64-bit o/s. Further, I use Toad 9.7.2 which will only recognise client 32-bit.
I had a few failed attempts, especially when the database was being created with the ORA-12560: TNS:protocol adapter error,
So here's what I did:
Changed C:WindowsSystem32driversetchosts so that it contains two lines 127.0.0.1 localhost & ::1 localhost
Changed properties of setup.exe in the installation directory to be Windows XP SP2 compatible and run as administrator
Selected "install database software only" (so I could figure out at what step the installation fails)
Selected "single instance"
Selected "Enterprise Edition"
Selected oracle base "c:app" (instead of default location c:appd_seng)
Copy of files was completed successfully, log file was created in c:program files(x86)oracleinventorylogs & registry entries were added to "HKEY_LOCAL_MACHINESOFTWAREWow6432NodeORACLE" (with keys KEY_OraDb11g_home1, ODP.NET & OracleMTSRecoveryService), and the following services were created:
OracleMTSRecoveryService: Started/Automatic
OracleOraDb11g_home1ClrAgent: Not started/Manual
OracleRemExecService: Started/Disabled
There are no listener.ora & tnsnames.ora yet. Sqlnet.ora is created with the line SQLNET.AUTHENTICATION_SERVICES = (NTS)
Now I went to Start, All Programs, Oracle - OraDb11g_home1, Configuration and Migration Tools, right clicked on "Net Configuration Assistant" and changed the properties to be Windows XP SP2 compatible and run as administrator and ran it. I selected "Listener Configuration", added a listener called LISTENER, TCP protocol, port 1521 and finished. A service called "OracleOraDb11g_home1TNSListener" was created and started in automatic mode. The PATH was updated and listener.ora was created with the lines:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:appproduct11.2.0dbhome_1)
[code]...
Tnsnames.ora is also creaed with the contents:
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
At the command prompt, lsnrctl.status shows:
LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on 15-APR-2012 12:42
:19
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DSG-HP6555b)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Produ
ction
Start Date 15-APR-2012 12:37:54
[code]...
At the command prompt, lsnrctl.services shows: LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on 15-APR-2012 12:43:15
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DSG-HP6555b)(PORT=1521))
)
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
The command completed successfully Now I went to start, all programs, Oracle - OraDb11g_home1, Configuration and Migration Tools, right clicked on "Database Configuration Assistant" and changed the properties to be Windows XP SP2 compatible and run as administrator and ran it.
I chose to create a databaseGeneral purpose Global database name ORCL SID ORCL Chose "Configure Enterprise Manager" & "Configure Database Control for local management" and disabled "Automatic maintenance tasks" Used the same password for all accounts
Selected storage type "File System" & "Use Database File Locations from Template" Unchecked Flash Recovery & Archiving Selected "Sample Schemas", "Typical" memory size (1228MB), "Use Automatic Memory Management" Left sizing/character sets/connection mode as default, and Selected "Generate Database Creation Scripts" in C:appadminORCLscripts (if I choose to Create Database, it fails with TNS Protocol Adapter Error).
I now open ORCL.bat in an editor, go to command prompt, create the directories as per the file, set ORACLE_SID=ORCL & path.
Running C:appproduct11.2.0dbhome_1inoradim.exe -new -sid ORCL -startmode manual -spfile gives a message "instance created" & services "OracleJobSchedulerORCL", "OracleVssWriterORCL" (started) & "OracleServiceORCL" (started) are created.
The next step C:appproduct11.2.0dbhome_1inoradim.exe -edit -sid ORCL -startmode auto -srvcstart system give an error "Unable to start service, OS Error 1056" (probably implies services already running), nothing is present in the windows alert logs about this. If I stop the service OracleVssWriterORCL, then this command completes, although no messages are returned.
The next step in the batch file starts sqplus /nolog and calls ORCL.sql.
ORCL.sql accepts passwords for sys, system, sysman & dbsnmp. It then executes host C:appproduct11.2.0dbhome_1inorapwd.exe file=C:appproduct11.2.0dbhome_1databasePWDORCL.ora force=y, which prompts me for the password for sys.
ORCL.sql then calls CloneRmanRestore.sql, which then tries to run connect "SYS"/"&&sysPassword" as SYSDBA
This is when I get the error ORA-12560: TNS:protocol adapter error, which has been haunting me for days.
My gut feel is that the database creation step at sqlplus is unable to recognise the listener...or probably it does not recognise the modified registry location (with Wow6432Node), the file oracle.key in C:appproduct11.2.0dbhome_1BIN shows the string SOFTWAREORACLEKEY_OraDb11g_home1.
I then changed oracle.key to point to SOFTWAREWow6432NodeORACLEKEY_OraDb11g_home1, restarted the listener and ORCL service, but connecting as sys returns the same error.
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Jan 16, 2012
i create new database (Student) using command line, now i want to connect with newly created database (using sys as sysdba), but again it directly connected with old database (ORCL). So what should i do to connect with newly created database (Student).
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Aug 14, 2010
i have win 2008 server and oracle 10g when im try to install oracle it terminate successfully but when insall domain controller in windows , oracle dont terminate the installation and break in creating data base (2%) and return the error message : ora-12560 tns adaptator protocol error
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Apr 29, 2012
all of the client cann't connect the db,and using sqlplus / as sysdba also cann't login there are many error of TNS-12535 and in the listener.log
alert.log:
Sun Apr 29 18:10:36 2012
opidcl aborting process unknown ospid (42992060) as a result of ORA-604
Sun Apr 29 18:10:54 2012
opidcl aborting process unknown ospid (26280196) as a result of ORA-604
[code]...
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Jun 29, 2013
I'm trying to connect a oracle client application on the client machine to a remote oracle server on the server machine but i get a connection fail.
On the server machine I configured oracle server in the following way:
Installed oracle server. Created a database "DB_Test" with the database configuration assistant Created a LISTNER with the Oracle NET Manager with the following parameter:
Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521 Created "dbtest" service with the Oracle NET Manager with with the following parameter:
Service Name: "dbtest" Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521
All services on the server machine are running and I opened port number (1521) in the router. On the client machine I installed SQL PLUS and SQL Developer.
With SQL Plus as by the official documentation I have entered the following command:
CONNECT username/password@[//]host[:port][/service_name]. In my case is:
CONNECT SYSTEM/oracledb@//ENZOVAIO:1521/testdb.
With SQL Developer I have entered the same parameter.
But with both SQLPlus and SQL Developer the connection fails.
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Aug 10, 2010
we have oracle server. we have to connect 500+ client machine to oracle server.
is it i need to install client version to all 500+ or any other shortcut way?
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Nov 22, 2012
1-How much memory is needed to use the Oracle 11g Enterprise Manager? (Probabely other parts need less memory than EM)
2-When i try to connect to Oracle 11g , get the following error?
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Sep 16, 2010
I am getting this error ( ORA-12516: TNS:listener could not find available handler with matching protocol stack ) When I am trying to connect to the server through my application in which I am using SOAP
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May 11, 2011
Getting the below message even after doing the
oracle@ttlwaurd001:~$ ps -ef | grep pmon
oracle 7779 1 0 Feb08 ? 00:00:07 ora_pmon_WGRGOLD1
oracle 10155 1 0 Feb20 ? 00:30:48 ora_pmon_DPTLS01
oracle 12354 1 0 Feb20 ? 00:00:53 ora_pmon_DOEMS01
oracle 17902 1 0 Feb20 ? 00:00:13 ora_pmon_DREPS01
oracle 23745 23360 0 19:51 pts/4 00:00:00 grep pmon
oracle@ttlwaurd001:~$
oracle@ttlwaurd001:~$ sqlplus '/as sysdba'
SQL*Plus: Release 11.2.0.1.0 Production on Wed May 11 19:49:54 2011
Copyright 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
oracle@ttlwaurd001:~$ echo $ORACLE_SID
DPTLS01
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Apr 21, 2011
We are unable to connect to Oracle 11.1.0.7.0 from Oracle Forms 4.5..However we are able to connect using Oracle forms 6i
Now Forms 4.5 is old and not supported, however apart from Tests I will need prove it to the higher ups...Do we have any link, document which will cover such compatibility issue?
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Jul 21, 2011
now DB is hanging; i am not able to connect both SQL and RMAN prompt. Is it possibel to move some old archives using ASMCMD prompt to datafile mount point location? Once i got some free space, then i can try connect RMAN and fire my script manually to take the backup and delete the same. ....
ASMCMD [+QSTAGE_T1_BACKUP_01/QSTAGE/ARCHIVELOG] > ls -ltr
cdType Redund Striped Time Sys Name
Y 2011_07_15/
Y 2011_07_16/
Y 2011_07_17/
Y 2011_07_18/
Y 2011_07_19/
Y 2011_07_20/
i have free space at mount point : +QSTAGE_T1_DATA_01/QSTAGE/DATAFILE
i need to backup the archives first before deletion..as those are required for Streams.
backup script:
run {
backup archivelog all delete completed before 'sysdate-1';
}
note: i would like to remove the file which are older than one day
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Feb 23, 2009
I do not know how to create a connection between oracle to SQL server using topology manager on my application. I understand that I must create a logical and physical architecture to create the connection and the logical and physical architecture is running under topology manager.
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Jun 25, 2013
how to connect to sql server databases via toad. I have used toad to connect to oracle databases, but never to a sql server database. To connect to an oracle database, we first install the client and then add the tnsentry of the database to the tnsnames.ora file and then we can directly connect to the oracle database right?So I was wondering if there are any steps like that to be followed to connect to the sql server databases.
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Sep 3, 2010
From alert log,
<msg time='2010-09-03T11:37:46.548+06:00' org_id='oracle' comp_id='rdbms'
client_id='' type='UNKNOWN' level='16'
host_id='DC-DB-01' host_addr='192.168.100.101' module=''
pid='24310'>
<txt>Error 12160 received logging on to the standby
[code]...
From trace file,
[oracle@DC-DB-01 ~]$ less /u01/app/oracle/diag/rdbms/bddipdc/bddipdc1/trace/bddipdc1_arcq_24310.trc
Redo shipping client performing standby login
OCIServerAttach failed -1
.. Detailed OCI error val is 12160 and errmsg is 'ORA-12160: TNS:internal error:
\
[code]...
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Nov 4, 2010
I installed Oracle 10g (10.1) in Windows Server 2003 and i am able to connect to oracle using using SQL net. But when I tried to connect this using SQL Net from Windows XP, I am getting ORA-12560: TNS:protocol adapter error. But when I tried to connect as SYSDBA user, I am able to login in SQL plus. But for a normal user, not able to log in.
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Oct 6, 2010
I have the following computer/setup:
Acer laptop, Intel Processor w/ Windows 7 Professional (64-bit)
Delphi 2010 Professional
Oracle XE (+ the Oracle XE client that comes with it)
I cannot can't to the Oracle database from Delphi. The error I keep getting is:
Alias is not currently opened. [Oracle][ODBC][Ora]ORA-12154:TNS: could not resolve the connet identifier specified.
Here's what I've done:
1. Create an ODBC connection to my Oracle database
- run C:WindowsSysWOW64odbcad32.exe to open the ODBC administrator.
- Data source name: bt_user
- TNS Server Name: localhost/xe
- user bt_user
- Clicked "test connection" -- Success.
2. Open Delphi and drop a TDatabase component on my main form.
- Set the Alias Name property to "bt_user" (the alias I set up in ODBC)
- Set database name to "bt_user".
- Checked "connected".
Alternatively, I tried using the Delphi ADO components (the dbGo components).
- Drop TADOConnection component on my form.
- Select "connection string" and open the dialog.
- Click "build string".
- Select "Microsoft OLE DB Provider for ODBC Drivers" from the selection.
- In "use data source", select "bt_user" from the drop-down list (my ODBC connection from #1)
- Click "test connection".
Again the same error.
My questions are:
1. Can Delphi work with Oracle XE (Express Edition)?
2. If so, then do I need to install the "Instant Client"?
3. Will the instant client for Oracle 10g work with Oracle 10g XE?
4. Do I need to install any additional ODBC driver(s)?
5. Why was I successful in creating the ODBC connection in Windows, but it failed in Delphi?
6. Will Visual Studio.NET (C#) work with Oracle XE, and what are the steps for setting that up?
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Mar 26, 2011
i am installing oracle database 8.1.7 on dell server power edge 2650 first time database successfully installed but when i want to crate new database by Database Configuration Assistant it is not working for new database creation.
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Jan 11, 2011
i am trying to install Oracle 10.10.2.0 on Windows Server 2003 standard x64 Edition Service Pack, but when i try to run the installer or open DVD it gives me below error.
"The image file D: is Valid, but is for a machine type other than the current machine."
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Oct 31, 2012
I have to migrate production database version 10gR2 on windows 2003 server to oracle 11gR2 on windows 2008 server . So far i have just installed the oracle software on 64bit windows 2008 server. How to move the data or migrate from old server to new server .
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Feb 13, 2013
I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server.
2. I invoked "sqlplus" from another unix box to login to the database.
3. I found that the process id (ps -ef |grep sqlplus).
4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID,
SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM,
SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID
FROM
SYS.GV_$PROCESS, SYS.GV_$SESSION
WHERE
SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST'
and SYS.GV_$SESSION.MACHINE like '%hostname%'
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Apr 18, 2011
I have database in single server. I already have ORACLE_SID=stagedb. So i want to create new sid and named as proddb.Is it possible have multiple db in single server? This server not running as RAC. It run as single only.
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Apr 30, 2012
database administration , we are planning to use amazon cloud database , this database does not allow us to login to server machine , unfortunately amazon don't provide ssh to this machine , in general for doing any of adminstration task on the database will there be need to log into the machine ? we can always log in through toad or any other sql client but we cannot do ssh to server..general can this limitation effect administration ?
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