Tnsping/tnsnames question

Hi everyone,
I am having some trouble reaching a DB using tnsping utility on Solaris 5.10.
I have no issue connecting to this db (db1) using other PC's, but something about this configuration is messing it up. I should mention that there are currently 4 oracle installs on this machine, 9.2.0.8, 10.2.0.3, 10.2.0.4, and 11g (the most recent install).
It seems from the below that since the 11g install, tnsping & sqlplus are trying to use the 11g files, so I updated the tnsnames and sqlnet files.
here is the feedback from tnsping:
tnsping db1Used parameter files:
/opt/oracle/product/11g/11.1.0.6/network/admin/sqlnet.ora
TNS-03505: Failed to resolve name
sqlnet.ora
/admin$ pwd/opt/oracle/product/11g/11.1.0.6/network/admin
/admin$ cat sqlnet.ora# sqlnet.ora Network Configuration File: c:\apps\oracle\client\10.2.0\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT, LDAP)
tnsnames.ora
/admin$ cat tnsnames.ora# tnsnames.ora Network Configuration File: /opt/oracle/product/11g/11.1.0.6/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
LISTENER_aduh12 =
(ADDRESS = (PROTOCOL = TCP)(Host = fyr21.us.xyz.com)(Port = 1524))
db1 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP) (HOST = au101.ips.xyz.com)(PORT = 1521))
    (CONNECT_DATA =
      (SID = db1)
aduh12 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(Host = bsel71.us.xyz.com)(Port = 1524))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = aduh12.us.xyz.com)
)Any ideas why this does not work as expected? Any help would be appreciated. Thanks!

That's right :)
This machine does run several instances, but db1 is a remote service. I can tnsping from my windows laptop without trouble:
D:\Users\a275tet\My Documents\Rotation 4\Oracle\PERL>tnsping db1
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 05-AUG-2
008 15:13:09
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
D:\oracle\product\10.2.0\db_3\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = au101.ips.xyz.com)(PORT = 1521)) (CONNECT_DATA = (SID = db1)))
OK (220 msec)
I am trying to run some scripts on this server which will reach out and interface with the db1 database. They run fine on my local pc, but something is mixed up with the tns file on this server, even though I copied the same entry from my local tns file.

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Constructing a correct jdbc connection string

I am not particularly fluent in JDBC URL construction and though I have come up with many variations, I have so far failed to come up with the single variation that will work for my database :-)
I am running Oracle 10 and I have a connection to the target database in SqlDeveloper. Opening the properties of my existing connection, I observe that the type is TNS. Looking up the network alias specified in my tnsnames.ora I was then able to get the hostname, the service name, and the port (1521), and I observed that it said "Server=DEDICATED" though I don't appreciate the significance of that last item.
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jdbc:oracle:thin:<username>/<pwd>@<hostname>:1521:<servicename><servicename> is SID of databsae running on server and not your tnsname alias.
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Did you tried tnsping
c:\>tnsping <tnsnames.ora service alias>
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Connection takes a lot of time

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'tnsping' and see what is the response time?
tnsping TNSNAME
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Hi,
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I have 10.2.0.4 EE, RAC + Data Guard. From an app server, I issue the following:
+$tnsping database1+
TNS Ping Utility for Solaris: Version 10.2.0.4.0 - Production on 14-JAN-2013 12:37:36
Copyright (c) 1997, 2007, Oracle. All rights reserved.
Used parameter files:
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Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 172.19.246.142)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = 172.19.246.143)(PORT = 1521)) (LOAD_BALANCE = no) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = DATABASE1)))
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+$ls+
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It said it had used the tnsnames, so I went to take a look at it:
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+$ls+
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11gR2 Post-Upgrade Questions Regarding tnsnames, listener, pwd, and init

Hello.
Am planning on upgrading a significant # of RHEL5 10gR2 RAC and non-RAC DBs to 11gR2 (11.2.0.3.1, specifically). The servers are still not available to me, but I have been poring on the install and upgrade documents as well as referencing several blogs of users who have done them. I have almost literally read the guides verbatim. I will be using the DBUS - not doing a manual upgrade. Since I cannot test of the upgrade yet, I have a few questions related to POST_UPGRADE actions in terms of the listener, tnsnames, password, and init files.
1.) The upgrade document indicates on p 3-24, "DBUA then proceeds to create new configuration files (parameter and listener files) in the new Oracle home." Will the init file (assuming spfile will be copied as we are using one everywhere now) have deprecated parameters REMOVED after it is copied over to the NEW/TARGET home?
2.) While the install/upgrade guides do not call for it, several blogs indicate that the tnsnames and password files should be copied over from the old/source DB network/admin location ($TNSNAMES/admin) to the new/target DB /network/admin location. Do I need to do this or with the DBUA also copy them over? If all 4 files (tnsnames/listener/spfile/password) are copied over, I am not sure why the document doesn't indicate this.
3.) Other than the spfile being copied over and modified, I don't see any difference between the old/source and new/destination copies of the listener, tnsnames, and password file. Do you agree?
I am just trying to figure out what really need to be copied over and what doesn't in lieu of the DBUA doing it for me.
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Matt

page 3-24 corresponds to following
http://docs.oracle.com/cd/E11882_01/server.112/e23633/upgrade.htm#CHDDCBHG
which states
You must run the Oracle Net Configuration Assistant before running DBUA. See "Configuring the Listener When Upgrading from Oracle9i".
If you are upgrading an existing Oracle Enterprise Manager Database Control or if you are configuring a new Oracle Enterprise Manager Database Control for the new Oracle Database 11g release, then the listener must be running before upgrading Oracle Enterprise Manager. If DBUA detects that an Oracle Enterprise Manager upgrade or configuration is requested, and DBUA does not see a listener running, then it prompts you and starts the default listener in either of these cases.
running netca from new home results in creating a new listener.ora file, this could complain that listener is already used if the old listener is running with the same name or port (default 1521) taken.
I think the "+DBUA reloads the listener.ora file in both the old and new Oracle Database environments.+" which point c in that list has to be taken in context with the two previous points a, b, where the usecase is shown how services , entries are removed from one listener.ora file and added to another. So to make sure those services are started from the "now" correct home those listener.ora are reloaded.
If you look in the 11.1 upgrade guide this text is written as "DBUA removes the entry of the upgraded database from the old listener.ora file and reloads the listener of the old database." http://docs.oracle.com/cd/B28359_01/server.111/b28300/upgrade.htm#i1011982
If after the upgrade old oracle home is not used anymore (no database is running out of that) you can ignore the listener.ora on the old home.

Basic questions about tnsnames.ora

I think I am quite confused about tnsnames.ora file (this is about release 9.2).
- I was told that a tnsnames.ora file is only necessary in the server side when you need to connect to a different remote database, but if I do not have any entry in my server tnsnames.ora then, how can the listener know which services it has to listen to?
- I do not understand what "Dynamic service registration" is and how it can be used.
Sorry if the level of these questions is too low for this forum, but I have not found clear answers for them.

- The listener knows which services it has to listen
for by
static registration --> the database definition is in
listener.ora
dynamic registration --> the PMON process of the
database registers itself with the listener,
submitting the service_name parameter from the spfile
| init.ora
Tnsnames.ora is a client thingy, when connecting to
a remote database, the local database is a client
for the remote database.
Hth
Sybrand Bakker
Senior Oracle DBAThank you for the answer.
I made a wrong conclusion, my situation is this (there are 2 database instances in one server and the listener.ora has no list of services, so I must assume both instances are registered dynamically, am I wrong?):
I wrongly thought that the tnsnames.ora played some role in the server side because after restarting the listener I commented the entries in the server tnsnames.ora and the listener had no service registered, then I uncommented those entries and I saw that then the listener had those services registered. I guess that what it actually happened is that it takes a little time for the listener to register dynamically after it is restarted, can it be the case?
I have read both init.ora files but I cannot see what parameter is set to register dynamically, maybe it is only defined at spfile level. Can someone tell me what parameters must I look for?
One more question. I have been asked if a database must be restarted to work ok when the server ip is changed (I suppose it is done without shutting the server down). Does someone know? Should the listener also be rebooted?
Thanks again.

Tnsnames.ora General Question

We are experiencing a problem that many different users seem to have many different versions of tnsnames.ora. We want to create our "gold" version and ensure that everyone uses the same one. Two questions:
1. Is the "alias" that you give each connection case sensitive? For instance if I name one connection Prod is that the same as PROD?
2. At another place I worked I was under the impression that most applications (PL/SQL Developer for sure) uses the Windows PATH environment variable to locate tnsnames.ora by going through all directories listed in the variable and using the first occurrence of tnsnames.ora that it found. Through a little testing and renaming and such I have found that this doesn't appear to be the case. We are using ADI, Discoverer, different development tools, etc and would like to avoid having more than one location where the file is stored. What is the best way around that or is there a way? I assume that it depends somewhat on each application.
Thanks in advance for the help!

PL/SQL Developer Help->Support Info TNS Names tab shows that C:\oracle\ora92\network\admin\tnsnames.ora is used as my tnsnames.ora for the application. I don't have an ORA_HOME environment variable. So where is it coming from? The path above is in my PATH variable.
So it is different for every application?
I don't have TNS_ADMIN environment variable either.
Sorry for the dumb questions. I just want to be 100% clear.
Message was edited by:
mateoc15

Tnsping can't read tnsnames.ora TNS-12533: TNS:illegal ADDRESS parameters

Here's my tnsnames.ora. tnsping thinks it's illegal:
acsplan =
(DESCRIPTION=ACSPLAN
(ADDRESS_LIST =
          (ADDRESS=(PROTOCOL=tcp)(HOST=10.101.205.166)(PORT=1521))
(CONNECT_DATA=(SID=ACSPLAN))
Why does tnsping think this is illegal?
Thanks.
Dean

Dean Schulze wrote:
Here's my tnsnames.ora. tnsping thinks it's illegal:
acsplan =
(DESCRIPTION=ACSPLAN
(ADDRESS_LIST =
          (ADDRESS=(PROTOCOL=tcp)(HOST=10.101.205.166)(PORT=1521))
(CONNECT_DATA=(SID=ACSPLAN))
Why does tnsping think this is illegal?Does this work?
acsplan =
   (DESCRIPTION=
     (ADDRESS_LIST =
          (ADDRESS=(PROTOCOL=tcp)(HOST=10.101.205.166)(PORT=1521))
     (CONNECT_DATA=(SID=ACSPLAN))
   )

A question about tnsnames.ora

I have a question about tnsnames.ora file. I have two address entries in the tnsnames.ora, one is with protocol:ipc, the other is with protocol:tcp. The log file always tells me the hostname is UNKNOWN. I changed the hostname alias into ip address, but the error stills exists. But there isn't any other error of the running of database. Because I don't need to access database from remote client, thus I think if I delete the address entry of the hostname won't interrupt the running of database. So I delete it from the tnsnames.ora file. But the error stills exists. I am not familiar with Oracle. So could anyone help me to solve the problem or give me some ideas about it? Thanks.

Hi,
That tnsnames.ora file is the descriptor that resolves the service name to the correct host address. That line ADDRESS is the locator for the listener on the server which then determines if a session is granted or not. You cannot forget the sqlnet.ora file either. This sets the type of connection that the client is going to be involved in: either a HOST,TNSNAMES OR
ONAMES. You also must check to see if the listener is turned on. This is a common error. But I dont think it is in this case. Judging by the hostname error message Id say you dont have the correct host name. That can be found in the init.ora file under db_name parameter. I suggest that you do some reading on this subject in the networking documentation. It is all very well explained there. There is more to this relationship than I touched upon here.
Hope this helps.

TNSNAMES syntax question: =ON or =YES

Is there any difference (10g r2.0.3) between FAILOVER=ON and FAILOVER=yes
or
LOAD_BALANCE=ON and LOAD_BALANCE=yes ???
I see oracle documentation specifying =ON as the value for both, but plenty of forum threads and examples with =yes present. Confusing to me while researching as part of troubleshooting.

Hi,
Pls see the old thread on same topic.
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Regards,
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http://oracleracexpert.blogspot.com
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NetCA fail to create TNSNAME file

I installed Oracle11gR2 GRID and RAC on two nodes(windows2008R2): I did some modification for supporting TAF failover.
when I do "tnsping" I got an error like:
C:\Users\administrator.QAPF2>tnsping NLQA
TNS Ping Utility for 64-bit Windows: Version 11.2.0.3.0 - Production on 16-APR-2
012 17:04:37
Copyright (c) 1997, 2011, Oracle. All rights reserved.
Used parameter files:
C:\app\11.2.0\grid\NETWORK\ADMIN\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION =
TNS-12533: TNS:illegal ADDRESS parameters
From oracle forum, there were many discussions on this error: due to some bad characters in tnsnames.ora file.
They suggest to use NetCA to create it, I tried as follow but I got another(maybe same) error:
Connecting...ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
The test did not succeed.
Current node1 status:
C:\Users\administrator.QAPF2>srvctl config service -d ORCL -s NLQA
Service name: NLQA
Service is enabled
Server pool: ORCL_NLQA
Cardinality: 2
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: true
Failover type: SELECT
Failover method: BASIC
TAF failover retries: 180
TAF failover delay: 5
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: orcl2,orcl1
Available instances:
C:\Users\administrator.QAPF2>srvctl status service -d ORCL -s NLQA
Service NLQA is running on instance(s) orcl1
My TNSNAME.ora file:
NLQA =
(DESCRIPTION =
(LOAD_BALANCE = ON)
(FAILOVER = ON)
(ADDRESS = (PROTOCOL = TCP)(HOST = ORARAC1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = ORARAC2-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = NLQA)
(FAILOVER_MODE = (TYPE = SELECT)(METHOD = BASIC)(RETRIES = 180)(DELAY = 5))
listener.ora file:
LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))          # line added by Agent
LISTENER_SCAN3=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN3))))          # line added by Agent
LISTENER_SCAN2=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN2))))          # line added by Agent
LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))          # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON          # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN2=ON          # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN3=ON          # line added by Agent
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON          # line added by Agent
I can not connect to the OracleRAC server from client. Please help me.
Thanks

I started the database. still have the same problem on tnsping.
I am not clear what is the correct procedure to configure TAF on client side or server.
I added a service for TAF on the server node1:
>srvctl add service -d ORCL -s NLQA -q TRUE -m BASIC –P BASIC -e SELECT -r orcl1 -z 180 -w 5 -j LONG
>srvctl add service -d ORCL -s NLQA –u -r orcl2
>srvctl start service -d ORCL -s NLQA
Also, I modified the tnsnames.ora file on server and client(both are same copy) as shown on my first question page.
question1: I want to support client side failover with TAF, DO I need both as shown above? any more change or addition?
question2: To support server side failover, shouldn't I modify tnsnames.ora on server side then copy it to the client side?
Also, what should I add or provide more?
question3: My client application could not handle FAN(any failover feature: we do not want to change on any client code),
Could we support the client side TAF with JDBC-OCI and tnsnames.ora? we have been using JDBC thin driver.
Here are new information after I started the database:
C:\Users\administrator.QAPF2>lsnrctl status
LSNRCTL for 64-bit Windows: Version 11.2.0.3.0 - Production on 17-APR-2012 10:14
:00
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 64-bit Windows: Version 11.2.0.3.0 - Produ
ction
Start Date 16-APR-2012 16:59:19
Uptime 0 days 17 hr. 14 min. 41 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\app\11.2.0\grid\network\admin\listener.ora
Listener Log File C:\app\11.2.0\grid\log\diag\tnslsnr\orarac1\listener\a
lert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\LISTENERipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.23.57.31)(PORT=1521)))
Services Summary...
Service "NLQA.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orcl.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
C:\Users\administrator.QAPF2>lsnrctl service
LSNRCTL for 64-bit Windows: Version 11.2.0.3.0 - Production on 17-APR-2012 10:16
:40
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
Services Summary...
Service "NLQA.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:22 refused:0 state:ready
LOCAL SERVER
Service "orcl.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:22 refused:0 state:ready
LOCAL SERVER
Service "orclXDB.qapf2.qalab01.nextlabs.com" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: ORARAC1, pid: 5724>
(ADDRESS=(PROTOCOL=tcp)(HOST=orarac1.qapf2.qalab01.nextlabs.com)(PORT=6
4895))
The command completed successfully

Tnsping/tnsnames question

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