Ora - 12170 - Connection Timeout

Hi,
Problem - I am using TOAD on my machine to connect to my database, but giving the error "Ora-12170, Connection Timeout".
Explanation - I have installed Oracle InstantClient 10.2 on local machine and using that home as default home to connect to target instance.
Here the thing is , I can able to PING to the UNIX box but can't able to make Database connection.
Have made PATH, LNS_LANG system variables...
Have created TNSNAME.Ora in instantClient with proper entries.
Any help is like wind of heaven... stucked here for long time...
Thanks & regards,
Madhav
Edited by: user13155845 on May 31, 2010 2:48 AM

do it in command promt.
tnsping EONVIS_11
if you are getting error while doing tnsping then port 1521 is not open or may be firewell issue.
if sqlnet.ora file in not there create it like this in ORACLE_HOME/network/admin location
for windows
# sqlnet.ora Network Configuration File: D:\oracle\product\10.1.0\db_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES,EZCONNECT,NAMES)
for unix
# sqlnet.ora Network Configuration File: D:\oracle\product\10.1.0\db_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
NAMES.DIRECTORY_PATH= (TNSNAMES,EZCONNECT,NAMES)
Edited by: PrafullaNath on May 31, 2010 3:36 PM

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Sunny, it's as follows:
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Edited by: Renjith2 on May 9, 2011 3:22 PM

Ora- 3135 , connection timeout

Hi Experts,
I'm having a 2 node RAC, 11.2.0.3 on AIX.
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Handling the ORA-12170: TNS:Connect timeout in a procedure

Post moved to:
Handling the ORA-12170: TNS:Connect timeout in a procedure
Edited by: John_75 on Jun 28, 2010 9:33 AM

http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/troublestng.htm#i440403
will give you
http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/troublestng.htm#CEGEDBIE

ORA-12170:TNS:Connect timeout occurred

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ORA-12170:TNS:Connect timeout occurred
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/* Error:     ORA-12170 (ORA-12170)
Text:     TNS:Connect timeout occurred
Cause:     The server shut down because connection establishment with a
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Unable to connect SQL State=S1000 [Oracle][ODBC][Ora]ORA-12170:

Hi all,
I have an Windows XP OS with SP3.
I have installed the Oracle 11g server.
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Unable to connect SQL State=S1000 [Oracle][ODBC][Ora]ORA-12170: TNS: Connect timeout occured
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Copyright (c) 1997, 2007, Oracle. All rights reserved.
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841683 wrote:
Hi,
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Connection timeout error while refreshing a deski report

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Hi,
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Hi,
I have installed oracle 10g in my system.
the tnsnames.ora file contails the following:
TEST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = test)
and sqlnet.ora file contains :
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
when i'm trying to login from SQLPLUS as:
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SQL*Plus: Release 10.2.0.1.0 - Production on Wed Sep 10 09:47:56 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12170: TNS:Connect timeout occurred
Enter user-name: sys as sysdba
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>
But i coudnot connect to Enterprise manager and through Toad because it tells as "TNS:connect timeout occured".
From enterprise manager it shows the instance,listener are down.
trying to start up the instance shows as "not connected to oracle".
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Thanks,
Souvik

user10223265 wrote:
This may help
http://www.errorkey.com/search/Index.aspx?q=TNS-12541
Is this the best you have to offer? I see you keep on posting "+answers+" using this URL. Well, if this is all you have to offer it is pretty pathetic. Please do not bother as there are many here that will actually make an effort to assist the person with the problem. We do not want you to sprain a finger or break a nail looking up the errorkey URL for yet another error code.
Re: why handling ora-01722 with pl/sql not works ???

ORA-12170 and TNS-12535

Hi everyone
My servers are in a separate location and we are accessing our databases from my office.
The developers say that they couldn't access one particular db from their machine.
The errors they receive when they try to connect using some tool is:
TNS-12535 TNS:operation timed outWhen I request them to TNSPing or when they access from Sql Plus(instant client), this is the error they receive:
ORA-12170: TNS:Connect timeout occurredOne of the developers are using Oracle XE and he too faces the same scenario.
So, where should I trace this problem from.
We all could ping to the machine where the Oracle resides.
Please advice.
Thanks in advance.

I have done a trace on the client side and here is the output:
--- TRACE CONFIGURATION INFORMATION FOLLOWS ---
New trace stream is C:\temp\sqlnettrace_3860_1.trc
New trace level is 16
--- TRACE CONFIGURATION INFORMATION ENDS ---
--- PARAMETER SOURCE INFORMATION FOLLOWS ---
Attempted load of system pfile source C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Parameter source loaded successfully
Attempted load of local pfile source C:\Program Files\Gyrasoft\SQL Samurai For Oracle\sqlnet.ora
Parameter source was not loaded
-> PARAMETER TABLE LOAD RESULTS FOLLOW <-
Successful parameter table load
-> PARAMETER TABLE HAS THE FOLLOWING CONTENTS <-
   TRACE_UNIQUE_CLIENT = ON
   TRACE_DIRECTORY_CLIENT = C:\temp
   SQLNET.AUTHENTICATION_SERVICES = (NTS)
   TRACE_TIMESTAMP_CLIENT = ON
   TRACE_LEVEL_CLIENT = 16
   TRACE_FILE_CLIENT = SQLNetTrace
--- PARAMETER SOURCE INFORMATION ENDS ---
--- LOG CONFIGURATION INFORMATION FOLLOWS ---
Log stream will be "C:\Program Files\Gyrasoft\SQL Samurai For Oracle\sqlnet.log"
Log stream validation not requested
--- LOG CONFIGURATION INFORMATION ENDS ---
nlstdipi: entry
nlstdipi: exit
nigini: entry
nigini: Count in the NL global area is now 1
nigini: Count in NI global area now: 1
nrigbi: entry
nrigbni: entry
nrigbni: Unable to get data from navigation file tnsnav.ora
nrigbni: exit
nrigbi: exit
nigini: exit
niqname: Hst is already an NVstring.
niqname: Inserting CID.
niotns: entry
snsbitini_ts: entry
snsbitini_ts: normal exit
snsbitini_ts: entry
snsbitini_ts: normal exit
niotns: Not trying to enable dead connection detection.
niotns: Calling address: (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.x.xx)(PORT=1521)))(CONNECT_DATA=
(SERVER=DEDICATED)(SERVICE_NAME=test)(CID=(PROGRAM=C:\Program Files\Gyrasoft\SQL Samurai For Oracle\SQLSamuraiForOracle.exe)(HOST=Machine1)(USER=11111))))
nscall: entry
nsmal: entry
nsmal: 212 bytes at 0x98e50b0
nsmal: normal exit
nscall: connecting...
nladini: entry
nladini: exit
nladget: entry
nladget: exit
nsc2addr: entry
nsc2addr: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.x.xx)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)
(SERVICE_NAME=test)(CID=(PROGRAM=C:\Program Files\Gyrasoft\SQL Samurai For Oracle\SQLSamuraiForOracle.exe)(HOST=Machine1)(USER=11111))))
nttbnd2addr: entry
snlinGetAddrInfo: entry
snlinGetAddrInfo: exit
nttbnd2addr: using host IP address: xxx.xxx.x.xx
snlinFreeAddrInfo: entry
snlinFreeAddrInfo: exit
nttbnd2addr: exit
nsc2addr: normal exit
nsopen: entry
nsmal: entry
nsmal: 736 bytes at 0x98e6380
nsmal: normal exit
nsopenmplx: entry
nsmal: entry
nsmal: 1644 bytes at 0x98e7fc0
nsmal: normal exit
snsbitini_ts: entry
snsbitini_ts: normal exit
nsiorini: entry
nsbal: entry
nsbgetfl: entry
nsbgetfl: normal exit
nsmal: entry
nsmal: 84 bytes at 0x98e5218
nsmal: normal exit
nsbal: normal exit
nsiorini: exit (0)
nscpxget: entry
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nscpxget: normal exit
nsopenalloc_nsntx: nlhthput on mplx_ht_nsgbu:ctx=98e6380, nsntx=98e7fc0
nsopenmplx: normal exit
nsopen: opening transport...
nttcon: entry
nttcon: toc = 1
nttcnp: entry
nttcnp: creating a socket.
nttcnp: exit
nttcni: entry
nttcni: trying to connect to socket 900.
ntt2err: entry
ntt2err: soc 900 error - operation=1, ntresnt[0]=505, ntresnt[1]=60, ntresnt[2]=0
ntt2err: exit
nttcni: exit
nttcon: exit
nserror: entry
nserror: nsres: id=0, op=65, ns=12535, ns2=12560; nt[0]=505, nt[1]=60, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
nsopen: unable to open transport
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nsiocancel: entry
nsiofrrg: entry
nsbfr: entry
nsbaddfl: entry
nsbaddfl: normal exit
nsbfr: normal exit
nsiofrrg: exit
nsiocancel: exit
nsopenfree_nsntx: nlhthdel from mplx_ht_nsgbu, ctx=98e6380 nsntx=98e7fc0
nsiocancel: entry
nsiofrrg: entry
nsiofrrg: exit
nsiocancel: exit
snsbittrm_ts: entry
snsbittrm_ts: normal exit
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nsmfr: entry
nsmfr: 1644 bytes at 0x98e7fc0
nsmfr: normal exit
nsmfr: entry
nsmfr: 736 bytes at 0x98e6380
nsmfr: normal exit
nsopen: error exit
nsclose: entry
nsclose: normal exit
nladget: entry
nladget: exit
nsmfr: entry
nsmfr: 212 bytes at 0x98e50b0
nsmfr: normal exit
nladtrm: entry
nladtrm: exit
nscall: error exit
nioqper: error from nscall
nioqper:    ns main err code: 12535
nioqper:    ns (2) err code: 12560
nioqper:    nt main err code: 505
nioqper:    nt (2) err code: 60
nioqper:    nt OS   err code: 0
niomapnserror: entry
niqme: entry
niqme: reporting NS-12535 error as ORA-12535
niqme: exit
niomapnserror: exit
niotns: Couldn't connect, returning 12170
nioqer: entry
nioqer: incoming err = 12170
nioqce: entryCould someone please throw some light on this?

Ora 12170 tns delai

dear all ,
I have a problem connecting my client to a the ORCL database on a small lan in my lab, first i get a timeout ORA-12170, after that i figured out that i am using a firewall , so i deactivated it , so it works fine.
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-which port do i have to open?
-if the port changes dynamically how could i deal with that ?
thanks in advance.

for 1st point
- Open "Net Manager" --> Local --> Listener --> Select the listener_name
then "Add Address" with different ports.
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LISTENER =
(DESCRIPTION_LIST =
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    (DESCRIPTION =
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)- Then Stop & Stop the listener using lsnrctl.
for 3rd point
you have to define new variable USE_SHARED_SOCKET = True in
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Regards
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Ora-2049 vs ora-12170

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To troubleshoot, we migrated this environment to a 2 node RAC (less capable hardware) and now we are getting ORA-12170 TNS:Connect timeout occured on several of the jobs. The error is frequent at times and infrequent to non-existent at other times. ORA-2049 is extremely infrequent as compared to the ORA-12170 error.
All DBs are running 10gR2.
The DBA says this is a result of the use of db links and synonyms but my first thought is that these seem to be two different errors. We use a mixture of both public and private db links as well as public and private synonyms to access the remote database. The jobs also use dynamic SQL to execute DML and in some cases triggers to access the remote db. Is our use of links/synonyms/triggers the source of the problem or is there another configuration issue we should be looking at?
Does anyone know of a good reference for the use of synonyms, db links, and triggers with respect to do's and don'ts?
Any insight is greatly appreciated.
Thanks!
Edited by: user10394376 on Feb 23, 2010 12:12 PM

Yup, simplified as in changed. But still exactly the same tables and columns, just realised I was doing an unnecessary join. When I changed the predicates it worked.

Cleint tnsnames.ora for connecting to RAC instance

Dear all,
DB:10.2.0.1
o/s:redhat 5.6
2node rac cluster
I am getting ERROR: ORA-12170: TNS:Connect timeout occurred when trying to connect to rac instance.the timeout frequency is very less once in 10 times.
cleint tnsname.ora
RACTEST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.25)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.27)(PORT = 1521))
(FAILOVER= TRUE)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = RACTEST)
Regards

Try to connect straight to the nodes. One node at the time. You can add new tnsnames entries for all RAC nodes so you can connect only one node not the whole RAC.
example:
RACTEST1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.25)(PORT = 1521))
(CONNECT_DATA =
(SERVER = dedicated)
(SERVICE_NAME = RACTEST)
(INSTANCE_NAME = RACTEST1)
RACTEST2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.27)(PORT = 1521))
(CONNECT_DATA =
(SERVER = dedicated)
(SERVICE_NAME = RACTEST)
(INSTANCE_NAME = RACTEST2)
If both nodes are working then problem is probably in network / firewall.
Usually this kind of problems comes because one node's database instance is somehow broken. And if that is the problem correction is restart failing instance.
Edited by: Simo Kemppinen on Jul 15, 2012 12:58 PM
Edited by: Simo Kemppinen on Jul 15, 2012 12:59 PM

I see the error: ORA-12170 when I make Net Manager on Oracle DTB Client

Dear all,
I installed Oracle Database 10 g on Server, then I installed Oracle Database Client 10 g on another PC. I tested the connection database from client PC by making Net Manager on Oracle Database Client. And I see the error ORA - 12170.
Can you help me?
I want to connect database on Server to practice add Portlet by SQL/PLUS.
Thanks.

Oracle says...
ORA-12170: TNS:Connect timeout occurred
Cause: The server shut down because connection establishment or communication with a client failed to complete within the allotted time interval. This may be a result of network or system delays; or this may indicate that a malicious client is trying to cause a Denial of Service attack on the server.
Action: If the error occurred because of a slow network or system, reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT, SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values. If a malicious client is suspected, use the address in sqlnet.log to identify the source and restrict access. Note that logged addresses may not be reliable as they can be forged (e.g. in TCP/IP).
Also check the following...
1) Listener status on the server.
2) Check listener.log file present in X:\oracle\product\10.2.0\db_1\NETWORK\log folder to grab any error.
3) Check the result of tnsping from the client.
4) try to login by sqlplus username/password@tnsname and see what happens.

Ora - 12170 - Connection Timeout

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