RE: New DB Connections Failing ?
- From: "VIVEK_SHARMA" <VIVEK_SHARMA@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 15 Nov 2006 12:06:59 +0530
Folks 4 Points of Advice by Oracle Corp:- 1) This seems to be a failure to create a socket and resulting failure to create a connection 2) There is an Operating System Error in the error stack: ntresnt=227, which appear to be 'can't assign requested address', but you would need to verify this on your platform. 3) Verify that the adapters command shows all of the adapters, in particular TCP > adapters > adapters sqlplus 4) Try using the actual IP address of the target database server in place of the hostname to see if the behavior changes. ../network/admin/cli_14053.trc sample:- NOTE - It has the Error 12157 below in it. [14-NOV-2006 12:48:14:866] ntt2err: entry [14-NOV-2006 12:48:14:866] ntt2err: soc 9 error - operation=1, ntresnt=515, ntresnt=227, ntresnt=0 [14-NOV-2006 12:48:14:866] ntt2err: exit [14-NOV-2006 12:48:14:875] nttcnp: exit [14-NOV-2006 12:48:14:875] nttcon: exit [14-NOV-2006 12:48:14:875] niotns: niotns failed to create NS ctx, error code 12157 [14-NOV-2006 12:48:14:875] niotns: Couldn't connect, returning 12157 [14-NOV-2006 12:48:14:875] niotns: exit [14-NOV-2006 12:48:14:875] nigcui: entry ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of VIVEK_SHARMA Sent: Tuesday, November 14, 2006 7:42 PM Folks In a NEW Setup, after about 700 database (dedicated server) Connections are spawned, New Connections via the Listener process to the RAC Database node from an Application server machine are FAILING. Also Performance of Queries becomes very slow of already existing Connections to the Database. NOTE - CPU Utilization of the DB & APP Servers is Low. $ sqlplus <user>/<passwd>@<connect string> gives the Oracle Error ORA-12157 $ oerr ora 12157 12157, 00000, "TNS:internal network communication error" // *Cause: Internal error during network communication. // *Action: Not normally visible to the user. For further details, turn // on tracing and reexecute the operation. If error persists, contact // Worldwide Customer Support. On DB Server Node:- $ netstat -a | grep <Port Num of Listener process> | wc -l 700 Qs 1 - Will adding a 2nd Listener process to each of the 2 RAC Nodes Help overcoming the NEW DB connections problem? Thanks Indeed Config:- Oracle 10.2.0.2 HP-UX ver B11.23 Init.ora:- processes=3500 sessions=3500 **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***
- Re: New DB Connections Failing ?
- From: Mladen Gogala
- Re: New DB Connections Failing ?