AIX 下lsnrctl start 错误

遇到的报错如下：

sbdb:/home/oracle$lsnrctl status


LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production on 22-NOV-2015 02:50:52


Copyright (c) 1991, 2010, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=cnsb)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   IBM/AIX RISC System/6000 Error: 79: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   IBM/AIX RISC System/6000 Error: 79: Connection refused

sbdb:/home/oracle$lsnrctl start


LSNRCTL for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production on 22-NOV-2015 02:50:52


Copyright (c) 1991, 2010, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=cnsb)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   IBM/AIX RISC System/6000 Error: 79: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   IBM/AIX RISC System/6000 Error: 29: Illegal seek

 

查了好久也没找到原因，主要问题出在/etc/hosts文件上，“127.0.0.1  localhost” 被注释了，回想起来可能是无意中被注释掉的 。

下面转载正对该报错的相关解释：

 

TNS-12537, TNS-12560, TNS-00507 Linux Error: 29: Illegal seek error When Starting the Listener 

Subject:  TNS-12537, TNS-12560, TNS-00507 Linux Error: 29: Illegal seek error When Starting the Listener 
             Doc ID:  Note:294730.1       Type:  PROBLEM
Last Revision Date:  16-JAN-2005       Status:  MODERATED

 

------------------------------------------------------------------
This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) Rapid Visibility (RaV) process, and therefore has not been subject to an independent technical review. 

------------------------------------------------------------------

 

 

The information in this document applies to: 

 

Oracle Net Services - Version: 10.1.0.3
This problem can occur on any platform. 

 

Symptoms 

 

The listener fails to start with the following errors:
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error: 29: Illegal seek
Generic to Unix platforms. 

 

Cause 

 

Wrong syntax in hosts file and also due to the the tnslsnr process was enhanced in 
10.1.0.3 to support FAN(Fast Application Notification) via
ONS (Oracle Notification Services). This new code opens a socket open on localhost. Therefore
"localhost" should be defined on the system.

 

This new code opens a socket open on localhost. Therefore "localhost" should be defined on the
system. 

 

Fix 

 

Change /etc/hosts file to include
127.0.0.1 localhost.localdomain localhost

 

================================================

 

Subject:  10g TNS Listener Fails To Start With Errors: TNS-12537...Error: 29: Illegal seek 
             Doc ID:  Note:315720.1     Type:  PROBLEM 
Last Revision Date:  26-SEP-2007     Status:  MODERATED

-------------------------------------------------------------------------------- 
This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) Rapid Visibility (RaV) process, and therefore has not been subject to an independent technical review.

--------------------------------------------------------------------------------

 

Applies to:

Oracle Net Services - Version: 10.1.0.0 to 10.2.0.2
This problem can occur on any platform.

 

Symptoms 

 

Unable to start an Oracle10g R1 (or R2) TNS Listener on Unix:

 

For example:

 

$ lsnrctl start
LSNRCTL for HPUX: Version 10.1.0.4.0 - Production on 01-JUL-2005 10:16:59
Copyright (c) 1991, 2004, Oracle. All rights reserved.
Starting /db02/product/10.1/bin/tnslsnr: please wait...
TNS-12537: TNS:connection closed
TNS-12560: TNS:proto adapter error
TNS-00507: Connection closed
HPUX Error: 29: Illegal seek

 

Changes 

 

Verify the user attempting to start the TNS Listener process has read permissions on the /etc/hosts file, and that this file contains the localhost entry:

 

127.0.0.1 localhost.localdomain localhost 
192.168.2.20 prfinders.us.oracle.com prfinders .

 

Cause

 

TNS Listener fails while attempting to initiate subscription to ONS node down event.

 

Level 16 TNS Listener trace shows the last action:

 

...
[01-JUL-2005 10:16:59:727] nsglonsinit: Initiated subscription for node down event
...

 

Same symptoms and corrective action found in Bug 4227455 OCS_MAIN_SOLARIS_050304 - UNABLE TO START THE SECOND LISTENER of if OS User is unable to read the /etc/hosts file.

 

Solution

 

To implement the solution, please execute the following steps:

 

1. Explicitly disable the 10g TNS Listener's subscrition to ONS by editing the listener.ora file and add the parameter below:

 

SUBSCRIBE_FOR_NODE_DOWN_EVENT_<listener_name>=OFF

 

where <listener_name> would be replaced with the actual listener name configured in the listener.ora file.

 

For example, if the listener name is LISTENER (default), the parameter would be:

 

SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF

 

- Save the listener.ora file

2. Start the TNS Listener from a new LSNRCTL prompt:

 

lsnrctl <return>

 

LSNRCTL> start

 

References 

 

Note 284602.1 - 10g Listener: High CPU Utilization - Listener May HangNote 294730.1 - TNS-12537, TNS-12560, TNS-00507 Linux Error: 29: Illegal seek error When Starting the Listener

 

Errors

 

TNS-12560 "TNS:protocol adapter error"TNS-12537 TNS:connection closedTNS-507 "Connection closed"

 

Keywords