Problem with the listening Service: Long delay beginning listener, intermittent connections

I have problems to connect to my Oracle database.  I don't know what was the cause, but now when I connect to a database that has been working well for the past two years, I usually get an ORA-12541 error.

I run lsnrctl status on the server and get a prinout like this:

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

Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST=dqaswn02) (PORT = 1521)))
AMT-12541: TNS:no listener
AMT-12560: TNS:protocol adapter error
AMT-00511: no listener
Windows 64-bit error: 61: unknown error
Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
AMT-12541: TNS:no listener
AMT-12560: TNS:protocol adapter error
AMT-00511: no listener
Windows 64-bit error: 2: no such file or directory

I also tried to manually stop the service through services.msc, then by restarting via lsnrctl start, but when I do this I get a very long delay (10 + minutes) before he comes back with something like:

TNS-01153: failed to process the string: 0i

I'm quite lost as to what is wrong.  I've been messing around with listener.ora, but I don't see anything difficult in there.  Here's a copy:

listener.ora # Network Configuration file: E:\app\myc0714\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = E:\app\myc0714\product\11.2.0\dbhome_1)
(= Extproc PROGRAM)
(ENVS = "EXTPROC_DLLS=ONLY:E:\app\myc0714\product\11.2.0\dbhome_1\BIN\OraClr11.dll")
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dqaswn02) (PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
)
)

# ADR_BASE_LISTENER = E:\app\myc0714
LOG_FILE_LISTENER = LISTEN PORT
TRACE_LEVEL_LISTENER = SUPPORT
TRACE_FILE_LISTENER = LISTEN PORT

A few times during that time, I was able to connect to the server, via sqlplus, however, it took 10 minutes before the connection is online.  Once I'm connected, I can ask my paintings as expected, but I need an application to connect.

If anyone has any ideas on what could be the problem, please let me know.

In fact, there was another thing, I changed when I finally got it works, although I don't know if it was related or not.  In my folder with my track logs, I had a huge (> 4 GB) listener.log file.  I deleted this file right before that I ran the command netsh command to reset and then restarted.  This file was also a bit special, because it had not been updated since around the time that I first encountered this problem.  It seems to be updated on a minute by minute basis, now that I've removed the old.  Is there a problem with this file becomes too big?  My drive was not out of space, but it is very curious that this stopped file update on the same day as when I started having the problem and now works properly again.  I wish I had noted the exact time until I deleted it.

Link:

Problem of Listener.log & #8211; large file | Obtained & #039; s Blog

Tags: Database

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