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OpenVMS: Listener Crashes or Errors With :TNS-12582: TNS:invalid operation, TNS-12623, VMS Error: 32: broken pipe (Doc ID 1270778.1)

Last updated on FEBRUARY 13, 2019

Applies to:

Oracle Net Services - Version to [Release 10.2]
HP OpenVMS Alpha
HP OpenVMS Itanium
***Checked for relevance on 25-Apr-2013***


The TNS Listener intermittently dies, crashes or reports errors with these messages in the listener log file:

    TNS-12582: TNS:invalid operation
    TNS-12623: TNS:operation is illegal in this state
    TNS-12518: TNS:listener could not hand off client connection
    TNS-12547: TNS:lost contact
    TNS-12560: TNS:protocol adapter error
    TNS-00517: Lost contact
    VMS Error: 32: broken pipe

The listener log file is found in the ora_root:[network.log] directory.

Normally, a Listener crash will not result in the production of a VMS process dump file.

If, as part of a debugging activity, the Listener process is configured to produce a process dump file (by using the command $ SET PROCESS/DUMP/ID=<VMS pid of listener>), then when the listener terminates abnormally, the tnslsnr.exe process will create a dump file called ora_root:[network.log]tnslsnr.dmp.  

You can also modify the to add the set process/dump command there
so that it is automatically enabled on each listener start. 

$ set process/name="ORA_''lname'''time'"
$ set process/dump                                         <=====add this line

To verify that your current listener process has image dump = on use this command:

$ pipe show proc/all/id=<pid of tns listener> |search sys$pipe dump

$ pipe show proc/all/id=20218ED3|search sys$pipe dump
Image Dump: on

A subsequent analysis of the tnslsnr.dmp file will show the following call stack:

*nlqu   nlqudeq     120151 0000000000000448 000000000015C3A8
----- the above looks like a null frame in the same scope as the frame below
*nsio   nsiodone    155148 000000000000042C 00000000001ACFBC
*nsev   nsevioc     163619 000000000000A8FC 00000000001A568C
*nsev   nsevpurgeq  163669 000000000000AABC 00000000001A584C
*nsev   nsevwait    163864 000000000000B26C 00000000001A5FFC
*nsglsn nsglma      310425 000000000000C404 00000000002430D4
*s0nsgl oravmsmain  298383 0000000000000464 0000000000140464
*s0nsgl main        298317 0000000000000394 0000000000140394
*s0nsgl __main      298288 000000000000006C 000000000014006C
SHARE$PTHREAD$RTL_DATA1 0000000000027618 FFFFFFFF80E77618
SHARE$PTHREAD$RTL_DATA1 0000000000000444 FFFFFFFF80E50444

You can analyze your tnslsnr.dmp file by running the script in the following note.

OpenVMS Script to Review the contents of a VMS Oracle Process DMP file <Document 557245.1>

Note that you must pass the script in note 557245.1 the name "tnslsnr.dmp", otherwise it defaults to

In several reported cases the errors occurred after a connection using ODP.NET, Oracle Data Provider for .NET applications. The problem can be experienced with other types of connections besides ODP.NET.




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