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SI78002 - OSP-DB-OTHER-UNPRED QXDAEDRSQL JOB HUNGS SO INCOMING REQUEST

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-OTHER-UNPRED QXDAEDRSQL JOB HUNGS SO INCOMING REQUEST


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
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APAR Error Description / Circumvention

-----------------------------------------------
Under certain conditions, the QXDAEDRSQL server will not accept
new connections.
This will cause XDA programs to hang with the following stack.

QXDAEDRS QSYS  30   QxdaConnectEDRS
QXDAEDRS QSYS  992  QxdaConnectEDRSInternal
QXDAEDRS QSYS  2309 QxdaConnectEDRSInternal
QXDAEDRS QSYS  176  QxdaInitRemoteConnect
QSOSRV1  QSYS  9    recv

The QXDAEDRSQL job has the following stack, with recv at the
bottom of the
stack.

1  QCMD       QSYS     /01C8
QXDALISTEN QSYS     _CXX_PEP__Fv
QXDALISTEN QSYS 397 main
QXDALISTEN QSYS   8 HandleRequest__FciN2211sock >
QSOSRV1    QSYS   9 recv


CORRECTION FOR APAR SE76635 :
-----------------------------
The QXDAEDRSQL server has been corrected to immediately accept
new connections instead of processing new connections serially.

CIRCUMVENTION FOR APAR SE76635 :
--------------------------------
The QXDAEDRSQL server can be recovered by ending certain TCP/IP
connections.  The following SQL statement will create the
ENDTCPCNN CL command to execute to end the bad connection.

select  'ENDTCPCNN PROTOCOL(*TCP) LCLINTNETA('''
CONCAT LOCAL_ADDRESS
CONCAT ''') LCLPORT('
CONCAT  LOCAL_PORT
CONCAT ') RMTINTNETA('''
CONCAT   REMOTE_ADDRESS
CONCAT ''') RMTPORT('
CONCAT REMOTE_PORT
CONCAT ')'  from qsys2.netstat_info where
LOCAL_PORT = 4402 AND
SOCKET_STATE='CONNECTED' AND
BYTES_RECEIVED_LOCALLY = 0;


Activation Instructions


None.




Special Instructions


To apply this PTF immediately, the EDRSQL server should not be active.
To ensure this, issue the request:

ENDTCPSVR *EDRSQL

After the PTF is applied, the EDRSQL server can be started.

STRTCPSVR *EDRSQL


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770SS1
APAR Fixed..........................View details for APAR SE76635
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................NONE


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Document Information

Modified date:
19 January 2022