DFHSO0102 after upgrading to z/VSE 6.2 with CICS 2.2

Question & Answer

Question

After upgrading to z/VSE V6.2 with CICS Transaction Server for z/VSE V2.2, why are SOAP requests coming into my CICS region intermittently receiving message DFHSO0102?

DFHSO0102 A Language Environment Callable Service error (code X'0263') has occurred on receipt of a severe TCP/IP return code; the TCPIPSERVICE HTTP ... will be closed.

This exception trace entry is issued:

 00023 3 SO 0263 SOCK  *EXC* ACCEPT_EIO_RECEIVED   0,0,00000000

Answer

Looking at the LTE for the TCPIPSERVICE "HTTP" in the EXC trace entry, the AIOCB @ LTE+X'308':

                   00000005 00000000  00000000 00000000 00000000 00000000
 00000000 00000000 00000000 00000000  00000000 00000000 0000007E 00010000
 00000000 00000000 FFFFFFFF 0000045D  00000008 00000000 00000000 0711C000

0000007E = Accept

FFFFFFFF = -1 = AioRv

45D = AioRc = ENETDOWN ("The network is down").

CICS responds by closing the TCPIPSERVICE. However, the network was not down at the time.

The TCPIP code was provided by CSI International, who provided fix ZP223122 for this problem.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Platform":[{"code":"PF035","label":"z\/OS"}],"Component":"Web Services","Version":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Product Synonym

CICS/TS CICSTS CICS TS CICS Transaction Server

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Document Information

Modified date:
28 August 2018

UID

dwa1455263

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