A fix is available
APAR status
Closed as program error.
Error description
The problem is related to the use of scalable mode and the way a thread in the HTTP Server services any given socket, moving the socket around from thread to thread. It opened the socket as a non-SSL socket, but later thought it was an SSL socket, because it looked at the wrong place to figure out the type. That caused the SSL code to return the -101 code. This has caused a significant performance problem in the HTTP Server.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of HTTP Server for OS/390 and z/OS * * who use scalable mode, a mix of nonSSL and * * SSL connections, and persistence. * **************************************************************** * PROBLEM DESCRIPTION: Response time problems, possibly with * * msgIMW0405E ("Internal I/O error"). * **************************************************************** * RECOMMENDATION: * **************************************************************** Customers who use scalable mode, a mix of nonSSL and SSL connections, and persistence may notice very long response times on some requests, and possibly messages about errors while writing to the client ("IMW0405E Internal I/O error"). If the customer turns on trace (-debug tcp), there will be a trace line similar to: "level3write...SSL write ... status=-101".
Problem conclusion
The HTTP Server is modified to correct a problem in which it attempted to use SSL to write to a nonSSL socket. The following COMPID's are affected by these changes: 5697D4300 LDGW for OS/390 Version 5 (5.3 only) PTFR2p The code changes are stored in CMVC under defect PQ73396. * Cross Reference between External and Internal Names
Temporary fix
Comments
APAR Information
APAR number
PQ73396
Reported component name
DGW/WAS OS/390
Reported component ID
5697D4300
Reported release
530
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2003-04-21
Closed date
2003-04-25
Last modified date
2003-05-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
IMWSSRVR
Fix information
Fixed component name
DGW/WAS OS/390
Fixed component ID
5697D4300
Applicable component levels
R530 PSY UQ76322
UP03/05/01 P F304
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
03 May 2003