Fixes are available
APAR status
Closed as program error.
Error description
A WebSphere MQ .NET client connecting to a queue manager over a non-multiplexed channel does not close the socket after disconnecting from the queue manager. As a result, sockets are locked in CLOSE_WAIT state which can eventually result in no sockets being available for making further connections.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users of the WebSphere MQ .NET and XMS clients who use non- multiplexed (SHARECNV=0) channels to connect to queue managers. Platforms affected: Windows **************************************************************** PROBLEM SUMMARY: When a client makes a call to disconnect from the queue manager, it sends a MQDISC call to the queue manager. The queue manager acknowledges this and responds back to the client. Upon receipt of this response, the client must close the socket at its end to complete termination of the conversation. Since the client did not close the socket, all such sockets remained in CLOSE_WAIT state and therefore not being available for future connections.
Problem conclusion
The WebSphere MQ .NET client code has been modified to ensure that the client side closes the socket after disconnecting from the queue manager. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: v7.0 Platform Fix Pack 7.0.1.4 -------- -------------------- Windows U200323 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available, information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IC70091
Reported component name
WMQ WINDOWS V7
Reported component ID
5724H7220
Reported release
701
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-07-21
Closed date
2010-08-31
Last modified date
2010-08-31
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WMQ WINDOWS V7
Fixed component ID
5724H7220
Applicable component levels
R701 PSY
UP
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Document Information
Modified date:
31 March 2023