Fixes are available
6.1.0.35: Java SDK 1.5 SR12 FP2 Cumulative Fix for WebSphere
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for AIX
7.0.0.15: Java SDK 1.6 SR9 Cumulative Fix for WebSphere Application Server
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for HP-UX
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for IBM i
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Linux
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Solaris
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Windows
6.1.0.37: Java SDK 1.5 SR12 FP3 Cumulative Fix for WebSphere
7.0.0.17: WebSphere Application Server V7.0 Fix Pack 17
7.0.0.17: Java SDK 1.6 SR9 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.19: WebSphere Application Server V7.0 Fix Pack 19
7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
6.1.0.39: Java SDK 1.5 SR12 FP4 Cumulative Fix for WebSphere Application Server
6.1.0.41: Java SDK 1.5 SR12 FP5 Cumulative Fix for WebSphere Application Server
6.1.0.43: Java SDK 1.5 SR13 Cumulative Fix for WebSphere Application Server
6.1.0.45: Java SDK 1.5 SR14 Cumulative Fix for WebSphere Application Server
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
7.0.0.19: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
APAR status
Closed as program error.
Error description
Outbound one-way connections are not reset correctly in a busy environment and such connections could fill up the connection pool. You may notice the client application slowing down. Informational messages from the trace could show below: [8/12/10 15:50:55:353 CEST] 00000117 OutboundConne 1 Exit: findGroupAndReturnConnection() - WSWS3595I: Current pool size: 30. Connections-in-use size: 18. Configured pool size: 100 [8/12/10 16:02:02:426 CEST] 0000020c OutboundConne 1 Enter: WSWS3595I: Current pool size: 18. Connections-in-use size: 18. Configured pool size: 100 In this case, there was a 5 minutes window that there was no HTTP activity. The current pool size was not reduced to 0.
Local fix
No work around noted, candicate to be fixed in next release.
Problem summary
**************************************************************** * USERS AFFECTED: IBM WebSphere Application Server V6.1 and * * V7.0 users of JAX-RPC Web services * * clients. * **************************************************************** * PROBLEM DESCRIPTION: Outbound one-way connections are not * * reset correctly in a busy environment. * **************************************************************** * RECOMMENDATION: Install a fix pack containing this APAR. * **************************************************************** Outbound one-way connections are not reset correctly in a busy environment and such connections could fill up the connection pool. The user may notice the client application slowing down. For example, following message shows the connection pool status: [8/12/10 15:50:55:353 CEST] 00000117 OutboundConne 1 Exit: findGroupAndReturnConnection() - WSWS3595I: Current pool size: 30. Connections-in-use size: 18. Configured pool size: 100 After 5 minutes without any HTTP and network activity, the connections should be reset and the current pool size should be reduced to 0. However, following messages showed there are 18 connections are still being used. [8/12/10 16:02:02:426 CEST] 0000020c OutboundConne 1 Enter: WSWS3595I: Current pool size: 18. Connections-in-use size: 18. Configured pool size: 100
Problem conclusion
There is a synchronization problem in JAX-RPC connection management code that causes some one-way connections to not get reset correctly in a busy environment. The Web services runtime code has been changed to fix this problem. The fix for this APAR is currently targeted for inclusion in fix packs 6.1.0.35 and 7.0.0.15. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PM20594
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
61A
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-08-16
Closed date
2010-09-15
Last modified date
2010-09-15
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
WEBS APP SERV N
Fixed component ID
5724H8800
Applicable component levels
R61A PSY
UP
R61H PSY
UP
R61I PSY
UP
R61P PSY
UP
R61S PSY
UP
R61W PSY
UP
R61Z PSY
UP
R700 PSY
UP
Document Information
Modified date:
24 October 2021