APAR status
Closed as program error.
Error description
If many message flows running under load make frequent connections to the integration node using the IBM Integration API (IAPI), then intermittent abends of the bipbroker and DataFlowEngine processes may be seen with the following call stacks: DataFlowEngine: recvTimeout__14ImbBasicSocketFPUcilb read__13ImbNamedCommsFR15ImbCommonBufferl receiveMessage__17ImbLocalCMPClientFlR15ImbCommonBuffer Java_com_ibm_broker_config_proxy_LocalCMPReceiver_startLocalCMPN ativeReceiverThread bipbroker: recvTimeout__14ImbBasicSocketFPUcilb read__13ImbNamedCommsFR15ImbCommonBufferl run__Q2_32ImbDeployManagerLocalCMPListener25ImbCMPClientHandlerT hreadFP11ImbOsThread run__27ImbThreadPoolThreadFunctionFP11ImbOsThread or sendTimeout__14ImbBasicSocketFPCUcil write__13ImbNamedCommsFR9ImbBufferl write__13ImbNamedCommsFR9ImbBuffer deliverResponseInner__Q2_32ImbDeployManagerLocalCMPListener25Imb CMPClientHandlerThreadFR15ImbCommonBuffer deliverResponse__32ImbDeployManagerLocalCMPListenerFRC10ImbWstri ngR15ImbCommonBuffer sendReplyMessage__21ImbDeployManagerCacheFRC10ImbWstringbR15ImbC ommonBuffer sendReplyMessage__21ImbDeployManagerCacheFP28ImbDeployManagerPro xySessionR15ImbCommonBuffer processRequestFromProxy__21ImbDeployManagerCacheFRC21ImbBuffered StringBase run__43ImbDeployManagerInMemoryQueueListenerThreadFP11ImbOsThrea d
Local fix
Problem summary
**************************************************************** USERS AFFECTED: All users of IBM Integration Bus V10 and IBM App Connect Enterprise V11 using the Integration API from message flows. Platforms affected: z/OS, MultiPlatform **************************************************************** PROBLEM DESCRIPTION: If many message flows running under load make frequent connections to the integration node using the IBM Integration API (IAPI), then intermittent abends of the bipbroker and DataFlowEngine processes may be seen with the following call stacks: DataFlowEngine: recvTimeout__14ImbBasicSocketFPUcilb read__13ImbNamedCommsFR15ImbCommonBufferl receiveMessage__17ImbLocalCMPClientFlR15ImbCommonBuffer Java_com_ibm_broker_config_proxy_LocalCMPReceiver_startLocalCMPN ativeReceiverThread bipbroker: recvTimeout__14ImbBasicSocketFPUcilb read__13ImbNamedCommsFR15ImbCommonBufferl run__Q2_32ImbDeployManagerLocalCMPListener25ImbCMPClientHandlerT hreadFP11ImbOsThread run__27ImbThreadPoolThreadFunctionFP11ImbOsThread or sendTimeout__14ImbBasicSocketFPCUcil write__13ImbNamedCommsFR9ImbBufferl write__13ImbNamedCommsFR9ImbBuffer deliverResponseInner__Q2_32ImbDeployManagerLocalCMPListener25Imb CMPClientHandlerThreadFR15ImbCommonBuffer deliverResponse__32ImbDeployManagerLocalCMPListenerFRC10ImbWstri ngR15ImbCommonBuffer sendReplyMessage__21ImbDeployManagerCacheFRC10ImbWstringbR15ImbC ommonBuffer sendReplyMessage__21ImbDeployManagerCacheFP28ImbDeployManagerPro xySessionR15ImbCommonBuffer processRequestFromProxy__21ImbDeployManagerCacheFRC21ImbBuffered StringBase run__43ImbDeployManagerInMemoryQueueListenerThreadFP11ImbOsThrea d The abends are due to a short timing window where one thread may be closing the socket whilst another thread is still reading/writing.
Problem conclusion
The product has been modified to ensure both read and write locks have been taken when closing or resetting a socket. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v10.0 10.0.0.21 v11.0 11.0.0.9 The latest available maintenance can be obtained from: http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041 If the maintenance level is not yet available,information on its planned availability can be found on: http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT32065
Reported component name
INTEGRATION BUS
Reported component ID
5724J0540
Reported release
A00
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-03-04
Closed date
2020-05-26
Last modified date
2020-05-26
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
INTEGRATION BUS
Fixed component ID
5724J0540
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSNQK6","label":"IBM Integration Bus"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
27 May 2020