Fixes are available
8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 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
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
Obtain the fix for this APAR.
APAR status
Closed as program error.
Error description
A server that processes MDB Plan "A" workload is configured￴ with the following settings: control_region_mdb_queue_timeout_percent: 10. control_region_mdb_request_timeout: 55. . During a period of heavy inbound MDB work, the server starts to get behind and several MDB requests reach the MDB Queue Timeout Percent age of 5.5 seconds. , BBOO00327I messages are issued for these MDBs as part of timeout processing. One of these requests was allowed to stay on the work queue for 1.0 seconds longer than it should - and it was even permitted to be dispatched into a servant region. However, this MDB was timed out almost immediately after being dispatched. * 13:40:37.96 BBOO0327I MDB Plan "A" REQUEST TIMEOUT: (0078):(FFFFF951):(0002000D):(009C75E0):(STC00117): (2013/11/12 13:40:31.484940): (2013/11/12 13:40:31.486188): (2013/11/12 13:40:37.958513): (mdbclass):(mdbrequest):(Local to this Server): ():():(InternalRequestQueue_B01Lp) . 13:40:38.06 BBOO0232W A request for Class Name 'mdbclass' and Method Name 'mdbrequest', from Local to this Server, has timed out. The servant process associated with the request will be terminated. Request Id(FFFFF951)
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V7.0, V8.0, and V8.5 * **************************************************************** * PROBLEM DESCRIPTION: WebSphere Application Server for z/OS * * Servant process is terminated after a * * WLM Queue percent timer expired. * **************************************************************** * RECOMMENDATION: * **************************************************************** A WLM queue percent timer recovers a request which exceeds a specified time spent on the WLM queue prior to being selected for execution by a Servant. A small window exists where a request is considered still on the WLM queue and has triggered the WLM Queue percent cleanup, but the request is allowed to progress to its next state. This progression in request state may cause a common cleanup routine to decide to terminate the associated Servant for the request. The result is that a request which would have been allowed to run its full dispatch timeout value was only given its WLM queue percent value before the Servant was terminated with a ABENDEC3/ABENDSEC3 REASON 04130004, 04130007, 04130008, or 0413000A. . An alternative scenario is that the Servant is not terminated . but the timeout message BBOO00327I contains Servant . information (e.g. ASID(xxxx)) even though the request was . cleaned up prior to dispatch.
Problem conclusion
Code has been modified in the request timeout processing routines dealing with WLM queue percent to eliminate the ability of the request state to progress once the WLM queue percent timeout processing has determined that the request needs to be recovered. APAR PI06958 is currently targeted for inclusion in WebSphere Application Server Fix Packs 7.0.0.33, 8.0.0.9, and 8.5.5.2 of WebSphere Application Server. Please refer to URL: //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970 for Fix Pack availability.
Temporary fix
Comments
APAR Information
APAR number
PI06958
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-11-26
Closed date
2013-12-20
Last modified date
2014-07-01
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
WEBSPHERE FOR Z
Fixed component ID
5655I3500
Applicable component levels
R700 PSY UI18561
UP14/06/21 P F406
Fix is available
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Document Information
Modified date:
28 April 2022