Fixes are available
8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
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
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.23: 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
Obtain the fix for this APAR.
APAR status
Closed as program error.
Error description
Application Server hangs during startup when Dynatrace is enabled. A javacore shows the main thread in a blocked state: "main" J9VMThread:0x0000000808758B00, j9thread_t:0x0000000808745420, java/lang/Thread:0x0000000827F03330, state:B, prio=5 (native thread ID:0x141EC300, native priority:0x5, native policy:UNKNOWN) Java callstack: at java/util/logging/Logger.getLoggerWithRes(Logger.java:345) at java/util/logging/Logger.getLogger(Logger.java:373) at com/ibm/ejs/ras/Tr.<clinit>(Tr.java:308) at java/lang/J9VMInternals.initializeImpl(Native Method) and it appears it's the Main thread's Logger object is waiting for the following lock owned by the dtmetricstimer thread: 2LKMONINUSE sys_mon_t:0x000000080B277000 infl_mon_t: 0x000000080B277070: 3LKMONOBJECT com/ibm/ws/bootstrap/WsLogManager@0x000000082EE564D0/0x000000082 EE564E8: Flat locked by "dtmetricstimer" (0x0000000808811300), entry count 6 3LKWAITERQ Waiting to enter: 3LKWAITER "main" (0x0000000808758B00) The dtmetricstimer thread is in a wait condition and it appears to never time out: "dtmetricstimer" J9VMThread:0x0000000808811300, j9thread_t:0x0000000808983410, java/lang/Thread:0x0000000828005D38, state:CW, prio=5 (native thread ID:0x14283100, native priority:0x5, native policy:UNKNOWN) Java callstack: at java/lang/Object.wait(Native Method) at java/lang/Object.wait(Object.java:167(Compiled Code)) at java/lang/J9VMInternals.initialize(J9VMInternals.java:130(Compil ed Code)) at com/ibm/ws/logging/WsLogger.registerTraceComponent(WsLogger.java :900) at com/ibm/ws/logging/WsLogger.<init>(WsLogger.java:181) at com/ibm/ws/logging/WsLoggerFactoryImpl.createWsLogger(WsLoggerFa ctoryImpl.java:79) at com/ibm/ws/bootstrap/RASDelegator.createWsLogger(RASDelegator.ja va:74) at com/ibm/ws/bootstrap/WsLogManager.getLogger(WsLogManager.java:21 8) at java/util/logging/Logger.getLoggerWithRes(Logger.java:347) at java/util/logging/Logger.getLogger(Logger.java:387) at com/ibm/ws/logging/WsLogger.<clinit>(WsLogger.java:91) at java/lang/J9VMInternals.initializeImpl(Native Method) at java/lang/J9VMInternals.initialize(J9VMInternals.java:200(Compil ed Code)) at com/ibm/ws/logging/WsLoggerFactoryImpl.createWsLogger(WsLoggerFa ctoryImpl.java:79) at com/ibm/ws/bootstrap/RASDelegator.createWsLogger(RASDelegator.ja va:74) at com/ibm/ws/bootstrap/WsLogManager.getLogger(WsLogManager.java:21 8) at java/util/logging/Logger.getLoggerWithRes(Logger.java:347) at java/util/logging/Logger.getLogger(Logger.java:387) at com/ibm/ws/logging/WsLoggerFactoryImpl.createWsLogger(WsLoggerFa ctoryImpl.java:73) at com/ibm/ws/bootstrap/RASDelegator.createWsLogger(RASDelegator.ja va:74) at com/ibm/ws/bootstrap/WsLogManager.getLogger(WsLogManager.java:21 8) at java/util/logging/Logger.getLoggerWithRes(Logger.java:347) at java/util/logging/Logger.getLogger(Logger.java:373)
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V7.0 and V8.0 * **************************************************************** * PROBLEM DESCRIPTION: Rare startup deadlock can occur when * * Tr object is initialized. * * If server will not start (hangs on * * startup) and a threadDump shows a * * thread with a frame * * including * * com/ibm/ws/logging/WsLogger.registerTra * * ceComponent(WsLogger.java:900) in an * * object wait, this may be the issue. * **************************************************************** * RECOMMENDATION: * **************************************************************** With a third party product involved at startup a usage pattern emerged that resulted in a deadlock.
Problem conclusion
This fix avoids a startup deadlock by making sure all resources are attained prior to registering a component. For non-z/OS operating systems, please refer to APAR PM02821. APAR PM51742 is currently targeted for inclusion in Fix Packs 7.0.0.23 and 8.0.0.3 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
PM51742
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
2011-11-07
Closed date
2011-12-09
Last modified date
2012-06-03
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 UK78616
UP12/05/26 P F205
Fix is available
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Document Information
Modified date:
28 October 2021