11:08 a.m.
Hi,
I have been fighting with OOMEs and yesterday I was able to
track down the cause.
There are lot of ConcurrentReaderHashMap entries and it seems that something is repeating
itself.
I have heapdump (about 300MB) which can be analyzed using MDD4J for IBM JVM. I can provide
them for further investigation.
Br,
Juha Moisio
anonymous wrote :
| +59 105 812 [36] 2 java/util/ArrayList 0x9009b088
| ++59 105 776 [20] 2 array of java/lang/Object 0x9009b0a0
| +++59 105 756 [40] 5 org/jboss/mx/server/MBeanServerImpl 0x900a0188
| ++++44 764 058 [28] 2 org/jboss/mx/notification/MBeanServerListenerRegistry
0x900a05f8
| ++++14 323 970 [60] 9 org/jboss/mx/server/registry/BasicMBeanRegistry 0x900ab5c8
| +++++14 321 526 [68] 5 EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap
0x900ab5f8
| ++++++14 321 406 [124] 28 array of
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91a50d48
| +++++++8 345 240 [40] 4 EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry
0x9263f7e0
| ++++++++8 344 940 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90980168
| +++++++++8 344 860 [68] 5 EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap
0x90980120
| ++++++++++8 344 740 [516] 126 array of
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48138
| +++++++++++262 706 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943ecf68
| ++++++++++++211 488 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92f7e6d0
| ++++++++++++51 138 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x943e5880
| ++++++++++++40 [40] 2 java/lang/String 0x943ecf48
| ++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| +++++++++++199 550 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94836c48
| ++++++++++++148 348 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x905a77d0
| +++++++++++++119 108 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9252c4f8
| ++++++++++++++67 872 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x917684a0
| +++++++++++++++67 792 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x9175e208
| ++++++++++++++++49 776 [112] 14 org/jboss/mx/modelmbean/XMBean 0x917573e0
| +++++++++++++++++17 542 [60] 3 java/util/HashMap 0x91757448
| +++++++++++++++++15 888 [76] 12 javax/management/modelmbean/ModelMBeanInfoSupport
0x9175e088
| +++++++++++++++++14 260 [60] 3 java/util/HashMap 0x917574c8
| +++++++++++++++++1 554 [84] 5 org/jboss/mx/server/InvocationContext 0x917637d0
| +++++++++++++++++200 [32] 3 org/jboss/mx/util/JBossNotificationBroadcasterSupport
0x917575d8
| +++++++++++++++++76 [60] 2 java/util/HashMap 0x917574f8
| +++++++++++++++++60 [32] 3 org/jboss/logging/Logger 0x917575a0
| +++++++++++++++++60 [32] 3 org/jboss/logging/Logger 0x91757578
| +++++++++++++++++24 [24] 1 org/jboss/mx/persistence/NullPersistence 0x917575c8
| +++++++++++++++++59 105 756 [40] 5 org/jboss/mx/server/MBeanServerImpl 0x900a0188
| ++++++++++++++++++44 764 058 [28] 2
org/jboss/mx/notification/MBeanServerListenerRegistry 0x900a05f8
| ++++++++++++++++++14 323 970 [60] 9 org/jboss/mx/server/registry/BasicMBeanRegistry
0x900ab5c8
| +++++++++++++++++++14 321 526 [68] 5
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap 0x900ab5f8
| ++++++++++++++++++++14 321 406 [124] 28 array of
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91a50d48
| +++++++++++++++++++++8 345 240 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9263f7e0
| ++++++++++++++++++++++8 344 940 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90980168
| +++++++++++++++++++++++8 344 860 [68] 5
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap 0x90980120
| ++++++++++++++++++++++++8 344 740 [516] 126 array of
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48138
| +++++++++++++++++++++++++262 706 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943ecf68
| +++++++++++++++++++++++++199 550 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94836c48
| +++++++++++++++++++++++++175 748 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9295e938
| +++++++++++++++++++++++++170 902 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9478dd48
| +++++++++++++++++++++++++156 548 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94376df8
| +++++++++++++++++++++++++153 568 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90831260
| +++++++++++++++++++++++++142 646 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9279fc68
| +++++++++++++++++++++++++136 276 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9473f100
| +++++++++++++++++++++++++135 522 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92d5c040
| +++++++++++++++++++++++++123 272 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92850168
| +++++++++++++++++++++++++121 382 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94703e80
| +++++++++++++++++++++++++119 710 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x924de6a8
| +++++++++++++++++++++++++119 114 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48588
| +++++++++++++++++++++++++118 962 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90bce940
| +++++++++++++++++++++++++104 730 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x93e8d698
| +++++++++++++++++++++++++104 152 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48688
| +++++++++++++++++++++++++103 014 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9426fc18
| +++++++++++++++++++++++++102 486 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9115a2b0
| +++++++++++++++++++++++++102 448 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943859d8
| +++++++++++++++++++++++++102 436 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91117580
| ++++++++++++++++++++++++There are 106 more children.
| ++++++++++++++++++++++++28 [28] 2
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Values 0x902b0370
| ++++++++++++++++++++++++24 [24] 1
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$BarrierLock 0x90980158
| ++++++++++++++++++++++++51 256 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94846e30
| ++++++++++++++++++++++++2 048 [256] 20 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap 0x32a27428
| +++++++++++++++++++++++40 [40] 2 java/lang/String 0x909800e0
| +++++++++++++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| ++++++++++++++++++++++220 [68] 5
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap 0x9263f708
| ++++++++++++++++++++++40 [40] 2 java/lang/String 0x9263f6c8
| ++++++++++++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| +++++++++++++++++++++2 365 226 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90d64f40
| +++++++++++++++++++++1 969 998 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91a50d28
| +++++++++++++++++++++408 298 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90ffd098
| +++++++++++++++++++++375 600 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90424678
| +++++++++++++++++++++175 956 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90407060
| +++++++++++++++++++++170 156 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9235a5f8
| +++++++++++++++++++++117 020 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90702778
| +++++++++++++++++++++82 494 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x919a5ab8
| +++++++++++++++++++++73 486 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x907cd7a0
| +++++++++++++++++++++58 134 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x911aada8
| +++++++++++++++++++++56 234 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x900caf68
| +++++++++++++++++++++44 078 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91a50e98
| +++++++++++++++++++++24 628 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91d18788
| +++++++++++++++++++++18 506 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90620d60
| +++++++++++++++++++++17 536 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91a50e58
| +++++++++++++++++++++11 220 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9072a108
| +++++++++++++++++++++4 100 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943264a0
| +++++++++++++++++++++552 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92556908
| +++++++++++++++++++++468 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x901e45e8
| ++++++++++++++++++++There are 8 more children.
| ++++++++++++++++++++28 [28] 2
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$EntrySet 0x902af4b8
| ++++++++++++++++++++24 [24] 1
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$BarrierLock 0x900ab630
| ++++++++++++++++++++4 100 [40] 3
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943264a0
| ++++++++++++++++++++2 048 [256] 20 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap 0x32a27428
| +++++++++++++++++++2 184 [256] 70 class
org/jboss/mx/server/registry/BasicMBeanRegistry 0x32945e60
| +++++++++++++++++++128 [52] 4 javax/management/ObjectName 0x900ab670
| +++++++++++++++++++36 [36] 2 EDU/oswego/cs/dl/util/concurrent/SynchronizedLong
0x900ab658
| +++++++++++++++++++36 [36] 2 EDU/oswego/cs/dl/util/concurrent/SynchronizedLong
0x900ab640
| +++++++++++++++++++63 000 452 [88] 14 org/jboss/mx/loading/UnifiedLoaderRepository3
0x900a4120
| +++++++++++++++++++59 105 756 [40] 5 org/jboss/mx/server/MBeanServerImpl 0x900a0188
| +++++++++++++++++++11 594 [48] 3 javax/management/MBeanServerDelegate 0x9009ba80
| +++++++++++++++++++62 [40] 2 java/lang/String 0x9004ff40
| ++++++++++++++++++17 688 [256] 161 class org/jboss/mx/server/MBeanServerImpl
0x32a22f30
| ++++++++++++++++++63 000 452 [88] 14 org/jboss/mx/loading/UnifiedLoaderRepository3
0x900a4120
| ++++++++++++++++++59 105 756 [40] 5 org/jboss/mx/server/MBeanServerImpl 0x900a0188
| +++++++++++++++++105 320 [256] 60 class org/jboss/mx/modelmbean/XMBean 0x32948da0
| +++++++++++++++++67 792 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x9175e208
| +++++++++++++++++17 968 [56] 9 org/jboss/management/j2ee/ServiceModule 0x91756f80
| +++++++++++++++++78 [40] 2 java/lang/String 0x900b1680
| ++++++++++++++++17 968 [56] 9 org/jboss/management/j2ee/ServiceModule 0x91756f80
| ++++++++++++++++652 [52] 5 javax/management/ObjectName 0x91757070
| ++++++++++++++++356 [256] 9 class org/jboss/mx/server/registry/MBeanEntry 0x3294a8b0
| ++++++++++++++++130 [40] 2 java/lang/String 0x9038ed70
| +++++++++++++++40 [40] 2 java/lang/String 0x91768480
| +++++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| ++++++++++++++51 156 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x925226e0
| ++++++++++++++40 [40] 2 java/lang/String 0x9252c4d8
| ++++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| +++++++++++++29 160 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x905a3b68
| +++++++++++++40 [40] 2 java/lang/String 0x905a77b0
| +++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| ++++++++++++51 122 [48] 5 org/jboss/mx/server/registry/MBeanEntry 0x9481f978
| ++++++++++++40 [40] 2 java/lang/String 0x94836c28
| ++++++++++++512 [256] 6 class
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x32a27bf0
| +++++++++++175 748 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9295e938
| +++++++++++170 902 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9478dd48
| +++++++++++156 548 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94376df8
| +++++++++++153 568 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90831260
| +++++++++++142 646 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9279fc68
| +++++++++++136 276 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9473f100
| +++++++++++135 522 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92d5c040
| +++++++++++123 272 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92850168
| +++++++++++121 382 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x94703e80
| +++++++++++119 710 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x924de6a8
| +++++++++++119 114 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48588
| +++++++++++118 962 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x90bce940
| +++++++++++104 730 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x93e8d698
| +++++++++++104 152 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x92e48688
| +++++++++++103 014 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9426fc18
| +++++++++++102 486 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x9115a2b0
| +++++++++++102 448 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x943859d8
| +++++++++++102 436 [40] 4
EDU/oswego/cs/dl/util/concurrent/ConcurrentReaderHashMap$Entry 0x91117580
| +++++++++++There are 106 more children.
|
|
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