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UCM 11g Managed Server Start Up Takes Over 5 Minutes and Hangs at java/security/SecureRandom.generateSeed (Doc ID 1368532.1)

Last updated on MAY 01, 2023

Applies to:

Oracle WebCenter Content - Version to [Release 11g]
Information in this document applies to any platform.


Starting up the UCM Managed Server takes over 5 minutes. The UCM server logs show a 5 minute delay between the following lines:

####<Oct 5, 2011 1:35:14 PM CEST> <Info> <IIOP> <ath-bv-ucm-klif> <AdminServer> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <> <1317814514503> <BEA-002014> <IIOP subsystem enabled.>
####<Oct 5, 2011 1:35:18 PM CEST> <Info> <Security> <ath-bv-ucm-klif> <AdminServer> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <> <1317814518791> <BEA-090894> <Successfully loaded the OPSS Policy Provider using>

A java thread dump (taken using a "kill -3 <pid>" on the java process) shows the following thread stack:

"Main Thread" id=1 idx=0x4 tid=29201 prio=5 alive, waiting, native_blocked
-- Waiting for notification on: weblogic/t3/srvr/SubsystemRequest@0xe8e58b10[fat lock]
at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at weblogic/t3/srvr/SubsystemRequest.rendezvouz(
^-- Lock released while waiting: weblogic/t3/srvr/SubsystemRequest@0xe8e58b10[fat lock]
at weblogic/t3/srvr/SubsystemRequest.action(
at weblogic/t3/srvr/SubsystemRequest.start(
at weblogic/t3/srvr/ServerServicesManager.startService(
at weblogic/t3/srvr/ServerServicesManager.startInStandbyState(
^-- Holding lock: java/lang/Class@0xe8e54168[biased lock]
at weblogic/t3/srvr/T3Srvr.initializeStandby(
at weblogic/t3/srvr/T3Srvr.startup(
at weblogic/t3/srvr/
at weblogic/Server.main(
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
-- end of trace

"[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" id=15 idx=0x34 tid=29232 prio=5 alive, in native, daemon
at jrockit/io/FileNativeIO.readBytesPinned(Ljava/io/FileDescriptor;[BII)I(Native Method)
at jrockit/io/FileNativeIO.readBytes(
at java/io/FileInputStream.readBytes([BII)I(
at java/io/
at sun/security/provider/NativePRNG$RandomIO.readFully(
at sun/security/provider/NativePRNG$RandomIO.implGenerateSeed(
^-- Holding lock: java/lang/Object@0xe97b7ac0[biased lock]
at sun/security/provider/NativePRNG$RandomIO.access$300(
at sun/security/provider/NativePRNG.engineGenerateSeed(
at java/security/SecureRandom.generateSeed(
at com/bea/security/utils/random/AbstractRandomData.ensureInittedAndSeeded(
^-- Holding lock: com/bea/security/utils/random/SecureRandomData@0xe126eb30[recursive]
at com/bea/security/utils/random/AbstractRandomData.getRandomBytes(
^-- Holding lock: com/bea/security/utils/random/SecureRandomData@0xe126eb30[biased lock]
at com/bea/security/utils/random/AbstractRandomData.getRandomBytes(
at weblogic/management/servlet/ConnectionSigner.signConnection(
^-- Holding lock: java/lang/Class@0xe9894ed8[biased lock]
at weblogic/ldap/EmbeddedLDAP.getInitialReplicaFromAdminServer(
at weblogic/ldap/EmbeddedLDAP.start(
at weblogic/t3/srvr/
at weblogic/work/ExecuteThread.execute(
at weblogic/work/
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
-- end of trace

Note that the "hang" occurs when native code is trying to seed the random number generator.




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