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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4207) Intermittent hang in tests and build with SUSE linux running under VMWare with "Virtual Machine Interface " enabled
Date Mon, 04 May 2009 23:39:30 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kathey Marsden updated DERBY-4207:
----------------------------------

    Attachment: rpt.ksh
                ClassForNameTest.java

Here is the reproduction I have been using. It just does a Class.forName() on ClientDatasource.
  Just add . and derbyclient.jar to your CLASSPATH and run:

rpt.ksh java ClassForNameTest

which will repeat 10,000 times.  When you stop seeing regular output on the screen, you know
it's hung.

 It is not that reliable. This morning it hit the issue after only 128 executions. Then I
reran and it took more than 7000 (most of the day) to occur again.  The problem however is
not specific to ClientDataSource.  We have seen hangs in sysinfo and even the build's little
split messages program.

I tried extracting parts of ClientDataSource and EncryptionManager from the derby jar, but
haven't been able o get a repoduction without the Derby jars yet.


> Intermittent hang in tests and build with SUSE linux running  under VMWare with "Virtual
Machine Interface " enabled
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4207
>                 URL: https://issues.apache.org/jira/browse/DERBY-4207
>             Project: Derby
>          Issue Type: Bug
>          Components: Build tools, Test
>    Affects Versions: 10.5.1.2
>         Environment: java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build pxi32devifx-20070806 (SR5a))
> IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 Linux x86-32 j9vmxi3223-20070426 (JIT enabled)
> J9VM - 20070420_12448_lHdSMR
> JIT  - 20070419_1806_r8
> GC   - 200704_19)
> JCL  - 20070725
> java version "1.4.2"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
> Classic VM (build 1.4.2, J2RE 1.4.2 IBM build cxia32142-20061124 (SR7) (JIT enabled:
jitc))
> On SUSE linux running under VMWare
> SLES 10 service pack 2
>  VMware ESX Server 3i, 3.5.0, 158869
> Model: eserver xSeries 345 -[8670MAX]
> Processors:2 CPU x 3.059 GHz
> Processor Type: Intel(R) Xeon(TM) CPU 3.06GHz
> Hyperthreading: Active
> Total Memory: 8.00 GB
> Number of NICs: 2
> Virtual Machines: 6
> VMotion Enabled: No
>            Reporter: Kathey Marsden
>            Assignee: Kathey Marsden
>         Attachments: ClassForNameTest.java, rpt.ksh, samplejavacores.zip
>
>
> We made a   change  to enable the "Virtual Machine Interface " between the VM server
and the SUSE Linux client, to correct a time calculation issue in this environment. Since
then we have been seeing intermittent hangs, once in the build during splitmessages and several
times in the tests.  The hang always seems to be in some native code invoked from an internal
java class.  
> This is lkely a VMWare bug, rather than Derby or JVM bug. Once that is verified I will
close this invald, but thought I would file it in case users encounter the issue.
> I will post a few sample javacore files.  Here is one sample trace:
> 1XMTHDINFO     All Thread Details
> NULL           ------------------
> NULL           
> 2XMFULLTHDDUMP Full thread dump J9 VM (J2RE 5.0 IBM J9 2.3 Linux x86-32 build 20070420_12448_lHdSMR,
native threads):
> 3XMTHREADINFO      "main" (TID:0x0806CB00, sys_thread_t:0x0805C380, state:CW, native
ID:0x000016DC) prio=5
> 4XESTACKTRACE          at java/lang/String.intern(Native Method)
> 4XESTACKTRACE          at java/lang/Class.getName(Class.java:1061)
> 4XESTACKTRACE          at com/ibm/oti/vm/AbstractClassLoader.getPackageName(AbstractClassLoader.java:362)
> 4XESTACKTRACE          at com/ibm/oti/vm/BootstrapClassLoader.loadClass(BootstrapClassLoader.java:71)
> 4XESTACKTRACE          at com/ibm/oti/vm/VM.findClassOrNull(Native Method)
> 4XESTACKTRACE          at com/ibm/oti/vm/BootstrapClassLoader.loadClass(BootstrapClassLoader.java:67)
> 4XESTACKTRACE          at com/ibm/security/cert/CertificateFactoryImpl.engineGenerateCertPath(CertificateFactoryImpl.java:563)
> 4XESTACKTRACE          at java/security/cert/CertificateFactory.generateCertPath(CertificateFactory.java:297)
> 4XESTACKTRACE          at sun/security/util/SignatureFileVerifier.getSigners(SignatureFileVerifier.java:487)
> 4XESTACKTRACE          at sun/security/util/SignatureFileVerifier.processImpl(SignatureFileVerifier.java:231)
> 4XESTACKTRACE          at sun/security/util/SignatureFileVerifier.process(SignatureFileVerifier.java:199)
> 4XESTACKTRACE          at java/util/jar/JarVerifier.processEntry(JarVerifier.java:300)
> 4XESTACKTRACE          at java/util/jar/JarVerifier.update(JarVerifier.java:212)
> 4XESTACKTRACE          at java/util/jar/JarFile.initializeVerifier(JarFile.java:352)
> 4XESTACKTRACE          at java/util/jar/JarFile.getInputStream(JarFile.java:429)
> 4XESTACKTRACE          at sun/misc/URLClassPath$JarLoader$1.getInputStream(URLClassPath.java:895)
> 4XESTACKTRACE          at sun/misc/Resource.cachedInputStream(Resource.java:96)
> 4XESTACKTRACE          at sun/misc/Resource.getByteBuffer(Resource.java:151)
> 4XESTACKTRACE          at java/net/URLClassLoader.defineClass(URLClassLoader.java:546)
> 4XESTACKTRACE          at java/net/URLClassLoader.access$400(URLClassLoader.java:120)
> 4XESTACKTRACE          at java/net/URLClassLoader$ClassFinder.run(URLClassLoader.java:962)
> 4XESTACKTRACE          at java/security/AccessController.doPrivileged(AccessController.java:275)
> 4XESTACKTRACE          at java/net/URLClassLoader.findClass(URLClassLoader.java:488)
> 4XESTACKTRACE          at java/lang/ClassLoader.loadClass(ClassLoader.java:607)
> 4XESTACKTRACE          at java/lang/ClassLoader.loadClass(ClassLoader.java:599)
> 4XESTACKTRACE          at sun/misc/Launcher$AppClassLoader.loadClass(Launcher.java:327)
> 4XESTACKTRACE          at java/lang/ClassLoader.loadClass(ClassLoader.java:573)
> 4XESTACKTRACE          at sun/security/jca/ProviderConfig$3.run(ProviderConfig.java:273)
> 4XESTACKTRACE          at java/security/AccessController.doPrivileged(AccessController.java:193)
> 4XESTACKTRACE          at sun/security/jca/ProviderConfig.doLoadProvider(ProviderConfig.java:264)
> 4XESTACKTRACE          at sun/security/jca/ProviderConfig.getProvider(ProviderConfig.java:244)
> 4XESTACKTRACE          at sun/security/jca/ProviderList.loadAll(ProviderList.java:280)
> 4XESTACKTRACE          at sun/security/jca/ProviderList.removeInvalid(ProviderList.java:297)
> 4XESTACKTRACE          at sun/security/jca/Providers.getFullProviderList(Providers.java:182)
> 4XESTACKTRACE          at java/security/Security.getProviders(Security.java:455)
> 4XESTACKTRACE          at java/security/Security.getProviders(Security.java:602)
> 4XESTACKTRACE          at java/security/Security.getProviders(Security.java:548)
> 4XESTACKTRACE          at org/apache/derby/client/am/EncryptionManager.<init>(Bytecode
PC:26)
> 4XESTACKTRACE          at org/apache/derby/jdbc/ClientBaseDataSource.<clinit>(Bytecode
PC:9)
> 4XESTACKTRACE          at java/lang/J9VMInternals.initializeImpl(Native Method)
> 4XESTACKTRACE          at java/lang/J9VMInternals.initialize(J9VMInternals.java:192(Compiled
Code))
> 4XESTACKTRACE          at java/lang/J9VMInternals.initialize(J9VMInternals.java:157(Compiled
Code))
> 4XESTACKTRACE          at java/lang/Class.forNameImpl(Native Method)
> 4XESTACKTRACE          at java/lang/Class.forName(Class.java:130)
> 4XESTACKTRACE          at org/apache/derbyTesting/junit/SecurityManagerSetup.getURL(SecurityManagerSetup.java:363)
> 4XESTACKTRACE          at org/apache/derbyTesting/junit/SecurityManagerSetup.determineClasspath(SecurityManagerSetup.java:325)
> 4XESTACKTRACE          at org/apache/derbyTesting/junit/SecurityManagerSetup.<clinit>(SecurityManagerSetup.java:68)
> 4XESTACKTRACE          at java/lang/J9VMInternals.initializeImpl(Native Method)
> 4XESTACKTRACE          at java/lang/J9VMInternals.initialize(J9VMInternals.java:192(Compiled
Code))
> 4XESTACKTRACE          at org/apache/derbyTesting/functionTests/harness/jvm.getSecurityProps(jvm.java:384)
> 4XESTACKTRACE          at org/apache/derbyTesting/functionTests/harness/jvm.setSecurityProps(jvm.java:344)
> 4XESTACKTRACE          at org/apache/derbyTesting/functionTests/harness/RunTest.buildTestCommand(RunTest.java:2371)
> 4XESTACKTRACE          at 

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