[ http://issues.apache.org/jira/browse/DERBY-764?page=all ]
Mike Matrigali updated DERBY-764:
---------------------------------
Component: Store
Description:
Found one Java-level deadlock:
=============================
"Thread-2":
waiting to lock monitor 0x00a8872c (object 0x03002be8, a org.apache.derby.impl
.services.locks.LockSet),
which is held by "Thread-0"
"Thread-0":
waiting to lock monitor 0x00a8882c (object 0x03022168, a org.apache.derby.impl
.services.reflect.UpdateLoader),
which is held by "Thread-2"
Java stack information for the threads listed above:
===================================================
"Thread-2":
at org.apache.derby.impl.services.locks.LockSet.lockObject(LockSet.java:
294)
- waiting to lock <0x03002be8> (a org.apache.derby.impl.services.locks.L
ockSet)
at org.apache.derby.impl.services.locks.SinglePool.lockAnObject(SinglePo
ol.java:174)
at org.apache.derby.impl.services.locks.SinglePool.lockObject(SinglePool
.java:226)
at org.apache.derby.impl.services.reflect.UpdateLoader.lockClassLoader(U
pdateLoader.java:265)
at org.apache.derby.impl.services.reflect.UpdateLoader.modifyJar(UpdateL
oader.java:219)
- locked <0x03022168> (a org.apache.derby.impl.services.reflect.UpdateLo
ader)
at org.apache.derby.impl.services.reflect.DatabaseClasses.notifyModifyJa
r(DatabaseClasses.java:255)
at org.apache.derby.impl.sql.execute.JarUtil.notifyLoader(JarUtil.java:4
01)
at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:135)
at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:104)
at org.apache.derby.impl.sql.execute.AddJarConstantAction.executeConstan
tAction(AddJarConstantAction.java:96)
at org.apache.derby.impl.sql.execute.JarDDL.add(JarDDL.java:45)
at org.apache.derby.catalog.SystemProcedures.INSTALL_JAR(SystemProcedure
s.java:1011)
at org.apache.derby.exe.ac2753c07bx0108x308exa52cxffffec5b7c421.g0(Unkno
wn Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMe
thod.java:45)
at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallSta
tementResultSet.java:67)
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPre
paredStatement.java:368)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
ment.java:1142)
- locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:550)
- locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:480)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3$A
syncStatementThread.run(OnlineBackupTest3.java:451)
"Thread-0":
at org.apache.derby.impl.services.reflect.UpdateLoader.needReload(Update
Loader.java:304)
- waiting to lock <0x03022168> (a org.apache.derby.impl.services.reflect
.UpdateLoader)
at org.apache.derby.impl.services.reflect.ClassLoaderLock.unlockEvent(Up
dateLoader.java:362)
at org.apache.derby.impl.services.locks.Lock.unlock(Lock.java:128)
at org.apache.derby.impl.services.locks.LockControl.unlock(LockControl.j
ava:160)
at org.apache.derby.impl.services.locks.LockSet.unlock(LockSet.java:564)
- locked <0x03002be8> (a org.apache.derby.impl.services.locks.LockSet)
at org.apache.derby.impl.services.locks.LockSpace.unlockGroup(LockSpace.
java:126)
- locked <0x03153db8> (a org.apache.derby.impl.services.locks.LockSpace)
at org.apache.derby.impl.services.locks.SinglePool.unlockGroup(SinglePoo
l.java:306)
at org.apache.derby.impl.store.raw.xact.Xact.releaseAllLocks(Xact.java:1
854)
at org.apache.derby.impl.store.raw.xact.Xact.postComplete(Xact.java:1899
)
at org.apache.derby.impl.store.raw.xact.Xact.completeCommit(Xact.java:80
5)
at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:847)
at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:642)
at org.apache.derby.impl.store.access.RAMTransaction.commit(RAMTransacti
on.java:1953)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.doCom
mit(GenericLanguageConnectionContext.java:1105)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.userC
ommit(GenericLanguageConnectionContext.java:935)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.commit(Transaction
ResourceImpl.java:237)
at org.apache.derby.impl.jdbc.EmbedConnection.commit(EmbedConnection.jav
a:862)
- locked <0x031413b0> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.i
nstallJarTest(OnlineBackupTest3.java:227)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.r
unTest(OnlineBackupTest3.java:90)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.m
ain(OnlineBackupTest3.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derbyTesting.functionTests.harness.RunClass.run(RunClass.j
ava:50)
- locked <0x02fe5b78> (a org.apache.derbyTesting.functionTests.harness.R
unClass)
at java.lang.Thread.run(Thread.java:595)
Found 1 deadlock.
Note : Found this issue while doing online backup testing, , but it does not
look like online backup related,.
Scenario:
--- one thread (Thread 0) is committing a transaction with a install jar
operation in it.
--- another thread (Thread 1) is attempting to add a jar
was:
Found one Java-level deadlock:
=============================
"Thread-2":
waiting to lock monitor 0x00a8872c (object 0x03002be8, a org.apache.derby.impl
.services.locks.LockSet),
which is held by "Thread-0"
"Thread-0":
waiting to lock monitor 0x00a8882c (object 0x03022168, a org.apache.derby.impl
.services.reflect.UpdateLoader),
which is held by "Thread-2"
Java stack information for the threads listed above:
===================================================
"Thread-2":
at org.apache.derby.impl.services.locks.LockSet.lockObject(LockSet.java:
294)
- waiting to lock <0x03002be8> (a org.apache.derby.impl.services.locks.L
ockSet)
at org.apache.derby.impl.services.locks.SinglePool.lockAnObject(SinglePo
ol.java:174)
at org.apache.derby.impl.services.locks.SinglePool.lockObject(SinglePool
.java:226)
at org.apache.derby.impl.services.reflect.UpdateLoader.lockClassLoader(U
pdateLoader.java:265)
at org.apache.derby.impl.services.reflect.UpdateLoader.modifyJar(UpdateL
oader.java:219)
- locked <0x03022168> (a org.apache.derby.impl.services.reflect.UpdateLo
ader)
at org.apache.derby.impl.services.reflect.DatabaseClasses.notifyModifyJa
r(DatabaseClasses.java:255)
at org.apache.derby.impl.sql.execute.JarUtil.notifyLoader(JarUtil.java:4
01)
at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:135)
at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:104)
at org.apache.derby.impl.sql.execute.AddJarConstantAction.executeConstan
tAction(AddJarConstantAction.java:96)
at org.apache.derby.impl.sql.execute.JarDDL.add(JarDDL.java:45)
at org.apache.derby.catalog.SystemProcedures.INSTALL_JAR(SystemProcedure
s.java:1011)
at org.apache.derby.exe.ac2753c07bx0108x308exa52cxffffec5b7c421.g0(Unkno
wn Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMe
thod.java:45)
at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallSta
tementResultSet.java:67)
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPre
paredStatement.java:368)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
ment.java:1142)
- locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:550)
- locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
:480)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3$A
syncStatementThread.run(OnlineBackupTest3.java:451)
"Thread-0":
at org.apache.derby.impl.services.reflect.UpdateLoader.needReload(Update
Loader.java:304)
- waiting to lock <0x03022168> (a org.apache.derby.impl.services.reflect
.UpdateLoader)
at org.apache.derby.impl.services.reflect.ClassLoaderLock.unlockEvent(Up
dateLoader.java:362)
at org.apache.derby.impl.services.locks.Lock.unlock(Lock.java:128)
at org.apache.derby.impl.services.locks.LockControl.unlock(LockControl.j
ava:160)
at org.apache.derby.impl.services.locks.LockSet.unlock(LockSet.java:564)
- locked <0x03002be8> (a org.apache.derby.impl.services.locks.LockSet)
at org.apache.derby.impl.services.locks.LockSpace.unlockGroup(LockSpace.
java:126)
- locked <0x03153db8> (a org.apache.derby.impl.services.locks.LockSpace)
at org.apache.derby.impl.services.locks.SinglePool.unlockGroup(SinglePoo
l.java:306)
at org.apache.derby.impl.store.raw.xact.Xact.releaseAllLocks(Xact.java:1
854)
at org.apache.derby.impl.store.raw.xact.Xact.postComplete(Xact.java:1899
)
at org.apache.derby.impl.store.raw.xact.Xact.completeCommit(Xact.java:80
5)
at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:847)
at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:642)
at org.apache.derby.impl.store.access.RAMTransaction.commit(RAMTransacti
on.java:1953)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.doCom
mit(GenericLanguageConnectionContext.java:1105)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.userC
ommit(GenericLanguageConnectionContext.java:935)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.commit(Transaction
ResourceImpl.java:237)
at org.apache.derby.impl.jdbc.EmbedConnection.commit(EmbedConnection.jav
a:862)
- locked <0x031413b0> (a org.apache.derby.impl.jdbc.EmbedConnection30)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.i
nstallJarTest(OnlineBackupTest3.java:227)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.r
unTest(OnlineBackupTest3.java:90)
at org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.m
ain(OnlineBackupTest3.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derbyTesting.functionTests.harness.RunClass.run(RunClass.j
ava:50)
- locked <0x02fe5b78> (a org.apache.derbyTesting.functionTests.harness.R
unClass)
at java.lang.Thread.run(Thread.java:595)
Found 1 deadlock.
Note : Found this issue while doing online backup testing, , but it does not
look like online backup related,.
Scenario:
--- one thread (Thread 0) is committing a transaction with a install jar
operation in it.
--- another thread (Thread 1) is attempting to add a jar
> java level dead lock when jar operataion are running in parallel in
> different transactions.
> ---------------------------------------------------------------------------------------------
>
> Key: DERBY-764
> URL: http://issues.apache.org/jira/browse/DERBY-764
> Project: Derby
> Type: Bug
> Components: Store
> Reporter: Suresh Thalamati
> Priority: Minor
>
> Found one Java-level deadlock:
> =============================
> "Thread-2":
> waiting to lock monitor 0x00a8872c (object 0x03002be8, a
> org.apache.derby.impl
> .services.locks.LockSet),
> which is held by "Thread-0"
> "Thread-0":
> waiting to lock monitor 0x00a8882c (object 0x03022168, a
> org.apache.derby.impl
> .services.reflect.UpdateLoader),
> which is held by "Thread-2"
> Java stack information for the threads listed above:
> ===================================================
> "Thread-2":
> at
> org.apache.derby.impl.services.locks.LockSet.lockObject(LockSet.java:
> 294)
> - waiting to lock <0x03002be8> (a
> org.apache.derby.impl.services.locks.L
> ockSet)
> at
> org.apache.derby.impl.services.locks.SinglePool.lockAnObject(SinglePo
> ol.java:174)
> at
> org.apache.derby.impl.services.locks.SinglePool.lockObject(SinglePool
> .java:226)
> at
> org.apache.derby.impl.services.reflect.UpdateLoader.lockClassLoader(U
> pdateLoader.java:265)
> at
> org.apache.derby.impl.services.reflect.UpdateLoader.modifyJar(UpdateL
> oader.java:219)
> - locked <0x03022168> (a
> org.apache.derby.impl.services.reflect.UpdateLo
> ader)
> at
> org.apache.derby.impl.services.reflect.DatabaseClasses.notifyModifyJa
> r(DatabaseClasses.java:255)
> at
> org.apache.derby.impl.sql.execute.JarUtil.notifyLoader(JarUtil.java:4
> 01)
> at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:135)
> at org.apache.derby.impl.sql.execute.JarUtil.add(JarUtil.java:104)
> at
> org.apache.derby.impl.sql.execute.AddJarConstantAction.executeConstan
> tAction(AddJarConstantAction.java:96)
> at org.apache.derby.impl.sql.execute.JarDDL.add(JarDDL.java:45)
> at
> org.apache.derby.catalog.SystemProcedures.INSTALL_JAR(SystemProcedure
> s.java:1011)
> at
> org.apache.derby.exe.ac2753c07bx0108x308exa52cxffffec5b7c421.g0(Unkno
> wn Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMe
> thod.java:45)
> at
> org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallSta
> tementResultSet.java:67)
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPre
> paredStatement.java:368)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
> ment.java:1142)
> - locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
> :550)
> - locked <0x03141448> (a org.apache.derby.impl.jdbc.EmbedConnection30)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
> :480)
> at
> org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3$A
> syncStatementThread.run(OnlineBackupTest3.java:451)
> "Thread-0":
> at
> org.apache.derby.impl.services.reflect.UpdateLoader.needReload(Update
> Loader.java:304)
> - waiting to lock <0x03022168> (a
> org.apache.derby.impl.services.reflect
> .UpdateLoader)
> at
> org.apache.derby.impl.services.reflect.ClassLoaderLock.unlockEvent(Up
> dateLoader.java:362)
> at org.apache.derby.impl.services.locks.Lock.unlock(Lock.java:128)
> at
> org.apache.derby.impl.services.locks.LockControl.unlock(LockControl.j
> ava:160)
> at
> org.apache.derby.impl.services.locks.LockSet.unlock(LockSet.java:564)
> - locked <0x03002be8> (a org.apache.derby.impl.services.locks.LockSet)
> at
> org.apache.derby.impl.services.locks.LockSpace.unlockGroup(LockSpace.
> java:126)
> - locked <0x03153db8> (a
> org.apache.derby.impl.services.locks.LockSpace)
> at
> org.apache.derby.impl.services.locks.SinglePool.unlockGroup(SinglePoo
> l.java:306)
> at
> org.apache.derby.impl.store.raw.xact.Xact.releaseAllLocks(Xact.java:1
> 854)
> at
> org.apache.derby.impl.store.raw.xact.Xact.postComplete(Xact.java:1899
> )
> at
> org.apache.derby.impl.store.raw.xact.Xact.completeCommit(Xact.java:80
> 5)
> at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:847)
> at org.apache.derby.impl.store.raw.xact.Xact.commit(Xact.java:642)
> at
> org.apache.derby.impl.store.access.RAMTransaction.commit(RAMTransacti
> on.java:1953)
> at
> org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.doCom
> mit(GenericLanguageConnectionContext.java:1105)
> at
> org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.userC
> ommit(GenericLanguageConnectionContext.java:935)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.commit(Transaction
> ResourceImpl.java:237)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.commit(EmbedConnection.jav
> a:862)
> - locked <0x031413b0> (a org.apache.derby.impl.jdbc.EmbedConnection30)
> at
> org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.i
> nstallJarTest(OnlineBackupTest3.java:227)
> at
> org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.r
> unTest(OnlineBackupTest3.java:90)
> at
> org.apache.derbyTesting.functionTests.tests.store.OnlineBackupTest3.m
> ain(OnlineBackupTest3.java:49)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.derbyTesting.functionTests.harness.RunClass.run(RunClass.j
> ava:50)
> - locked <0x02fe5b78> (a
> org.apache.derbyTesting.functionTests.harness.R
> unClass)
> at java.lang.Thread.run(Thread.java:595)
> Found 1 deadlock.
> Note : Found this issue while doing online backup testing, , but it does not
> look like online backup related,.
> Scenario:
> --- one thread (Thread 0) is committing a transaction with a install jar
> operation in it.
> --- another thread (Thread 1) is attempting to add a jar
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