[jbosscache-dev] MVCC Lock Timeout

[Kavitha Durai]

Getting Lock Timout error  often , cache mode is local  . No other
process holds the node. What could be the reason ?.

 

I am running a batch process to preload some data , most of them
succeeds and some throws the below error .

 

I

            <attribute name="NodeLockingScheme">MVCC</attribute>


 

      <attribute name="CacheMode">LOCAL</attribute>

 

      <attribute name="LockAcquisitionTimeout">30000</attribute>

 

      <attribute
name="lockParentForChildInsertRemove">false</attribute>

 

 

org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn
[/ASOF/AXE/20100308/14] after [30000] milliseconds for requestor
[GlobalTransaction:<null>:55]! Lock held by
[GlobalTransaction:<null>:50]

            at
org.jboss.cache.mvcc.MVCCNodeHelper.acquireLock(MVCCNodeHelper.java:170)

            at
org.jboss.cache.mvcc.MVCCNodeHelper.wrapNodeForWriting(MVCCNodeHelper.ja
va:259)

            at
org.jboss.cache.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLo
aderInterceptor.java:282)

            at
org.jboss.cache.interceptors.CacheLoaderInterceptor.visitGetKeyValueComm
and(CacheLoaderInterceptor.java:158)

            at
org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal
ueCommand.java:97)

            at
org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept
or(CommandInterceptor.java:116)

            at
org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(Comma
ndInterceptor.java:131)

            at
org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac
tVisitor.java:110)

            at
org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal
ueCommand.java:97)

            at
org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept
or(CommandInterceptor.java:116)

            at
org.jboss.cache.interceptors.TxInterceptor.attachGtxAndPassUpChain(TxInt
erceptor.java:284)

            at
org.jboss.cache.interceptors.TxInterceptor.handleDefault(TxInterceptor.j
ava:271)

            at
org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac
tVisitor.java:110)

            at
org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal
ueCommand.java:97)

            at
org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept
or(CommandInterceptor.java:116)

            at
org.jboss.cache.interceptors.CacheMgmtInterceptor.visitGetKeyValueComman
d(CacheMgmtInterceptor.java:77)

            at
org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal
ueCommand.java:97)

            at
org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept
or(CommandInterceptor.java:116)

            at
org.jboss.cache.interceptors.InvocationContextInterceptor.handleAll(Invo
cationContextInterceptor.java:178)

            at
org.jboss.cache.interceptors.InvocationContextInterceptor.handleDefault(
InvocationContextInterceptor.java:130)

            at
org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac
tVisitor.java:110)

            at
org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal
ueCommand.java:97)

            at
org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.ja
va:265)

            at
org.jboss.cache.invocation.CacheInvocationDelegate.get(CacheInvocationDe
legate.java:448)

            at
org.jboss.cache.pojo.impl.InternalHelper.get(InternalHelper.java:100)

            at
org.jboss.cache.pojo.impl.InternalHelper.getPojoReference(InternalHelper
.java:47)

            at
org.jboss.cache.pojo.impl.PojoCacheDelegate.exists(PojoCacheDelegate.jav
a:352)

            at
org.jboss.cache.pojo.impl.PojoCacheImpl.exists(PojoCacheImpl.java:236)

            at com.trg.cache.CacheManager.exists(CacheManager.java:139)

            at com.trg.cache.CacheManager.detach(CacheManager.java:169)

            at
com.trg.ricemanager.TemporalCacheManager.clearCache(TemporalCacheManager
.java:349)

            at
com.trg.ricemanager.TemporalCacheManager.clearAllFundsCache(TemporalCach
eManager.java:313)

            at
com.trg.ricemanager.TemporalCacheManager$AsOfDataPreloadThread.run(Tempo
ralCacheManager.java:447)

INFO 14 Apr 16:59:15 [TemporalDataPreloadThread]
ricemanager.TemporalCacheManager (TemporalCacheManager.java:355) -
Cleared cache Successfully for the fund id 15 and for asOfDate 20100308

Regards,

Kavitha Durai,

The Rohatyn Group,

212-984-3512.

 



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