4:16 p.m.
CacheStore throws a NPE when preparing a transaction which includes a key it doesn't
own
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Key: ISPN-903
URL: https://issues.jboss.org/browse/ISPN-903
Project: Infinispan
Issue Type: Bug
Components: Distributed Cache, Loaders and Stores, Transactions
Affects Versions: 4.2.0.Final
Reporter: Manik Surtani
Assignee: Manik Surtani
Priority: Critical
Fix For: 4.2.1.Final
When a transaction is prepared, the {{PrepareCommand}} is broadcast to all participants in
the transaction. However, recipients only replay Commands whose keys map to their node
(by consulting the {{DistributionManager}}). When the {{PrepareCommand}} reaches the
{{CacheStoreInterceptor}}, however, the {{CacheStoreInterceptor}} is unable to handle all
of the modifications in the prepare as it doesn't filter out modifications based on
what is mapped to the node in question. This results in a {{NullPointerExceptoion}} on
the receiving node, which causes the transaction to abort:
{code}
java.lang.NullPointerException
at
org.infinispan.interceptors.CacheStoreInterceptor.getStoredEntry(CacheStoreInterceptor.java:337)
at
org.infinispan.interceptors.CacheStoreInterceptor$StoreModificationsBuilder.visitPutKeyValueCommand(CacheStoreInterceptor.java:288)
at
org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:72)
at
org.infinispan.interceptors.CacheStoreInterceptor.prepareCacheLoader(CacheStoreInterceptor.java:255)
at
org.infinispan.interceptors.CacheStoreInterceptor.visitPrepareCommand(CacheStoreInterceptor.java:175)
at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:116)
at
org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118)
at
org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132)
at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:106)
at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:116)
at
org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118)
at
org.infinispan.interceptors.NotificationInterceptor.visitPrepareCommand(NotificationInterceptor.java:48)
at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:116)
at
org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118)
at org.infinispan.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:103)
at
org.infinispan.interceptors.DistTxInterceptor.visitPrepareCommand(DistTxInterceptor.java:59)
at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:116)
at
org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118)
at
org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:87)
at
org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:58)
at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:106)
at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:116)
at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:273)
at org.infinispan.commands.tx.PrepareCommand.perform(PrepareCommand.java:107)
at
org.infinispan.remoting.InboundInvocationHandlerImpl.handle(InboundInvocationHandlerImpl.java:94)
at
org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.executeCommand(CommandAwareRpcDispatcher.java:179)
at
org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.handle(CommandAwareRpcDispatcher.java:153)
at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:577)
at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:488)
at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:364)
at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:770)
at org.jgroups.JChannel.up(JChannel.java:1467)
{code}
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