[infinispan-dev] NPE in SingleFileStore during node shutdown

[Andreas Kruthoff]

Hi Dev


 From time to time, I'm running into this exception which causes the
node to hang.

Exception in thread "persistence-thread--p5-t1"
org.infinispan.persistence.spi.PersistenceException:
java.lang.NullPointerException
        at
org.infinispan.persistence.file.SingleFileStore$2.run(SingleFileStore.java:672)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
        at
org.infinispan.persistence.file.SingleFileStore.free(SingleFileStore.java:306)
        at
org.infinispan.persistence.file.SingleFileStore.access$1200(SingleFileStore.java:63)
        at
org.infinispan.persistence.file.SingleFileStore$2.run(SingleFileStore.java:670)
        ... 3 more


My scenario:

Start 3 distributed nodes, owners="2", filestore with preload="true"
shared="true" purge="false". About 20 Mio entries in the .dat file.

The state-transfer takes about 5 Minutes, the cluster is ready
afterwards, but still very busy operating on the filestore!

If I stop a node now, the exception happens. If I wait for about 30
Minutes (after the cpu load reduces), and the shutdown of a node works
without problems. It persists its entries.

Shall I create a JIRA or am I missing something?

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