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https://issues.apache.org/jira/browse/HDFS-12244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Kumar Singh reassigned HDFS-12244:
----------------------------------------

    Assignee: Anu Engineer  (was: Mukul Kumar Singh)

> Ozone: the static cache provided by ContainerCache does not work in Unit 
> tests 
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-12244
>                 URL: https://issues.apache.org/jira/browse/HDFS-12244
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Anu Engineer
>             Fix For: HDFS-7240
>
>
> Since a cluster may have >1 datanodes, a static ContainerCache is shared 
> among the datanodes.  When one datanode shutdown, the cache will be shutdown 
> so that the other datanodes cannot use the cache any more.  It results in 
> "leveldb.DBException: Closed"
> {code}
> org.iq80.leveldb.DBException: Closed
>       at org.fusesource.leveldbjni.internal.JniDB.get(JniDB.java:75)
>       at org.apache.hadoop.utils.LevelDBStore.get(LevelDBStore.java:109)
>       at 
> org.apache.hadoop.ozone.container.common.impl.KeyManagerImpl.getKey(KeyManagerImpl.java:116)
>       at 
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.handleGetSmallFile(Dispatcher.java:677)
>       at 
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.smallFileHandler(Dispatcher.java:293)
>       at 
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.dispatch(Dispatcher.java:121)
>       at 
> org.apache.hadoop.ozone.container.common.transport.server.ratis.ContainerStateMachine.dispatch(ContainerStateMachine.java:94)
>       ...
> {code}



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