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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-6820) NPE in MeteredFlusher.run
Date Sat, 22 Mar 2014 03:02:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis resolved CASSANDRA-6820.
---------------------------------------

    Resolution: Fixed
      Reviewer: Jonathan Ellis
      Assignee: Nicolas Favre-Felix

I bet you are right.  Fixed in 535c56fb217c1a12d2fb9a217203c03d26642444

> NPE in MeteredFlusher.run
> -------------------------
>
>                 Key: CASSANDRA-6820
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6820
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Nicolas Favre-Felix
>            Assignee: Nicolas Favre-Felix
>            Priority: Minor
>             Fix For: 2.0.7
>
>
> Hello,
> I've been seeing this exception with Cassandra 2.0.5:
> {code}
> ERROR 15:41:46,754 Exception in thread Thread[OptionalTasks:1,5,main]
> java.lang.NullPointerException
> 	at org.apache.cassandra.db.MeteredFlusher.run(MeteredFlusher.java:40)
> 	at org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable.run(DebuggableScheduledThreadPoolExecutor.java:75)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:744)
> {code}
> Could it be that {{Memtable.activelyMeasuring}} becomes null right after the test?



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