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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: unable to start cassandra
Date Tue, 03 Aug 2010 15:44:25 GMT
On Tue, Aug 3, 2010 at 10:47 AM, Maciej Lisowski
<m.lisowski@powerprice.pl> wrote:
> Hi all,
>
> I’m new here and new with Cassandra and I’ve got problem to run it (v.
> 0.6.4) with jdk1.6.0_21.
>
> When I type “cassandra” to run it I get error:
>
>
>
> ERROR 16:23:53,803 Uncaught exception in thread
> Thread[ROW-MUTATION-STAGE:5,5,main]
>
> java.util.concurrent.ExecutionException: java.lang.RuntimeException:
> java.lang.NullPointerException
>
>         at
> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>
>         at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>
>         at
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86)
>
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888)
>
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>
>         at java.lang.Thread.run(Thread.java:619)
>
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
>
>         at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
>
>         at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
>
>         at
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>
>         ... 2 more
>
> Caused by: java.lang.NullPointerException
>
>         at
> org.apache.cassandra.db.Table$TableMetadata.getColumnFamilyId(Table.java:131)
>
>         at org.apache.cassandra.db.Table.getColumnFamilyId(Table.java:364)
>
>         at
> org.apache.cassandra.db.commitlog.CommitLog$4.runMayThrow(CommitLog.java:256)
>
>         at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>
>         ... 6 more
>
>
>
> I was looking for info what could happen but I didn’t find… can someone help
> me with this?
>
> If I have to send something more (configuration or whatever) let me know
>
>
>
> Maciek

Something similar happened to me when upgrading from 6.1 -> 6.2. Even
though the on-disk format of the SSTABLES is the same, sometimes the
wire-format serialization of Future Tasks change. If that is the case,
it means that the upgrade can NOT be done with a rolling restart. I am
not sure this is the case here but that might help.

Edward

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