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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Error message
Date Tue, 01 Sep 2009 15:32:11 GMT
That's a bug...  Somehow you got it to try to write out a row
containing zero columns, which isn't supposed to be allowed.

-Jonathan

2009/9/1 Teodor Sigaev <teodor@sigaev.ru>:
> Hi!
> During bulk load into Cassandra it produces following error message every
> 2-3 minutes:
> ERROR [MEMTABLE-FLUSHER-POOL:7] 2009-09-01 19:17:34,628
> DebuggableThreadPoolExecutor.java (line 110) Error in ThreadPoolExecutor
> java.util.concurrent.ExecutionException: java.lang.NullPointerException
>        at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
>        at java.util.concurrent.FutureTask.get(FutureTask.java:111)
>        at
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86)
>        at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
>        at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>        at java.lang.Thread.run(Thread.java:636)
> Caused by: java.lang.NullPointerException
>        at
> org.apache.cassandra.db.ColumnIndexer.doIndexing(ColumnIndexer.java:142)
>        at
> org.apache.cassandra.db.ColumnIndexer.serialize(ColumnIndexer.java:62)
>        at
> org.apache.cassandra.db.ColumnFamilySerializer.serializeWithIndexes(ColumnFamilySerializer.java:77)
>        at org.apache.cassandra.db.Memtable.flush(Memtable.java:210)
>        at
> org.apache.cassandra.db.ColumnFamilyStore$2.run(ColumnFamilyStore.java:1234)
>        at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>        at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>        ... 2 more
>
>
> Is it something to worry about? Snapshot
> apache-cassandra-incubating-2009-09-01_12-31-33
> --
> Teodor Sigaev                                   E-mail: teodor@sigaev.ru
>                                                   WWW: http://www.sigaev.ru/
>

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