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: [email protected]
WWW: http://www.sigaev.ru/
