Brock Noland created FLUME-1420:
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Summary: Exception should be thrown if we cannot instaniate an
EventSerializer
Key: FLUME-1420
URL: https://issues.apache.org/jira/browse/FLUME-1420
Project: Flume
Issue Type: Bug
Components: Sinks+Sources
Affects Versions: v1.2.0
Reporter: Brock Noland
Currently EventSerailizerFactory returns null if it cannot instantiate the
class. Then the caller NPEs because they don't expect null. If we cannot
satisfy the caller we should throw an exception
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2012-08-02 16:38:26,489 ERROR serialization.EventSerializerFactory: Unable to
instantiate Builder from org.apache.flume.serialization.BodyTextEventSerializer
2012-08-02 16:38:26,490 WARN hdfs.HDFSEventSink: HDFS IO error
java.io.IOException: java.lang.NullPointerException
at org.apache.flume.sink.hdfs.BucketWriter.doOpen(BucketWriter.java:202)
at
org.apache.flume.sink.hdfs.BucketWriter.access$000(BucketWriter.java:48)
at org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:155)
at org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:152)
at
org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:125)
at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:152)
at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:307)
at
org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:717)
at
org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:714)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at
org.apache.flume.sink.hdfs.HDFSDataStream.open(HDFSDataStream.java:75)
at org.apache.flume.sink.hdfs.BucketWriter.doOpen(BucketWriter.java:188)
... 13 more
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