flume消费kafka到hdfs异常

21/03/21 15:58:20 INFO utils.AppInfoParser: Kafka version : 0.9.0.1
21/03/21 15:58:20 INFO utils.AppInfoParser: Kafka commitId : 23c69d62a0cabf06
21/03/21 15:58:20 INFO utils.AppInfoParser: Kafka version : 0.9.0.1
21/03/21 15:58:20 INFO utils.AppInfoParser: Kafka commitId : 23c69d62a0cabf06
21/03/21 15:58:20 INFO kafka.SourceRebalanceListener: topic topic_event - partition 0 assigned.
21/03/21 15:58:20 INFO kafka.SourceRebalanceListener: topic topic_event - partition 0 revoked.
21/03/21 15:58:21 INFO kafka.KafkaSource: Kafka source r1 started.
21/03/21 15:58:21 INFO instrumentation.MonitoredCounterGroup: Monitored counter group for type: SOURCE, name: r1: Successfully registered new MBean.
21/03/21 15:58:21 INFO instrumentation.MonitoredCounterGroup: Component type: SOURCE, name: r1 started
21/03/21 15:58:24 INFO internals.AbstractCoordinator: Attempt to heart beat failed since the group is rebalancing, try to re-join group.
21/03/21 15:58:24 INFO kafka.SourceRebalanceListener: topic topic_event - partition 0 assigned.
21/03/21 15:58:24 INFO kafka.SourceRebalanceListener: topic topic_start - partition 0 assigned.
21/03/21 15:58:24 INFO kafka.KafkaSource: Kafka source r2 started.
21/03/21 15:58:24 INFO instrumentation.MonitoredCounterGroup: Monitored counter group for type: SOURCE, name: r2: Successfully registered new MBean.
21/03/21 15:58:24 INFO instrumentation.MonitoredCounterGroup: Component type: SOURCE, name: r2 started
21/03/21 15:59:26 ERROR kafka.KafkaSource: KafkaSource EXCEPTION, {}
java.lang.IllegalStateException: Channel closed [channel=c2]. Due to java.lang.NullPointerException: null
   at org.apache.flume.channel.file.FileChannel.createTransaction(FileChannel.java:348)
   at org.apache.flume.channel.BasicChannelSemantics.getTransaction(BasicChannelSemantics.java:122)
   at org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:183)
   at org.apache.flume.source.kafka.KafkaSource.doProcess(KafkaSource.java:295)
   at org.apache.flume.source.AbstractPollableSource.process(AbstractPollableSource.java:60)
   at org.apache.flume.source.PollableSourceRunner$PollingRunner.run(PollableSourceRunner.java:133)
   at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
   at org.apache.flume.channel.file.Log.writeCheckpoint(Log.java:1061)
   at org.apache.flume.channel.file.Log.replay(Log.java:499)
   at org.apache.flume.channel.file.FileChannel.start(FileChannel.java:298)
   at org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:249)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   ... 1 more