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Flume error in FIleChannel
Hi,
  We are using CDH flume 1.3 (which ships with 4.2.1). We see this error in our flume logs in our production system and restarting flume did not help. Looking at the flume code, it appears to be expecting the byte to be an OPERATION, but is not. Any ideas on what happened?

Thanks,
~Rahul.
27 Jun 2013 05:58:12,246 INFO  [Log-BackgroundWorker-ch3] (org.apache.flume.channel.file.LogFileV3$MetaDataWriter.markCheckpoint:85)  - Updating log-780.meta currentPosition = 68617970, logWriteOrderID = 1400053754907
27 Jun 2013 05:58:12,248 INFO  [Log-BackgroundWorker-ch3] (org.apache.flume.channel.file.Log.writeCheckpoint:898)  - Updated checkpoint for file: /flume3/data/log-780 position: 68617970 logWriteOrderID: 1400053754907
27 Jun 2013 05:58:12,529 INFO  [Log-BackgroundWorker-ch2] (org.apache.flume.channel.file.EventQueueBackingStoreFile.beginCheckpoint:108)  - Start checkpoint for /flume2/checkpoint/checkpoint, elements to sync = 43941
27 Jun 2013 05:58:12,531 INFO  [Log-BackgroundWorker-ch2] (org.apache.flume.channel.file.EventQueueBackingStoreFile.checkpoint:120)  - Updating checkpoint metadata: logWriteOrderID: 1400053760540, queueSize: 0, queueHead: 16264802
27 Jun 2013 05:58:12,583 INFO  [Log-BackgroundWorker-ch2] (org.apache.flume.channel.file.LogFileV3$MetaDataWriter.markCheckpoint:85)  - Updating log-786.meta currentPosition = 66046989, logWriteOrderID = 1400053760540
27 Jun 2013 05:58:12,585 INFO  [Log-BackgroundWorker-ch2] (org.apache.flume.channel.file.Log.writeCheckpoint:898)  - Updated checkpoint for file: /flume2/data/log-786 position: 66046989 logWriteOrderID: 1400053760540
27 Jun 2013 05:58:17,679 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.EventQueueBackingStoreFile.beginCheckpoint:108)  - Start checkpoint for /flume1/checkpoint/checkpoint, elements to sync = 225955
27 Jun 2013 05:58:17,682 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.EventQueueBackingStoreFile.checkpoint:120)  - Updating checkpoint metadata: logWriteOrderID: 1400053832535, queueSize: 7255426, queueHead: 1778328
27 Jun 2013 05:58:17,736 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.LogFileV3$MetaDataWriter.markCheckpoint:85)  - Updating log-781.meta currentPosition = 652840345, logWriteOrderID = 1400053832535
27 Jun 2013 05:58:17,738 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.Log.writeCheckpoint:898)  - Updated checkpoint for file: /flume1/data/log-781 position: 652840345 logWriteOrderID: 1400053832535
27 Jun 2013 05:58:17,739 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.LogFile$RandomReader.close:356)  - Closing RandomReader /flume1/data/log-779
27 Jun 2013 05:58:17,745 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.LogFileV3$MetaDataWriter.markCheckpoint:85)  - Updating log-779.meta currentPosition = 1599537606, logWriteOrderID = 1400053832535
27 Jun 2013 05:58:17,746 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.LogFile$RandomReader.close:356)  - Closing RandomReader /flume1/data/log-780
27 Jun 2013 05:58:17,752 INFO  [Log-BackgroundWorker-ch1] (org.apache.flume.channel.file.LogFileV3$MetaDataWriter.markCheckpoint:85)  - Updating log-780.meta currentPosition = 1610002802, logWriteOrderID = 1400053832535
27 Jun 2013 05:58:25,538 ERROR [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.flume.sink.hdfs.HDFSEventSink.process:457)  - process failed
java.lang.IllegalStateException: 1
        at com.google.common.base.Preconditions.checkState(Preconditions.java:145)
        at org.apache.flume.channel.file.LogFile$RandomReader.get(LogFile.java:335)
        at org.apache.flume.channel.file.Log.get(Log.java:478)
        at org.apache.flume.channel.file.FileChannel$FileBackedTransaction.doTake(FileChannel.java:500)
        at org.apache.flume.channel.BasicTransactionSemantics.take(BasicTransactionSemantics.java:113)
        at org.apache.flume.channel.BasicChannelSemantics.take(BasicChannelSemantics.java:95)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:386)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
        at java.lang.Thread.run(Thread.java:662)
27 Jun 2013 05:58:25,558 ERROR [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.flume.SinkRunner$PollingRunner.run:160)  - Unable to deliver event. Exception follows.
org.apache.flume.EventDeliveryException: java.lang.IllegalStateException: 1
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:461)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalStateException: 1
        at com.google.common.base.Preconditions.checkState(Preconditions.java:145)
        at org.apache.flume.channel.file.LogFile$RandomReader.get(LogFile.java:335)
        at org.apache.flume.channel.file.Log.get(Log.java:478)
        at org.apache.flume.channel.file.FileChannel$FileBackedTransaction.doTake(FileChannel.java:500)
        at org.apache.flume.channel.BasicTransactionSemantics.take(BasicTransactionSemantics.java:113)
        at org.apache.flume.channel.BasicChannelSemantics.take(BasicChannelSemantics.java:95)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:386)
        ... 3 more
27 Jun 2013 05:58:34,033 INFO  [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.flume.channel.file.LogFile$RandomReader.checkOut:396)  - Opening /flume1/data/log-780 for read, remaining capacity is 50
27 Jun 2013 05:58:34,070 ERROR [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.flume.sink.hdfs.HDFSEventSink.process:457)  - process failed
+
Hari Shreedharan 2013-06-27, 18:24
+
Rahul Ravindran 2013-06-27, 20:34
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Bhaskar V. Karambelkar 2013-10-15, 19:24