Hi, 

1) that checkpoint interval is way too low. I would leave it at the default. 

2) the exception is saying file channel is full. This could be a result of the 
low checkpoint interval or because the sink in the channel is not keeping up.  

-- 
Brock Noland
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)


On Wednesday, September 19, 2012 at 3:19 AM, Raymond Ng wrote:

> Hi all
>  
> I'm getting the following exception and as I result I lost records even using 
> File channel 
> root@test:~/flume-ng/deployment/script$ 
> (mailto:root@test:~/flume-ng/deployment/script$) 
> org.apache.flume.ChannelException: Unable to put batch on required channel: 
> FileChannel probeFileChannel2 { dataDirs: 
> [/home/local/flume-ng/filechannel2/data] }
>  at 
> org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:195)
>  at test.source.KafkaSource$PartitionManager.next(KafkaSource.java:360)
>  at test.source.KafkaSource.process(KafkaSource.java:228)
>  at 
> org.apache.flume.source.PollableSourceRunner$PollingRunner.run(PollableSourceRunner.java:137)
>  at java.lang.Thread.run(Thread.java:679)
> Caused by: org.apache.flume.ChannelException: Cannot acquire capacity. 
> [channel=probeFileChannel2]
>  at 
> org.apache.flume.channel.file.FileChannel$FileBackedTransaction.doPut(FileChannel.java:343)
>  at 
> org.apache.flume.channel.BasicTransactionSemantics.put(BasicTransactionSemantics.java:93)
>  at 
> org.apache.flume.channel.BasicChannelSemantics.put(BasicChannelSemantics.java:76)
>  at 
> org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:184)
>  ... 4 more 
>  
> my file channel config below
>  
> agent.channels.probeFileChannel2.type = FILE
> agent.channels.probeFileChannel2.checkpointDir = 
> /home/local/flume-ng/filechannel2/checkpoint
> agent.channels.probeFileChannel2.dataDirs = 
> /home/local/flume-ng/filechannel2/data
> agent.channels.probeFileChannel2.transactionCapacity = 200000
> agent.channels.probeFileChannel2.checkpointInterval = 10
> agent.channels.probeFileChannel2.maxFileSize = 1073741824
> agent.channels.probeFileChannel2.capacity = 1000000
> agent.channels.probeFileChannel2.keep-alive = 3
> agent.channels.probeFileChannel2.write-timeout = 3 
>  
> advice appreciated
> -- 
> Rgds
> Ray

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