I found if agent46.sinks.myhdfssink.hdfs.batchSize >= 100, it will report this error.
if I set this configure to 10, it's ok. but it's a bit slower.

Best Regards,
Andy

2013/2/26 <ablozhou@gmail.com>
more logs

2013-02-26 14:37:00,380 (SinkRunner-PollingRunner-DefaultSinkProcessor) [ERROR - org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:160)] Unable to deliver event. Exception follows.
org.apache.flume.EventDeliveryException: org.apache.flume.ChannelException: Take list for MemoryTransaction, capacity 100 full, consider committing more frequently, increasing capacity, or increasing thread count
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:464)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.flume.ChannelException: Take list for MemoryTransaction, capacity 100 full, consider committing more frequently, increasing capacity, or increasing thread count
        at org.apache.flume.channel.MemoryChannel$MemoryTransaction.doTake(MemoryChannel.java:100)
        at org.apache.flume.channel.BasicTransactionSemantics.take(BasicTransactionSemantics.java:113)
        at org.apache.flume.channel.BasicChannelSemantics.take(BasicChannelSemantics.java:95)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:391)
        ... 3 more
2013-02-26 14:37:02,854 (pool-7-thread-1) [ERROR - org.apache.flume.source.AvroSource.appendBatch(AvroSource.java:261)] Avro source userlogsrc: Unable to process event batch. Exception follows.
org.apache.flume.ChannelException: Unable to put batch on required channel: org.apache.flume.channel.MemoryChannel{name: memch1}
        at org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:200)
        at org.apache.flume.source.AvroSource.appendBatch(AvroSource.java:259)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.apache.avro.ipc.specific.SpecificResponder.respond(SpecificResponder.java:88)
        at org.apache.avro.ipc.Responder.respond(Responder.java:149)
        at org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.messageReceived(NettyServer.java:188)
        at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:75)
        at org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:173)
        at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
        at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:792)
        at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
        at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:321)
        at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:303)
        at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:208)
        at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:75)
        at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
        at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
        at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
        at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
        at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94)
        at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:364)
        at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:238)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38)
        at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.flume.ChannelException: Space for commit to queue couldn't be acquired Sinks are likely not keeping up with sources, or the buffer size is too tight
        at org.apache.flume.channel.MemoryChannel$MemoryTransaction.doCommit(MemoryChannel.java:126)
        at org.apache.flume.channel.BasicTransactionSemantics.commit(BasicTransactionSemantics.java:151)
        at org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:192)
        ... 28 more


2013/2/26 <ablozhou@gmail.com>
hello,
I using flume-ng send data from windows to linux hdfs through avro protocol, and encountered this error:

2013-02-26 12:21:02,908 (pool-8-thread-1) [DEBUG - org.apache.flume.source.AvroSource.appendBatch(AvroSource.java:244)] Avro source userlogsrc: Received avro event batch of 100 events.

2013-02-26 12:21:03,107 (SinkRunner-PollingRunner-DefaultSinkProcessor) [ERROR - org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:460)] process failed
org.apache.flume.ChannelException: Take list for MemoryTransaction, capacity 100 full, consider committing more frequently, increasing capacity, or increasing thread count
        at org.apache.flume.channel.MemoryChannel$MemoryTransaction.doTake(MemoryChannel.java:100)
        at org.apache.flume.channel.BasicTransactionSemantics.take(BasicTransactionSemantics.java:113)
        at org.apache.flume.channel.BasicChannelSemantics.take(BasicChannelSemantics.java:95)
        at org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:391)
        at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
        at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.apache.flume.ChannelException: Space for commit to queue couldn't be acquired Sinks are likely not keeping up with sources, or the buffer size is too tight
        at org.apache.flume.channel.MemoryChannel$MemoryTransaction.doCommit(MemoryChannel.java:126)
        at org.apache.flume.channel.BasicTransactionSemantics.commit(BasicTransactionSemantics.java:151)
        at org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:192)
        ... 28 more

I have set memory channel capacity to 1000, but it still report this error.
some one can give me any advice?

Thanks,
Andy

hdfs.conf:

agent46.sources = userlogsrc gamelogsrc
agent46.channels = memch1
agent46.sinks = myhdfssink

#channels:
agent46.channels.memch1.type = memory
agent46.channels.memch1.capacity = 10000
agent46.channels.memch1.transactionCapactiy = 100
#sources:
#userlogsrc:
#agent46.sources.userlogsrc.type = syslogTcp
agent46.sources.userlogsrc.type = avro
agent46.sources.userlogsrc.port = 5140
agent46.sources.userlogsrc.bind= 0.0.0.0
#agent46.sources.userlogsrc.host= hadoop48
agent46.sources.userlogsrc.interceptors = i1 i2 i3
agent46.sources.userlogsrc.interceptors.i1.type = org.apache.flume.interceptor.HostInterceptor$Builder
agent46.sources.userlogsrc.interceptors.i1.preserveExisting = true
#agent46.sources.userlogsrc.interceptors.i1.hostHeader = hostname
agent46.sources.userlogsrc.interceptors.i1.useIP = false
agent46.sources.userlogsrc.interceptors.i2.type = org.apache.flume.interceptor.TimestampInterceptor$Builder
agent46.sources.userlogsrc.interceptors.i3.type = static
agent46.sources.userlogsrc.interceptors.i3.key = datacenter
agent46.sources.userlogsrc.interceptors.i3.value = userdata
agent46.sources.userlogsrc.channels = memch1
#gamelogsrc:
#agent46.sources.gamelogsrc.type = syslogTcp
agent46.sources.gamelogsrc.type = avro
agent46.sources.gamelogsrc.port = 5150
agent46.sources.gamelogsrc.bind= 0.0.0.0
agent46.sources.gamelogsrc.channels = memch1
#sinks:
agent46.sinks.myhdfssink.channel = memch1

agent46.sinks.myhdfssink.type = hdfs
agent46.sinks.myhdfssink.hdfs.rollInterval = 120
agent46.sinks.myhdfssink.hdfs.appendTimeout = 1000
agent46.sinks.myhdfssink.hdfs.rollSize = 209715200
agent46.sinks.myhdfssink.hdfs.rollCount = 600000
agent46.sinks.myhdfssink.hdfs.batchSize = 1000
agent46.sinks.myhdfssink.hdfs.txnEventMax = 100000
agent46.sinks.myhdfssink.hdfs.threadsPoolSize= 100
agent46.sinks.myhdfssink.hdfs.path = hdfs://h46:9000/flume/%{filename}/%m%d
#agent46.sinks.myhdfssink.hdfs.filePrefix = userlogsrc.%{host}
#agent46.sinks.myhdfssink.hdfs.filePrefix = %{filename}.%{hostname}.%{datacenter}.%Y%m%d
agent46.sinks.myhdfssink.hdfs.filePrefix = %{filename}.%{host}.%Y%m%d
#agent46.sinks.myhdfssink.hdfs.rollInterval = 60
#agent46.sinks.myhdfssink.hdfs.fileType = SequenceFile
agent46.sinks.myhdfssink.hdfs.fileType = DataStream
#agent46.sinks.myhdfssink.hdfs.file.writeFormat= Text