The channel is checkpointing. Reducing the channels capacity or making whatever disk checkpointDir is on faster (dedicated disk, SSD, etc) would speed checkpointing.
On Mon, Apr 8, 2013 at 2:12 PM, Madhu Gmail <[email protected]>wrote: > Thanks Brock. > > But curious to know which other property setting causes this write- > timeout issue. > > I have sink batch size as 20 and no batch size on the source side of the > collector. This agent acts as a collector for other flume agents which > sends the events to the collector. > > Madhu Munagala > (214)679-2872 > > On Apr 8, 2013, at 1:42 PM, Brock Noland <[email protected]> wrote: > > There is no harm in setting write-timeout to something like 30 seconds. In > fact it probably makes sense to increase the default to 30 seconds. > > > On Mon, Apr 8, 2013 at 1:38 PM, Madhu Gmail <[email protected]>wrote: > >> >> Hello,**** >> >> ** ** >> >> I am getting below ERROR in flume agent(Acting as a collector) which is >> receiving log events from another flume agent.**** >> >> ** ** >> >> I have also copied my flume-conf.properties at the end of this mail.**** >> >> Any idea how to tune write-timeout value. **** >> >> ** ** >> >> ** ** >> >> 2013-04-05 13:17:33,197 ERROR org.apache.flume.SinkRunner: Unable to >> deliver event. Exception follows.**** >> >> org.apache.flume.ChannelException: Failed to obtain lock for writing to >> the log. Try increasing the log write timeout value. [channel=fc]**** >> >> at >> org.apache.flume.channel.file.FileChannel$FileBackedTransaction.doTake(FileChannel.java:434) >> **** >> >> at >> org.apache.flume.channel.BasicTransactionSemantics.take(BasicTransactionSemantics.java:113) >> **** >> >> at >> org.apache.flume.channel.BasicChannelSemantics.take(BasicChannelSemantics.java:91) >> **** >> >> at >> org.apache.flume.sink.hbase.HBaseSink.process(HBaseSink.java:189)**** >> >> at >> org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68) >> **** >> >> at >> org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)**** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> 2013-04-05 13:17:33,427 INFO >> org.apache.flume.channel.file.EventQueueBackingStoreFile: Updating >> checkpoint metadata: logWriteOrderID: 1365169979081, queueSize: 0, >> queueHead: 362421**** >> >> 2013-04-05 13:17:34,233 INFO org.apache.flume.channel.file.LogFileV3: >> Updating log-14.meta currentPosition = 3818784, logWriteOrderID = >> 1365169979081**** >> >> 2013-04-05 13:17:34,294 INFO org.apache.flume.channel.file.Log: Updated >> checkpoint for file: /opt/sponge/flume/file-channel/dataDirs/log-14 >> position: 3818784 logWriteOrderID: 1365169979081**** >> >> 2013-04-05 13:17:34,294 DEBUG org.apache.flume.channel.file.Log: Rolling >> back 1365169950299**** >> >> 2013-04-05 13:17:34,296 ERROR org.apache.flume.source.AvroSource: Avro >> source S1: Unable to process event batch. Exception follows.**** >> >> org.apache.flume.ChannelException: Unable to put batch on required >> channel: FileChannel fc { dataDirs: >> [/opt/sponge/flume/file-channel/dataDirs] }**** >> >> at >> org.apache.flume.channel.ChannelProcessor.processEventBatch(ChannelProcessor.java:200) >> **** >> >> at >> org.apache.flume.source.AvroSource.appendBatch(AvroSource.java:237)**** >> >> at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown >> Source)**** >> >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> **** >> >> at java.lang.reflect.Method.invoke(Method.java:597)**** >> >> 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$NettyServerAvroHandler.messageReceived(NettyServer.java:188) >> **** >> >> at >> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80) >> **** >> >> at >> org.apache.avro.ipc.NettyServer$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:783) >> **** >> >> at >> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)** >> ** >> >> at >> org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:321) >> **** >> >> at >> org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:299) >> **** >> >> at >> org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:216) >> **** >> >> at >> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80) >> **** >> >> 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:274)** >> ** >> >> at >> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)** >> ** >> >> at >> org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:351)**** >> >> at >> org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:282) >> **** >> >> at >> org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:202)**** >> >> at >> org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) >> **** >> >> at >> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44) >> **** >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) >> **** >> >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) >> **** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> Caused by: org.apache.flume.ChannelException: Failed to obtain lock for >> writing to the log. Try increasing the log write timeout value. [channel=fc] >> **** >> >> at >> org.apache.flume.channel.file.FileChannel$FileBackedTransaction.doPut(FileChannel.java:400) >> **** >> >> 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:189) >> **** >> >> ... 28 more**** >> >> 2013-04-05 13:17:34,296 DEBUG org.apache.flume.channel.file.Log: Files >> currently in use: [14]**** >> >> 2013-04-05 13:17:34,305 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x498b5a73, /10.42.202.131:42784 :> /10.96.172.44:1442] DISCONNECTED**** >> >> 2013-04-05 13:17:34,305 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x498b5a73, /10.42.202.131:42784 :> /10.96.172.44:1442] UNBOUND**** >> >> 2013-04-05 13:17:34,305 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x498b5a73, /10.42.202.131:42784 :> /10.96.172.44:1442] CLOSED**** >> >> 2013-04-05 13:17:34,305 INFO org.apache.avro.ipc.NettyServer: Connection >> to /10.42.202.131:42784 disconnected.**** >> >> 2013-04-05 13:17:38,200 ERROR org.apache.flume.SinkRunner: Unable to >> deliver event. Exception follows.**** >> >> java.lang.IllegalStateException: begin() called when transaction is OPEN! >> **** >> >> at >> com.google.common.base.Preconditions.checkState(Preconditions.java:145)** >> ** >> >> at >> org.apache.flume.channel.BasicTransactionSemantics.begin(BasicTransactionSemantics.java:131) >> **** >> >> at >> org.apache.flume.sink.hbase.HBaseSink.process(HBaseSink.java:187)**** >> >> at >> org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68) >> **** >> >> at >> org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)**** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> 2013-04-05 13:17:39,318 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x4e48f32a, /10.42.202.131:44085 => /10.96.172.44:1442] OPEN**** >> >> 2013-04-05 13:17:43,202 ERROR org.apache.flume.SinkRunner: Unable to >> deliver event. Exception follows.**** >> >> java.lang.IllegalStateException: begin() called when transaction is OPEN! >> **** >> >> at >> com.google.common.base.Preconditions.checkState(Preconditions.java:145)** >> ** >> >> at >> org.apache.flume.channel.BasicTransactionSemantics.begin(BasicTransactionSemantics.java:131) >> **** >> >> at >> org.apache.flume.sink.hbase.HBaseSink.process(HBaseSink.java:187)**** >> >> at >> org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68) >> **** >> >> at >> org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)**** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> 2013-04-05 13:17:45,853 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x4e48f32a, /10.42.202.131:44085 => /10.96.172.44:1442] BOUND: / >> 10.96.172.44:1442**** >> >> 2013-04-05 13:17:45,853 INFO org.apache.avro.ipc.NettyServer: [id: >> 0x4e48f32a, /10.42.202.131:44085 => /10.96.172.44:1442] CONNECTED: / >> 10.42.202.131:44085**** >> >> 2013-04-05 13:17:45,854 DEBUG org.apache.flume.source.AvroSource: Avro >> source S1: Received avro event batch of 39 events.**** >> >> 2013-04-05 13:17:45,958 DEBUG org.apache.flume.source.AvroSource: Avro >> source S1: Received avro event batch of 1 events.**** >> >> 2013-04-05 13:17:48,499 DEBUG org.apache.zookeeper.ClientCnxn: Got ping >> response for sessionid: 0x53dca4664900059 after 0ms**** >> >> 2013-04-05 13:17:50,854 ERROR org.apache.flume.SinkRunner: Unable to >> deliver event. Exception follows.**** >> >> java.lang.IllegalStateException: begin() called when transaction is OPEN! >> **** >> >> at >> com.google.common.base.Preconditions.checkState(Preconditions.java:145)** >> ** >> >> at >> org.apache.flume.channel.BasicTransactionSemantics.begin(BasicTransactionSemantics.java:131) >> **** >> >> at >> org.apache.flume.sink.hbase.HBaseSink.process(HBaseSink.java:187)**** >> >> at >> org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68) >> **** >> >> at >> org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)**** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> 2013-04-05 13:17:55,856 ERROR org.apache.flume.SinkRunner: Unable to >> deliver event. Exception follows.**** >> >> java.lang.IllegalStateException: begin() called when transaction is OPEN! >> **** >> >> at >> com.google.common.base.Preconditions.checkState(Preconditions.java:145)** >> ** >> >> at >> org.apache.flume.channel.BasicTransactionSemantics.begin(BasicTransactionSemantics.java:131) >> **** >> >> at >> org.apache.flume.sink.hbase.HBaseSink.process(HBaseSink.java:187)**** >> >> at >> org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68) >> **** >> >> at >> org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)**** >> >> at java.lang.Thread.run(Thread.java:662)**** >> >> ** ** >> >> ** ** >> >> ** ** >> >> ==================================================================**** >> >> col1.sources = S1**** >> >> col1.channels = fc**** >> >> col1.sinks = hBaseSink1**** >> >> ** ** >> >> ** ** >> >> col1.sources.S1.type = avro**** >> >> col1.sources.S1.bind=vm-15c2-3bbf**** >> >> col1.sources.S1.port=1442**** >> >> col1.sources.S1.channels = fc**** >> >> ** ** >> >> ** ** >> >> # Each sink's type must be defined**** >> >> col1.sinks.hBaseSink1.type = org.apache.flume.sink.hbase.HBaseSink**** >> >> col1.sinks.hBaseSink1.table=elf_log**** >> >> col1.sinks.hBaseSink1.columnFamily=content**** >> >> >> col1.sinks.hBaseSink1.serializer=com.citi.sponge.flume.collector.sink.LogHbaseEventSerializer >> **** >> >> col1.sinks.hBaseSink1.timeout=120**** >> >> col1.sinks.hBaseSink1.batchSize=20**** >> >> ** ** >> >> ** ** >> >> #Specify the channel the sink should use**** >> >> col1.sinks.hBaseSink1.channel = fc**** >> >> ** ** >> >> ** ** >> >> # Each channel's type is defined.**** >> >> col1.channels.fc.type = file**** >> >> col1.channels.fc.checkpointDir = /opt/sponge/flume/file-channel/checkpoint >> **** >> >> col1.channels.fc.dataDirs = /opt/sponge/flume/file-channel/dataDirs**** >> >> col1.channels.fc.transactionCapacity = 1000**** >> >> col1.channels.fc.checkpointInterval = 30000**** >> >> col1.channels.fc.maxFileSize = 2146435071**** >> >> col1.channels.fc.minimumRequiredSpace = 524288000**** >> >> col1.channels.fc.keep-alive = 5**** >> >> col1.channels.fc.write-timeout = 10**** >> >> col1.channels.fc.checkpoint-timeout = 600**** >> >> >> >> Thanks >> Madhu >> > > > > -- > Apache MRUnit - Unit testing MapReduce - http://mrunit.apache.org > > -- Apache MRUnit - Unit testing MapReduce - http://mrunit.apache.org
