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https://issues.apache.org/jira/browse/FLUME-2370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15112295#comment-15112295
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Shadocko commented on FLUME-2370:
---------------------------------
Hello, just to follow up on this issue: it can still happen in 2016, although
there's no clear path to reproduce the problem.
The issue started for me after testing many configurations (for performance
tuning purposes), so after quite a few configuration changes and restarts of
both Flume agents.
The workaround was to specify a compression level at both ends (Avro Sink AND
Source), even though It just used to work by setting the compression level only
at the sink side, until some indeterminate point in time that is.
> 'deflate' doesn't work in Flume avro sinc/source
> ------------------------------------------------
>
> Key: FLUME-2370
> URL: https://issues.apache.org/jira/browse/FLUME-2370
> Project: Flume
> Issue Type: Documentation
> Components: Docs
> Affects Versions: v1.4.0
> Reporter: Cesar Delgado
> Attachments: patch-2370.diff
>
>
> I was trying to setup a basic 2-tier Flume setup using the Avro source/sink
> to communicate between tiers. When I setup the system I used compression-type
> on the 1st tier's sink side like documented here
> (https://flume.apache.org/FlumeUserGuide.html#avro-sink)
> agent.sinks.snk1.compression-type = deflate
> And the same on the source side:
> agent.sources.src1.compression-type = deflate
> But I was getting this error:
> 08 Apr 2014 00:15:07,606 WARN pool-7-thread-1
> (org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.exceptionCaught:201)
> - Unexpected exception from downstream.
> org.jboss.netty.handler.codec.compression.CompressionException: decompression
> failure (-3): unknown compression method
> at
> org.jboss.netty.handler.codec.compression.ZlibUtil.exception(ZlibUtil.java:31)
> at org.jboss.netty.handler.codec.compression.ZlibUtil.fail(ZlibUtil.java:27)
> at
> org.jboss.netty.handler.codec.compression.ZlibDecoder.decode(ZlibDecoder.java:153)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:67)
> at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
> at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
> at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:364)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:238)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> After some digging I found if I changed 'deflate' for 'gzip' it works.
> agent.sinks.snk1.compression-type = gzip
> agent.sources.src1.compression-type = gzip
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