UnsatisfiedLinkError When sending compressed (snappy) message to kafka - apache-kafka

Question

In my java web app I'm sending messages to kafka.
I would like to compress my messages before sending it so I'm setting in my producer properties:
props.put("compression.codec", "2");
As I understand "2" stands for snappy, but when sending a message I'm getting:
java.lang.UnsatisfiedLinkError: org.xerial.snappy.SnappyNative.maxCompressedLength(I)I
at org.xerial.snappy.SnappyNative.maxCompressedLength(Native Method)
at org.xerial.snappy.Snappy.maxCompressedLength(Snappy.java:316)
at org.xerial.snappy.SnappyOutputStream.<init>(SnappyOutputStream.java:79)
at org.xerial.snappy.SnappyOutputStream.<init>(SnappyOutputStream.java:66)
at kafka.message.SnappyCompression.<init>(CompressionUtils.scala:61)
at kafka.message.CompressionFactory$.apply(CompressionUtils.scala:82)
at kafka.message.CompressionUtils$.compress(CompressionUtils.scala:109)
at kafka.message.MessageSet$.createByteBuffer(MessageSet.scala:71)
at kafka.message.ByteBufferMessageSet.<init>(ByteBufferMessageSet.scala:44)
at kafka.producer.async.DefaultEventHandler$$anonfun$3.apply(DefaultEventHandler.scala:94)
at kafka.producer.async.DefaultEventHandler$$anonfun$3.apply(DefaultEventHandler.scala:82)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:233)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:233)
at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:95)
at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:95)
at scala.collection.Iterator$class.foreach(Iterator.scala:772)
at scala.collection.mutable.HashTable$$anon$1.foreach(HashTable.scala:157)
at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:190)
at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:45)
at scala.collection.mutable.HashMap.foreach(HashMap.scala:95)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:233)
at scala.collection.mutable.HashMap.map(HashMap.scala:45)
at kafka.producer.async.DefaultEventHandler.serialize(DefaultEventHandler.scala:82)
at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:44)
at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:116)
at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:95)
at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:71)
at scala.collection.immutable.Stream.foreach(Stream.scala:526)
at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:70)
at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:41)
To resolve it I tried adding snappy dependency to my pom:
<dependency>
<groupId>org.xerial.snappy</groupId>
<artifactId>snappy-java</artifactId>
<version>${snappy-version}</version>
<scope>provided</scope>
</dependency>
and add the jar to my jetty server under /lib/ext
but still getting this error.
If I set "0" instead of "2" in the "compression.codec" property I do not get the exception, as expected.
what should I do in order to be able to use snappy compression?
This is my snappy version (should I use a different one?):
1.1.0.1
I'm deploying my app on jetty 8.1.9 which runs on Ubuntu 12.10.

Answer 1

<dependency>
<groupId>org.xerial.snappy</groupId>
<artifactId>snappy-java</artifactId>
<version>1.1.1.3</version>
</dependency>
I had the same issue and the code above solves my problem. The jar contains native libraries for all OS. Below are my development environment:
JDK version: 1.7.0_76
Kafka version: 2.10-0.8.2.1
Zookeeper version: 3.4.6