Description
Looks like the new producer, when used with Snappy, following a broker restart is sending messages the brokers can't decompress. This issue was discussed at few mailing lists thread, but I don't think we ever resolved it.
I can reproduce with trunk and Snappy 1.1.1.7.
To reproduce:
1. Start 3 brokers
2. Create a topic with 3 partitions and 3 replicas each.
2. Start performance producer with --new-producer --compression-codec 2 (and set the number of messages to fairly high, to give you time. I went with 10M)
3. Bounce one of the brokers
4. The log of one of the surviving nodes should contain errors like:
2015-07-02 13:45:59,300 ERROR kafka.server.ReplicaManager: [Replica Manager on Broker 66]: Error processing append operation on partition [t3,0] kafka.common.KafkaException: at kafka.message.ByteBufferMessageSet$$anon$1.makeNext(ByteBufferMessageSet.scala:94) at kafka.message.ByteBufferMessageSet$$anon$1.makeNext(ByteBufferMessageSet.scala:64) at kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:66) at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:58) at kafka.message.ByteBufferMessageSet$$anon$2.innerDone(ByteBufferMessageSet.scala:177) at kafka.message.ByteBufferMessageSet$$anon$2.makeNext(ByteBufferMessageSet.scala:218) at kafka.message.ByteBufferMessageSet$$anon$2.makeNext(ByteBufferMessageSet.scala:173) at kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:66) at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:58) at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48) at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103) at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:47) at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273) at scala.collection.AbstractIterator.to(Iterator.scala:1157) at scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:265) at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1157) at kafka.message.ByteBufferMessageSet.validateMessagesAndAssignOffsets(ByteBufferMessageSet.scala:267) at kafka.log.Log.liftedTree1$1(Log.scala:327) at kafka.log.Log.append(Log.scala:326) at kafka.cluster.Partition$$anonfun$appendMessagesToLeader$1.apply(Partition.scala:423) at kafka.cluster.Partition$$anonfun$appendMessagesToLeader$1.apply(Partition.scala:409) at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:262) at kafka.utils.CoreUtils$.inReadLock(CoreUtils.scala:268) at kafka.cluster.Partition.appendMessagesToLeader(Partition.scala:409) at kafka.server.ReplicaManager$$anonfun$appendToLocalLog$2.apply(ReplicaManager.scala:365) at kafka.server.ReplicaManager$$anonfun$appendToLocalLog$2.apply(ReplicaManager.scala:350) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98) at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:226) at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39) at scala.collection.mutable.HashMap.foreach(HashMap.scala:98) at scala.collection.TraversableLike$class.map(TraversableLike.scala:244) at scala.collection.AbstractTraversable.map(Traversable.scala:105) at kafka.server.ReplicaManager.appendToLocalLog(ReplicaManager.scala:350) at kafka.server.ReplicaManager.appendMessages(ReplicaManager.scala:286) at kafka.server.KafkaApis.handleProducerRequest(KafkaApis.scala:270) at kafka.server.KafkaApis.handle(KafkaApis.scala:57) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: PARSING_ERROR(2) at org.xerial.snappy.SnappyNative.throw_error(SnappyNative.java:84) at org.xerial.snappy.SnappyNative.uncompressedLength(Native Method) at org.xerial.snappy.Snappy.uncompressedLength(Snappy.java:594) at org.xerial.snappy.SnappyInputStream.hasNextChunk(SnappyInputStream.java:358) at org.xerial.snappy.SnappyInputStream.rawRead(SnappyInputStream.java:167) at org.xerial.snappy.SnappyInputStream.read(SnappyInputStream.java:150) at java.io.DataInputStream.readFully(DataInputStream.java:195) at kafka.message.ByteBufferMessageSet$$anon$1.makeNext(ByteBufferMessageSet.scala:82) ... 43 more
The client has the following messages:
[2015-07-02 13:46:00,478] ERROR Error when sending message to topic t3 with key: 4 bytes, value: 100 bytes with error: The server experienced an unexpected error when processing the request (org.apache.kafka.clients.producer.internals.ErrorLoggingCallback) java: target/snappy-1.1.1/snappy.cc:423: char* snappy::internal::CompressFragment(const char*, size_t, char*, snappy::uint16*, int): Assertion `0 == memcmp(base, candidate, matched)' failed.