Using 0.8 head I have a 2-node broker cluster, One of which I had to restart as it was down while the producers are pushing data into kafka broker for 2 topics.
When the 2nd broker came up, I get exception in the broker below. The 2nd topic consumer is not getting any data. Why does not the leader recover when I restart the 2nd broker ? Stack Trace: .KafkaApis) kafka.common.LeaderNotAvailableException: Leader not available for partition [xxzztopic2,0] at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:468) at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:456) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61) at scala.collection.immutable.List.foreach(List.scala:45) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.List.map(List.scala:45) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:456) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:452) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.foreach(Set.scala:101) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.map(Set.scala:87) at kafka.server.KafkaApis.handleTopicMetadataRequest(KafkaApis.scala:452) at kafka.server.KafkaApis.handle(KafkaApis.scala:69) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:42) at java.lang.Thread.run(Thread.java:724) [2013-11-07 07:34:21,868] INFO Closing socket connection to /10.4.241.254. (kafka.network.Processor) [2013-11-07 07:34:22,073] ERROR [KafkaApi-2] Error while fetching metadata for partition [xxzztopic1,0] (kafka.server.KafkaApis) kafka.common.LeaderNotAvailableException: Leader not available for partition [xxzztopic1,0] at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:468) at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:456) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61) at scala.collection.immutable.List.foreach(List.scala:45) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.List.map(List.scala:45) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:456) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:452) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.foreach(Set.scala:101) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.map(Set.scala:87) at kafka.server.KafkaApis.handleTopicMetadataRequest(KafkaApis.scala:452) at kafka.server.KafkaApis.handle(KafkaApis.scala:69) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:42) at java.lang.Thread.run(Thread.java:724) [2013-11-07 07:34:22,073] ERROR [KafkaApi-2] Error while fetching metadata for partition [xxzztopic2,0] (kafka.server.KafkaApis) kafka.common.LeaderNotAvailableException: Leader not available for partition [xxzztopic2,0] at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:468) at kafka.server.KafkaApis$$anonfun$17$$anonfun$20.apply(KafkaApis.scala:456) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61) at scala.collection.immutable.List.foreach(List.scala:45) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.List.map(List.scala:45) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:456) at kafka.server.KafkaApis$$anonfun$17.apply(KafkaApis.scala:452) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.foreach(Set.scala:101) at scala.collection.TraversableLike$class.map(TraversableLike.scala:206) at scala.collection.immutable.Set$Set2.map(Set.scala:87) at kafka.server.KafkaApis.handleTopicMetadataRequest(KafkaApis.scala:452) at kafka.server.KafkaApis.handle(KafkaApis.scala:69) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:42) at java.lang.Thread.run(Thread.java:724) -- Kind Regards, Shafaq