Hi

My streaming application gets killed with below error

5/08/26 21:55:20 ERROR kafka.DirectKafkaInputDStream:
ArrayBuffer(kafka.common.NotLeaderForPartitionException,
kafka.common.NotLeaderForPartitionException,
kafka.common.NotLeaderForPartitionException,
kafka.common.NotLeaderForPartitionException,
kafka.common.NotLeaderForPartitionException,
org.apache.spark.SparkException: Couldn't find leader offsets for
Set([testtopic,223], [testtopic,205], [testtopic,64], [testtopic,100],
[testtopic,193]))
15/08/26 21:55:20 ERROR scheduler.JobScheduler: Error generating jobs for
time 1440626120000 ms
org.apache.spark.SparkException:
ArrayBuffer(kafka.common.NotLeaderForPartitionException,
org.apache.spark.SparkException: Couldn't find leader offsets for
Set([testtopic,115]))
at
org.apache.spark.streaming.kafka.DirectKafkaInputDStream.latestLeaderOffsets(DirectKafkaInputDStream.scala:94)
at
org.apache.spark.streaming.kafka.DirectKafkaInputDStream.compute(DirectKafkaInputDStream.scala:116)
at
org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1.apply(DStream.scala:300)
at
org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1$$anonfun$1.apply(DStream.scala:300)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at
org.apache.spark.streaming.dstream.DStream$$anonfun$getOrCompute$1.apply(DStream.scala:299)
at



Kafka params in job logs printed are :
 value.serializer = class
org.apache.kafka.common.serialization.StringSerializer
        key.serializer = class
org.apache.kafka.common.serialization.StringSerializer
        block.on.buffer.full = true
        retry.backoff.ms = 100
        buffer.memory = 1048576
        batch.size = 16384
        metrics.sample.window.ms = 30000
        metadata.max.age.ms = 300000
        receive.buffer.bytes = 32768
        timeout.ms = 30000
        max.in.flight.requests.per.connection = 5
        bootstrap.servers = [broker1:9092, broker2:9092, broker3:9092]
        metric.reporters = []
        client.id =
        compression.type = none
        retries = 0
        max.request.size = 1048576
        send.buffer.bytes = 131072
        acks = all
        reconnect.backoff.ms = 10
        linger.ms = 0
        metrics.num.samples = 2
        metadata.fetch.timeout.ms = 60000


Is it kafka broker getting down and job is getting killed ? Whats the best
way to handle it ?
Increasing retries and backoff time  wil help and to what values those
should be set to never have streaming application failure - rather it keep
on retrying after few seconds and send a event so that my custom code can
send notification of kafka broker down if its because of that.


Thanks

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