[jira] [Created] (STORM-3046) Getting a NPE leading worker to die when starting a topology.

["Kush Khandelwal (JIRA)" <ji...@apache.org>]

Kush Khandelwal created STORM-3046:
--------------------------------------

             Summary: Getting a NPE leading worker to die when starting a topology.
                 Key: STORM-3046
                 URL: https://issues.apache.org/jira/browse/STORM-3046
             Project: Apache Storm
          Issue Type: Bug
          Components: rm-kafka-client, trident
    Affects Versions: 1.2.1
            Reporter: Kush Khandelwal
         Attachments: TestTopology.java

I am using storm-core and storm-kafka-client version 1.2.1 and kafka clients version 1.1.0.

We have an external kafka from where we get the messages.
Whenever I try to run the topology, I get a NPE, which leads to the worker getting died.
Can someone please help me fix the issue?

Thanks.

 

Error - 

10665 [Thread-58-spout-handle-rule-local-kafka-spout-executor[26 26]] ERROR o.a.s.util - Async loop died!
java.lang.RuntimeException: java.lang.NullPointerException
 at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:522) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:487) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:74) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.daemon.executor$fn__5043$fn__5056$fn__5109.invoke(executor.clj:861) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.util$async_loop$fn__557.invoke(util.clj:484) [storm-core-1.2.1.jar:1.2.1]
 at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
Caused by: java.lang.NullPointerException
 at org.apache.storm.kafka.spout.trident.KafkaTridentSpoutEmitter.seek(KafkaTridentSpoutEmitter.java:193) ~[storm-kafka-client-1.2.1.jar:1.2.1]
 at org.apache.storm.kafka.spout.trident.KafkaTridentSpoutEmitter.emitPartitionBatch(KafkaTridentSpoutEmitter.java:127) ~[storm-kafka-client-1.2.1.jar:1.2.1]
 at org.apache.storm.kafka.spout.trident.KafkaTridentSpoutEmitter.emitPartitionBatch(KafkaTridentSpoutEmitter.java:51) ~[storm-kafka-client-1.2.1.jar:1.2.1]
 at org.apache.storm.trident.spout.OpaquePartitionedTridentSpoutExecutor$Emitter.emitBatch(OpaquePartitionedTridentSpoutExecutor.java:141) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.trident.spout.TridentSpoutExecutor.execute(TridentSpoutExecutor.java:82) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.trident.topology.TridentBoltExecutor.execute(TridentBoltExecutor.java:383) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.daemon.executor$fn__5043$tuple_action_fn__5045.invoke(executor.clj:739) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.daemon.executor$mk_task_receiver$fn__4964.invoke(executor.clj:468) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.disruptor$clojure_handler$reify__4475.onEvent(disruptor.clj:41) ~[storm-core-1.2.1.jar:1.2.1]
 at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:509) ~[storm-core-1.2.1.jar:1.2.1]
 ... 6 more

 

 

Topology class - 

 

 

 

import org.apache.storm.Config;
import org.apache.storm.LocalCluster;
import org.apache.storm.StormSubmitter;
import org.apache.storm.generated.*;
import org.apache.storm.kafka.spout.KafkaSpoutConfig;
import org.apache.storm.kafka.spout.trident.KafkaTridentSpoutOpaque;
import org.apache.storm.trident.Stream;
import org.apache.storm.trident.TridentState;
import org.apache.storm.trident.TridentTopology;
import org.apache.storm.tuple.Fields;

import java.util.Properties;

 


public class TestTopology {

 

private static StormTopology buildTopology(Properties stormProperties) {
 Properties kafkaProperties = getProperties("/kafka.properties");
 TridentTopology topology = new TridentTopology();

Fields stageArguments = new Fields("test", "issue");

KafkaSpoutConfig<String, String> kafkaSpoutConfig = KafkaSpoutConfig.builder(kafkaProperties.getProperty("bootstrap.servers"), "test")
 .setFirstPollOffsetStrategy(KafkaSpoutConfig.FirstPollOffsetStrategy.LATEST)
 .setProcessingGuarantee(KafkaSpoutConfig.ProcessingGuarantee.AT_MOST_ONCE)
 .setRecordTranslator(new RecordTranslator(), stageArguments)
 .build();

// If I set poll strategy to earliest and the topic already contains some messages, it works fine.
 // I have used a custom record translator which is working fine.

KafkaTridentSpoutOpaque kafkaTridentSpoutOpaque = new KafkaTridentSpoutOpaque(kafkaSpoutConfig);

Grouping partitionGroup = getPartitionGroup("test");

log.info("Creating Opaque-Trident-Kafka-Spout");

final Stream kafkaSpout = topology.newStream(stormProperties.getProperty("SPOUT_NAME"), kafkaTridentSpoutOpaque).name("kafkaSpout").parallelismHint(1);
 TridentState testUpdate = kafkaSpout.partition(partitionGroup).name("testUpdate").partitionPersist(new MainMemoryStateFactory(), stageArguments, new MainMemoryStateUpdater(), stageArguments).parallelismHint(1);
 Stream viewUpdate = ruleUpdate.newValuesStream().name("viewUpdate").partition(partitionGroup).each(stageArguments, new UpdateView(), new Fields()).parallelismHint(2);

return topology.build();
 }

public static void main(String[] args) {
 Config conf = new Config();
 log.info("Topology config: " + conf);
 Properties properties = getProperties("/storm-cluster.properties");

conf.setMessageTimeoutSecs(600);

log.info("Building Topology");
 StormTopology topology = buildTopology(properties);
 log.info(topology.toString());

log.info("Submitting handle-rule Topology");
 try {
 LocalCluster cluster = new LocalCluster();
 cluster.submitTopology("handle-rule", conf, topology);
 } catch (Exception e) {
 e.printStackTrace();
 }
 }


}



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