[jira] [Updated] (STORM-2691) storm-kafka-client Trident spout implements the Trident interface incorrectly

["Stig Rohde Døssing (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-2691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stig Rohde Døssing updated STORM-2691:
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    Summary: storm-kafka-client Trident spout implements the Trident interface incorrectly  (was: storm-kafka-client Trident spout communicates with the Coordinator through a static field)

> storm-kafka-client Trident spout implements the Trident interface incorrectly
> -----------------------------------------------------------------------------
>
>                 Key: STORM-2691
>                 URL: https://issues.apache.org/jira/browse/STORM-2691
>             Project: Apache Storm
>          Issue Type: Bug
>          Components: storm-kafka-client
>    Affects Versions: 2.0.0, 1.1.1
>            Reporter: Stig Rohde Døssing
>            Assignee: Stig Rohde Døssing
>
> The Trident Kafka spout uses the KafkaTridentSpoutTopicPartitionRegistry enum to pass existing topic partitions from the spout to the coordinator. This only works when those components happen to be in the same JVM, because the coordinator gets the topic information from the KafkaConsumer started by KafkaTridentSpoutEmitter. 
> The coordinator runs in the TridentSpoutCoordinator bolt here https://github.com/apache/storm/blob/4c8a986f519cdf3e63bed47e9c4f723e4867267a/storm-client/src/jvm/org/apache/storm/trident/topology/TridentTopologyBuilder.java#L162, while the spout instances (emitters) run in TridentSpoutExecutors here https://github.com/apache/storm/blob/4c8a986f519cdf3e63bed47e9c4f723e4867267a/storm-client/src/jvm/org/apache/storm/trident/topology/TridentTopologyBuilder.java#L176.
> We should replace the registry enum with writes to Zookeeper or something similar.



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