[GitHub] liketic opened a new pull request #3310: Add a running flag for Kafka source connector

[GitBox <gi...@apache.org>]

liketic opened a new pull request #3310: Add a running flag for Kafka source connector
URL: https://github.com/apache/pulsar/pull/3310
 
 
   ### Motivation
   
   Currently, if we pass an invalid source configuration to instantiate ```KafkaConsumer``` we will get no log even there is an exception thrown. And after ```close()``` called, the background thread may still alive unless we caught an ```InterruptedException``` if ```kafkaSourceConfig.isAutoCommitEnabled()``` returns ```false```. So I would like to add a flag to indicate if the connector is stopped.
   
   ### Modifications
   
   Describe the modifications you've done.
   
   ### Result
   
   After your change, what will change.
   

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