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Posted to dev@kafka.apache.org by "yazgoo (Jira)" <ji...@apache.org> on 2020/07/29 14:30:00 UTC

[jira] [Created] (KAFKA-10323) NullPointerException during rebalance

yazgoo created KAFKA-10323:
------------------------------

             Summary: NullPointerException during rebalance
                 Key: KAFKA-10323
                 URL: https://issues.apache.org/jira/browse/KAFKA-10323
             Project: Kafka
          Issue Type: Bug
          Components: KafkaConnect
    Affects Versions: 2.5.0
            Reporter: yazgoo


*confluent platform version: 5.5.0-ccs*

connector used: s3

Connector stops after rebalancing:

ERROR [Worker clientId=connect-1, groupId=connect] Couldn't instantiate task <my task> because it has an invalid task configuration. This task will not execute until reconfigured.

java.lang.NullPointerException
 at org.apache.kafka.connect.runtime.Worker.startTask(Worker.java:427)
 at org.apache.kafka.connect.runtime.distributed.DistributedHerder.startTask(DistributedHerder.java:1147)
 at org.apache.kafka.connect.runtime.distributed.DistributedHerder.access$1600(DistributedHerder.java:126)
 at org.apache.kafka.connect.runtime.distributed.DistributedHerder$12.call(DistributedHerder.java:1162)
 at org.apache.kafka.connect.runtime.distributed.DistributedHerder$12.call(DistributedHerder.java:1158)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)



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