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Amir Shahsavand commented on KAFKA-10323: ----------------------------------------- Is there any workaround to get a task in this state back up and running if the restart attempt fails? > 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 > Assignee: Luke Chen > Priority: Major > > *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) -- This message was sent by Atlassian Jira (v8.3.4#803005)