[KAFKA-6457] Error: NOT_LEADER_FOR_PARTITION leads to NPE - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Duplicate
Affects Version/s: 1.0.0
Fix Version/s: 1.0.1
Component/s: consumer
Labels:
None

Description

One of our nodes was dead. Then the second one tooks all responsibility.

But streamming aplication in the meanwhile crashed due to NPE caused by Error: NOT_LEADER_FOR_PARTITION.

The stack trace is below.

Is it something expected?

2018-01-17 11:47:21 [my] [WARN ] Sender:251 - [Producer ...2018-01-17 11:47:21 [my] [WARN ] Sender:251 - [Producer clientId=restreamer-my-fef07ca9-b067-45c0-a5af-68b5a1730dac-StreamThread-1-producer] Got error produce response with correlation id 768962 on topic-partition my_internal_topic-5, retrying (9 attempts left). Error: NOT_LEADER_FOR_PARTITION
2018-01-17 11:47:21 [my] [WARN ] Sender:251 - [Producer clientId=restreamer-my-fef07ca9-b067-45c0-a5af-68b5a1730dac-StreamThread-1-producer] Got error produce response with correlation id 768962 on topic-partition my_internal_topic-7, retrying (9 attempts left). Error: NOT_LEADER_FOR_PARTITION
2018-01-17 11:47:21 [my] [ERROR] AbstractCoordinator:296 - [Consumer clientId=restreamer-my-fef07ca9-b067-45c0-a5af-68b5a1730dac-StreamThread-1-consumer, groupId=restreamer-my] Heartbeat thread for group restreamer-my failed due to unexpected error
java.lang.NullPointerException: null
        at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:436) ~[my-restreamer.jar:?]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:395) ~[my-restreamer.jar:?]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:460) ~[my-restreamer.jar:?]
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:238) ~[my-restreamer.jar:?]
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.pollNoWakeup(ConsumerNetworkClient.java:275) ~[my-restreamer.jar:?]
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$HeartbeatThread.run(AbstractCoordinator.java:934) [my-restreamer.jar:?]