Seweryn Habdank-Wojewodzki created KAFKA-6457: -------------------------------------------------
Summary: Error: NOT_LEADER_FOR_PARTITION leads to NPE Key: KAFKA-6457 URL: https://issues.apache.org/jira/browse/KAFKA-6457 Project: Kafka Issue Type: Bug Components: streams Affects Versions: 1.0.0 Reporter: Seweryn Habdank-Wojewodzki One of our nodes was dead. Then the second one took 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? {code} 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:?] {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)