[ 
https://issues.apache.org/jira/browse/KAFKA-6260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Seweryn Habdank-Wojewodzki updated KAFKA-6260:
----------------------------------------------
    Description: 
The error reporting is not clear. But it seems that Kafka Heartbit shuts down 
application due to NULL exception caused by "fake" disconnections.

Can you check that?

{code}
2017-11-23 23:54:47 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Received successful Heartbeat response
2017-11-23 23:54:50 DEBUG AbstractCoordinator:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Sending Heartbeat request to coordinator 
cljp01.eb.lan.at:9093 (id: 2147483646 rack: null)
2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Sending HEARTBEAT 
{group_id=kafka-endpoint,generation_id=3834,member_id=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer-94f18be5-e49a-4817-9e5a-fe82a64e0b08}
 with correlation id 24 to node 2147483646
2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Completed receive from node 2147483646 for HEARTBEAT 
with correlation id 24, received {throttle_time_ms=0,error_code=0}
2017-11-23 23:54:50 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Received successful Heartbeat response
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Disconnecting from node 1 due to request timeout.
2017-11-23 23:54:52 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Cancelled request 
{replica_id=-1,max_wait_time=6000,min_bytes=1,max_bytes=52428800,isolation_level=0,topics=[{topic=clj_internal_topic,partitions=[{partition=6,fetch_offset=211558395,log_start_offset=-1,max_bytes=1048576},{partition=8,fetch_offset=210178209,log_start_offset=-1,max_bytes=1048576},{partition=0,fetch_offset=209353523,log_start_offset=-1,max_bytes=1048576},{partition=2,fetch_offset=209291462,log_start_offset=-1,max_bytes=1048576},{partition=4,fetch_offset=210728595,log_start_offset=-1,max_bytes=1048576}]}]}
 with correlation id 21 due to node 1 being disconnected
2017-11-23 23:54:52 DEBUG ConsumerNetworkClient:195 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Cancelled FETCH request RequestHeader(apiKey=FETCH, 
apiVersion=6, 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 correlationId=21) with correlation id 21 due to node 1 being disconnected
2017-11-23 23:54:52 DEBUG Fetcher:195 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Fetch request {clj_internal_topic-6=(offset=211558395, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-8=(offset=210178209, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-0=(offset=209353523, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-2=(offset=209291462, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-4=(offset=210728595, 
logStartOffset=-1, maxBytes=1048576)} to cljp01.eb.lan.at:9093 (id: 1 rack: 
DC-1) failed org.apache.kafka.common.errors.DisconnectException: null
2017-11-23 23:54:52 TRACE NetworkClient:123 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Found least loaded node cljp01.eb.lan.at:9093 (id: 1 
rack: DC-1)
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Initialize connection to node cljp01.eb.lan.at:9093 
(id: 1 rack: DC-1) for sending metadata request
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Initiating connection to node cljp01.eb.lan.at:9093 
(id: 1 rack: DC-1)
2017-11-23 23:54:52 ERROR AbstractCoordinator:296 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Heartbeat thread for group kafka-endpoint failed due 
to unexpected error
java.lang.NullPointerException: null
        at 
org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:436) 
~[my-kafka-endpoint.jar:?]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:395) 
~[my-kafka-endpoint.jar:?]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:460) 
~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:238)
 ~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.pollNoWakeup(ConsumerNetworkClient.java:275)
 ~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.AbstractCoordinator$HeartbeatThread.run(AbstractCoordinator.java:934)
 [my-kafka-endpoint.jar:?]
2017-11-23 23:54:52 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Heartbeat thread has closed
2017-11-23 23:55:16 INFO  KafkaElasticsearchEndpoint:61 - Got shutdown requests 
...
2017-11-23 23:55:16 INFO  StreamProcessor:106 - Streams closing ...
2017-11-23 23:55:16 INFO  StreamProcessor:111 - with 5 [s] timeout
2017-11-23 23:55:16 DEBUG KafkaStreams:183 - stream-client 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]Stopping Streams client 
with timeoutMillis = 5000 ms.
2017-11-23 23:55:16 INFO  KafkaStreams:346 - stream-client 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]State transition from 
RUNNING to PENDING_SHUTDOWN
2017-11-23 23:55:16 INFO  StreamThread:336 - stream-thread 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] Informed 
to shut down
2017-11-23 23:55:16 INFO  StreamThread:346 - stream-thread 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] State 
transition from RUNNING to PENDING_SHUTDOWN
{code}

  was:
The new KafkaStreams API (v. 1.0.0), which uses StreamsBuilder class has 
troubles to connect with Broker v. 0.11.0.1. 
Below there are logs.
The same app wich uses old API (v. 0.11.0.1) KStreamBuilder has no issues to 
connect with Broker 0.11.0.1.



Can you check that?

{code}
2017-11-23 23:54:47 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Received successful Heartbeat response
2017-11-23 23:54:50 DEBUG AbstractCoordinator:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Sending Heartbeat request to coordinator 
cljp01.eb.lan.at:9093 (id: 2147483646 rack: null)
2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Sending HEARTBEAT 
{group_id=kafka-endpoint,generation_id=3834,member_id=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer-94f18be5-e49a-4817-9e5a-fe82a64e0b08}
 with correlation id 24 to node 2147483646
2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Completed receive from node 2147483646 for HEARTBEAT 
with correlation id 24, received {throttle_time_ms=0,error_code=0}
2017-11-23 23:54:50 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Received successful Heartbeat response
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Disconnecting from node 1 due to request timeout.
2017-11-23 23:54:52 TRACE NetworkClient:135 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Cancelled request 
{replica_id=-1,max_wait_time=6000,min_bytes=1,max_bytes=52428800,isolation_level=0,topics=[{topic=clj_internal_topic,partitions=[{partition=6,fetch_offset=211558395,log_start_offset=-1,max_bytes=1048576},{partition=8,fetch_offset=210178209,log_start_offset=-1,max_bytes=1048576},{partition=0,fetch_offset=209353523,log_start_offset=-1,max_bytes=1048576},{partition=2,fetch_offset=209291462,log_start_offset=-1,max_bytes=1048576},{partition=4,fetch_offset=210728595,log_start_offset=-1,max_bytes=1048576}]}]}
 with correlation id 21 due to node 1 being disconnected
2017-11-23 23:54:52 DEBUG ConsumerNetworkClient:195 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Cancelled FETCH request RequestHeader(apiKey=FETCH, 
apiVersion=6, 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 correlationId=21) with correlation id 21 due to node 1 being disconnected
2017-11-23 23:54:52 DEBUG Fetcher:195 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Fetch request {clj_internal_topic-6=(offset=211558395, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-8=(offset=210178209, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-0=(offset=209353523, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-2=(offset=209291462, 
logStartOffset=-1, maxBytes=1048576), clj_internal_topic-4=(offset=210728595, 
logStartOffset=-1, maxBytes=1048576)} to cljp01.eb.lan.at:9093 (id: 1 rack: 
DC-1) failed org.apache.kafka.common.errors.DisconnectException: null
2017-11-23 23:54:52 TRACE NetworkClient:123 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Found least loaded node cljp01.eb.lan.at:9093 (id: 1 
rack: DC-1)
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Initialize connection to node cljp01.eb.lan.at:9093 
(id: 1 rack: DC-1) for sending metadata request
2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Initiating connection to node cljp01.eb.lan.at:9093 
(id: 1 rack: DC-1)
2017-11-23 23:54:52 ERROR AbstractCoordinator:296 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Heartbeat thread for group kafka-endpoint failed due 
to unexpected error
java.lang.NullPointerException: null
        at 
org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:436) 
~[my-kafka-endpoint.jar:?]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:395) 
~[my-kafka-endpoint.jar:?]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:460) 
~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:238)
 ~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.pollNoWakeup(ConsumerNetworkClient.java:275)
 ~[my-kafka-endpoint.jar:?]
        at 
org.apache.kafka.clients.consumer.internals.AbstractCoordinator$HeartbeatThread.run(AbstractCoordinator.java:934)
 [my-kafka-endpoint.jar:?]
2017-11-23 23:54:52 DEBUG AbstractCoordinator:177 - [Consumer 
clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
 groupId=kafka-endpoint] Heartbeat thread has closed
2017-11-23 23:55:16 INFO  KafkaElasticsearchEndpoint:61 - Got shutdown requests 
...
2017-11-23 23:55:16 INFO  StreamProcessor:106 - Streams closing ...
2017-11-23 23:55:16 INFO  StreamProcessor:111 - with 5 [s] timeout
2017-11-23 23:55:16 DEBUG KafkaStreams:183 - stream-client 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]Stopping Streams client 
with timeoutMillis = 5000 ms.
2017-11-23 23:55:16 INFO  KafkaStreams:346 - stream-client 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]State transition from 
RUNNING to PENDING_SHUTDOWN
2017-11-23 23:55:16 INFO  StreamThread:336 - stream-thread 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] Informed 
to shut down
2017-11-23 23:55:16 INFO  StreamThread:346 - stream-thread 
[kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] State 
transition from RUNNING to PENDING_SHUTDOWN
{code}


> KafkaStream 1.0.0 not clearly handles NULL Exception
> ----------------------------------------------------
>
>                 Key: KAFKA-6260
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6260
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Seweryn Habdank-Wojewodzki
>
> The error reporting is not clear. But it seems that Kafka Heartbit shuts down 
> application due to NULL exception caused by "fake" disconnections.
> Can you check that?
> {code}
> 2017-11-23 23:54:47 DEBUG AbstractCoordinator:177 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Received successful Heartbeat response
> 2017-11-23 23:54:50 DEBUG AbstractCoordinator:183 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Sending Heartbeat request to coordinator 
> cljp01.eb.lan.at:9093 (id: 2147483646 rack: null)
> 2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Sending HEARTBEAT 
> {group_id=kafka-endpoint,generation_id=3834,member_id=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer-94f18be5-e49a-4817-9e5a-fe82a64e0b08}
>  with correlation id 24 to node 2147483646
> 2017-11-23 23:54:50 TRACE NetworkClient:135 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Completed receive from node 2147483646 for HEARTBEAT 
> with correlation id 24, received {throttle_time_ms=0,error_code=0}
> 2017-11-23 23:54:50 DEBUG AbstractCoordinator:177 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Received successful Heartbeat response
> 2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Disconnecting from node 1 due to request timeout.
> 2017-11-23 23:54:52 TRACE NetworkClient:135 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Cancelled request 
> {replica_id=-1,max_wait_time=6000,min_bytes=1,max_bytes=52428800,isolation_level=0,topics=[{topic=clj_internal_topic,partitions=[{partition=6,fetch_offset=211558395,log_start_offset=-1,max_bytes=1048576},{partition=8,fetch_offset=210178209,log_start_offset=-1,max_bytes=1048576},{partition=0,fetch_offset=209353523,log_start_offset=-1,max_bytes=1048576},{partition=2,fetch_offset=209291462,log_start_offset=-1,max_bytes=1048576},{partition=4,fetch_offset=210728595,log_start_offset=-1,max_bytes=1048576}]}]}
>  with correlation id 21 due to node 1 being disconnected
> 2017-11-23 23:54:52 DEBUG ConsumerNetworkClient:195 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Cancelled FETCH request RequestHeader(apiKey=FETCH, 
> apiVersion=6, 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  correlationId=21) with correlation id 21 due to node 1 being disconnected
> 2017-11-23 23:54:52 DEBUG Fetcher:195 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Fetch request 
> {clj_internal_topic-6=(offset=211558395, logStartOffset=-1, 
> maxBytes=1048576), clj_internal_topic-8=(offset=210178209, logStartOffset=-1, 
> maxBytes=1048576), clj_internal_topic-0=(offset=209353523, logStartOffset=-1, 
> maxBytes=1048576), clj_internal_topic-2=(offset=209291462, logStartOffset=-1, 
> maxBytes=1048576), clj_internal_topic-4=(offset=210728595, logStartOffset=-1, 
> maxBytes=1048576)} to cljp01.eb.lan.at:9093 (id: 1 rack: DC-1) failed 
> org.apache.kafka.common.errors.DisconnectException: null
> 2017-11-23 23:54:52 TRACE NetworkClient:123 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Found least loaded node cljp01.eb.lan.at:9093 (id: 1 
> rack: DC-1)
> 2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Initialize connection to node cljp01.eb.lan.at:9093 
> (id: 1 rack: DC-1) for sending metadata request
> 2017-11-23 23:54:52 DEBUG NetworkClient:183 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Initiating connection to node cljp01.eb.lan.at:9093 
> (id: 1 rack: DC-1)
> 2017-11-23 23:54:52 ERROR AbstractCoordinator:296 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Heartbeat thread for group kafka-endpoint failed due 
> to unexpected error
> java.lang.NullPointerException: null
>         at 
> org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:436) 
> ~[my-kafka-endpoint.jar:?]
>         at org.apache.kafka.common.network.Selector.poll(Selector.java:395) 
> ~[my-kafka-endpoint.jar:?]
>         at 
> org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:460) 
> ~[my-kafka-endpoint.jar:?]
>         at 
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:238)
>  ~[my-kafka-endpoint.jar:?]
>         at 
> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.pollNoWakeup(ConsumerNetworkClient.java:275)
>  ~[my-kafka-endpoint.jar:?]
>         at 
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator$HeartbeatThread.run(AbstractCoordinator.java:934)
>  [my-kafka-endpoint.jar:?]
> 2017-11-23 23:54:52 DEBUG AbstractCoordinator:177 - [Consumer 
> clientId=kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1-consumer,
>  groupId=kafka-endpoint] Heartbeat thread has closed
> 2017-11-23 23:55:16 INFO  KafkaElasticsearchEndpoint:61 - Got shutdown 
> requests ...
> 2017-11-23 23:55:16 INFO  StreamProcessor:106 - Streams closing ...
> 2017-11-23 23:55:16 INFO  StreamProcessor:111 - with 5 [s] timeout
> 2017-11-23 23:55:16 DEBUG KafkaStreams:183 - stream-client 
> [kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]Stopping Streams client 
> with timeoutMillis = 5000 ms.
> 2017-11-23 23:55:16 INFO  KafkaStreams:346 - stream-client 
> [kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31]State transition from 
> RUNNING to PENDING_SHUTDOWN
> 2017-11-23 23:55:16 INFO  StreamThread:336 - stream-thread 
> [kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] Informed 
> to shut down
> 2017-11-23 23:55:16 INFO  StreamThread:346 - stream-thread 
> [kafka-endpoint-be51569b-8795-4709-8ec8-28c9cd099a31-StreamThread-1] State 
> transition from RUNNING to PENDING_SHUTDOWN
> {code}



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