[
https://issues.apache.org/jira/browse/KAFKA-10370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ning Zhang updated KAFKA-10370:
-------------------------------
Description:
In WorkerSinkTask.java, when we want the consumer to start consuming from
certain offsets, rather than from the last committed offset,
[WorkerSinkTaskContext|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L295]
is used to carry the offsets from external world (e.g. implementation of
SinkTask).
In the [poll()
method|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L312],
it first call "rewind()" to (1) read the offsets from WorkerSinkTaskContext,
(2) consumer.seek(tp, offset) to rewind the consumer.
when running (2), we saw the following IllegalStateException:
{code:java}
[2020-08-07 23:53:55,752] INFO WorkerSinkTask{id=MirrorSinkConnector-0} Rewind
test-1 to offset 3 (org.apache.kafka.connect.runtime.WorkerSinkTask:648)
[2020-08-07 23:53:55,752] INFO [Consumer
clientId=connector-consumer-MirrorSinkConnector-0,
groupId=connect-MirrorSinkConnector] Seeking to offset 3 for partition test-1
(org.apache.kafka.clients.consumer.KafkaConsumer:1592)
[2020-08-07 23:53:55,752] ERROR WorkerSinkTask{id=MirrorSinkConnector-0} Task
threw an uncaught and unrecoverable exception
(org.apache.kafka.connect.runtime.WorkerTask:187)
java.lang.IllegalStateException: No current assignment for partition test-1
at
org.apache.kafka.clients.consumer.internals.SubscriptionState.assignedState(SubscriptionState.java:368)
at
org.apache.kafka.clients.consumer.internals.SubscriptionState.seekUnvalidated(SubscriptionState.java:385)
at
org.apache.kafka.clients.consumer.KafkaConsumer.seek(KafkaConsumer.java:1597)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.rewind(WorkerSinkTask.java:649)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:334)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:229)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:198)
at
org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:185)
at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:235)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[2020-08-07 23:53:55,752] ERROR WorkerSinkTask{id=MirrorSinkConnector-0} Task
is being killed and will not recover until manually restarted
(org.apache.kafka.connect.runtime.WorkerTask:188)
{code}
As suggested in
https://stackoverflow.com/questions/41008610/kafkaconsumer-0-10-java-api-error-message-no-current-assignment-for-partition/41010594,
the resolution that has been initially verified is to use *consumer.assign*
with *consumer.seek* , instead of *consumer.subscribe*.
was:
In WorkerSinkTask.java, when we want the consumer to start consuming from
certain offsets, rather than from the last committed offset,
[WorkerSinkTaskContext|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L295]
is used to carry the offsets from external world (e.g. implementation of
SinkTask).
In the [poll()
method|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L312],
it first call "rewind()" to (1) read the offsets from WorkerSinkTaskContext,
(2) consumer.seek(tp, offset) to rewind the consumer.
when running (2), we saw the following IllegalStateException:
{code:java}
java.lang.IllegalStateException: No current assignment for partition mytopic-1
at
org.apache.kafka.clients.consumer.internals.SubscriptionState.assignedState(SubscriptionState.java:251)
at
org.apache.kafka.clients.consumer.internals.SubscriptionState.seek(SubscriptionState.java:276)
at
org.apache.kafka.clients.consumer.KafkaConsumer.seek(KafkaConsumer.java:1135)
{code}
As suggested in
https://stackoverflow.com/questions/41008610/kafkaconsumer-0-10-java-api-error-message-no-current-assignment-for-partition/41010594,
the resolution that has been initially verified is to use *consumer.assign*
with *consumer.seek* , instead of *consumer.subscribe*.
> WorkerSinkTask: IllegalStateException cased by consumer.seek(tp, offsets)
> when (tp, offsets) are supplied by WorkerSinkTaskContext
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-10370
> URL: https://issues.apache.org/jira/browse/KAFKA-10370
> Project: Kafka
> Issue Type: New Feature
> Components: KafkaConnect
> Affects Versions: 2.5.0
> Reporter: Ning Zhang
> Assignee: Ning Zhang
> Priority: Major
> Fix For: 2.6.0
>
>
> In WorkerSinkTask.java, when we want the consumer to start consuming from
> certain offsets, rather than from the last committed offset,
> [WorkerSinkTaskContext|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L295]
> is used to carry the offsets from external world (e.g. implementation of
> SinkTask).
> In the [poll()
> method|https://github.com/apache/kafka/blob/trunk/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSinkTask.java#L312],
> it first call "rewind()" to (1) read the offsets from WorkerSinkTaskContext,
> (2) consumer.seek(tp, offset) to rewind the consumer.
> when running (2), we saw the following IllegalStateException:
> {code:java}
> [2020-08-07 23:53:55,752] INFO WorkerSinkTask{id=MirrorSinkConnector-0}
> Rewind test-1 to offset 3
> (org.apache.kafka.connect.runtime.WorkerSinkTask:648)
> [2020-08-07 23:53:55,752] INFO [Consumer
> clientId=connector-consumer-MirrorSinkConnector-0,
> groupId=connect-MirrorSinkConnector] Seeking to offset 3 for partition test-1
> (org.apache.kafka.clients.consumer.KafkaConsumer:1592)
> [2020-08-07 23:53:55,752] ERROR WorkerSinkTask{id=MirrorSinkConnector-0} Task
> threw an uncaught and unrecoverable exception
> (org.apache.kafka.connect.runtime.WorkerTask:187)
> java.lang.IllegalStateException: No current assignment for partition test-1
> at
> org.apache.kafka.clients.consumer.internals.SubscriptionState.assignedState(SubscriptionState.java:368)
> at
> org.apache.kafka.clients.consumer.internals.SubscriptionState.seekUnvalidated(SubscriptionState.java:385)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.seek(KafkaConsumer.java:1597)
> at
> org.apache.kafka.connect.runtime.WorkerSinkTask.rewind(WorkerSinkTask.java:649)
> at
> org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:334)
> at
> org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:229)
> at
> org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:198)
> at
> org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:185)
> at
> org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:235)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> [2020-08-07 23:53:55,752] ERROR WorkerSinkTask{id=MirrorSinkConnector-0} Task
> is being killed and will not recover until manually restarted
> (org.apache.kafka.connect.runtime.WorkerTask:188)
> {code}
> As suggested in
> https://stackoverflow.com/questions/41008610/kafkaconsumer-0-10-java-api-error-message-no-current-assignment-for-partition/41010594,
> the resolution that has been initially verified is to use *consumer.assign*
> with *consumer.seek* , instead of *consumer.subscribe*.
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