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Posted to jira@kafka.apache.org by "Chris Egerton (Jira)" <ji...@apache.org> on 2023/02/23 13:20:00 UTC
[jira] [Updated] (KAFKA-14545) MirrorCheckpointTask throws NullPointerException when group hasn't consumed from some partitions
[ https://issues.apache.org/jira/browse/KAFKA-14545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Egerton updated KAFKA-14545:
----------------------------------
Fix Version/s: 3.4.1
> MirrorCheckpointTask throws NullPointerException when group hasn't consumed from some partitions
> ------------------------------------------------------------------------------------------------
>
> Key: KAFKA-14545
> URL: https://issues.apache.org/jira/browse/KAFKA-14545
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 3.3.0, 3.4.0
> Reporter: Chris Solidum
> Assignee: Chris Solidum
> Priority: Major
> Fix For: 3.5.0, 3.4.1
>
>
> MirrorTaskConnector looks like it's throwing a NullPointerException when a consumer group hasn't consumed from all topics from a partition. This blocks the syncing of consumer group offsets to the target cluster. The stacktrace and error message is as follows:
> {code:java}
> WARN Failure polling consumer state for checkpoints. (org.apache.kafka.connect.mirror.MirrorCheckpointTask)
> at java.base/java.lang.Thread.run(Thread.java:829)Dec 20
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at org.apache.kafka.connect.runtime.AbstractWorkerSourceTask.run(AbstractWorkerSourceTask.java:72)
> at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:244)
> at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:189)
> at org.apache.kafka.connect.runtime.AbstractWorkerSourceTask.execute(AbstractWorkerSourceTask.java:346)
> at org.apache.kafka.connect.runtime.AbstractWorkerSourceTask.poll(AbstractWorkerSourceTask.java:452)
> at org.apache.kafka.connect.mirror.MirrorCheckpointTask.poll(MirrorCheckpointTask.java:142)
> at org.apache.kafka.connect.mirror.MirrorCheckpointTask.sourceRecordsForGroup(MirrorCheckpointTask.java:160)
> at org.apache.kafka.connect.mirror.MirrorCheckpointTask.checkpointsForGroup(MirrorCheckpointTask.java:177)
> at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
> at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
> at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
> at java.base/java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1764)
> at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
> at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
> at org.apache.kafka.connect.mirror.MirrorCheckpointTask.lambda$checkpointsForGroup$2(MirrorCheckpointTask.java:174)
> at org.apache.kafka.connect.mirror.MirrorCheckpointTask.checkpoint(MirrorCheckpointTask.java:191)
> java.lang.NullPointerException
> {code}
> This seems to happen if the OffsetFetch call returns a OffsetFetchPartitionResponsePartition with a negative commitedOffset. Mirrormaker should handle this case more gracefully and still be sync over consumer offsets for non negative partitions.
> {code:java}
> TRACE [AdminClient clientId=adminclient-55] Call(callName=offsetFetch(api=OFFSET_FETCH), deadlineMs=1671657869539, tries=0, nextAllowedTryMs=0) got response OffsetFetchResponseData(throttleTimeMs=0, topics=[OffsetFetchResponseTopic(name='XXX', partitions=[OffsetFetchResponsePartition(partitionIndex=1, committedOffset=866, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=0, committedOffset=865, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=9, committedOffset=868, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=14, committedOffset=870, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=5, committedOffset=803, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=8, committedOffset=881, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=11, committedOffset=-1, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=4, committedOffset=872, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=7, committedOffset=863, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=10, committedOffset=835, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=13, committedOffset=860, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=12, committedOffset=885, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=3, committedOffset=771, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=6, committedOffset=859, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=2, committedOffset=820, committedLeaderEpoch=-1, metadata='', errorCode=0), OffsetFetchResponsePartition(partitionIndex=15, committedOffset=826, committedLeaderEpoch=-1, metadata='', errorCode=0)])], errorCode=0, groups=[]) (org.apache.kafka.clients.admin.KafkaAdminClient) {code}
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