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https://issues.apache.org/jira/browse/KAFKA-15653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17777846#comment-17777846
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Travis Bischel commented on KAFKA-15653:
----------------------------------------
Sorry, one more note: I'm also occasionally getting InvalidRecordException
frequently without NPE. The attached repro script ignores
InvalidRecordException because it's easier to get a failure that contains NPE
when ignoring that error, when not ignoring that error, frequently the test
fails with InvalidRecordException without an NPE (so, different sort of problem
-- but perhaps related).
Attached is a script that will clone the franz-go repo, optionally install Go,
and loop docker compose up/down with integration tests. Once the script stops,
container logs are in CONTAINER_LOGS, and franz-go debug logs are in
FRANZ_FAIL. In FRANZ_FAIL, you can search for `--- FAIL` to see the error that
caused the test to stop (usually UNKNOWN_SERVER_ERROR) and then search for the
first instance of that error -- it will be returned from producing. In
CONTAINER_LOGS, you can look for NullPointerException or InvalidRecordException.
[^repro.sh]
> NPE in ChunkedByteStream
> ------------------------
>
> Key: KAFKA-15653
> URL: https://issues.apache.org/jira/browse/KAFKA-15653
> Project: Kafka
> Issue Type: Bug
> Components: producer
> Affects Versions: 3.6.0
> Environment: Docker container on a Linux laptop, using the latest
> release.
> Reporter: Travis Bischel
> Assignee: Divij Vaidya
> Priority: Major
> Attachments: repro.sh
>
>
> When looping franz-go integration tests, I received an UNKNOWN_SERVER_ERROR
> from producing. The broker logs for the failing request:
>
> {noformat}
> [2023-10-19 22:29:58,160] ERROR [ReplicaManager broker=2] Error processing
> append operation on partition
> 2fa8995d8002fbfe68a96d783f26aa2c5efc15368bf44ed8f2ab7e24b41b9879-24
> (kafka.server.ReplicaManager)
> java.lang.NullPointerException
> at
> org.apache.kafka.common.utils.ChunkedBytesStream.<init>(ChunkedBytesStream.java:89)
> at
> org.apache.kafka.common.record.CompressionType$3.wrapForInput(CompressionType.java:105)
> at
> org.apache.kafka.common.record.DefaultRecordBatch.recordInputStream(DefaultRecordBatch.java:273)
> at
> org.apache.kafka.common.record.DefaultRecordBatch.compressedIterator(DefaultRecordBatch.java:277)
> at
> org.apache.kafka.common.record.DefaultRecordBatch.skipKeyValueIterator(DefaultRecordBatch.java:352)
> at
> org.apache.kafka.storage.internals.log.LogValidator.validateMessagesAndAssignOffsetsCompressed(LogValidator.java:358)
> at
> org.apache.kafka.storage.internals.log.LogValidator.validateMessagesAndAssignOffsets(LogValidator.java:165)
> at kafka.log.UnifiedLog.append(UnifiedLog.scala:805)
> at kafka.log.UnifiedLog.appendAsLeader(UnifiedLog.scala:719)
> at
> kafka.cluster.Partition.$anonfun$appendRecordsToLeader$1(Partition.scala:1313)
> at kafka.cluster.Partition.appendRecordsToLeader(Partition.scala:1301)
> at
> kafka.server.ReplicaManager.$anonfun$appendToLocalLog$6(ReplicaManager.scala:1210)
> at
> scala.collection.StrictOptimizedMapOps.map(StrictOptimizedMapOps.scala:28)
> at
> scala.collection.StrictOptimizedMapOps.map$(StrictOptimizedMapOps.scala:27)
> at scala.collection.mutable.HashMap.map(HashMap.scala:35)
> at
> kafka.server.ReplicaManager.appendToLocalLog(ReplicaManager.scala:1198)
> at kafka.server.ReplicaManager.appendEntries$1(ReplicaManager.scala:754)
> at
> kafka.server.ReplicaManager.$anonfun$appendRecords$18(ReplicaManager.scala:874)
> at
> kafka.server.ReplicaManager.$anonfun$appendRecords$18$adapted(ReplicaManager.scala:874)
> at
> kafka.server.KafkaRequestHandler$.$anonfun$wrap$3(KafkaRequestHandler.scala:73)
> at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:130)
> at java.base/java.lang.Thread.run(Unknown Source)
> {noformat}
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