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https://issues.apache.org/jira/browse/FLUME-3314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16762577#comment-16762577
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ASF subversion and git services commented on FLUME-3314:
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Commit 606eabb09997fa939735b5600f526a99895c350c in flume's branch
refs/heads/trunk from turcsanyip
[ https://gitbox.apache.org/repos/asf?p=flume.git;h=606eabb ]
FLUME-3314 Fixed NPE in Kafka source/channel during offset migration (#276)
* FLUME-3314 Fixed NPE in Kafka source/channel during offset migration
Kafka source/channel threw NPE when migrateOffsets() was called
on nonexistent topics.
It has been fixed by adding null check and logging a warning message
(topic not found, skipping offset migration).
After skipping the offset migration, the source/channel works the same way
as the "non offset migration" case:
- starts and prints warning messages about the non-existing topic periodically
- can recover if the topic is created later
* FLUME-3314 Additional null checks.
Reviewers: Ferenc Szabo
(Peter Turcsanyi via Ferenc Szabo)
> Flume kafka source/channel throws NPE when migrateOffsets() is called on
> nonexistent topics
> -------------------------------------------------------------------------------------------
>
> Key: FLUME-3314
> URL: https://issues.apache.org/jira/browse/FLUME-3314
> Project: Flume
> Issue Type: Bug
> Affects Versions: 1.8.0
> Reporter: Peter Turcsanyi
> Assignee: Peter Turcsanyi
> Priority: Minor
>
> KafkaConsumer.partitionsFor(topicStr) returns null if the topic does not
> exist and auto.create.topics.enabled has been set to false on Kafka side.
> This case is not handled in the Flume code which leads to NPE.
> Null check needs to be added and warning message should be logged instead of
> the exception stacktrace.
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