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https://issues.apache.org/jira/browse/FLINK-15611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17019366#comment-17019366
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Gary Yao edited comment on FLINK-15611 at 1/20/20 10:18 AM:
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{quote}But it does not guarantee the consumer won't re-consume the messages.
{quote}
Can you elaborate on this? The producer should be idempotent now and the Flink
job is checkpointed - How can we see duplicates in the Flink job? This test
failed on January 16, your fix for FLINK-15490 was merged on the 10th.
was (Author: gjy):
{quote}But it does not guarantee the consumer won't re-consume the messages.
{quote}
Can you elaborate on this? The producer should be idempotent now and the Flink
job is checkpointed - How can we see duplicates in the Flink job? This test
failed on January 12, your fix for FLINK-15490 was merged on the 10th.
> KafkaITCase.testOneToOneSources fails on Travis
> -----------------------------------------------
>
> Key: FLINK-15611
> URL: https://issues.apache.org/jira/browse/FLINK-15611
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka, Tests
> Reporter: Yangze Guo
> Assignee: Jiangjie Qin
> Priority: Blocker
> Fix For: 1.10.0
>
>
> {{The test KafkaITCase.testOneToOneSources failed on Travis.}}
> {code:java}
> 03:15:02,019 INFO
> org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironmentImpl -
> Deleting topic scale-down-before-first-checkpoint
> 03:15:02,037 INFO
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducerITCase -
> --------------------------------------------------------------------------------
> Test
> testScaleDownBeforeFirstCheckpoint(org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducerITCase)
> successfully run.
> ================================================================================
> 03:15:02,038 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - -------------------------------------------------------------------------
> 03:15:02,038 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - Shut down KafkaTestBase
> 03:15:02,038 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - -------------------------------------------------------------------------
> 03:15:25,728 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - -------------------------------------------------------------------------
> 03:15:25,728 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - KafkaTestBase finished
> 03:15:25,728 INFO org.apache.flink.streaming.connectors.kafka.KafkaTestBase
> - -------------------------------------------------------------------------
> 03:15:25.731 [INFO] Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time
> elapsed: 245.845 s - in
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducerITCase
> 03:15:26.099 [INFO]
> 03:15:26.099 [INFO] Results:
> 03:15:26.099 [INFO]
> 03:15:26.099 [ERROR] Failures:
> 03:15:26.099 [ERROR]
> KafkaITCase.testOneToOneSources:97->KafkaConsumerTestBase.runOneToOneExactlyOnceTest:862
> Test failed: Job execution failed.
> {code}
> https://api.travis-ci.com/v3/job/276124537/log.txt
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