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Date: Fri, 30 Jun 2017 05:02:00 +0000 (UTC)
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Subject: [jira] [Commented] (FLINK-6352) FlinkKafkaConsumer should support
 to use timestamp to set up start offset
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archived-at: Fri, 30 Jun 2017 05:02:04 -0000


    [ https://issues.apache.org/jira/browse/FLINK-6352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069483#comment-16069483 ] 

ASF GitHub Bot commented on FLINK-6352:
---------------------------------------

Github user tzulitai commented on the issue:

    https://github.com/apache/flink/pull/3915
  
    @zjureel there seems to be a failure in the Kafka tests caused by this PR, could you have a look?
    >Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.875 sec <<< FAILURE! - in org.apache.flink.streaming.connectors.kafka.Kafka010ProducerITCase
    org.apache.flink.streaming.connectors.kafka.Kafka010ProducerITCase  Time elapsed: 2.874 sec  <<< FAILURE!
    java.lang.AssertionError: Test setup failed: null
    	at org.junit.Assert.fail(Assert.java:88)
    	at org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironmentImpl.prepare(KafkaTestEnvironmentImpl.java:226)
    	at org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironment.prepare(KafkaTestEnvironment.java:45)
    	at org.apache.flink.streaming.connectors.kafka.KafkaTestBase.startClusters(KafkaTestBase.java:138)
    	at org.apache.flink.streaming.connectors.kafka.KafkaTestBase.prepare(KafkaTestBase.java:98)
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.lang.reflect.Method.invoke(Method.java:606)
    	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
    	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
    	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
    	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
    	at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
    	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
    	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
    	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
    	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
    	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
    
    
    Results :
    
    Failed tests: 
      Kafka010ITCase>KafkaTestBase.prepare:98->KafkaTestBase.startClusters:138 Test setup failed: null
      Kafka010ProducerITCase>KafkaTestBase.prepare:98->KafkaTestBase.startClusters:138 Test setup failed: null


> FlinkKafkaConsumer should support to use timestamp to set up start offset
> -------------------------------------------------------------------------
>
>                 Key: FLINK-6352
>                 URL: https://issues.apache.org/jira/browse/FLINK-6352
>             Project: Flink
>          Issue Type: Improvement
>          Components: Kafka Connector
>            Reporter: Fang Yong
>            Assignee: Fang Yong
>             Fix For: 1.4.0
>
>
>     Currently "auto.offset.reset" is used to initialize the start offset of FlinkKafkaConsumer, and the value should be earliest/latest/none. This method can only let the job comsume the beginning or the most recent data, but can not specify the specific offset of Kafka began to consume. 
>     So, there should be a configuration item (such as "flink.source.start.time" and the format is "yyyy-MM-dd HH:mm:ss") that allows user to configure the initial offset of Kafka. The action of "flink.source.start.time" is as follows:
> 1) job start from checkpoint / savepoint
>   a> offset of partition can be restored from checkpoint/savepoint,  "flink.source.start.time" will be ignored.
>   b> there's no checkpoint/savepoint for the partition (For example, this partition is newly increased), the "flink.kafka.start.time" will be used to initialize the offset of the partition    
> 2) job has no checkpoint / savepoint, the "flink.source.start.time" is used to initialize the offset of the kafka
>   a> the "flink.source.start.time" is valid, use it to set the offset of kafka
>   b> the "flink.source.start.time" is out-of-range, the same as it does currently with no initial offset, get kafka's current offset and start reading


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