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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6311) NPE in FlinkKinesisConsumer if source was closed before run
Date Wed, 19 Apr 2017 17:13:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15975105#comment-15975105

ASF GitHub Bot commented on FLINK-6311:

Github user StephanEwen commented on the issue:

    The `shardConsumersExecutor` variable is final. No need to make it `volatile`.

> NPE in FlinkKinesisConsumer if source was closed before run
> -----------------------------------------------------------
>                 Key: FLINK-6311
>                 URL: https://issues.apache.org/jira/browse/FLINK-6311
>             Project: Flink
>          Issue Type: Bug
>          Components: Kinesis Connector
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: mingleizhang
> This was reported by an user: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flink-errors-out-and-job-fails-IOException-from-CollectSink-open-td12606.html
> The {{shutdownFetcher}} method of {{KinesisDataFetcher}} is not protected against the
condition when the source was closed before it started running. Both {{mainThread}} and {{shardConsumersExecutor}}
should have null checks.

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