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https://issues.apache.org/jira/browse/FLINK-8596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374348#comment-16374348
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ASF GitHub Bot commented on FLINK-8596:
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Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/5543
There's also a `ClassNotFoundException` in the logs, which is not ignored.
> Custom command line code does not correctly catch errors
> --------------------------------------------------------
>
> Key: FLINK-8596
> URL: https://issues.apache.org/jira/browse/FLINK-8596
> Project: Flink
> Issue Type: Bug
> Components: Client
> Affects Versions: 1.5.0
> Reporter: Aljoscha Krettek
> Assignee: Chesnay Schepler
> Priority: Blocker
> Fix For: 1.5.0
>
>
> The code that is trying to load the YARN CLI is catching {{Exception}} but if
> the YARN CLI cannot be loaded a {{java.lang.NoClassDefFoundError}} is thrown:
> https://github.com/apache/flink/blob/0e20b613087e1b326e05674e3d532ea4aa444bc3/flink-clients/src/main/java/org/apache/flink/client/cli/CliFrontend.java#L1067
> This means that Flink does not work in Hadoop-free mode. We should fix this
> and also add an end-to-end test that verifies that Hadoop-free mode works.
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