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https://issues.apache.org/jira/browse/FLINK-4039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15342004#comment-15342004
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Ufuk Celebi commented on FLINK-4039:
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Just noticed while working on FLINK-4040, that specifying multiple GC settings
fails the JVM startup (at least for my JVM {{build 1.8.0_51-b16}}).
> G1 garbage collector only set if no custom jvm arguments
> --------------------------------------------------------
>
> Key: FLINK-4039
> URL: https://issues.apache.org/jira/browse/FLINK-4039
> Project: Flink
> Issue Type: Bug
> Components: Startup Shell Scripts
> Affects Versions: 1.0.0, 1.1.0
> Reporter: Gyula Fora
> Priority: Critical
> Fix For: 1.1.0
>
>
> This can lead to very unexpected behaviour with java 8.
> Let's say I want to profile my job so I set some jvm arguments, but this also
> implicitly change the gc which is kind of weird.
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