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https://issues.apache.org/jira/browse/FLINK-2235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14596102#comment-14596102
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Stephan Ewen commented on FLINK-2235:
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Sounds like a good way to fix this...
> Local Flink cluster allocates too much memory
> ---------------------------------------------
>
> Key: FLINK-2235
> URL: https://issues.apache.org/jira/browse/FLINK-2235
> Project: Flink
> Issue Type: Bug
> Components: Local Runtime, TaskManager
> Affects Versions: 0.9
> Environment: Oracle JDK: 1.6.0_65-b14-462
> Eclipse
> Reporter: Maximilian Michels
> Priority: Minor
>
> When executing a Flink job locally, the task manager gets initialized with an
> insane amount of memory. After a quick look in the code it seems that the
> call to {{EnvironmentInformation.getSizeOfFreeHeapMemoryWithDefrag()}}
> returns a wrong estimate of the heap memory size.
> Moreover, the same user switched to Oracle JDK 1.8 and that made the error
> disappear. So I'm guessing this is some Java 1.6 quirk.
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