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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/09/09 18:14:21 UTC
[jira] [Updated] (SPARK-17421) Document warnings about
"MaxPermSize" parameter when building with Maven and Java 8
[ https://issues.apache.org/jira/browse/SPARK-17421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated SPARK-17421:
------------------------------
Priority: Trivial (was: Minor)
Issue Type: Improvement (was: Bug)
Summary: Document warnings about "MaxPermSize" parameter when building with Maven and Java 8 (was: Warnings about "MaxPermSize" parameter when building with Maven and Java 8)
> Document warnings about "MaxPermSize" parameter when building with Maven and Java 8
> -----------------------------------------------------------------------------------
>
> Key: SPARK-17421
> URL: https://issues.apache.org/jira/browse/SPARK-17421
> Project: Spark
> Issue Type: Improvement
> Components: Build
> Reporter: Frederick Reiss
> Priority: Trivial
>
> When building Spark with {{build/mvn}} or {{dev/run-tests}}, a Java warning appears repeatedly on STDERR:
> {{OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0}}
> This warning is due to {{build/mvn}} adding the {{-XX:MaxPermSize=512M}} option to {{MAVEN_OPTS}}. When compiling with Java 7, this parameter is essential. With Java 8, the parameter leads to the warning above.
> Because {{build/mvn}} adds {{MaxPermSize}} to {{MAVEN_OPTS}}, even if that environment variable doesn't contain the option, setting {{MAVEN_OPTS}} to a string that does not contain {{MaxPermSize}} has no effect.
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