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https://issues.apache.org/jira/browse/SPARK-18503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15679064#comment-15679064
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Sean Owen commented on SPARK-18503:
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Yes, I don't think that's a problem per se. The various memory properties now
default to interpreting this value as megabytes, and in any event I don't think
we'd change the behavior in a minor release as it would be a behavior change.
It's best to specify your units anyway for clarity.
CC [~jerryshao] given
https://github.com/apache/spark/pull/11603/files#diff-6bdad48cfc34314e89599655442ff210R38
> Pre 2.0 spark driver/executor memory default unit is bytes, post 2.0 default
> unit is MB
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-18503
> URL: https://issues.apache.org/jira/browse/SPARK-18503
> Project: Spark
> Issue Type: Bug
> Components: Deploy
> Affects Versions: 2.0.0, 2.0.1, 2.0.2
> Reporter: Chris McCubbin
> Priority: Minor
>
> Prior to v2.0, Spark's executor memory default unit was in bytes. i.e. if one
> set "spark.executor.memory" to "1000000" this was interpreted as 1,000,000
> bytes if no unit was supplied (like "1m"). This is consistent with the JVM.
> Changes introduced by SPARK-12343 in 2.0 made this default unit MB, so
> "1000000" is interpreted as 1,000,000 MB.
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