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https://issues.apache.org/jira/browse/SPARK-19999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15936349#comment-15936349
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Sean Owen commented on SPARK-19999:
-----------------------------------
Although this is going to be a very niche problem, and eventually fixed in the
JDK, I imagine it's also pretty easy to patch around -- is there a drawback to
special-casing this arch in the Spark code or will it have another consequence?
> Test failures in Spark Core due to java.nio.Bits.unaligned()
> ------------------------------------------------------------
>
> Key: SPARK-19999
> URL: https://issues.apache.org/jira/browse/SPARK-19999
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.1.0, 2.2.0
> Environment: Ubuntu 14.04 ppc64le
> $ java -version
> openjdk version "1.8.0_111"
> OpenJDK Runtime Environment (build 1.8.0_111-8u111-b14-3~14.04.1-b14)
> OpenJDK 64-Bit Server VM (build 25.111-b14, mixed mode)
> Reporter: Sonia Garudi
> Labels: ppc64le
>
> There are multiple test failures seen in Spark Core project with the
> following error message :
> {code:borderStyle=solid}
> java.lang.IllegalArgumentException: requirement failed: No support for
> unaligned Unsafe. Set spark.memory.offHeap.enabled to false.
> {code}
> These errors occur due to java.nio.Bits.unaligned(), which does not return
> true for the ppc64le arch.
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