Github user samelamin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17472#discussion_r108881923
--- Diff: common/unsafe/src/main/java/org/apache/spark/unsafe/Platform.java
---
@@ -46,18 +46,22 @@
private static final boolean unaligned;
static {
boolean _unaligned;
- // use reflection to access unaligned field
- try {
- Class<?> bitsClass =
- Class.forName("java.nio.Bits", false,
ClassLoader.getSystemClassLoader());
- Method unalignedMethod = bitsClass.getDeclaredMethod("unaligned");
- unalignedMethod.setAccessible(true);
- _unaligned = Boolean.TRUE.equals(unalignedMethod.invoke(null));
- } catch (Throwable t) {
- // We at least know x86 and x64 support unaligned access.
- String arch = System.getProperty("os.arch", "");
- //noinspection DynamicRegexReplaceableByCompiledPattern
- _unaligned =
arch.matches("^(i[3-6]86|x86(_64)?|x64|amd64|aarch64)$");
+ String arch = System.getProperty("os.arch", "");
+ if (arch.matches("^(ppc64le | ppc64)$")) {
--- End diff --
yeah sorry complete fail, didnt see that lol
With regards to a big-endian PPC64 arch , I dont think so but I am not 100%
sure. that said as it stands it isn't supported and the test fails. So happy to
change the PR or even close it if you do not see any value it adds
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