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https://issues.apache.org/jira/browse/HADOOP-19807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18057025#comment-18057025
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ASF GitHub Bot commented on HADOOP-19807:
-----------------------------------------
pan3793 commented on code in PR #8235:
URL: https://github.com/apache/hadoop/pull/8235#discussion_r2777277077
##########
BUILDING.txt:
##########
@@ -29,7 +29,17 @@ This requires a recent version of docker (1.4.1 and higher
are known to work).
On Linux / Mac:
Install Docker and run this command:
- $ ./start-build-env.sh [OS platform]
+ $ [CPU_ARCH=<arch>] ./start-build-env.sh [OS platform]
+
+ - [CPU_ARCH=<arch>] One of [x86_64, amd64, aarch64, arm64].
+ Default is output of 'uname -m'. Set to 'x86_64' on arm machine
+ (e.g. Apple M1) to create an x86_64 container.
+ Note:
+ CPU arch simulation may have significant performance overhead.
Review Comment:
On Apple Silicon, Docker can leverage Rosetta2 for x86 emulation, the
performance overhead is accepted.
> Enable cross-platform support for dev container
> -----------------------------------------------
>
> Key: HADOOP-19807
> URL: https://issues.apache.org/jira/browse/HADOOP-19807
> Project: Hadoop Common
> Issue Type: Improvement
> Components: build
> Affects Versions: 3.5.0
> Reporter: Cheng Pan
> Priority: Major
> Labels: pull-request-available
>
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