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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2017/09/05 16:11:00 UTC
[jira] [Commented] (HADOOP-14707) AbstractContractDistCpTest to
test attr preservation with -p, verify blobstores downgrade
[ https://issues.apache.org/jira/browse/HADOOP-14707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153894#comment-16153894 ]
Steve Loughran commented on HADOOP-14707:
-----------------------------------------
Issue is that even if you don't set -p, you can't use distcp to upload the .raw stuff from an encrypted HDFS zone, as that force sets the -preserve flag, which of course fails against: s3a, wasb, adl, ...
> AbstractContractDistCpTest to test attr preservation with -p, verify blobstores downgrade
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-14707
> URL: https://issues.apache.org/jira/browse/HADOOP-14707
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs, fs/azure, fs/s3, test, tools/distcp
> Affects Versions: 2.9.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> It *may* be that trying to use {{distcp -p}} with S3a triggers a stack trace
> {code}
> java.lang.UnsupportedOperationException: S3AFileSystem doesn't support getXAttrs
> at org.apache.hadoop.fs.FileSystem.getXAttrs(FileSystem.java:2559)
> at org.apache.hadoop.tools.util.DistCpUtils.toCopyListingFileStatus(DistCpUtils.java:322)
> {code}
> Add a test to {{AbstractContractDistCpTest}} to verify that this is handled better. What is "handle better" here? Either ignore the option or fail with "don't do that" text
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