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https://issues.apache.org/jira/browse/HADOOP-11711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14359879#comment-14359879
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Yi Liu commented on HADOOP-11711:
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+1, Thanks Andrew!
> Provide a default value for AES/CTR/NoPadding CryptoCodec classes
> -----------------------------------------------------------------
>
> Key: HADOOP-11711
> URL: https://issues.apache.org/jira/browse/HADOOP-11711
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.6.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Minor
> Attachments: hadoop-11711.001.patch, hadoop-11711.002.patch
>
>
> Users can configure the desired class to use for a given codec via a property
> like {{hadoop.security.crypto.codec.classes.aes.ctr.nopadding}}. However,
> even though we provide a default value for this codec in
> {{core-default.xml}}, this default is not also done in the code.
> As a result, client deployments that do not include {{core-default.xml}}
> cannot resolve any codecs, and get an NPE.
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