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https://issues.apache.org/jira/browse/HADOOP-15336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16419297#comment-16419297
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Íñigo Goiri commented on HADOOP-15336:
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{quote}
Reverse is an object FSserverDefaultsProto, thats why it has hasKeyProviderUri
method.
We can add hasKeyProviderUri method in FSserverDefaults and do null check in
that method.
{quote}
True, not PB here.
I'm OK with leaving the null check as it is right now; no need to add the new
method.
Given the discussion and [^HADOOP-15336.001.patch]: +1
I'm removing the compatibility flag too.
> NPE for FsServerDefaults.getKeyProviderUri() for clientProtocol communication
> between 2.7 and 3.2
> -------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15336
> URL: https://issues.apache.org/jira/browse/HADOOP-15336
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.1.0, 3.2.0
> Reporter: Sherwood Zheng
> Assignee: Sherwood Zheng
> Priority: Major
> Labels: common
> Attachments: HADOOP-15336.000.patch, HADOOP-15336.001.patch
>
>
> KeyProviderUri is not available in 2.7 so when 2.7 clients contact with 3.2
> services, it cannot find the key provider URI and triggers a
> NullPointerException.
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