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https://issues.apache.org/jira/browse/HDFS-7931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-7931:
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Fix Version/s: 2.8.0
> DistributedFIleSystem should not look for keyProvider in cache if Encryption
> is disabled
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-7931
> URL: https://issues.apache.org/jira/browse/HDFS-7931
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.7.0
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Priority: Minor
> Fix For: 2.8.0, 2.7.1, 3.0.0-alpha1
>
> Attachments: HDFS-7931.1.patch, HDFS-7931.2.patch, HDFS-7931.2.patch,
> HDFS-7931.3.patch
>
>
> The {{addDelegationTokens}} method in {{DistributedFileSystem}} calls
> {{DFSClient#getKeyProvider()}} which attempts to get a provider from the
> {{KeyProvderCache}} but since the required key,
> *dfs.encryption.key.provider.uri* is not present (due to encryption being
> dissabled), it throws an exception.
> {noformat}
> 2015-03-11 23:55:47,849 [JobControl] ER ROR
> org.apache.hadoop.hdfs.KeyProviderCache - Could not find uri with key
> [dfs.encryption.key.provider.uri] to create a keyProvider !!
> {noformat}
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