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https://issues.apache.org/jira/browse/OOZIE-3575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17014230#comment-17014230
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Hadoop QA commented on OOZIE-3575:
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PreCommit-OOZIE-Build started


> Add credential support for cloud file systems
> ---------------------------------------------
>
>                 Key: OOZIE-3575
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3575
>             Project: Oozie
>          Issue Type: Sub-task
>          Components: core
>    Affects Versions: 5.2.0
>            Reporter: Mate Juhasz
>            Assignee: Mate Juhasz
>            Priority: Major
>             Fix For: trunk
>
>         Attachments: OOZIE-3575-v2.patch, OOZIE-3575.patch
>
>
> Oozie by default gathers delegation tokens for the nodes defined in 
> _mapreduce.job.hdfs-servers_ (or _oozie.launcher.mapreduce.job.hdfs-servers_ 
> in case of distcp actions) and for the workflow path.
> Though this implementation is good for hdfs, we dont support occasions where 
> the job related resources, which we want to access in runtime are present on 
> different file systems/buckets etc...
> The HDFSCredentials class should be revised to handle getting tokens for 
> different cloud storages.
> *The following scenarios should be addressed:*
> Oozie should obtain delegation token in case
> * the defaultFs is cloud
> * the workload.xml is in cloud
> * input/output/auxiliary files referred from workflow are in cloud
> * (newly introduced feature) user could define filesystem credentials for the 
> workflow (as its done with hive/hcat etc..) -> this would allow the user to 
> handle the situation where Oozie could not decide which tokens are needed at 
> launch time by default and could also get tokens for different cloud storages 
> and buckets as well
> Example for credentials addition:
> {noformat}
> <credential name="aws_auth" type="filesystem">
>   <property>
>     <name>filesystem</name>
>     <value>s3a://qe-s3-bucket-mst</value>
>   </property>
> </credential>
> {noformat}



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