[Filebrowser] Add get delegation token logic for secure hadoop (#3301) (Related with: #3324,#3449 ) #3814
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fix recursive call of delegation token
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What changes were proposed in this pull request?
I am working on integrating Hue with SecureHadoop as a ProxyUser.
I found that the behavior of ProxyUser in WebHDFS FileBrowser needs to be enhanced.
When "security_enabled" is true, only "read_url" method use delegation token.
I want to modify the code
so that a user who has been impersonated from Hue(a proxy user) can issue a Delegation Token when using WebHDFS.
(#3323)
How was this patch tested?
Our company has been successfully using this fixed code since last year, so I'm sure that this bug fix work well.