Jitendra Nath Pandey commented on HADOOP-14640:

+1 The latest patch looks good to me.
Thanks for addressing the comments [~snayak].

> Azure: Support affinity for service running on localhost and reuse SPNEGO 
> hadoop.auth cookie for authorization, SASKey and delegation token generation
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>                 Key: HADOOP-14640
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14640
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/azure
>    Affects Versions: 2.9.0
>            Reporter: Santhosh G Nayak
>            Assignee: Santhosh G Nayak
>              Labels: security
>         Attachments: HADOOP-14640.1.patch, HADOOP-14640.2.patch, 
> HADOOP-14640.3.patch, HADOOP-14640.4.patch
> Currently, {{WasbRemoteCallHelper}} can be configured to talk to comma 
> separated list of URLs for authorization, SASKey generation and delegation 
> token generation.
> To improve the performance, if service runs on the local machine, give it 
> first preference over the other configured list of URLs. 
> Currently, {{WasbRemoteCallHelper}} generates {{hadoop.auth}} cookie for 
> every request by talking to the remote service, before making actual rest 
> requests.
> The proposal is to reuse the {{hadoop.auth}} cookie for subsequent requests 
> from same {{WasbRemoteCallHelper}} object until its expiry time. 

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