Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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3.0.2
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None
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None
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None
Description
Today when submit a job to a viewfs cluster, the client will try to obtain delegation token from all namenodes under the viewfs while only one namespace is actually used in this job. It would create many unnecessary rpc call to the whole cluster.
In viewfs situation, we can just obtain delegation token from specific namenode rather than all namenodes.