[#3337] improvement(hadoop-catalog): Support user impersonation for Hadoop catalog. #3634
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What changes were proposed in this pull request?
Add user impersonation for the Hadoop catalog.
Why are the changes needed?
We need authentication for the encrypted HDFS cluster.
Fix: #3337
Does this PR introduce any user-facing change?
N/A.
How was this patch tested?
UT(TO add).