As title, it always took about 20 mins or more for datanode to become live in hdfs summary. I couldn't find any clue about it. Is there any way to speed up the process ? Thanks.
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2Its all depends on your DataNode size. Basically NameNode need to get every block information from DataNode to mark its healthy – BruceWayne Jun 12 '19 at 09:23
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Thanks. So the less block the faster restart duration. – Chandler.Huang Jun 14 '19 at 06:45