hadoop datanode close itself automatically

Posted 2020-08-14

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Since the first day I tackle this problem, I encounter all kinds of situation.

First way to solve it, is deleting the whole directory of hadoop and then reinstall it.

Then I try to change the namespaceID in /data/current/BP````/current/VERSION and make it the same with that in /name/current/VERSION.

It worked yesterday but it malfunctioned today.

Holy ****.

Then I delete the /name and /data and regenerate them. The problem seems to be fixed.

God knows what kind of new problem will appear tomorrow.

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