Details
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Improvement
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Status: Resolved
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Major
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Resolution: Won't Fix
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None
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None
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Description
we found that the Datanode doesn't do a graceful shutdown and a block can be corrupted (data + checksum amounts off)
we can make the DN do a graceful shutdown in case there are open files. if this presents a problem to a timely shutdown, we can make a it a parameter of how long to wait for the full graceful shutdown before just exiting