HDFS-15906. Close FSImage and FSNamesystem after formatting is complete#2788

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tasanuma merged 2 commits intoapache:trunkfrom

tomscut:HDFS-15906

Mar 22, 2021

Commits on Mar 19, 2021

HDFS-15906. Close FSImage and FSNamesystem after formatting is complete
tomscut
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Commits on Mar 22, 2021

move close operation to finally scope, verify fsn and fsImage are not null before closing them
tomscut
committed