Eric Badger created HDFS-10459:
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Summary: getTurnOffTip computes needed block incorrectly for
threshold = 1
Key: HDFS-10459
URL: https://issues.apache.org/jira/browse/HDFS-10459
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Eric Badger
The fix added in HDFS-2002 only works in cases where threshold < 1, but not
when threshold = 1. There is a '+1' added to the computation because of this
assumption. I propose that instead of adding a '+1', we just set blockThreshold
to be the ceiling of blocksTotal*threshold. Since we need to be >=
blockThreshold to get out of safe mode, this will work. >14.9 is the same as
=15, since blocks work in integer values.
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