ZhangYao created KUDU-2911:
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Summary: Consider the free space when select data dirs for tablets
Key: KUDU-2911
URL: https://issues.apache.org/jira/browse/KUDU-2911
Project: Kudu
Issue Type: Improvement
Reporter: ZhangYao
Currently, it only consider the tablets number in a data dir when finding the
suitable dir group for new tablets. It randomly select directories and gives
preference to those with fewer tablets. We should also consider free disk space
to prevent insufficient space dir being selected and subsequence writing will
fail.
Maybe use FreeByte / TabletNumbers to measure is a way to consider both the
tablet number and the free space.
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