Andrew Wong created KUDU-3204:
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Summary: Add a metric for amount of available space
Key: KUDU-3204
URL: https://issues.apache.org/jira/browse/KUDU-3204
Project: Kudu
Issue Type: Improvement
Components: fs, metrics
Reporter: Andrew Wong
It'd be convenient to expose a metric for how much space there is available on
each tablet server (accounting for {{fs_wal_dir_reserved_bytes}} and
{{fs_data_dirs_reserved_bytes}}). This would be useful in implementing a
replica placement policy based on available space.
It's probably worth separating metrics for available WAL directory space and
available data directory space. E.g. we may want to treat a lack of space
differently depending on whether we are limited on WAL space and not limited on
data space, and vice versa.
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