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Posted to issues@kudu.apache.org by "Andrew Wong (Jira)" <ji...@apache.org> on 2020/10/21 21:07:00 UTC

[jira] [Created] (KUDU-3204) Add a metric for amount of available space

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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