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Posted to issues@kudu.apache.org by "Adar Dembo (JIRA)" <ji...@apache.org> on 2017/04/13 02:31:41 UTC

[jira] [Created] (KUDU-1971) Explore reducing number of data blocks by tuning existing parameters

Adar Dembo created KUDU-1971:
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             Summary: Explore reducing number of data blocks by tuning existing parameters
                 Key: KUDU-1971
                 URL: https://issues.apache.org/jira/browse/KUDU-1971
             Project: Kudu
          Issue Type: Sub-task
          Components: tablet
    Affects Versions: 1.4.0
            Reporter: Adar Dembo


One way to scale to larger on-disk data sets is to reduce the ratio between data blocks and data; that is, to make data blocks larger. Two existing parameters control for this:
* budgeted_compaction_target_rowset_size: within a given flush or compaction operation, stipulates the size of each rowset. Currently 32M.
* tablet_compaction_budget_mb: stipulates the amount of data that should be included in any given compaction. Currently 128M.

It might be interesting to explore raising these.



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