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Posted to issues@ozone.apache.org by "Sammi Chen (Jira)" <ji...@apache.org> on 2022/10/13 07:00:00 UTC

[jira] [Created] (HDDS-7320) Enable SchemaV3 by default

Sammi Chen created HDDS-7320:
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             Summary: Enable SchemaV3 by default
                 Key: HDDS-7320
                 URL: https://issues.apache.org/jira/browse/HDDS-7320
             Project: Apache Ozone
          Issue Type: Sub-task
            Reporter: Sammi Chen
            Assignee: Sammi Chen


Stability:

SchemaV3 has used int the production cluster of Tencent and Qihu for more than half year. So far, the only issue reported by Qihu is the too many small sst files due to migrating all existing SchemaV2 containers to SchemaV3(This migrating tool is developed by Qihu itself).

 

Performance:

A stress performance is conducted against V3 and V2.  V3 has the same write performance as V2 with big file/object, and has around 10% write performance gain than V2 with small file/object(<16MB).  For read,  V3 has the same performance as V2.

 

In a summary, I think it's the right time to enable V3 by default.



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