Page History

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One week will generate 10080 points (about 1.3 pages). Therefore, 1 chunk has 1~2 pages (about 79.3K). In this scenario, chunk and page should only reserve one.

Reserve both chunk and page:

• Chunk is the unit for I/O and page is the unit for query, which could supply multiple levels of I/O

• Suitable for all kinds of query scenarios, whether aggregation query or raw data query

Reserve only page:

• Suitable for APM scenario

• Simple structure, which could reduce one level of I/O

(III) Experiment about how to store PageHeader

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