[jira] [Created] (IGNITE-17232) Optimization of DeltaFilePageStore: write new pages directly to FilePageStore

["Kirill Tkalenko (Jira)" <ji...@apache.org>]

Kirill Tkalenko created IGNITE-17232:
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             Summary: Optimization of DeltaFilePageStore: write new pages directly to FilePageStore
                 Key: IGNITE-17232
                 URL: https://issues.apache.org/jira/browse/IGNITE-17232
             Project: Ignite
          Issue Type: Improvement
            Reporter: Kirill Tkalenko
             Fix For: 3.0.0-alpha6


When creating class 1 at checkpoint, we sort the list of all dirty pages in the partition by ID, write to disk the sorted list of IDs (for ID binary lookup), the contents of the dirty pages, and the current ID of the page allocations.

I propose to optimize this a bit. In class 1, store only changes in existing pages, and write all new pages immediately to class 1, so we will reduce the work for the merger (it will need to write less to the main partition file) and the sorted list of pages will be smaller.



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