Ivan Rakov created IGNITE-11089:
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Summary: Get rid of partition ID in intra-partition page links
stored in delta records
Key: IGNITE-11089
URL: https://issues.apache.org/jira/browse/IGNITE-11089
Project: Ignite
Issue Type: Improvement
Reporter: Ivan Rakov
Fix For: 2.8
We had faced numerous bugs when pages that were initially allocated in
partition X migrated to partition Y (example: IGNITE-8659). Such migration may
cause storage corruption: in partition Y gets evicted, attempt to dereference
link to migrated page will cause error.
We may prevent such situations in general and gain few percent performance
boost at the same time:
1) Locate all links to pages in delta records, including self-links (examples:
InitNewPageRecord#newPageId, PagesListSetNextRecord#nextPageId,
MergeRecord#rightId).
2) Change storing format for such links: save only 6 bytes instead of 8
(without partition ID).
3) In every delta record constructor, assert that link's partition ID is equal
to PageDeltaRecord#pageId. Exception is pages from index partition: they may
refer to pages from other partitions by design.
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