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pageserver: enable doing ancestor detach on timelines that have more than once ancestor #10310

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jcsp opened this issue Jan 8, 2025 · 0 comments

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c/storage/pageserver t/feature

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jcsp commented Jan 8, 2025

Currently the timeline detach code can only run if a timeline has a single ancestor: it's harder to go gather layers from a stack of ancestors.

We may either:

Make the ancestor detach code smarter, so that it can gather layers from many ancestors
Add a step where we do image layer generation in the immediate ancestor, so that the child being detached can guarantee that it will only need data from its immediate parent.

jcsp added c/storage/pageserver t/feature labels

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