refactor: remove random subchunk ordering#4011

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d-v-b wants to merge 11 commits into

zarr-developers:mainfrom

d-v-b:no-random-subchunk-order

Commits on May 26, 2026

feat: subchunk write order (#3826)

ilan-gold
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d-v-b
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refactor: unordered subchunk order means no-promise, not random

d-v-b
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claude
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test: pin subchunk_write_order survival through pickle

d-v-b
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claude
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refactor: remove rng from ShardingCodec; carry subchunk_write_order through pickle

d-v-b
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claude
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docs: describe unordered subchunk order as no-guarantee, drop rng

d-v-b
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claude
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test: drive sharding strategy through serializer to exercise subchunk_write_order

d-v-b
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claude
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harden: guard _subchunk_order_iter; document write-order is not persisted

d-v-b
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claude
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cleanup: use np.ndindex for immaterial intermediate order; drop stale FIXME

d-v-b
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claude
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polish: guard scalar arrays in sharding strategy; align doc value ordering

d-v-b
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claude
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Merge: keep rng-free subchunk write order over incoming feature
d-v-b
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Merge branch 'main' into no-random-subchunk-order
d-v-b
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