pabloem commented on a change in pull request #15378:
URL: https://github.com/apache/beam/pull/15378#discussion_r747900422
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File path: website/www/site/data/capability_matrix.yaml
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@@ -1704,3 +1704,42 @@ capability-matrix:
l1:
l2:
l3:
+ - name: Key-ordered delivery
+ description: The runner offers guarantees for the order in which
elements are passed in between operations. See <a href=''>per-key ordering
semantics.</a>
+ values:
+ - class: dataflow
+ l1: "Partially"
+ l2:
+ l3: Dataflow performs different shuffling algorithms for batch
and streaming. Dataflow guarantees key-ordered delivery in streaming, though
not in batch.
Review comment:
hm we have not stated this in Dataflow documentation (I'm working on
that), but it's true for streaming.
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