Mark Shields created BEAM-260:
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Summary: Know the getSideInputWindow upper bound so can gc side
input state
Key: BEAM-260
URL: https://issues.apache.org/jira/browse/BEAM-260
Project: Beam
Issue Type: Bug
Components: beam-model
Reporter: Mark Shields
Assignee: Frances Perry
We currently have no static knowledge about the getSideInputWindow function,
and runners are thus forced to hold on to all side input state / elements in
case a future element reaches back into an earlier side input element.
Maybe we need an upper bound on lag from current to result of
getSideInputWindow so we can have a progressing gc horizon as we do for GKB
window state.
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