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Posted to issues@beam.apache.org by "Anonymous (Jira)" <ji...@apache.org> on 2023/04/13 11:04:00 UTC
[jira] [Work started] (BEAM-3736) Add SetUp() and TearDown() for CombineFns
[ https://issues.apache.org/jira/browse/BEAM-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on BEAM-3736 started by null.
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> Add SetUp() and TearDown() for CombineFns
> -----------------------------------------
>
> Key: BEAM-3736
> URL: https://issues.apache.org/jira/browse/BEAM-3736
> Project: Beam
> Issue Type: Improvement
> Components: beam-model, sdk-py-core
> Reporter: Chuan Yu Foo
> Priority: P3
> Time Spent: 13h
> Remaining Estimate: 0h
>
> I have a CombineFn that has a large amount of state that needs to be loaded once before it can add_input or merge_combiners (for example, the CombineFn might load up a large lookup table used for combining).
> Right now, to initialise this state, for each of the methods, I check if the state has already been initialised, and if not, I initialise it. It would be nice if CombineFn provided a SetUp() method that is called once to initialise this state (and a corresponding TearDown() method to clean up this state if necessary).
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