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Posted to commits@samza.apache.org by "Lakshmi Manasa Gaduputi (Jira)" <ji...@apache.org> on 2021/09/15 23:18:00 UTC

[jira] [Created] (SAMZA-2689) Elasticity: introduce ElasticJobModel which has SystemStreamPartitionKeyHash

Lakshmi Manasa Gaduputi created SAMZA-2689:
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             Summary: Elasticity: introduce ElasticJobModel which has SystemStreamPartitionKeyHash
                 Key: SAMZA-2689
                 URL: https://issues.apache.org/jira/browse/SAMZA-2689
             Project: Samza
          Issue Type: Sub-task
            Reporter: Lakshmi Manasa Gaduputi
            Assignee: Lakshmi Manasa Gaduputi


For a job with elasticity factor = X,  each input SystemStreamPartition is split into X parts aka SystemStreamPartitionKeyHashes. ElasticJobModel has has task models where each original task ( in the original JobModel) now has X virtual tasks each of which consumes an SSPKh pertaining to the SSP of the original task.



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