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Posted to commits@airflow.apache.org by "Adrian Bridgett (JIRA)" <ji...@apache.org> on 2017/07/26 14:57:00 UTC

[jira] [Created] (AIRFLOW-1467) allow tasks to use more than one pool slot

Adrian Bridgett created AIRFLOW-1467:
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             Summary: allow tasks to use more than one pool slot
                 Key: AIRFLOW-1467
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1467
             Project: Apache Airflow
          Issue Type: Improvement
          Components: pools
            Reporter: Adrian Bridgett
            Priority: Trivial


It would be useful to have tasks use more than a single pool slot. 

Our use case is actually to limit how many tasks run on a head node (due to memory constraints), currently we have to set a pool limit limiting how many tasks.

Ideally we could set the pool size to e.g amount of memory and then set those tasks pool_usage (or whatever the option would be called) to the amount of memory we think they'll use.  This way the pool would let lots of small tasks run or just a few large tasks.



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