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https://issues.apache.org/jira/browse/BEAM-8151?focusedWorklogId=306633&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-306633
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ASF GitHub Bot logged work on BEAM-8151:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 04/Sep/19 19:10
            Start Date: 04/Sep/19 19:10
    Worklog Time Spent: 10m 
      Work Description: lukecwik commented on pull request #9477: [BEAM-8151, 
BEAM-7848] Up the max number of threads inside the SDK harness to a default of 
10k
URL: https://github.com/apache/beam/pull/9477
 
 
   Swap to using a thread pool which shrinks when threads are not being used.
   
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 306633)
    Remaining Estimate: 0h
            Time Spent: 10m

> Allow the Python SDK to use many many threads
> ---------------------------------------------
>
>                 Key: BEAM-8151
>                 URL: https://issues.apache.org/jira/browse/BEAM-8151
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core, sdk-py-harness
>            Reporter: Luke Cwik
>            Assignee: Luke Cwik
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> We need to use a thread pool which shrinks the number of active threads when 
> they are not being used.
>  
> This is to prevent any stuckness issues related to a runner scheduling more 
> work items then there are "work" threads inside the SDK harness.
>  
> By default the control plane should have all "requests" being processed in 
> parallel and the runner is responsible for not overloading the SDK with too 
> much work.



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