[jira] [Resolved] (GOBBLIN-762) Add automatic scaling for Gobblin on YARN

["Hung Tran (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GOBBLIN-762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hung Tran resolved GOBBLIN-762.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 0.15.0

Issue resolved by pull request #2626
[https://github.com/apache/incubator-gobblin/pull/2626]

> Add automatic scaling for Gobblin on YARN
> -----------------------------------------
>
>                 Key: GOBBLIN-762
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-762
>             Project: Apache Gobblin
>          Issue Type: Task
>            Reporter: Hung Tran
>            Priority: Major
>             Fix For: 0.15.0
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> Gobblin on YARN needs a way to scale up and down the containers based on the workload.
> Added `YarnAutoScalingManager` which can be started by the `GobblinApplicationMaster` by setting the `gobblin.yarn.app.master.serviceClasses` configuration. This class runs a scheduled task with a default interval of 60 seconds to detect the number of required partitions for the workflows submitted to Helix. It will request the `YarnService` to scale to a computed number of containers. If the requested number of containers is higher than the YarnService has previously requested then it will request more containers. If the requested count is less than the current number of allocated containers then it will free any unused containers.



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