[jira] [Resolved] (STORM-1093) Launching Workers with resources specified in resource-aware schedulers

["Zhuo Liu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhuo Liu resolved STORM-1093.
-----------------------------
    Resolution: Fixed

Merged.

> Launching Workers with resources specified in resource-aware schedulers
> -----------------------------------------------------------------------
>
>                 Key: STORM-1093
>                 URL: https://issues.apache.org/jira/browse/STORM-1093
>             Project: Apache Storm
>          Issue Type: Story
>          Components: storm-core
>            Reporter: Zhuo Liu
>            Assignee: Zhuo Liu
>
> Currently, we have Resource Aware Scheduler (STORM-894) in nimbus, which can allocate different types of resource (CPU, onheap-memory, offheap-memory) to the workers assigned to each topology's tasks.
> However, such resources are not visible to the supervisor, therefore, supervisor will still launch workers with fixed amount of heap size memory (e.g., -Xmx=768M). 
> Therefore, we need a whole set of schemes that allow nimbus to put different types of resources to each worker slot, then push the resources with assignment to ZooKeepers; also, at the supervisor side, such resources in each worker slot should be used by supervisor for launching a worker's JVM (initially, the JVM heap size).
> This scheme can be used not only by RAS scheduler (STORM-893), but also by any customized scheduler for conducting mem/cpu/network resource specified-scheduling.
> In the future, the resources of memory, CPU and network can also be used by supervisor to launch a worker in a resource-segregated container, such as a CGroup or Docker, with isolated Memory/CPU/Network resources.



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