[jira] [Updated] (MESOS-2018) Dynamic Reservations

["Michael Park (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Park updated MESOS-2018:
--------------------------------
    Epic Name: Dynamic Reservations  (was: Dynamic Resource Reservations)
      Summary: Dynamic Reservations  (was: Dynamic Resource Reservations)

> Dynamic Reservations
> --------------------
>
>                 Key: MESOS-2018
>                 URL: https://issues.apache.org/jira/browse/MESOS-2018
>             Project: Mesos
>          Issue Type: Epic
>          Components: allocation, framework, master, slave
>            Reporter: Adam B
>            Assignee: Michael Park
>              Labels: offer, persistence, reservations, resource, stateful, storage
>
> This is a feature to provide better support for running stateful services on Mesos such as HDFS (Distributed Filesystem), Cassandra (Distributed Database), or MySQL (Local Database).
> Current resource reservations (henceforth called "static" reservations) are statically determined by the slave operator at slave start time, and individual frameworks have no authority to reserve resources themselves.
> Dynamic reservations allow a framework to dynamically/lazily reserve offered resources at task launch time, such that when that task completes, those resources will only be re-offered to the same framework (or other frameworks with the same role).
> This is especially useful if the framework's task stored some state on the slave, and needs a guaranteed set of resources reserved so that it can re-launch a task on the same slave to recover that state.



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