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Naganarasimha G R commented on YARN-574: ---------------------------------------- Good catch! Thanks for the comment [~jlowe], > PrivateLocalizer does not support parallel resource download via > ContainerLocalizer > ----------------------------------------------------------------------------------- > > Key: YARN-574 > URL: https://issues.apache.org/jira/browse/YARN-574 > Project: Hadoop YARN > Issue Type: Sub-task > Affects Versions: 2.6.0, 2.8.0, 2.7.1 > Reporter: Omkar Vinit Joshi > Assignee: Ajith S > Attachments: YARN-574.03.patch, YARN-574.04.patch, YARN-574.1.patch, > YARN-574.2.patch > > > At present private resources will be downloaded in parallel only if multiple > containers request the same resource. However otherwise it will be serial. > The protocol between PrivateLocalizer and ContainerLocalizer supports > multiple downloads however it is not used and only one resource is sent for > downloading at a time. > I think we can increase / assure parallelism (even for single container > requesting resource) for private/application resources by making multiple > downloads per ContainerLocalizer. > Total Parallelism before > = number of threads allotted for PublicLocalizer [public resource] + number > of containers[private and application resource] > Total Parallelism after > = number of threads allotted for PublicLocalizer [public resource] + number > of containers * max downloads per container [private and application resource] -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org