[ https://issues.apache.org/jira/browse/YARN-9332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lantao Jin updated YARN-9332: ----------------------------- Attachment: YARN-9332.003.patch > RackResolver tool should accept multiple hosts > ---------------------------------------------- > > Key: YARN-9332 > URL: https://issues.apache.org/jira/browse/YARN-9332 > Project: Hadoop YARN > Issue Type: Bug > Components: yarn > Affects Versions: 2.9.2, 3.0.3, 2.8.5, 2.7.7, 3.1.2 > Reporter: Lantao Jin > Assignee: Lantao Jin > Priority: Minor > Attachments: YARN-9332.001.patch, YARN-9332.002.patch, > YARN-9332.003.patch > > > RackResolver as a public rack resolver tool only offers a method {{public > static Node resolve(String hostName)}} which only accepts one host a time. > Actually the internal implementation class {{DNSToSwitchMapping}} always > accept a host list as its input and return a list of resolved racks. That's > cause the invoker like Spark takes a long time to resolve the rack info when > handling abundant tasks (a mass of loops to execute script to resolve rack > info). -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org