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lqjacklee commented on HADOOP-16543: ------------------------------------ I think something need to be changed. 1, should change IP to alias/dns name 2, should update the alias/dns name to the new IP address ( this part should be done in the k8s). > Cached DNS name resolution error > -------------------------------- > > Key: HADOOP-16543 > URL: https://issues.apache.org/jira/browse/HADOOP-16543 > Project: Hadoop Common > Issue Type: Bug > Affects Versions: 3.1.2 > Reporter: Roger Liu > Priority: Major > > In Kubernetes, the a node may go down and then come back later with a > different IP address. Yarn clients which are already running will be unable > to rediscover the node after it comes back up due to caching the original IP > address. This is problematic for cases such as Spark HA on Kubernetes, as the > node containing the resource manager may go down and come back up, meaning > existing node managers must then also be restarted. -- This message was sent by Atlassian Jira (v8.3.2#803003) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org