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Andy Grove commented on SPARK-29640: ------------------------------------ Installing node local dns cache daemon might be another workaround for this issue: https://github.com/kubernetes/kubernetes/issues/56903#issuecomment-511750647 > [K8S] Make it possible to set DNS option to use TCP instead of UDP > ------------------------------------------------------------------ > > Key: SPARK-29640 > URL: https://issues.apache.org/jira/browse/SPARK-29640 > Project: Spark > Issue Type: Improvement > Components: Kubernetes > Affects Versions: 2.4.4 > Reporter: Andy Grove > Priority: Major > Fix For: 2.4.5 > > > We are running into intermittent DNS issues where the Spark driver fails to > resolve "kubernetes.default.svc" and this seems to be caused by > [https://github.com/kubernetes/kubernetes/issues/76790] > One suggested workaround is to specify TCP mode for DNS lookups in the pod > spec > ([https://github.com/kubernetes/kubernetes/issues/56903#issuecomment-424498508]). > I would like the ability to provide a flag to spark-submit to specify to use > TCP mode for DNS lookups. > I am working on a PR for this. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org