panbingkun commented on code in PR #46130:
URL: https://github.com/apache/spark/pull/46130#discussion_r1574551452
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resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/SparkRackResolver.scala:
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@@ -77,8 +78,8 @@ private[spark] class SparkRackResolver(conf: Configuration)
extends Logging {
val rNameList = dnsToSwitchMapping.resolve(hostNames.toList.asJava).asScala
if (rNameList == null || rNameList.isEmpty) {
hostNames.foreach(nodes += new NodeBase(_, NetworkTopology.DEFAULT_RACK))
- logInfo(s"Got an error when resolving hostNames. " +
- s"Falling back to ${NetworkTopology.DEFAULT_RACK} for all")
+ logInfo(log"Got an error when resolving hostNames. " +
+ log"Falling back to ${MDC(NODE_LOCATION,
NetworkTopology.DEFAULT_RACK)} for all")
Review Comment:
Based on `NodeBase(String name, String location)`, it is called
`NODE_LOCATION`
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