dongjoon-hyun commented on code in PR #43740:
URL: https://github.com/apache/spark/pull/43740#discussion_r1388624260
##########
core/src/main/scala/org/apache/spark/internal/config/Worker.scala:
##########
@@ -89,4 +89,15 @@ private[spark] object Worker {
.version("3.2.0")
.stringConf
.createWithDefaultString("PWR")
+
+ val WORKER_ID_PATTERN =
+ ConfigBuilder("spark.worker.idPattern")
+ .doc("The pattern for worker ID generation based on Java `String.format`
method. The " +
+ "default value is `worker-%s-%s-%d` which represents the existing
worker id string, e.g.," +
+ " `worker-20231109183042-[fe80::1%lo0]-39729`. Please be careful to
generate unique IDs")
+ .version("4.0.0")
+ .stringConf
+ .checkValue(!_.format("20231109000000", "host",
0).exists(_.isWhitespace),
+ "Whitespace is not allowed.")
+ .createWithDefaultString("worker-%s-%s-%d")
Review Comment:
Oh, sure! Thank you!
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