dongjoon-hyun commented on code in PR #41709:
URL: https://github.com/apache/spark/pull/41709#discussion_r1239338499
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core/src/main/scala/org/apache/spark/util/Utils.scala:
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@@ -2287,6 +2287,22 @@ private[spark] object Utils extends Logging with
SparkClassUtils {
}.map(threadInfoToThreadStackTrace)
}
+ /** Return a heap dump. Used to capture dumps for the web UI */
+ def getHeapHistogram(): Array[String] = {
+ val pid = String.valueOf(ProcessHandle.current().pid())
+ val builder = new ProcessBuilder("jmap", "-histo:live", pid)
Review Comment:
I took a look at `executeAndGetOutput`, but it's the same. It throws
`SparkException` instead of get the error back.
https://github.com/apache/spark/blob/7398e93a2be226d0e71af5b632fa640b37ea5e43/core/src/main/scala/org/apache/spark/util/Utils.scala#L1378-L1381
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