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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/05/02 19:44:13 UTC
[GitHub] [spark] dongjoon-hyun commented on a diff in pull request #36424: [SPARK-39083][CORE] : Fix race condition between update and clean app data
dongjoon-hyun commented on code in PR #36424:
URL: https://github.com/apache/spark/pull/36424#discussion_r863132404
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core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala:
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@@ -630,41 +630,44 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
}
private def cleanAppData(appId: String, attemptId: Option[String], logPath: String): Unit = {
- try {
- val app = load(appId)
- val (attempt, others) = app.attempts.partition(_.info.attemptId == attemptId)
-
- assert(attempt.isEmpty || attempt.size == 1)
- val isStale = attempt.headOption.exists { a =>
- if (a.logPath != new Path(logPath).getName()) {
- // If the log file name does not match, then probably the old log file was from an
- // in progress application. Just return that the app should be left alone.
- false
- } else {
- val maybeUI = synchronized {
- activeUIs.remove(appId -> attemptId)
- }
+ // SPARK-39083 prevent race condition between update and clean app data
+ listing.synchronized {
+ try {
+ val app = load(appId)
+ val (attempt, others) = app.attempts.partition(_.info.attemptId == attemptId)
+
+ assert(attempt.isEmpty || attempt.size == 1)
+ val isStale = attempt.headOption.exists { a =>
+ if (a.logPath != new Path(logPath).getName()) {
+ // If the log file name does not match, then probably the old log file was from an
+ // in progress application. Just return that the app should be left alone.
+ false
+ } else {
+ val maybeUI = synchronized {
Review Comment:
+1 for @srowen 's advice.
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