Github user viper-kun commented on a diff in the pull request: https://github.com/apache/spark/pull/4214#discussion_r23750788 --- Diff: core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala --- @@ -53,8 +79,10 @@ private[history] class FsHistoryProvider(conf: SparkConf) extends ApplicationHis private val fs = Utils.getHadoopFileSystem(logDir, SparkHadoopUtil.get.newConfiguration(conf)) - // A timestamp of when the disk was last accessed to check for log updates - private var lastLogCheckTimeMs = -1L + // The schedule thread pool size must be one, otherwise it will have concurrent issues about fs + // and applications between check task and clean task.. --- End diff -- Sorry, i don't know what you means?
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