vanzin commented on a change in pull request #25797: [SPARK-29043][Core]
Improve the concurrent performance of History Server
URL: https://github.com/apache/spark/pull/25797#discussion_r347690131
##########
File path:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala
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@@ -797,6 +819,43 @@ private[history] class FsHistoryProvider(conf: SparkConf,
clock: Clock)
}
}
+ /**
+ * Check and delete specified event log according to the max log age defined
by the user.
+ */
+ private def checkAndCleanLog(logPath: String): Unit = Utils.tryLog {
+ val maxTime = clock.getTimeMillis() - conf.get(MAX_LOG_AGE_S) * 1000
+ val expiredLog = Try {
+ val log = listing.read(classOf[LogInfo], logPath)
+ if (log.lastProcessed < maxTime) Some(log) else None
+ } match {
+ case Success(log) => log
+ case Failure(_: NoSuchElementException) => None
+ case Failure(e) => throw e
+ }
+
+ expiredLog.foreach { log =>
+ log.appId.foreach { appId =>
+ listing.view(classOf[ApplicationInfoWrapper])
Review comment:
I'm not following. Why do you need to iterate and filter by appId instead of
just fetching the entry directly? The appId is the key.
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