Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/6935#discussion_r47005658
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -430,8 +519,54 @@ private[history] class FsHistoryProvider(conf:
SparkConf, clock: Clock)
}
newIterator.foreach(addIfAbsent)
oldIterator.foreach(addIfAbsent)
+ mergedApps
+ }
+
+
+ /**
+ * Scan through all incomplete applications, and check for any that have
changed.
+ *
+ * After the scan, if there were any updated attempts, [[applications]]
is updated
+ * with the new values.
+ *
+ * 1. No attempt to replay the application is made; this scan is a low
cost operation.
+ * 2. As this overwrites [[applications]] with a new value, it must not
run concurrently
+ */
+ private[history] def scanAndUpdateIncompleteAttemptInfo(): Unit = {
+ val now = System.currentTimeMillis();
+ val newAttempts: Iterable[FsApplicationAttemptInfo] = applications
+ .filter( e => !e._2.completed)
+ .flatMap { e =>
+ // build list of (false, attempt) or (true, attempt') values
+ e._2.attempts.flatMap { attempt: FsApplicationAttemptInfo =>
+ val path = new Path(logDir, attempt.logPath)
+ try {
+ val status = fs.getFileStatus(path)
+ val size = getLogSize(status).getOrElse(-1L)
+ val aS = attempt.fileSize
+ if (size > aS) {
--- End diff --
if it should update on timestamp (even if filesizes stay the same), then
you should check timestamp here too
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