Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/6935#discussion_r47552043
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -430,8 +517,55 @@ private[history] class FsHistoryProvider(conf:
SparkConf, clock: Clock)
}
newIterator.foreach(addIfAbsent)
oldIterator.foreach(addIfAbsent)
+ mergedApps
+ }
+
+
+ /**
+ * Scan through all known incomplete applications, and check for any
that have been updated.
+ *
+ * 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
+ * with the main scan for new applications. That is: it must be in the
[[checkForLogs()]]
+ * operation.
+ */
+ private[history] def scanAndUpdateIncompleteAttemptInfo(): Unit = {
+ val newAttempts: Iterable[FsApplicationAttemptInfo] = applications
+ .filter( e => !e._2.completed)
+ .flatMap { e =>
+ // build list of (false, attempt) or (true, attempt') values
--- End diff --
comment is still outdated, right? should be something like "build list of
incomplete apps that have been updated"?
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