Github user ArcherShao commented on a diff in the pull request:
https://github.com/apache/spark/pull/5886#discussion_r29664363
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -82,6 +77,11 @@ private[history] class FsHistoryProvider(conf:
SparkConf, clock: Clock)
// List of application logs to be deleted by event log cleaner.
private var attemptsToClean = new
mutable.ListBuffer[FsApplicationAttemptInfo]
+ // Mapping of log file names to their last modified time. This is used
to ignore logs that
+ // are older during subsequent scans, to avoid processing data that is
already known.
+ @volatile private var lastModifiedTimes: mutable.LinkedHashMap[String,
Long]
--- End diff --
Thanks for your review. I have add the logical for add entries to
`lastModifiedTimes`. Any suggestion for the type of `lastModifiedTimes`?
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