Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/1218#discussion_r16205250
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -117,84 +145,88 @@ private[history] class FsHistoryProvider(conf:
SparkConf) extends ApplicationHis
try {
val logStatus = fs.listStatus(new Path(resolvedLogDir))
val logDirs = if (logStatus != null) logStatus.filter(_.isDir).toSeq
else Seq[FileStatus]()
- val logInfos = logDirs.filter { dir =>
- fs.isFile(new Path(dir.getPath,
EventLoggingListener.APPLICATION_COMPLETE))
- }
- val currentApps = Map[String, ApplicationHistoryInfo](
- appList.map(app => app.id -> app):_*)
-
- // For any application that either (i) is not listed or (ii) has
changed since the last time
- // the listing was created (defined by the log dir's modification
time), load the app's info.
- // Otherwise just reuse what's already in memory.
- val newApps = new
mutable.ArrayBuffer[ApplicationHistoryInfo](logInfos.size)
- for (dir <- logInfos) {
- val curr = currentApps.getOrElse(dir.getPath().getName(), null)
- if (curr == null || curr.lastUpdated < getModificationTime(dir)) {
+ // Load all new logs from the log directory. Only directories that
have a modification time
+ // later than the last known log directory will be loaded.
+ var newMostRecentModTime = mostRecentLogModTime
+ val logInfos = logDirs
+ .filter { dir =>
+ if (fs.isFile(new Path(dir.getPath(),
EventLoggingListener.APPLICATION_COMPLETE))) {
+ val modTime = getModificationTime(dir)
+ newMostRecentModTime = math.max(newMostRecentModTime, modTime)
+ modTime > mostRecentLogModTime
+ } else {
+ false
+ }
+ }
+ .map { dir =>
try {
- val (app, _) = loadAppInfo(dir, renderUI = false)
- newApps += app
+ val (replayBus, appListener) = createReplayBus(dir)
+ replayBus.replay()
+ new FsApplicationHistoryInfo(
+ dir.getPath().getName(),
+ appListener.appId.getOrElse(dir.getPath().getName()),
+ appListener.appName.getOrElse(NOT_STARTED),
+ appListener.startTime.getOrElse(-1L),
+ appListener.endTime.getOrElse(-1L),
+ getModificationTime(dir),
+ appListener.sparkUser.getOrElse(NOT_STARTED))
} catch {
- case e: Exception => logError(s"Failed to load app info from
directory $dir.")
+ case e: Exception =>
+ logInfo(s"Failed to load application log data from $dir.", e)
+ null
--- End diff --
Why not just do a flat map here to filter out the nulls? Then we can make
this return `None`
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