Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/1222#discussion_r18534494
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala ---
@@ -142,48 +151,56 @@ private[history] class FsHistoryProvider(conf:
SparkConf) extends ApplicationHis
* Tries to reuse as much of the data already in memory as possible, by
not reading
* applications that haven't been updated since last time the logs were
checked.
*/
- private def checkForLogs() = {
+ private[history] def checkForLogs() = {
lastLogCheckTimeMs = getMonotonicTimeMs()
logDebug("Checking for logs. Time is now
%d.".format(lastLogCheckTimeMs))
- try {
- val logStatus = fs.listStatus(new Path(resolvedLogDir))
- val logDirs = if (logStatus != null) logStatus.filter(_.isDir).toSeq
else Seq[FileStatus]()
- // 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.
+ def getModificationTime(fsEntry: FileStatus) = {
+ if (fsEntry.isDir) {
+ fs.listStatus(fsEntry.getPath).map(_.getModificationTime()).max
+ } else {
+ fsEntry.getModificationTime()
+ }
+ }
+
+ try {
var newLastModifiedTime = lastModifiedTime
- val logInfos = logDirs
- .filter { dir =>
- if (fs.isFile(new Path(dir.getPath(),
EventLoggingListener.APPLICATION_COMPLETE))) {
- val modTime = getModificationTime(dir)
+ val logInfos = fs.listStatus(new Path(logDir))
+ .filter { entry =>
--- End diff --
That makes the alignment of flatMap / sortBy really weird. Do you have an
example of what you have in mind so I can follow it? Others I have found follow
this style.
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