Github user brkyvz commented on a diff in the pull request:
https://github.com/apache/spark/pull/9373#discussion_r43475449
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/util/FileBasedWriteAheadLog.scala
---
@@ -149,27 +150,26 @@ private[streaming] class FileBasedWriteAheadLog(
val oldLogFiles = synchronized { pastLogs.filter { _.endTime <
threshTime } }
logInfo(s"Attempting to clear ${oldLogFiles.size} old log files in
$logDirectory " +
s"older than $threshTime: ${oldLogFiles.map { _.path
}.mkString("\n")}")
-
- def deleteFiles() {
- oldLogFiles.foreach { logInfo =>
- try {
- val path = new Path(logInfo.path)
- val fs = HdfsUtils.getFileSystemForPath(path, hadoopConf)
- fs.delete(path, true)
- synchronized { pastLogs -= logInfo }
- logDebug(s"Cleared log file $logInfo")
- } catch {
- case ex: Exception =>
- logWarning(s"Error clearing write ahead log file $logInfo", ex)
- }
+ synchronized { pastLogs --= oldLogFiles }
--- End diff --
I have a test to make sure that even if the delete is not successful, the
recovery is robust, and will delete the file once the next cleanup request is
sent
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