HeartSaVioR commented on a change in pull request #26416:
[WIP][SPARK-29779][CORE] Compact old event log files and cleanup
URL: https://github.com/apache/spark/pull/26416#discussion_r343351047
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -194,6 +194,16 @@ package object config {
"configured to be at least 10 MiB.")
.createWithDefaultString("128m")
+ private[spark] val EVENT_LOG_ROLLING_MAX_FILES_TO_RETAIN =
+ ConfigBuilder("spark.eventLog.rolling.maxFilesToRetain")
+ .doc("The maximum number of event log files which will be retained as
non-compacted. " +
+ "By default, all event log files will be retained. Please set the
configuration " +
+ s"and ${EVENT_LOG_ROLLING_MAX_FILE_SIZE.key} accordingly if you want
to control " +
+ "the overall size of event log files.")
+ .intConf
+ .checkValue(_ > 0, "Max event log files to retain should be higher than
0.")
Review comment:
So we always have at least one last "original" event log - this is necessary
since the app may be running. Actually it doesn't make sense for completed app
as well - compaction will blow up everything.
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