hddong commented on a change in pull request #1558:
URL: https://github.com/apache/incubator-hudi/pull/1558#discussion_r416299956
##########
File path:
hudi-cli/src/main/java/org/apache/hudi/cli/commands/RepairsCommand.java
##########
@@ -64,11 +64,15 @@ public String deduplicate(
@CliOption(key = {"repairedOutputPath"}, help = "Location to place the
repaired files",
mandatory = true) final String repairedOutputPath,
@CliOption(key = {"sparkProperties"}, help = "Spark Properties File
Path",
- mandatory = true) final String sparkPropertiesPath)
+ mandatory = true) final String sparkPropertiesPath,
+ @CliOption(key = {"useCommitTimeForDedupe"}, help = "Set it to true if
duplicates have never been updated",
+ unspecifiedDefaultValue = "true") final boolean useCommitTimeForDedupe,
+ @CliOption(key = {"dryrun"}, help = "Should we actually add or just
print what would be done",
Review comment:
Let us modify help string of dryrun, statements are inaccurate :)
##########
File path: hudi-cli/src/main/scala/org/apache/hudi/cli/DedupeSparkJob.scala
##########
@@ -103,24 +105,51 @@ class DedupeSparkJob(basePath: String,
// Mark all files except the one with latest commits for deletion
dupeMap.foreach(rt => {
val (key, rows) = rt
- var maxCommit = -1L
-
- rows.foreach(r => {
- val c = r(3).asInstanceOf[String].toLong
- if (c > maxCommit)
- maxCommit = c
- })
-
- rows.foreach(r => {
- val c = r(3).asInstanceOf[String].toLong
- if (c != maxCommit) {
- val f = r(2).asInstanceOf[String].split("_")(0)
- if (!fileToDeleteKeyMap.contains(f)) {
- fileToDeleteKeyMap(f) = HashSet[String]()
+
+ if (useCommitTimeForDedupe) {
+ /*
+ This corresponds to the case where duplicates got created due to
INSERT and have never been updated.
+ */
+ var maxCommit = -1L
+
+ rows.foreach(r => {
+ val c = r(3).asInstanceOf[String].toLong
+ if (c > maxCommit)
+ maxCommit = c
+ })
+ rows.foreach(r => {
+ val c = r(3).asInstanceOf[String].toLong
+ if (c != maxCommit) {
+ val f = r(2).asInstanceOf[String].split("_")(0)
+ if (!fileToDeleteKeyMap.contains(f)) {
+ fileToDeleteKeyMap(f) = HashSet[String]()
+ }
+ fileToDeleteKeyMap(f).add(key)
}
- fileToDeleteKeyMap(f).add(key)
+ })
+ } else {
+ /*
+ This corresponds to the case where duplicates have been updated at
least once.
+ Once updated, duplicates are bound to have same commit time unless
forcefully modified.
+ */
+ val size = rows.size - 1
+ var i = 0
+ val loop = new Breaks
+ loop.breakable {
Review comment:
It's better not use break here, `rows.init` also can get the rows will
be delete.
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