pvargacl commented on a change in pull request #1583:
URL: https://github.com/apache/hive/pull/1583#discussion_r509315841
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File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Cleaner.java
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@@ -244,7 +249,32 @@ private void removeFiles(String location, ValidWriteIdList
writeIdList, Compacti
obsoleteDirs.addAll(dir.getAbortedDirectories());
List<Path> filesToDelete = new ArrayList<>(obsoleteDirs.size());
StringBuilder extraDebugInfo = new StringBuilder("[");
+ boolean delayedCleanupEnabled =
conf.getBoolVar(HiveConf.ConfVars.HIVE_COMPACTOR_DELAYED_CLEANUP_ENABLED);
+
for (Path stat : obsoleteDirs) {
+ if (delayedCleanupEnabled) {
+ String filename = stat.toString();
+ if (filename.startsWith(AcidUtils.BASE_PREFIX)) {
+ long writeId = AcidUtils.ParsedBase.parseBase(stat).getWriteId();
+ if (ci.type == CompactionType.MINOR) {
+ LOG.info("Skipping base dir " + stat + " as this cleanup is for
minor compaction"
+ + ", compaction id " + ci.id);
+ continue;
+ } else if (writeId > writeIdList.getHighWatermark()) {
+ LOG.info("Skipping base dir " + stat + " deletion as WriteId of
this base dir is"
+ + " greater than highWaterMark for compaction id " + ci.id);
+ continue;
+ }
+ }
+ else if (filename.startsWith(AcidUtils.DELTA_PREFIX) ||
filename.startsWith(AcidUtils.DELETE_DELTA_PREFIX)) {
+ AcidUtils.ParsedDelta delta = AcidUtils.parsedDelta(stat, fs);
Review comment:
There is a ParsedDeltaLight in AcidUtils, that is a cheaper way to parse
out the maxWriteId. This parsedDelta method will issue a FS call to check if
the delta is in raw format
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