[
https://issues.apache.org/jira/browse/HIVE-25977?focusedWorklogId=746553&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-746553
]
ASF GitHub Bot logged work on HIVE-25977:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Mar/22 13:19
Start Date: 23/Mar/22 13:19
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on a change in pull request #3102:
URL: https://github.com/apache/hive/pull/3102#discussion_r833256872
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Cleaner.java
##########
@@ -444,57 +444,23 @@ private boolean removeFiles(String location,
ValidWriteIdList writeIdList, Compa
// Including obsolete directories for partitioned tables can result in
data loss.
obsoleteDirs = dir.getAbortedDirectories();
}
-
- if (obsoleteDirs.isEmpty()
- && !hasDataBelowWatermark(dir, fs, path, ci.highestWriteId,
writeIdList.getHighWatermark())) {
- LOG.info(idWatermark(ci) + " nothing to remove below watermark " +
ci.highestWriteId + ", ");
- return true;
- }
StringBuilder extraDebugInfo = new
StringBuilder("[").append(obsoleteDirs.stream()
.map(Path::getName).collect(Collectors.joining(",")));
- boolean success = remove(location, ci, obsoleteDirs, true, fs,
extraDebugInfo);
+ remove(location, ci, obsoleteDirs, true, fs, extraDebugInfo);
if (dir.getObsolete().size() > 0) {
AcidMetricService.updateMetricsFromCleaner(ci.dbname, ci.tableName,
ci.partName, dir.getObsolete(), conf,
txnHandler);
}
- return success;
- }
-
- private boolean hasDataBelowWatermark(AcidDirectory acidDir, FileSystem fs,
Path path, long highWatermark,
- long minOpenTxn)
- throws IOException {
- Set<Path> acidPaths = new HashSet<>();
- for (ParsedDelta delta : acidDir.getCurrentDirectories()) {
- acidPaths.add(delta.getPath());
- }
- if (acidDir.getBaseDirectory() != null) {
- acidPaths.add(acidDir.getBaseDirectory());
- }
- FileStatus[] children = fs.listStatus(path, p -> {
- return !acidPaths.contains(p);
- });
- for (FileStatus child : children) {
- if (isFileBelowWatermark(child, highWatermark, minOpenTxn)) {
- return true;
- }
- }
- return false;
- }
-
- private boolean isFileBelowWatermark(FileStatus child, long highWatermark,
long minOpenTxn) {
- Path p = child.getPath();
- String fn = p.getName();
- if (!child.isDirectory()) {
+ // Make sure there are no leftovers below the compacted highestWriteId
+ conf.set(ValidTxnList.VALID_TXNS_KEY, new ValidReadTxnList().toString());
+ dir = AcidUtils.getAcidState(fs, path, conf,
+ new ValidReaderWriteIdList(ci.getFullTableName(), new long[0], new
BitSet(), ci.highestWriteId, Long.MAX_VALUE),
+ Ref.from(false), false, hdfsDirSnapshots);
+
+ if (dir.getObsolete().isEmpty()) {
+ LOG.info(idWatermark(ci) + " All cleared below the watermark: " +
ci.highestWriteId + " from " + location);
Review comment:
added
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Issue Time Tracking
-------------------
Worklog Id: (was: 746553)
Time Spent: 2h 50m (was: 2h 40m)
> Enhance Compaction Cleaner to skip when there is nothing to do #2
> -----------------------------------------------------------------
>
> Key: HIVE-25977
> URL: https://issues.apache.org/jira/browse/HIVE-25977
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> initially this was just an addendum to the original patch ; but got delayed
> and altered - so it should have its own ticket
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