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https://issues.apache.org/jira/browse/HIVE-25883?focusedWorklogId=715831&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-715831
]
ASF GitHub Bot logged work on HIVE-25883:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Jan/22 17:18
Start Date: 26/Jan/22 17:18
Worklog Time Spent: 10m
Work Description: kgyrtkirk commented on a change in pull request #2971:
URL: https://github.com/apache/hive/pull/2971#discussion_r792867605
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Cleaner.java
##########
@@ -434,8 +437,18 @@ private boolean removeFiles(String location,
ValidWriteIdList writeIdList, Compa
return success;
}
- private boolean hasDataBelowWatermark(FileSystem fs, Path path, long
highWatermark) throws IOException {
- FileStatus[] children = fs.listStatus(path);
+ private boolean hasDataBelowWatermark(AcidDirectory acidDir, FileSystem fs,
Path path, long highWatermark)
+ 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)) {
Review comment:
after some thinking I convinced myself that you are right :)
* I've changed to return `true` for non-directories
** in the background these should appear as `obsolete` files anyway; so it
should not cause any real trouble in the scope of HIVE-25883; but it makes the
method live up to its name...
* since the latest patch we are checking and excluding all the dirs the
actual acid dir is using - so if we have anything below or even at the writeid
level that should be considered invalid; the `nothingToCleanAfterAbortsDelta`
testcase is a "complicated" case but the default case is similar to this with
the new checks.
pushed a new commit to update these
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Issue Time Tracking
-------------------
Worklog Id: (was: 715831)
Time Spent: 1h 40m (was: 1.5h)
> Enhance Compaction Cleaner to skip when there is nothing to do
> --------------------------------------------------------------
>
> Key: HIVE-25883
> URL: https://issues.apache.org/jira/browse/HIVE-25883
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> the cleaner works the following way:
> * it identifies obsolete directories (delta dirs ; which doesn't have open
> txns)
> * removes them and done
> if there are no obsolete directoris that is attributed to that there might be
> open txns so the request should be retried later.
> however if for some reason the directory was already cleaned - similarily it
> has no obsolete directories; and thus the request is retried for forever
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