keith-turner commented on a change in pull request #2214:
URL: https://github.com/apache/accumulo/pull/2214#discussion_r677511639
##########
File path:
server/gc/src/main/java/org/apache/accumulo/gc/GarbageCollectionAlgorithm.java
##########
@@ -290,30 +290,26 @@ private void deleteConfirmed(GarbageCollectionEnvironment
gce,
cleanUpDeletedTableDirs(gce, candidateMap);
}
- public void collect(GarbageCollectionEnvironment gce) throws
TableNotFoundException, IOException {
-
- String lastCandidate = "";
-
- boolean outOfMemory = true;
- while (outOfMemory) {
- List<String> candidates = new ArrayList<>();
+ /**
+ * Given a sub-list of possible delection candidates, process and remove
valid deletion
+ * candidates.
+ */
+ public void collectBatch(GarbageCollectionEnvironment gce, List<String>
currentBatch)
+ throws TableNotFoundException, IOException {
- outOfMemory = getCandidates(gce, lastCandidate, candidates);
-
- if (candidates.isEmpty())
- break;
- else
- lastCandidate = candidates.get(candidates.size() - 1);
+ long origSize = currentBatch.size();
+ gce.incrementCandidatesStat(origSize);
- long origSize = candidates.size();
- gce.incrementCandidatesStat(origSize);
+ SortedMap<String,String> candidateMap = makeRelative(currentBatch);
- SortedMap<String,String> candidateMap = makeRelative(candidates);
+ confirmDeletesTrace(gce, candidateMap);
+ gce.incrementInUseStat(origSize - candidateMap.size());
- confirmDeletesTrace(gce, candidateMap);
- gce.incrementInUseStat(origSize - candidateMap.size());
+ deleteConfirmed(gce, candidateMap);
+ }
Review comment:
I suspect this is what was causing the CME in the unit test
https://github.com/apache/accumulo/blob/146b1d3d0dc2ade6f1888c9905d83e37d98aedbe/server/gc/src/test/java/org/apache/accumulo/gc/GarbageCollectionTest.java#L81
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