nfsantos commented on code in PR #2574:
URL: https://github.com/apache/jackrabbit-oak/pull/2574#discussion_r2428004625
##########
oak-segment-azure/src/main/java/org/apache/jackrabbit/oak/segment/azure/AzureArchiveManager.java:
##########
@@ -91,16 +94,21 @@ public List<String> listArchives() throws IOException {
.filter(blobName -> blobName.endsWith(".tar"))
.collect(Collectors.toList());
- Iterator<String> it = archiveNames.iterator();
- while (it.hasNext()) {
- String archiveName = it.next();
- if (deleteInProgress(archiveName)) {
- if (writeAccessController.isWritingAllowed()) {
- delete(archiveName);
- }
- it.remove();
- }
- }
+ Set<String> archivesToDelete = ForkJoinUtils.invokeInCustomPool(
+ "AzureArchiveManager-deleted-archive-handler",
+ Math.min(64, Math.max(1, archiveNames.size())),
+ () -> archiveNames.stream()
+ .parallel()
+ .filter(this::deleteInProgress)
+ .peek(archiveName -> {
+ if (writeAccessController.isWritingAllowed()) {
+ delete(archiveName);
+ }
+ })
+ .collect(Collectors.toUnmodifiableSet()));
+
+ archiveNames.removeAll(archivesToDelete);
Review Comment:
What about something like the snippet below? It avoids calling peek, which I
feel is not intended for this type of situations. And it also checks only once
if writing is allowed. The code is likely not syntactically valid, I did not
check it on a IDE.
```suggestion
() -> archiveNames.stream()
.parallel() // Maybe not needed if
deleteInProgress is fast?
.filter(this::deleteInProgress)
.collect(Collectors.toUnmodifiableSet()));
if (writeAccessController.isWritingAllowed()) {
archiveNames.stream().parallel().forEach(archiveName ->
delete(archiveName));
}
archiveNames.removeAll(archivesToDelete);
```
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