ivanzlenko commented on code in PR #7067:
URL: https://github.com/apache/ignite-3/pull/7067#discussion_r2564748987
##########
modules/page-memory/src/main/java/org/apache/ignite/internal/pagememory/persistence/compaction/Compactor.java:
##########
@@ -388,13 +389,38 @@ void mergeDeltaFileToMainFile(
// Copy pages deltaFilePageStore -> filePageStore.
ByteBuffer buffer = getThreadLocalBuffer(pageSize);
+ DeltaFilePageStoreIo[] newerDeltaFiles =
filePageStore.getCompletedDeltaFiles()
+ .stream().filter(file -> file.fileIndex() >
deltaFilePageStore.fileIndex())
Review Comment:
```suggestion
.stream()
.filter(file -> file.fileIndex() >
deltaFilePageStore.fileIndex())
```
##########
modules/page-memory/src/main/java/org/apache/ignite/internal/pagememory/persistence/compaction/Compactor.java:
##########
@@ -388,13 +389,38 @@ void mergeDeltaFileToMainFile(
// Copy pages deltaFilePageStore -> filePageStore.
ByteBuffer buffer = getThreadLocalBuffer(pageSize);
+ DeltaFilePageStoreIo[] newerDeltaFiles =
filePageStore.getCompletedDeltaFiles()
+ .stream().filter(file -> file.fileIndex() >
deltaFilePageStore.fileIndex())
+ .toArray(DeltaFilePageStoreIo[]::new);
+
+ int[] pointers = new int[newerDeltaFiles.length];
Review Comment:
We do not need this array at all. You can use just one int for this.
##########
modules/page-memory/src/main/java/org/apache/ignite/internal/pagememory/persistence/compaction/Compactor.java:
##########
@@ -388,13 +389,38 @@ void mergeDeltaFileToMainFile(
// Copy pages deltaFilePageStore -> filePageStore.
ByteBuffer buffer = getThreadLocalBuffer(pageSize);
+ DeltaFilePageStoreIo[] newerDeltaFiles =
filePageStore.getCompletedDeltaFiles()
+ .stream().filter(file -> file.fileIndex() >
deltaFilePageStore.fileIndex())
+ .toArray(DeltaFilePageStoreIo[]::new);
+
+ int[] pointers = new int[newerDeltaFiles.length];
+
for (long pageIndex : deltaFilePageStore.pageIndexes()) {
updateHeartbeat();
if (shouldStopCompaction(filePageStore)) {
return;
}
+ boolean shouldSkip = false;
+ for (int i = 0; i < pointers.length; i++) {
Review Comment:
As soon as you'll get rid of pointer array you can replace this loop with
foreach loop
##########
modules/page-memory/src/main/java/org/apache/ignite/internal/pagememory/persistence/compaction/Compactor.java:
##########
@@ -388,13 +389,38 @@ void mergeDeltaFileToMainFile(
// Copy pages deltaFilePageStore -> filePageStore.
ByteBuffer buffer = getThreadLocalBuffer(pageSize);
+ DeltaFilePageStoreIo[] newerDeltaFiles =
filePageStore.getCompletedDeltaFiles()
+ .stream().filter(file -> file.fileIndex() >
deltaFilePageStore.fileIndex())
+ .toArray(DeltaFilePageStoreIo[]::new);
+
+ int[] pointers = new int[newerDeltaFiles.length];
+
for (long pageIndex : deltaFilePageStore.pageIndexes()) {
updateHeartbeat();
if (shouldStopCompaction(filePageStore)) {
return;
}
+ boolean shouldSkip = false;
+ for (int i = 0; i < pointers.length; i++) {
+ int[] newerPageIndexes = newerDeltaFiles[i].pageIndexes();
+
+ while (pointers[i] < newerPageIndexes.length - 1 &&
newerPageIndexes[pointers[i]] < pageIndex) {
Review Comment:
We definitely can replace this while loop with for loop and just leave loop
earlier as soon as condition is met
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