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Posted to jira@kafka.apache.org by GitBox <gi...@apache.org> on 2021/03/10 02:00:48 UTC
[GitHub] [kafka] dengziming commented on a change in pull request #10021: KAFKA-12205: Delete snapshots less than the snapshot at the log start
dengziming commented on a change in pull request #10021:
URL: https://github.com/apache/kafka/pull/10021#discussion_r590923649
##########
File path: raft/src/test/java/org/apache/kafka/snapshot/SnapshotsTest.java
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@@ -74,5 +79,44 @@ public void testInvalidSnapshotFilenames() {
assertEquals(Optional.empty(), Snapshots.parse(root.resolve("leader-epoch-checkpoint")));
// partition metadata
assertEquals(Optional.empty(), Snapshots.parse(root.resolve("partition.metadata")));
+ // deleted file
+ assertEquals(Optional.empty(), Snapshots.parse(root.resolve("00000000000000000000.deleted")));
+ }
+
+ @Test
+ public void testDeleteSnapshot() throws IOException {
+
+ OffsetAndEpoch snapshotId = new OffsetAndEpoch(
+ TestUtils.RANDOM.nextInt(Integer.MAX_VALUE),
+ TestUtils.RANDOM.nextInt(Integer.MAX_VALUE)
+ );
+
+ Path logDirPath = TestUtils.tempDirectory().toPath();
+ try (FileRawSnapshotWriter snapshot = FileRawSnapshotWriter.create(logDirPath, snapshotId, Optional.empty())) {
+ snapshot.freeze();
+
+ Path snapshotPath = Snapshots.snapshotPath(logDirPath, snapshotId);
+ assertTrue(Files.exists(snapshotPath));
+
+ // delete snapshot directly
+ assertTrue(Snapshots.deleteSnapshotIfExists(logDirPath, snapshot.snapshotId()));
+ assertFalse(Files.exists(snapshotPath));
+ assertFalse(Files.exists(Snapshots.deleteRename(snapshotPath, snapshotId)));
+ }
+
+ try (FileRawSnapshotWriter snapshot = FileRawSnapshotWriter.create(logDirPath, snapshotId, Optional.empty())) {
+ snapshot.freeze();
+
+ Path snapshotPath = Snapshots.snapshotPath(logDirPath, snapshotId);
+ assertTrue(Files.exists(snapshotPath));
+
+ // rename snapshot before deleting
+ Utils.atomicMoveWithFallback(snapshotPath, Snapshots.deleteRename(snapshotPath, snapshotId));
Review comment:
I'm not very clear about your meaning here, do you meaning put `rename` and `delete` into one helper method?
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