sadanand48 commented on code in PR #9131:
URL: https://github.com/apache/ozone/pull/9131#discussion_r2427996251
##########
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMDbCheckpointServletInodeBasedXfer.java:
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@@ -438,6 +446,53 @@ public void testWriteDBToArchive(boolean
expectOnlySstFiles) throws Exception {
}
}
+
+ /**
+ * SCENARIO:
+ * 1. Initially: S1->S2->S3 snapshots exist, snapshotPaths = {S1, S2, S3}
+ * 2. S3 gets purged (deleted from live OM metadata)
+ * 3. Checkpoint is created (locked point-in-time state without S3)
+ * 4. Problem: Old code uses stale snapshotPaths {S1, S2, S3} from step 1
+ * 5. Solution: Re-read snapshotPaths from checkpoint = {S1, S2} (no S3)
+ * This test verifies that checkpoint metadata manager (post-fix) excludes
+ * purged snapshots, while live metadata manager (pre-fix) would include
them.
+ */
+ @Test
+ public void testSnapshotPathsReReadFromCheckpointAfterPurge() throws
Exception {
Review Comment:
purge sounded like a good test. anyway I will improve this test
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