satishd commented on code in PR #11390:
URL: https://github.com/apache/kafka/pull/11390#discussion_r1047369687
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core/src/test/scala/unit/kafka/log/ProducerStateManagerTest.scala:
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@@ -741,6 +740,30 @@ class ProducerStateManagerTest {
assertEquals(Set(1), currentSnapshotOffsets)
}
+ @Test
+ def testReloadSnapshots(): Unit = {
+ val epoch = 0.toShort
+ append(stateManager, producerId, epoch, 1, 1L)
+ append(stateManager, producerId, epoch, 2, 2L)
+ stateManager.takeSnapshot()
+ val pathAndDataList = logDir.listFiles().map(file => (file.toPath,
Files.readAllBytes(file.toPath)))
+
+ append(stateManager, producerId, epoch, 3, 3L)
+ append(stateManager, producerId, epoch, 4, 4L)
+ stateManager.takeSnapshot()
+ assertEquals(2, logDir.listFiles().length)
+ assertEquals(Set(3, 5), currentSnapshotOffsets)
+
+ stateManager.truncateAndReload(3, 5, time.milliseconds())
+ assertEquals(1, logDir.listFiles().length)
+ assertEquals(Set(5), currentSnapshotOffsets)
+
+ pathAndDataList.foreach(e => Files.write(e._1, e._2))
+ stateManager.reloadSnapshots()
+ assertEquals(Some(3), stateManager.latestSnapshotOffset)
Review Comment:
Added more documentation about the test for better clarity with the latest
commit. stateManager.reloadSnapshots() deletes the existing snapshots.
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