dongjoon-hyun commented on a change in pull request #30046:
URL: https://github.com/apache/spark/pull/30046#discussion_r505837943
##########
File path:
core/src/test/scala/org/apache/spark/storage/BlockManagerDecommissionUnitSuite.scala
##########
@@ -161,7 +167,80 @@ class BlockManagerDecommissionUnitSuite extends
SparkFunSuite with Matchers {
.thenReturn(Seq(BlockManagerId("exec2", "host2", 12345)))
// Verify the decom manager handles this correctly
- validateDecommissionTimestamps(sparkConf, bm,
migratableShuffleBlockResolver)
+ validateDecommissionTimestamps(sparkConf, bm)
+ }
+
+ test("block decom manager does not re-add removed shuffle files") {
+ // Set up the mocks so we return one shuffle block
+ val bm = mock(classOf[BlockManager])
+ val migratableShuffleBlockResolver = mock(classOf[MigratableResolver])
+ registerShuffleBlocks(migratableShuffleBlockResolver, Set())
+ when(bm.migratableResolver).thenReturn(migratableShuffleBlockResolver)
+ when(bm.getMigratableRDDBlocks())
+ .thenReturn(Seq())
+ when(bm.getPeers(mc.any()))
+ .thenReturn(Seq(BlockManagerId("exec2", "host2", 12345)))
+ val bmDecomManager = new BlockManagerDecommissioner(sparkConf, bm)
+ bmDecomManager.migratingShuffles += ShuffleBlockInfo(10, 10)
+
+ validateDecommissionTimestampsOnManager(bmDecomManager)
+ }
+
+ test("block decom manager handles IO failures") {
+ // Set up the mocks so we return one shuffle block
+ val bm = mock(classOf[BlockManager])
+ val migratableShuffleBlockResolver = mock(classOf[MigratableResolver])
+ registerShuffleBlocks(migratableShuffleBlockResolver, Set((1, 1L, 1)))
+ when(bm.migratableResolver).thenReturn(migratableShuffleBlockResolver)
+ when(bm.getMigratableRDDBlocks())
+ .thenReturn(Seq())
+ when(bm.getPeers(mc.any()))
+ .thenReturn(Seq(BlockManagerId("exec2", "host2", 12345)))
+
+ val blockTransferService = mock(classOf[BlockTransferService])
+ // Simulate an ambiguous IO error (e.g. block could be gone, connection
failed, etc.)
+ when(blockTransferService.uploadBlockSync(
+ mc.any(), mc.any(), mc.any(), mc.any(), mc.any(), mc.any(),
mc.isNull())).thenThrow(
+ new java.io.IOException("boop")
+ )
+
+ when(bm.blockTransferService).thenReturn(blockTransferService)
+
+ // Verify the decom manager handles this correctly
+ val bmDecomManager = new BlockManagerDecommissioner(sparkConf, bm)
+ validateDecommissionTimestampsOnManager(bmDecomManager, fail = false)
+ }
+
+ test("block decom manager short circuits removed blocks") {
Review comment:
This fails, too.
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