squito commented on a change in pull request #24499: [SPARK-25888][Core] Serve
local disk persisted blocks by the external service after releasing executor by
dynamic allocation
URL: https://github.com/apache/spark/pull/24499#discussion_r282997519
##########
File path:
common/network-common/src/test/java/org/apache/spark/network/server/OneForOneStreamManagerSuite.java
##########
@@ -30,22 +31,47 @@
public class OneForOneStreamManagerSuite {
@Test
- public void managedBuffersAreFeedWhenConnectionIsClosed() throws Exception {
+ public void testMissingChunk() {
OneForOneStreamManager manager = new OneForOneStreamManager();
List<ManagedBuffer> buffers = new ArrayList<>();
TestManagedBuffer buffer1 = Mockito.spy(new TestManagedBuffer(10));
TestManagedBuffer buffer2 = Mockito.spy(new TestManagedBuffer(20));
+ TestManagedBuffer buffer3 = Mockito.spy(new TestManagedBuffer(20));
+
buffers.add(buffer1);
+ buffers.add(null);
Review comment:
please add a comment about `null`s here are to simulate a file which goes
missing before its read, just as a defensive measure.
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