reswqa commented on code in PR #20796:
URL: https://github.com/apache/flink/pull/20796#discussion_r969078333
##########
flink-runtime/src/test/java/org/apache/flink/runtime/io/network/partition/hybrid/HsFileDataManagerTest.java:
##########
@@ -340,6 +341,57 @@ void testRegisterSubpartitionReaderAfterReleased() {
.hasMessageContaining("HsFileDataManager is already
released.");
}
+ /**
+ * When the result partition fails, the view lock may be obtained when the
FileDataManager lock
+ * is held. In the same time, the downstream thread will acquire the lock
of the FileDataManager
+ * when acquiring the view lock. To avoid this deadlock, the logical of
subpartition view
+ * release subpartition reader and subpartition reader fail should not be
inside lock.
+ */
+ @Test
+ void testDeadLock() throws Exception {
Review Comment:
done.
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