mattisonchao commented on code in PR #17700:
URL: https://github.com/apache/pulsar/pull/17700#discussion_r973835719
##########
pulsar-metadata/src/test/java/org/apache/pulsar/metadata/LockManagerTest.java:
##########
@@ -293,4 +296,55 @@ public void revalidateLockOnDifferentSession(String
provider, Supplier<String> u
assertEquals(new
String(store1.get(path2).join().get().getValue()), "\"value-1\"");
});
}
+
+ @Test(dataProvider = "impl")
+ public void testCleanUpStateWhenRevalidationGotLockBusy(String provider,
Supplier<String> urlSupplier)
+ throws Exception {
+
+ if (provider.equals("Memory") || provider.equals("RocksDB")) {
+ // Local memory provider doesn't really have the concept of
multiple sessions
+ return;
+ }
+
+ @Cleanup
+ MetadataStoreExtended store1 =
MetadataStoreExtended.create(urlSupplier.get(),
+ MetadataStoreConfig.builder().build());
+ @Cleanup
+ MetadataStoreExtended store2 =
MetadataStoreExtended.create(urlSupplier.get(),
+ MetadataStoreConfig.builder().build());
+
+ @Cleanup
+ CoordinationService cs1 = new CoordinationServiceImpl(store1);
+ @Cleanup
+ LockManager<String> lm1 = cs1.getLockManager(String.class);
+
+ @Cleanup
+ CoordinationService cs2 = new CoordinationServiceImpl(store2);
+ @Cleanup
+ LockManager<String> lm2 = cs2.getLockManager(String.class);
+
+ String path1 = newKey();
+
+ ResourceLock<String> lock1 = lm1.acquireLock(path1, "value-1").join();
+ AtomicReference<ResourceLock<String>> lock2 = new AtomicReference<>();
+ // lock 2 will steal the distributed lock first.
Review Comment:
When I am writing this test, I found an interesting thing. We can allow the
new lock to steal the existing lock that may hold by others(same value).
I'm not sure if it's a big problem. You can use this test to verify this
behaviour.
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