[infinispan-issues] [JBoss JIRA] (ISPN-3182) Compatibility mode does not work correctly in ISPN server

[Martin Gencur (JIRA)]

Martin Gencur created ISPN-3182:
-----------------------------------

             Summary: Compatibility mode does not work correctly in ISPN server
                 Key: ISPN-3182
                 URL: https://issues.jboss.org/browse/ISPN-3182
             Project: Infinispan
          Issue Type: Bug
          Components: Server
            Reporter: Martin Gencur
            Assignee: Tristan Tarrant
             Fix For: 5.3.0.Final


ISPN version: f6d1761 - Galder Zamarreño, ISPN-3062 Push JCache TCK output to screen

Using <compatibility enabled="true"> , storing an antry via HotRod, and reading it again via HotRod fails -> null is returned.

If the compatibility mode is disabled, the HotRod's get() operation returns the correct value.

The following code snippet illustrates the bug:
{code:java}
@Test
   public void testHotRodPutRestGetTest() throws Exception {
      final String key = "1";

      // 1. Put with Hot Rod
      RemoteCache<String, byte[]> remote = getHotRodCache();
      assertEquals(null, remote.withFlags(Flag.FORCE_RETURN_VALUE).put(key, "v1".getBytes()));
      assertArrayEquals("v1".getBytes(), remote.get(key));
//^^^^ --------- fails here

      // 2. Get with REST
      HttpMethod get = new GetMethod(getRestUrl() + "/" + key);
      getRestClient().executeMethod(get);
      assertEquals(HttpServletResponse.SC_OK, get.getStatusCode());
      assertEquals("v1".getBytes(), get.getResponseBody());
   }
{code}


The tests along with the example configuration file can be found at https://github.com/mgencur/infinispan-server/tree/ISPN-3176/compatibility_tests

The relevant part of TRACE log is here:
{code}
14:54:57,066 TRACE [org.infinispan.util.concurrent.locks.LockManagerImpl] (HotRodServerWorker-3) Successfully acquired lock 1!
14:54:57,066 TRACE [org.infinispan.interceptors.EntryWrappingInterceptor] (HotRodServerWorker-3) Wrapping entry '1'? true
14:54:57,066 TRACE [org.infinispan.container.EntryFactoryImpl] (HotRodServerWorker-3) Exists in context? null 
14:54:57,067 TRACE [org.infinispan.container.EntryFactoryImpl] (HotRodServerWorker-3) Retrieved from container null
14:54:57,067 TRACE [org.infinispan.container.EntryFactoryImpl] (HotRodServerWorker-3) Creating new entry.
14:54:57,069 TRACE [org.infinispan.interceptors.CallInterceptor] (HotRodServerWorker-3) Executing command: PutKeyValueCommand{key=1, value=v1, flags=[OPERATION_HOTROD], putIfAbsent=false, metadata=EmbeddedMetadata{version=ServerEntryVersion(1)}, successful=true}.
14:54:57,070 TRACE [org.infinispan.interceptors.EntryWrappingInterceptor] (HotRodServerWorker-3) About to commit entry ReadCommittedEntry(74161820){key=1, value=v1, oldValue=null, isCreated=true, isChanged=true, isRemoved=false, isValid=true}
14:54:57,071 TRACE [org.infinispan.container.entries.ReadCommittedEntry] (HotRodServerWorker-3) Updating entry (key=1 removed=false valid=true changed=true created=true loaded=false value=v1]
14:54:57,071 TRACE [org.infinispan.interceptors.EntryWrappingInterceptor] (HotRodServerWorker-3) The return value is null
14:54:57,072 TRACE [org.infinispan.util.concurrent.locks.LockManagerImpl] (HotRodServerWorker-3) Attempting to unlock 1
14:54:57,073 TRACE [org.infinispan.util.concurrent.locks.containers.ReentrantPerEntryLockContainer] (HotRodServerWorker-3) Unlocking lock instance for key 1
14:54:57,074 TRACE [org.infinispan.server.hotrod.HotRodDecoder] (HotRodServerWorker-3) Write response ResponseWithPrevious{version=12, messageId=3, operation=PutResponse, status=Success, previous=null}
14:54:57,074 TRACE [org.infinispan.server.hotrod.HotRodEncoder] (HotRodServerWorker-3) Encode msg ResponseWithPrevious{version=12, messageId=3, operation=PutResponse, status=Success, previous=null}
14:54:57,075 TRACE [org.infinispan.server.hotrod.Encoders$Encoder12$] (HotRodServerWorker-3) Write topology response header with no change
14:54:57,075 TRACE [org.infinispan.server.hotrod.HotRodEncoder] (HotRodServerWorker-3) Write buffer contents A10302000000 to channel [id: 0x6ef9bcb3, /127.0.0.1:55677 => /127.0.0.1:11222]
14:54:57,078 TRACE [org.infinispan.server.hotrod.HotRodDecoder] (HotRodServerWorker-3) Decode using instance @265b1dbd
14:54:57,078 TRACE [org.infinispan.server.hotrod.Decoder10$] (HotRodServerWorker-3) Operation code: 3 has been matched to GetRequest
14:54:57,079 TRACE [org.infinispan.server.hotrod.HotRodDecoder] (HotRodServerWorker-3) Decoded header HotRodHeader{op=GetRequest, version=12, messageId=4, cacheName=, flag=0, clientIntelligence=3, topologyId=-1}
14:54:57,079 TRACE [org.infinispan.server.hotrod.HotRodDecoder] (HotRodServerWorker-3) Decode using instance @265b1dbd
14:54:57,080 TRACE [org.infinispan.interceptors.InvocationContextInterceptor] (HotRodServerWorker-3) Invoked with command GetKeyValueCommand {key=[B0x033e0131..(4), flags=null} and InvocationContext [org.infinispan.context.SingleKeyNonTxInvocationContext at 721c2e8a]
14:54:57,080 TRACE [org.infinispan.container.EntryFactoryImpl] (HotRodServerWorker-3) Exists in context? null 
14:54:57,080 TRACE [org.infinispan.container.EntryFactoryImpl] (HotRodServerWorker-3) Retrieved from container null
14:54:57,080 TRACE [org.infinispan.interceptors.CallInterceptor] (HotRodServerWorker-3) Executing command: GetKeyValueCommand {key=[B0x033e0131..(4), flags=null}.
14:54:57,081 TRACE [org.infinispan.commands.read.GetKeyValueCommand] (HotRodServerWorker-3) Entry not found
14:54:57,081 TRACE [org.infinispan.server.hotrod.HotRodDecoder] (HotRodServerWorker-3) Write response GetResponse{version=12, messageId=4, operation=GetResponse, status=KeyDoesNotExist, data=null}
14:54:57,081 TRACE [org.infinispan.server.hotrod.HotRodEncoder] (HotRodServerWorker-3) Encode msg GetResponse{version=12, messageId=4, operation=GetResponse, status=KeyDoesNotExist, data=null}
{code}



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