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  1. EJB Client Library (AS7+)
  2. EJBCLIENT-317

Legacy EJB Client: NotOpenException: Cannot open new channel because close was initiated

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Details

    • Enhancement
    • Resolution: Done
    • Major
    • 3.0.3.Final
    • 3.0.2.Final
    • None

    Description

      The NotOpenException occurs too often.
      The cause is a race condition between the moment the channel starts sending close notifications and the moment the EJB client connection is removed from the pool (it is just removed after remoting sends the close notification).
      This exception, though, is not any indication of a bug, it is just how the code is architected for reconnection attempts, and is harmless.

      Here is an example of the exception stack trace: 

      2018/11/06 11:12:27:263 EST [INFO ][TestController] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Failing node 2 (perf20)
11:12:29,078 INFO  [org.jboss.ejb.client.remoting] (Remoting "config-based-ejb-client-endpoint" task-1) EJBCLIENT000016: Channel Channel ID fb008f94 (outbound) of Remoting connection 2a00ed12 to /10.16.90.58:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61> can no longer process messages
11:12:29,114 INFO  [org.jboss.ejb.client.remoting] (Remoting "config-based-ejb-client-endpoint" task-4) EJBCLIENT000016: Channel Channel ID 8f12f2ec (outbound) of Remoting connection 13f3f7a6 to /10.16.90.72:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61> can no longer process messages
11:12:29,132 INFO  [org.jboss.ejb.client.remoting] (Remoting "config-based-ejb-client-endpoint" task-4) EJBCLIENT000017: Received server version 3 and marshalling strategies [river]
11:12:29,132 INFO  [org.jboss.ejb.client.remoting] (ejb-client-context-tasks-1-thread-22) EJBCLIENT000013: Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@79a74a25, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@17bd8cb2,channel=jboss.ejb,nodename=perf21]} on channel Channel ID f6f6b0ba (outbound) of Remoting connection 13f3f7a6 to /10.16.90.72:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61>
11:12:29,164 INFO  [org.jboss.ejb.client.remoting] (Remoting "config-based-ejb-client-endpoint" task-3) EJBCLIENT000016: Channel Channel ID f6f6b0ba (outbound) of Remoting connection 13f3f7a6 to /10.16.90.72:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61> can no longer process messages
2018/11/06 11:12:29:180 EST [ERROR][Runner - 1922] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <java.lang.IllegalStateException: EJBCLIENT000032: Cannot retry a request which hasn't previously been completed>
        
2018/11/06 11:12:29:180 EST [ERROR][Runner - 494] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <java.lang.IllegalStateException: EJBCLIENT000032: Cannot retry a request which hasn't previously been completed>
        
2018/11/06 11:12:29:180 EST [ERROR][Runner - 969] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <java.lang.IllegalStateException: EJBCLIENT000032: Cannot retry a request which hasn't previously been completed>
        
2018/11/06 11:12:29:181 EST [INFO ][Runner - 494] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Reached treshold of 1 errors, resetting session.
2018/11/06 11:12:29:180 EST [ERROR][Runner - 1287] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <java.lang.IllegalStateException: EJBCLIENT000032: Cannot retry a request which hasn't previously been completed>
        
2018/11/06 11:12:29:180 EST [ERROR][Runner - 1761] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error getting response. <javax.ejb.EJBException: java.io.IOException: Channel Channel ID f6f6b0ba (outbound) of Remoting connection 13f3f7a6 to /10.16.90.72:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61> has been closed>
        
2018/11/06 11:12:29:181 EST [INFO ][Runner - 1287] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Reached treshold of 1 errors, resetting session.
2018/11/06 11:12:29:181 EST [INFO ][Runner - 969] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Reached treshold of 1 errors, resetting session.
2018/11/06 11:12:29:180 EST [INFO ][Runner - 1922] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Reached treshold of 1 errors, resetting session.
2018/11/06 11:12:29:181 EST [WARN ][Runner - 494] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Error sampling data:  <org.jboss.smartfrog.loaddriver.RequestProcessingException: Could not get valid response. Runner: 494.>
        
2018/11/06 11:12:29:189 EST [INFO ][Runner - 1761] HOST perf17.mw.lab.eng.bos.redhat.com:rootProcess:c - Reached treshold of 1 errors, resetting session.
11:12:29,181 INFO  [org.jboss.ejb.client.remoting] (Remoting "config-based-ejb-client-endpoint" task-1) EJBCLIENT000017: Received server version 3 and marshalling strategies [river]
11:12:29,199 INFO  [org.jboss.ejb.client.remoting] (ejb-client-context-tasks-1-thread-22) EJBCLIENT000013: Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@79a74a25, receiver=Remoting connection EJB receiver [connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection@17bd8cb2,channel=jboss.ejb,nodename=perf21]} on channel Channel ID beeb14c5 (outbound) of Remoting connection 13f3f7a6 to /10.16.90.72:8080 of endpoint "config-based-ejb-client-endpoint" <4b824c61>
2018/11/06 11:12:29:190 EST [WARN ][Runner - 494] SFCORE_LOG - Error sampling data:  <org.jboss.smartfrog.loaddriver.RequestProcessingException: Could not get valid response. Runner: 494.>
        org.jboss.smartfrog.loaddriver.RequestProcessingException: Could not get valid response. Runner: 494.
	at org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImplLegacyClient$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImplLegacyClient.java:109)
	at org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:52)
	at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:103)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: EJBCLIENT000032: Cannot retry a request which hasn't previously been completed
	at org.jboss.ejb.client.EJBClientInvocationContext.retryRequest(EJBClientInvocationContext.java:203)
	at org.jboss.ejb.client.EJBInvocationHandler.sendRequestWithPossibleRetries(EJBInvocationHandler.java:260)
	at org.jboss.ejb.client.EJBInvocationHandler.sendRequestWithPossibleRetries(EJBInvocationHandler.java:279)
	at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:202)
	at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:185)
	at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:148)
	at com.sun.proxy.$Proxy2.getSerialAndIncrement(Unknown Source)
	at org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImplLegacyClient$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImplLegacyClient.java:79)
	... 3 more

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          causes

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-15787 (7.2.z) EJB-314/EJB-317 - Legacy EJB Client: High communication fail rate during failover

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Verified

          Bug - A problem that impairs or prevents the functions of the product. WFLY-11292 Legacy EJB Client: High fail rate

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Resolved
          duplicates

          Bug - A problem that impairs or prevents the functions of the product. EJBCLIENT-136 NotOpenException: Cannot open new channel because close was initiated on server shutdown

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is caused by

          Bug - A problem that impairs or prevents the functions of the product. EJBCLIENT-318 Legacy EJB Client: race condition causes ConnectionPool to contain closing Connections

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Open

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              flaviarnn Flavia Rainone
              flaviarnn Flavia Rainone
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                Updated:
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