Uploaded image for project: 'Spring Web Flow'
  1. Spring Web Flow
  2. SWF-1524

LockTimeoutException occurring for a Single request transaction

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Invalid
    • Affects Version/s: 2.0.9
    • Fix Version/s: None
    • Component/s: Core: Flow Executor
    • Labels:
      None

      Description

      In the production environment, we have been facing a lot of LockTimeoutException: Unable to acquire conversation lock after 30 seconds. We have already tried increasing the time out value to 60 seconds but it doesn't seem to help.The basic problem is we are unable to identify why actually the lock is occurring. There are few case we have found as application issue and we have fixed those. But some of them it is not at all clear why the lock is happening,when there is a single request to the application server. Also, it some times happen on accessing the home page itself.

      Is there a way to put a identify the activity for which lock has been put in place ?

      I have already referred to below listed jira for the this issue.
      Related JIRA:
      https://jira.springsource.org/browse/SWF-1059
      https://jira.springsource.org/browse/SWF-1107
      https://jira.springsource.org/browse/SWF-1213

      Exception Stack Trace,

      org.springframework.webflow.conversation.impl.LockTimeoutException: Unable to acquire conversation lock after 30 seconds
      at org.springframework.webflow.conversation.impl.JdkConcurrentConversationLock.lock(JdkConcurrentConversationLock.java:44)
      at org.springframework.webflow.conversation.impl.ContainedConversation.lock(ContainedConversation.java:69)
      at org.springframework.webflow.execution.repository.support.ConversationBackedFlowExecutionLock.lock(ConversationBackedFlowExecutionLock.java:51)
      at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:166)
      at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183)
      at org.springframework.webflow.mvc.servlet.FlowController.handleRequest(FlowController.java:174)
      at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
      at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)

        Attachments

          Activity

            People

            Assignee:
            rstoya05-aop Rossen Stoyanchev
            Reporter:
            kunal_jha Kunal Balajee Jha
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved: