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  1. Derby
  2. DERBY-300

Creation of SQLWarning on a getConnection causes hang on 131 vms when server and client are in same vm.

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Trivial
    • Resolution: Won't Fix
    • Affects Version/s: 10.1.1.0
    • Fix Version/s: None
    • Component/s: JDBC
    • Labels:
      None
    • Environment:
      seems to occur on 131 vms, hang seen on both sun 1.3.1 and ibm 1.3.1

      Description

      Problem - with 131 vms, if server and client are in the same jvm, on a second get connection with create=true attribute in the url, there is a hang.

      Basically,
      – the first getConnection works ok
      – but on the second getConnection, a SQLWarning needs to be generated to say that the database already exists and in this scenario, it seems like at the point where it is creating a SQLWarning , there is a deadlock. The call to SQLWarning constructor does not return. On doing a java core dump , the thread in question seems to be in a wait state (conditional wait). Guess is it has to do with the driver manager lock

      Also note, this problem is observed only with 131 vms, so I guess it was fixed in the later vms (1.4.1, 1.4.2 1.5)

      Opened this entry to keep track of this.

        Attachments

        1. testNS.java
          3 kB
          Sunitha Kambhampati

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              skambha Sunitha Kambhampati
            • Votes:
              1 Vote for this issue
              Watchers:
              0 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: