Derby
  1. Derby
  2. DERBY-4200

client side OutOfMemoryError running derbnetclientmats:jdbcapi/derbyStress

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 10.5.2.0
    • Component/s: Network Client, Test
    • Labels:
      None
    • Environment:
    • Urgency:
      Normal
    • Bug behavior facts:
      Crash

      Description

      On the nightly run for 4/27 - 10.5.1.2 - (769232), I saw client jdbcapi/derbystress.java run out of heap space. The test has not failed like this before on the same machine with the same JVM, and the one checkin on that day DERBY-3991 could not account for this failure.

      I will attach the javacore and heapdump. Taking a quick look at the heap dump, it seems to have a lot of client side Statement objects, which seems to be just the leak the test is checking for. Note: the test runs with 64MB heap. It would be interesting to run with other jvms and force a gc() and a heap dump at this point in the test and see if we still have a lot of Statement objects or if this is a specific platform/JVM issue.

      The trace at the time of failure was :
      1XMCURTHDINFO Current Thread Details
      NULL ----------------------
      3XMTHREADINFO "main" (TID:0x0808D300, sys_thread_t:0x0805CBC8, state:R, native ID:0x0000644F) prio=5
      4XESTACKTRACE at org/apache/derby/client/am/Cursor.allocateCharBuffer(Bytecode PC:77(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatementReply.parseSQLDTARDarray(Bytecode PC:77(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatementReply.parseQRYDSC(Bytecode PC:10(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatementReply.parseOpenQuery(Bytecode PC:104(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatementReply.parseOPNQRYreply(Bytecode PC:14(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatementReply.readOpenQuery(Bytecode PC:6(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/StatementReply.readOpenQuery(Bytecode PC:7(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/net/NetStatement.readOpenQuery_(Bytecode PC:11(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/am/Statement.readOpenQuery(Bytecode PC:6(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/am/Statement.flowExecute(Bytecode PC:581(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/am/Statement.executeQueryX(Bytecode PC:3(Compiled Code))
      4XESTACKTRACE at org/apache/derby/client/am/Statement.executeQuery(Bytecode PC:3(Compiled Code))
      4XESTACKTRACE at org/apache/derbyTesting/functionTests/tests/jdbcapi/derbyStress.testDerby3316(derbyStress.java:156)
      4XESTACKTRACE at org/apache/derbyTesting/functionTests/tests/jdbcapi/derbyStress.main(derbyStress.java:57(Compiled Code))

      1. vmware10_5_SR10HeapDump.phd
        533 kB
        Mamta A. Satoor
      2. vmware10_5_SR7HeapDump.phd
        1.30 MB
        Mamta A. Satoor
      3. windows10_5_HeapDump.phd
        334 kB
        Mamta A. Satoor
      4. heapdump.20090428.084024.25679.phd
        2.29 MB
        Kathey Marsden
      5. javacore.20090428.084024.25679.txt
        168 kB
        Kathey Marsden

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            • Assignee:
              Kathey Marsden
              Reporter:
              Kathey Marsden
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              Dates

              • Created:
                Updated:
                Resolved:

                Development