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https://issues.apache.org/jira/browse/DERBY-6248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13938612#comment-13938612
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Myrna van Lunteren commented on DERBY-6248:
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I also ran with 10.9, and got two failures there, and with 10.8, and got no
failures.
But saying this does not occur with 10.8 is a big thing when it's 2 out of 100.
At this point I don't intend to backport the work-around to 10.9 or 10.8.
Instead I have been prodding the trunk source.
I am helpless with this code, but I have the following updates to Kathey's
questions:
1.a What is the actual exception on commit?
Still no idea. There seems to be no error condition on the server - at
least nothing getting logged. I looked a little at DRDAXAProtocol.java methods
that I thought might be involved (endXA, commitTransaction,
commitLocalTransaction and commitXATransaction) but none of them seem to hit
errors.
1.b Are the transaction timeout's relevant or is something else going on.
Transaction timeouts are irrelevant. I do not have them in the 'long repro'
and it still fails intermittently.
2 Why does SYNCCTL not handle the exception on commit properly and the give
the DDM error?
Because we're getting an SQLCARD and this is not part of the
NetXAConnectionReply.parseSYNCCTL method nor
NetConnectionReply.parseSYNCCTLError.
For debugging purposes, I added a case: CodePoint.SQLCARD: to
NetConnectionReply.parseSYNCCTLError, and added a line like this:
NetSqlca netSQLca = parseSQLCARD(null);
And then checked on all the values with 'get' methods of the netSQLca, but all
of them are null or 0 (except for the SqlErrp, which appears to indicate the
product id/version).
So this question becomes: why do we get an SQLCARD?
3 Why is the failure intermittent?
No idea. It doesn't seem to be related to JIT processing, for I've tried
with -Xjit:count=0 and -Xnojit and gotten intermittent failures either way.
> nightly regression test failure:
> testDerby966(org.apache.derbyTesting.functionTests.tests.jdbcapi.XATest)java.sql.SQLFeatureNotSupportedException:
> The DDM object 0x2408 is not supported. The connection has been terminated.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-6248
> URL: https://issues.apache.org/jira/browse/DERBY-6248
> Project: Derby
> Issue Type: Bug
> Components: Network Client, Network Server
> Affects Versions: 10.11.0.0
> Reporter: Mike Matrigali
> Assignee: Myrna van Lunteren
> Attachments: XALongReproD6248.java, XAReproD6248.java, derby.log,
> error-stacktrace.out
>
>
> intermittent nightly regression test failure in trunk, linux, ibm16
> only happened once in may on this machine environment.
> http://people.apache.org/~myrnavl/derby_test_results/main/linux/testlog/ibm16/1488444-suites.All_diff.txt
> There was 1 error:
> 1)
> testDerby966(org.apache.derbyTesting.functionTests.tests.jdbcapi.XATest)java.sql.SQLFeatureNotSupportedException:
> The DDM object 0x2408 is not supported. The connection has been terminated.
> at
> org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
> at org.apache.derby.client.am.SqlException.getSQLException(Unknown
> Source)
> at org.apache.derby.client.am.LogicalConnection.close(Unknown Source)
> at
> org.apache.derbyTesting.functionTests.tests.jdbcapi.XATest.testDerby966(XATest.java:1079)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
> at
> org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:117)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBareOverridable(BaseJDBCTestCase.java:439)
> at
> org.apache.derbyTesting.junit.BaseJDBCTestCase.runBare(BaseJDBCTestCase.java:456)
> at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
> at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
> at junit.extensions.TestSetup.run(TestSetup.java:25)
> at
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
> Caused by: org.apache.derby.client.am.DisconnectException: The DDM object
> 0x2408 is not supported. The connection has been terminated.
> at
> org.apache.derby.client.net.NetConnectionReply.doObjnsprmSemantics(Unknown
> Source)
> at
> org.apache.derby.client.net.NetConnectionReply.parseSYNCCTLError(Unknown
> Source)
> at
> org.apache.derby.client.net.NetXAConnectionReply.parseSYNCCTLreply(Unknown
> Source)
> at
> org.apache.derby.client.net.NetXAConnectionReply.readLocalXACommit(Unknown
> Source)
> at
> org.apache.derby.client.net.NetXAConnection.readLocalXACommit_(Unknown Source)
> at org.apache.derby.client.net.NetXAConnection.readCommit(Unknown
> Source)
> at org.apache.derby.client.net.NetConnection.readXACommit_(Unknown
> Source)
> at org.apache.derby.client.am.ClientConnection.readCommit(Unknown
> Source)
> at org.apache.derby.client.am.ClientConnection.readAutoCommit(Unknown
> Source)
> at org.apache.derby.client.am.ClientConnection.flowClose(Unknown Source)
> at org.apache.derby.client.am.ClientConnection.closeForReuse(Unknown
> Source)
> ... 49 more
> FAILURES!!!
> Tests run: 17341, Failures: 0, Errors: 1
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