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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5144) Intermittent "connection refused" errors in the compatibility tests
Date Tue, 22 Mar 2011 13:25:05 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009638#comment-13009638
] 

Knut Anders Hatlen commented on DERBY-5144:
-------------------------------------------

I've disabled the testing against JCC in the nightly tests for now, so that we can eliminate
that it's causing the problems. Unfortunately, one cannot disable JCC testing without also
disabling testing of the 10.0 version of the network server.

> Intermittent "connection refused" errors in the compatibility tests
> -------------------------------------------------------------------
>
>                 Key: DERBY-5144
>                 URL: https://issues.apache.org/jira/browse/DERBY-5144
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions: 10.8.0.0
>         Environment: Compatibility tests on Linux.
> Sun Java 1.5.0, 1.6.0.
>            Reporter: Knut Anders Hatlen
>
> The compatibility tests fail intermittently with connection refused errors. I've only
seen it happening on Linux so far.
> Example failures:
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/lin/902174-compatibility_diff.txt
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sles/1079439-compatibility_diff.txt
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sles/1080669-compatibility_diff.txt
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/sles/1081468-compatibility_diff.txt
> http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/lin/1083233-compatibility_diff.txt
> The stack trace always looks like this:
> Exception in thread "main" com.ibm.db2.jcc.c.SqlException: java.net.ConnectException
: Error opening socket to server localhost on port 1527 with message : Connection refused
> 	at com.ibm.db2.jcc.a.a.<init>(a.java:135)
> 	at com.ibm.db2.jcc.a.b.a(b.java:1542)
> 	at com.ibm.db2.jcc.c.o.<init>(o.java:795)
> 	at com.ibm.db2.jcc.a.b.<init>(b.java:298)
> 	at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:162)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:582)
> 	at java.sql.DriverManager.getConnection(DriverManager.java:154)
> 	at org.apache.derbyTesting.functionTests.util.DerbyJUnitTest.createDB(DerbyJUnitTest.java:416)
> 	at org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.CompatibilitySuite.access$000(CompatibilitySuite.java:41)
> 	at org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.CompatibilitySuite$Creator.main(CompatibilitySuite.java:448)
> The actual combination in which it fails varies. The reports mentioned above show failures
in these combinations:
>   jdk1.5 + server 10.1.3.1
>   jdk1.6 + server 10.1.3.1
>   jdk1.6 + server 10.5.1.1
>   jdk1.5 + server 10.0.2.1
>   jdk1.5 + server 10.7.1.1
> The client that fails is always JCC, but that's because it's always the first client
to be tested on each server version.

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