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From "Deepa Remesh (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1219) jdbcapi/checkDataSource.java and jdbcapi/checkDataSource30.java hang intermittently with client
Date Tue, 25 Apr 2006 21:57:03 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1219?page=comments#action_12376347 ] 

Deepa Remesh commented on DERBY-1219:
-------------------------------------

For DERBY-1148, I was trying to run checkDataSource test with client to repro the issue. I
am getting the hang reported by Kathey almost all the time. So I looked into the hang and
narrowed it down to this - The hang is occuring in ClientDataSource.getConnection method at
this line: return ClientDriver.getFactory().newNetConnection((NetLogWriter) dncLogWriter,
user, password, this, -1, false); 
It looks like it is hanging in the method NetConnection.flowServerAttributesAndKeyExchange.
I tried to capture server traces but running few times with trace on did not produce the hang
for me. I'll be working with this test some more and will update if I get any info. If anyone
else gets any clues as to what could be wrong, please post it.



> jdbcapi/checkDataSource.java and jdbcapi/checkDataSource30.java hang intermittently with
client
> -----------------------------------------------------------------------------------------------
>
>          Key: DERBY-1219
>          URL: http://issues.apache.org/jira/browse/DERBY-1219
>      Project: Derby
>         Type: Test

>   Components: Network Server, Network Client
>     Versions: 10.2.0.0
>  Environment: More often on jdk 1.5 or jdk 1.6 but hangs on jdk 1.4.2 as well
>     Reporter: Kathey Marsden
>     Priority: Minor
>  Attachments: testfiles_afterhang.zip, traces_on_hang.txt
>
> The tests checkDataSource.java and checkDataSource30.java 
> hang intermittently especially with jdk 1.5.
> Attached is the test run output and traces when the server is started separately.
> 1) Enable checkDataSource30.java by taking it out of functionTests/suites/DerbyNetClient.exclude.
> 2) Run the test with client.
> java -Dij.exceptionTrace=true -Dkeepfiles=true -Dframework=DerbyNetClient org.apache.derbyTesting.functionTests.harness.RunTest
jdbcapi/checkDataSource30.java
> Attachements:
>  testfiles_after_hang.zip - Test directory.
>  traces_on_hang.txt  - Server side traces obtained by starting the server separately
before running the test.
> I wish I had time to work on this right now as I would really like to see this valuable
test in the suite, but hopefully someone else will pick it up.

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