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https://issues.apache.org/jira/browse/SQOOP-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226852#comment-14226852
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Hudson commented on SQOOP-1816:
-------------------------------
SUCCESS: Integrated in Sqoop2-hadoop200 #629 (See
[https://builds.apache.org/job/Sqoop2-hadoop200/629/])
SQOOP-1816: Sqoop2: Add logging to the test DerbyProvider implementation
(abraham:
https://git-wip-us.apache.org/repos/asf?p=sqoop.git&a=commit&h=6822e8ba3bf9bf5bdf92855298e1fa509c79b6af)
* common-test/src/main/java/org/apache/sqoop/common/test/db/DerbyProvider.java
* common-test/src/main/java/org/apache/sqoop/common/test/utils/LoggerWriter.java
> Sqoop2: Add logging to the test DerbyProvider implementation
> ------------------------------------------------------------
>
> Key: SQOOP-1816
> URL: https://issues.apache.org/jira/browse/SQOOP-1816
> Project: Sqoop
> Issue Type: Bug
> Affects Versions: 1.99.4
> Reporter: Jarek Jarcec Cecho
> Assignee: Jarek Jarcec Cecho
> Fix For: 1.99.5
>
> Attachments: SQOOP-1816.patch
>
>
> I was recently investigating why integration tests are in infinite loop on my
> machine. I've seen only a lot of repeating messages from HDFS mini cluster
> talking about heartbeats and nothing else was happening. I originally though
> that something is going on in the Hadoop minicluster.
> Looking closer at {{jstack}} dump I've noticed that the main thread is stuck
> in
> {{[DriverManager.getConnection()|https://github.com/apache/sqoop/blob/sqoop2/common-test/src/main/java/org/apache/sqoop/common/test/db/DatabaseProvider.java#L131]}},
> waiting on opening connection to testing Derby database. The Derby should
> have been [already
> started|https://github.com/apache/sqoop/blob/sqoop2/common-test/src/main/java/org/apache/sqoop/common/test/db/DerbyProvider.java#L39]
> at that point in execution, so the wait shouldn't be there. Sadly there
> weren't any logs from Derby, so It was hard to figure out what is happening.
> I've eventually triaged the issue to port 1527 being sort of used and hence
> Derby wasn't able to start properly on that port. This seems as expected
> behavior that is covered by DERBY-1465 - unsuccessful Derby start won't
> thrown an exception as anticipated, one needs to explicitly call method
> {{ping()}} to verify that the server is indeed up and running.
> Triaging this issue would be much simpler if we would be logging Derby output
> as I would get the exception that derby server can't start in the logs. Hence
> I would like to suggest to add that. It would be also helpful to explicitly
> call the {{ping()}} method to die fast rather then end up in infinite loop.
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