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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SQOOP-3378) Error during direct Netezza import/export can interrupt process in uncontrolled ways
Date Thu, 11 Oct 2018 09:24:00 GMT

    [ https://issues.apache.org/jira/browse/SQOOP-3378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16646179#comment-16646179

Hudson commented on SQOOP-3378:

FAILURE: Integrated in Jenkins build Sqoop-hadoop200 #1212 (See [https://builds.apache.org/job/Sqoop-hadoop200/1212/])
SQOOP-3378: Error during direct Netezza import/export can interrupt (vasas: [https://git-wip-us.apache.org/repos/asf?p=sqoop.git&a=commit&h=40f0b74c012da917c6750a0fcce1f0ae13bd5f46])
* (add) src/test/org/apache/sqoop/mapreduce/db/netezza/TestNetezzaExternalTableExportMapper.java
* (edit) src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaExternalTableImportMapper.java
* (edit) src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaExternalTableExportMapper.java
* (add) src/test/org/apache/sqoop/mapreduce/db/netezza/TestNetezzaExternalTableImportMapper.java
* (edit) src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaJDBCStatementRunner.java

> Error during direct Netezza import/export can interrupt process in uncontrolled ways
> ------------------------------------------------------------------------------------
>                 Key: SQOOP-3378
>                 URL: https://issues.apache.org/jira/browse/SQOOP-3378
>             Project: Sqoop
>          Issue Type: Bug
>    Affects Versions: 1.4.7
>            Reporter: Daniel Voros
>            Assignee: Daniel Voros
>            Priority: Major
>             Fix For: 1.5.0, 3.0.0
> SQLException during JDBC operation in direct Netezza import/export signals parent thread
to fail fast by interrupting it (see [here|https://github.com/apache/sqoop/blob/c814e58348308b05b215db427412cd6c0b21333e/src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaJDBCStatementRunner.java#L92]).
> We're [trying to process the interrupt in the parent|https://github.com/apache/sqoop/blob/c814e58348308b05b215db427412cd6c0b21333e/src/java/org/apache/sqoop/mapreduce/db/netezza/NetezzaExternalTableExportMapper.java#L232]
(main) thread, but there's no guarantee that we're not in some blocking internal call that
will process the interrupted flag and reset it before we're able to check.
> It is also possible that the parent thread has passed the "checking part" when it gets
interrupted. In case of {{NetezzaExternalTableExportMapper}} this can interrupt the upload
of log files.
> I'd recommend using some other means of communication between the threads than interrupts.

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