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https://issues.apache.org/jira/browse/FLINK-7221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111305#comment-16111305
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ASF GitHub Bot commented on FLINK-7221:
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Github user kgeis commented on the issue:
https://github.com/apache/flink/pull/4459
(I filed FLINK-7221). Thanks for putting this together. I've reviewed the
change and have no criticism.
> JDBCOutputFormat swallows errors on last batch
> ----------------------------------------------
>
> Key: FLINK-7221
> URL: https://issues.apache.org/jira/browse/FLINK-7221
> Project: Flink
> Issue Type: Bug
> Components: Batch Connectors and Input/Output Formats
> Affects Versions: 1.3.1
> Environment: Java 1.8.0_131, PostgreSQL driver 42.1.3
> Reporter: Ken Geis
> Assignee: Fabian Hueske
>
> I have a data set with ~17000 rows that I was trying to write to a PostgreSQL
> table that I did not (yet) have permission on. No data was loaded, and Flink
> did not report any problem outputting the data set. The only indication I
> found of my problem was in the PostgreSQL log.
> With the default parallelism (8) and the default batch interval (5000), my
> batches were ~2000 rows each, so they were never executed in
> {{JDBCOutputFormat.writeRecord(..)}}. {{JDBCOutputFormat.close()}} does a
> final call on {{upload.executeBatch()}}, but if there is a problem, it is
> logged at INFO level and not rethrown.
> If I decrease the batch interval to 100 or 1000, then an error is properly
> reported.
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