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Posted to dev@avro.apache.org by "Holger Fleischmann (JIRA)" <ji...@apache.org> on 2018/12/19 09:28:00 UTC

[jira] [Created] (AVRO-2286) DataFileReader leaks file descriptor on exception during construction

Holger Fleischmann created AVRO-2286:
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             Summary: DataFileReader leaks file descriptor on exception during construction
                 Key: AVRO-2286
                 URL: https://issues.apache.org/jira/browse/AVRO-2286
             Project: Apache Avro
          Issue Type: Bug
          Components: java
    Affects Versions: 1.8.2
            Reporter: Holger Fleischmann
         Attachments: DataFileReaderCloseBug.java

The constructor {{DataFileReader(File, DatumReader)}} does not close the already opened file again when it throws an exception. This leads to a leaked file descriptor and especially to not being able to delete the still open invalid file then.

This case is important when Avro files may be truncated on write, e.g. due to a hard shutdown, and the application must be able to recover from such a situation on the next restart.

Please see the attached file {{DataFileReaderCloseBug.java}} to reproduce the problem.

I did not find that problem in Jira/mailing lists. Thanks for your help in advance :)



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