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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2018/02/15 13:25:00 UTC

[jira] [Created] (HADOOP-15239) S3ABlockOutputStream.flush() be no-op when stream closed

Steve Loughran created HADOOP-15239:
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             Summary: S3ABlockOutputStream.flush() be no-op when stream closed
                 Key: HADOOP-15239
                 URL: https://issues.apache.org/jira/browse/HADOOP-15239
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 3.0.0, 2.7.5, 2.8.3, 2.9.0
            Reporter: Steve Loughran


when you call flush() on a closed S3A output stream, you get a stack trace. 

This can cause problems in code with race conditions across threads, e.g. FLINK-8543. 

we could make it log@warn "stream closed" rather than raise an IOE. It's just a hint, after all.



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