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Posted to issues@flink.apache.org by "Sihua Zhou (JIRA)" <ji...@apache.org> on 2018/05/09 16:32:00 UTC

[jira] [Created] (FLINK-9325) generate the _meta file only when the writing is totally successful

Sihua Zhou created FLINK-9325:
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             Summary: generate the _meta file only when the writing is totally successful
                 Key: FLINK-9325
                 URL: https://issues.apache.org/jira/browse/FLINK-9325
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
    Affects Versions: 1.5.0
            Reporter: Sihua Zhou
            Assignee: Sihua Zhou


We should generate the _meta file for checkpoint only when the writing is totally successful. We should write the metadata file first to a temp file and then atomically rename it (with an equivalent workaround for S3). 



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