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Posted to dev@arrow.apache.org by "Ruslan Kuprieiev (JIRA)" <ji...@apache.org> on 2019/07/21 15:28:00 UTC

[jira] [Created] (ARROW-5995) [Python] pyarrow: hdfs: support file checksum

Ruslan Kuprieiev created ARROW-5995:
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             Summary: [Python] pyarrow: hdfs: support file checksum
                 Key: ARROW-5995
                 URL: https://issues.apache.org/jira/browse/ARROW-5995
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Ruslan Kuprieiev


I was not able to find how to retrieve checksum (`getFileChecksum` or `hadoop fs/dfs -checksum`) for a file on hdfs. Judging by how it is implemented in hadoop CLI [1], looks like we will also need to implement it manually in pyarrow. Please correct me if I'm missing something. Is this feature desirable? Or was there a good reason why it wasn't implemented already?

 [1] [https://github.com/hanborq/hadoop/blob/hadoop-hdh3u2.1/src/hdfs/org/apache/hadoop/hdfs/DFSClient.java#L719]



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