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Posted to hdfs-dev@hadoop.apache.org by "Andras Czesznak (JIRA)" <ji...@apache.org> on 2017/10/13 11:22:00 UTC

[jira] [Created] (HDFS-12654) APPEND API call is different in HTTPFS and NameNode REST

Andras Czesznak created HDFS-12654:
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             Summary: APPEND API call is different in HTTPFS and NameNode REST
                 Key: HDFS-12654
                 URL: https://issues.apache.org/jira/browse/HDFS-12654
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs, httpfs, namenode
    Affects Versions: 3.0.0-beta1, 2.8.0, 2.7.0, 2.6.0
            Reporter: Andras Czesznak


The APPEND REST API call behaves differently in the NameNode REST and the HTTPFS codes. The NameNode version creates the target file the new data being appended to if it does not exist at the time of the call issued. The HTTPFS version assumes the target file exists when APPEND is called and can append only the new data but does not create the target file it doesn't exist.

The two implementations should be standardized, preferably the HTTPFS version should be modified to execute an implicit CREATE if the target file does not exist.



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