flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1525) Provide utils to pass -D parameters to UDFs
Date Mon, 11 May 2015 07:55:59 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537696#comment-14537696
] 

ASF GitHub Bot commented on FLINK-1525:
---------------------------------------

Github user rmetzger commented on the pull request:

    https://github.com/apache/flink/pull/664#issuecomment-100805130
  
    In Hadoop, the `UserConfig` would probably be a `Configuration` object with key/value
pairs.
    In Flink, we are trying to get rid of these untyped maps.
    Instead, I would recommend users to use a simple java class, like
    ```java
    public static class MyConfig extends UserConfig {
      public long someLongValue;
      public int someInt;
      // this is optional
      public Map<String, String> toMap() { return null; }
    }
    ```
    It can be used in a similar way to a Configuration object, but the compiler is able to
check the types.
    
    The `ParameterUtil` is implementing the UserConfig interface to expose the configuration
values through the Flink program & in the web interface.


> Provide utils to pass -D parameters to UDFs 
> --------------------------------------------
>
>                 Key: FLINK-1525
>                 URL: https://issues.apache.org/jira/browse/FLINK-1525
>             Project: Flink
>          Issue Type: Improvement
>          Components: flink-contrib
>            Reporter: Robert Metzger
>              Labels: starter
>
> Hadoop users are used to setting job configuration through "-D" on the command line.
> Right now, Flink users have to manually parse command line arguments and pass them to
the methods.
> It would be nice to provide a standard args parser with is taking care of such stuff.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message