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https://issues.apache.org/jira/browse/HADOOP-13200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15300964#comment-15300964
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Kai Zheng commented on HADOOP-13200:
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Copied partly [here |
https://issues.apache.org/jira/browse/HADOOP-13010?focusedCommentId=15298587&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15298587]
by [~cmccabe]:
{quote}
I think these are really configuration questions, not questions about how the
code should be structured. What does the user actually need to configure? If
the user just configures a coder implementation, does that fully determine the
codec which is being used? If so, we should have only one configuration knob--
coder. If a coder could be used for multiple codecs, then we need to have at
least two knobs that the user can configure-- one for codec, and another for
coder. Once we know what the configuration knobs are, we probably only need one
or two functions to create the objects we need based on a Configuration object,
not a whole mess of factory objects.
{quote}
> Seeking a better approach allowing to customize and configure erasure coders
> ----------------------------------------------------------------------------
>
> Key: HADOOP-13200
> URL: https://issues.apache.org/jira/browse/HADOOP-13200
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Zheng
>
> This is a follow-on task for HADOOP-13010 as discussed over there. There may
> be some better approach allowing to customize and configure erasure coders
> than the current having raw coder factory, as [~cmccabe] suggested. Will copy
> the relevant comments here to continue the discussion.
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