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Posted to common-issues@hadoop.apache.org by "Jonathan Eagles (Created) (JIRA)" <ji...@apache.org> on 2012/01/18 18:02:40 UTC

[jira] [Created] (HADOOP-7980) API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor

API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor
------------------------------------------------------------------------------------

                 Key: HADOOP-7980
                 URL: https://issues.apache.org/jira/browse/HADOOP-7980
             Project: Hadoop Common
          Issue Type: Bug
          Components: io
    Affects Versions: 0.23.1
            Reporter: Jonathan Eagles


HADOOP-6835 introduced in org.apache.hadoop.io.compress.Decompressor the public int getRemaining() API. The forces custom decompressors to implement the new API in order to continue to be used.

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[jira] [Commented] (HADOOP-7980) API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor

Posted by "Jonathan Eagles (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-7980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13188553#comment-13188553 ] 

Jonathan Eagles commented on HADOOP-7980:
-----------------------------------------

Possible resolutions:

* Reimplement in such a way that new API is not needed
* Create a default definition so that only a recompile is needed
* Mark this as acceptable
                
> API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7980
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7980
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.23.1
>            Reporter: Jonathan Eagles
>
> HADOOP-6835 introduced in org.apache.hadoop.io.compress.Decompressor the public int getRemaining() API. The forces custom decompressors to implement the new API in order to continue to be used.

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[jira] [Resolved] (HADOOP-7980) API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor

Posted by "Jonathan Eagles (Resolved) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-7980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles resolved HADOOP-7980.
-------------------------------------

    Resolution: Won't Fix

@Tom's solution is an acceptable work around
                
> API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7980
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7980
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.23.1
>            Reporter: Jonathan Eagles
>
> HADOOP-6835 introduced in org.apache.hadoop.io.compress.Decompressor the public int getRemaining() API. The forces custom decompressors to implement the new API in order to continue to be used.

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[jira] [Commented] (HADOOP-7980) API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor

Posted by "Jonathan Eagles (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-7980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13188565#comment-13188565 ] 

Jonathan Eagles commented on HADOOP-7980:
-----------------------------------------

Essentially, that will be the recommended action if we mark this behavior as acceptable.

It also seems that Decompressor is an interface, preventing option 2 of providing a default definition.
                
> API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7980
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7980
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.23.1
>            Reporter: Jonathan Eagles
>
> HADOOP-6835 introduced in org.apache.hadoop.io.compress.Decompressor the public int getRemaining() API. The forces custom decompressors to implement the new API in order to continue to be used.

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[jira] [Commented] (HADOOP-7980) API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor

Posted by "Tom White (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-7980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13188557#comment-13188557 ] 

Tom White commented on HADOOP-7980:
-----------------------------------

Implementations of custom decompressors can add the new method (but not mark it with @Override) and it will work in both 1 and 0.23, I think. Would that solve your issue?
                
> API Compatibility between 0.23 and 1.0 in org.apache.hadoop.io.compress.Decompressor
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7980
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7980
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.23.1
>            Reporter: Jonathan Eagles
>
> HADOOP-6835 introduced in org.apache.hadoop.io.compress.Decompressor the public int getRemaining() API. The forces custom decompressors to implement the new API in order to continue to be used.

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