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Date: Mon, 25 Oct 2010 16:30:19 -0400 (EDT)
From: "Doug Cutting (JIRA)" <jira@apache.org>
To: dev@avro.apache.org
Subject: [jira] Commented: (AVRO-684) Java tool for altering the codec of an
 Avro data file stream.
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    [ https://issues.apache.org/jira/browse/AVRO-684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924709#action_12924709 ] 

Doug Cutting commented on AVRO-684:
-----------------------------------

The codec and deflation level might be specified with '-codec' and '-level', so that the command syntax might be:

  recodec [-codec codec] [-level level] [infile [outfile]]

> Java tool for altering the codec of an Avro data file stream.
> -------------------------------------------------------------
>
>                 Key: AVRO-684
>                 URL: https://issues.apache.org/jira/browse/AVRO-684
>             Project: Avro
>          Issue Type: New Feature
>          Components: java
>            Reporter: Patrick Linehan
>
> An example is worth a thousand words:
>   cat infile.avro | avro-tools recodec deflate - - > outfile.avro
> The above example would create a new file, "outfile.avro", with the same contents as "infile.avro".  However, the codec of "outfile.avro" would be "deflate", regardless of the codec of "infile.avro".
> Proposed features:
> * The tool should preserve any metadata present in the input file.
> * Supported codecs will be "deflate" and "null".
> * Optionally add support for specifying the deflation level, perhaps with syntax as follows:  "deflate:N" where N is the deflation level, e.g. "deflate:4".
> Does this proposal sound reasonable?

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