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https://issues.apache.org/jira/browse/AVRO-1858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717792#comment-16717792
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ASF subversion and git services commented on AVRO-1858:
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Commit 6970d2f64ab77748f895bb82b0fa6cd512a34c30 in avro's branch
refs/heads/branch-1.8 from MikeHurleySurescripts
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=6970d2f ]
AVRO-1858 add tojson head mode (#100)
* AVRO-1858: added --head option to the tojson operation
* AVRO-1858: added unit tests for tojson --head option
* AVRO-1858: head input and record counters are now longs
* AVRO-1858: added tojson --head tests for zero and negative values. Negative
head count is now an error.
> Update DataFileReadTool (tojson) to support a "head" concept
> ------------------------------------------------------------
>
> Key: AVRO-1858
> URL: https://issues.apache.org/jira/browse/AVRO-1858
> Project: Apache Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.8.1
> Reporter: Mike Hurley
> Assignee: Mike Hurley
> Priority: Major
> Fix For: 1.9.0
>
>
> It would be nice if the tojson operator supported a "head" concept in order
> to get a sampling of records in an Avro file.
> Allow specifying a maximum record count to display. If no max is given in
> head mode, use a reasonable default (like 10).
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