[jira] Created: (HIVE-1649) Ability to update counters and status from TRANSFORM scripts

["Carl Steinbach (JIRA)" <ji...@apache.org>]

Ability to update counters and status from TRANSFORM scripts
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                 Key: HIVE-1649
                 URL: https://issues.apache.org/jira/browse/HIVE-1649
             Project: Hadoop Hive
          Issue Type: New Feature
          Components: Query Processor
            Reporter: Carl Steinbach


Hadoop Streaming supports the ability to update counters and status by writing specially coded messages to the script's stderr stream.

A streaming process can use the stderr to emit counter information. {{reporter:counter:<group>,<counter>,<amount>}} should be sent to stderr to update the counter.
A streaming process can use the stderr to emit status information. To set a status, {{reporter:status:<message>}} should be sent to stderr.

Hive should support these same features with its TRANSFORM mechanism.

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