Radar Lei created HAWQ-560:
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Summary: Set 'output.replace-datanode-on-failure' depend on
datanodes number
Key: HAWQ-560
URL: https://issues.apache.org/jira/browse/HAWQ-560
Project: Apache HAWQ
Issue Type: New Feature
Components: Command Line Tools
Reporter: Radar Lei
Assignee: Lei Chang
Set 'output.replace-datanode-on-failure' depend on datanode number.
By default, we should set this value while hawq cluster init. To set this value
automatically, we assume segment number is the same as datanode number.
When datanodes < 4, change the default value from true to false.
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