Zhong Yanghong created KYLIN-3463:
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Summary: Improve optimize job by avoiding creating empty output
files on HDFS
Key: KYLIN-3463
URL: https://issues.apache.org/jira/browse/KYLIN-3463
Project: Kylin
Issue Type: Improvement
Reporter: Zhong Yanghong
Assignee: Zhong Yanghong
For steps in an optimize job, like {{FilterRecommendCuboidDataJob}} &
{{UpdateOldCuboidShardJob}}, {{MultipleOutputs}} is used to output data into
different directories. Therefore, the default output file is empty.
{{LazyOutputFormat}} should be used to prevent to create zero-sized default
output.
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