Increadible!!
-----邮件原件-----
发件人: Barry Fritchman (JIRA) [mailto:[email protected]]
发送时间: 2016年5月5日 2:47
收件人: [email protected]
主题: [jira] [Created] (TRAFODION-1971) Redundant initialization slows down bulk
load
Barry Fritchman created TRAFODION-1971:
------------------------------------------
Summary: Redundant initialization slows down bulk load
Key: TRAFODION-1971
URL: https://issues.apache.org/jira/browse/TRAFODION-1971
Project: Apache Trafodion
Issue Type: Bug
Components: sql-exe
Affects Versions: 2.0-incubating
Reporter: Barry Fritchman
During the preparation phase of bulk load, HFIle parameter initialization is
performed redundantly following each flush. For a 52-million row table with
fairly wide rows, a load takes 3.5 hours vs 35-40 minutes when the unnecessary
re-initialization is avoided.
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