Sqoop should only print a warning about mysql import speed once
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Key: HADOOP-5968
URL: https://issues.apache.org/jira/browse/HADOOP-5968
Project: Hadoop Core
Issue Type: Improvement
Reporter: Aaron Kimball
Assignee: Aaron Kimball
Priority: Minor
Attachments: mysql-warning.patch
After HADOOP-5844, Sqoop can use mysqldump as an alternative to JDBC for
importing from MySQL. If you use the JDBC mechanism, it prints a warning if you
could have enabled the mysqldump path instead. But the warning is printed
multiple times (every time the LocalMySQLManager is instantiated), and also
when the MySQL manager is used for informational queries (e.g., listing tables)
rather than true imports.
It should only emit the warning once per session, and only then if it's
actually doing an import.
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