[jira] [Created] (KYLIN-5263) replace log4j with logback

[zhaoliu (Jira)]

zhaoliu created KYLIN-5263:
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             Summary: replace log4j with logback
                 Key: KYLIN-5263
                 URL: https://issues.apache.org/jira/browse/KYLIN-5263
             Project: Kylin
          Issue Type: Improvement
          Components: Query Engine
    Affects Versions: v4.0.1
            Reporter: zhaoliu


在查询并发高的时候，发现线程会阻塞在日志打印处，可以使用更高效的logback替换当前的log4j.
locked org.apache.log4j.spi.RootLogger



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