Travis最大日志大小和省略库生成日志

Question

我使用Github（https://github.com/connecta-solutions/connecta-framework）和Travis（https://travis-ci.org/connecta-solutions/connecta-framework）来托管和构建我的开源项目，该项目使用Apache Metamodel作为其依赖项之一。

我没有进行很多单元测试，但是使用Metamodel中的一个特性生成的日志是巨大的，并且传递了Travis确定的4MB日志大小，因此它会使用以下消息退出构建：

The log length has exceeded the limit of 4 MB (this usually means that the test suite is raising the same exception over and over). 

The job has been terminated 

大多数日志，我得到的是来自内部的元模型，通常给出以下输出的比较不重要的调试消息：

18:18:23.519 [main] DEBUG o.a.metamodel.util.ObjectComparator - compare(Sul,50) 
18:18:23.519 [main] INFO o.a.metamodel.util.ObjectComparator - Using ToStringComparator because no apparent better comparison method could be found 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - SUM(csv_cities.csv.vendas).hashCode() 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG o.a.metamodel.util.EqualsBuilder - append(false) 
18:18:23.519 [main] DEBUG o.a.metamodel.util.EqualsBuilder - append(true) 
18:18:23.519 [main] DEBUG o.a.metamodel.util.ObjectComparator - compare(Sul,50) 
18:18:23.519 [main] INFO o.a.metamodel.util.ObjectComparator - Using ToStringComparator because no apparent better comparison method could be found 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - SUM(csv_cities.csv.vendas).hashCode() 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is a regular object, returning hashCode 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG org.apache.metamodel.util.BaseObject - obj is null, returning constant 
18:18:23.519 [main] DEBUG o.a.metamodel.util.EqualsBuilder - append(false) 
18:18:23.519 [main] DEBUG o.a.metamodel.util.EqualsBuilder - append(true) 

理想的情况是，特拉维斯莫名其妙地接受了这个，不重要的日志可以很快成为当您遇到问题时，您很重要。无论如何，我试图减少日志级别来获得唯一的警告和错误，传递参数的log4j的这样做，是这样的：

mvn test -Dorg.slf4j.simpleLogger.defaultLogLevel=warn 

我后来才意识到是的logback是这个元模型功能日志引擎，并且我发现用Log4j中的参数来减少Logback的日志级别是不可能的。然而，我没有找到一种方法来删除logback并使用我用于整个应用程序的标准记录器，然后我可以控制它尝试输出消息的级别。

这是Travis CI的最后一个词吗？没有办法保留所有日志，即使通过4MB日志大小？

如果没有，我该如何删除Metamodel内部的这个不重要的部分？

保持在开发状态的总体日志，只是忽略它在特拉维斯构建将是完美的，但如果我不能，我可以永远忽略日志的这部分，如果没有选择。

Answer 1

尝试通过log4j.xml配置文件放置在项目的src/test/resources中来调整特定命名空间（例如整个org.apache.metamodel）的日志记录。

可以在元模型代码库中找到一个示例：https://github.com/apache/metamodel/blob/060884c17d1c5c35348d2cb675bed1c404013579/jdbc/src/test/resources/log4j.xml#L12