我的构建机器刚刚开始报告以下内容：
:::: ERRORS
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/tomcat/7.0.50/tomcat-7.0.50-sources.jar
SERVER ERROR: Backend is unhealthy url=http://repo1.maven.org/maven2/org/grails/plugins/tomcat/7.0.50/tomcat-7.0.50-src.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/tomcat/7.0.50/tomcat-7.0.50-javadoc.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-core/7.0.50/tomcat-embed-core-7.0.50.pom
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-core/7.0.50/tomcat-embed-core-7.0.50.jar
SERVER ERROR: Backend is unhealthy url=http://repo1.maven.org/maven2/org/apache/tomcat/tomcat-catalina-ant/7.0.50/tomcat-catalina-ant-7.0.50.pom
SERVER ERROR: Backend is unhealthy url=http://repo1.maven.org/maven2/org/apache/tomcat/tomcat-catalina-ant/7.0.50/tomcat-catalina-ant-7.0.50.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-jasper/7.0.50/tomcat-embed-jasper-7.0.50.pom
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-jasper/7.0.50/tomcat-embed-jasper-7.0.50.jar
SERVER ERROR: Backend is unhealthy url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-logging-log4j/7.0.50/tomcat-embed-logging-log4j-7.0.50.pom
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/tomcat/embed/tomcat-embed-logging-log4j/7.0.50/tomcat-embed-logging-log4j-7.0.50.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/eclipse/jdt/core/compiler/ecj/3.7.2/ecj-3.7.2.pom
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/eclipse/jdt/core/compiler/ecj/3.7.2/ecj-3.7.2.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/release/2.2.1/release-2.2.1-sources.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/release/2.2.1/release-2.2.1-src.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/release/2.2.1/release-2.2.1-javadoc.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/apache/maven/maven-ant-tasks/2.1.3/maven-ant-tasks-2.1.3.pom
SERVER ERROR: Backend is unhealthy url=http://repo1.maven.org/maven2/org/apache/maven/maven-ant-tasks/2.1.3/maven-ant-tasks-2.1.3.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/rest-client-builder/1.0.3/rest-client-builder-1.0.3-sources.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/rest-client-builder/1.0.3/rest-client-builder-1.0.3-src.jar
SERVER ERROR: Connection timed out url=http://repo1.maven.org/maven2/org/grails/plugins/rest-client-builder/1.0.3/rest-client-builder-1.0.3-javadoc.jar
我拿了那些网址并开始寻找发生的事情。服务器在这些链接上报告404。我删除了部分路径，我发现：
http://repo1.maven.org/maven2/org/grails/plugins/
这不存在。
是什么给出的？这是一个maven错误还是与Grails有关？我们是否正在经历一场将要修复的中断，或者这是我必须要告诉某人的事情？