如何优化mvn依赖下载

Question

1. 为什么mvn在已经完成下载
时会等待其他来电

根据以下日志，maven尝试从其他存储库下载，但在第5行显示“已下载”。看起来mvn没有找到关于这个资源的任何更新，我猜这就是它报告“（0 B为0.0 KB /秒）”的原因。我不确定。原始子域隐藏在此处并显示为“xyz”或“abc”，它们实际上是Intranet上的有效子域。

Downloading: http://xyz.qa.ebay.com/content/repositories/releases/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom     
Downloading: http://xyz.qa.ebay.com/content/repositories/thirdparty/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom     
Downloading: http://abc.qa.ebay.com/nexus/content/repositories/testinfrastructure.releases/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloading: http://xyz/content/repositories/central/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloaded: http://xyz/content/repositories/central/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom (0 B at 0.0 KB/sec)
Downloading: http://repo.spring.io/ext-release-local/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloading: http://repo.spring.io/milestone/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloading: http://repo.spring.io/snapshot/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloading: http://repository.springsource.com/maven/bundles/external/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom
Downloading: https://maven.java.net/content/repositories/releases/org/glassfish/hk2/hk2-utils/2.4.0-b34/hk2-utils-2.4.0-b34.pom

1. 应用于＆lt; server＆gt;的超时配置没有被接受。 Stack overflow related issue.

<?xml version="1.0" encoding="UTF-8"?>
<settings>
<servers>
<server>
  <id>my-server</id>
  <configuration>
    <httpConfiguration>
      <all>
        <connectionTimeout>5000</connectionTimeout> <!-- milliseconds -->
        <readTimeout>20000</readTimeout>
      </all>
    </httpConfiguration>
  </configuration>
</server>
</servers>
<mirrors>
    <mirror>
        <id>central</id>
        <mirrorOf>central</mirrorOf>
        <url>http://xyzcentral/content/repositories/central</url>
    </mirror>
</mirrors>

<profiles>
    <profile>
        <id>xyz</id>
        <properties>
            <archetypeCatalog>http://xyzcentral/content/repositories/releases/archetype-catalog.xml
            </archetypeCatalog>
        </properties>
        <repositories>
            <repository>
                <id>framework.releases</id>
                <url>http://xyzcentral.qa.xyz.com/content/repositories/releases/
                </url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
            <repository>
                <id>framework.snapshots</id>
                <url>http://xyzcentral.qa.xyz.com/content/repositories/snapshots/
                </url>
                <releases>
                    <enabled>false</enabled>
                </releases>
                <snapshots>
                    <enabled>true</enabled>
                </snapshots>
            </repository>
            <repository>
                <id>framework-thirdparty</id>
                <url>http://xyzcentral.qa.xyz.com/content/repositories/thirdparty/
                </url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
            <repository>
                <id>repo1.releases</id>
                <url>http://abccentral.qa.xyz.com/nexus/content/repositories/repo1.releases/
                </url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
            <repository>
                <id>repo1.snapshots</id>
                <url>http://abccentral.qa.xyz.com/nexus/content/repositories/repo1.snapshots/
                </url>
                <releases>
                    <enabled>false</enabled>
                </releases>
                <snapshots>
                    <updatePolicy>daily</updatePolicy>
                    <enabled>true</enabled>
                </snapshots>
            </repository>
        </repositories>
        <pluginRepositories>
            <pluginRepository>
                <id>central</id>
                <url>http://xyzcentral/content/repositories/central</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </pluginRepository>
            <pluginRepository>
                <id>framework-releases</id>
                <url>http://xyzcentral/content/repositories/releases</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </pluginRepository>
            <pluginRepository>
                <id>framework-plugins</id>
                <url>http://xyzcentral/content/repositories/plugins</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </pluginRepository>
            <pluginRepository>
                <id>framework-snapshots</id>
                <url>http://xyzcentral/content/repositories/snapshots/</url>
                <releases>
                    <enabled>false</enabled>
                </releases>
                <snapshots>
                    <enabled>true</enabled>
                </snapshots>
            </pluginRepository>
            <pluginRepository>
                <id>framework-thirdparty</id>
                <url>http://xyzcentral/content/repositories/thirdparty</url>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </pluginRepository>
        </pluginRepositories>
    </profile>
</profiles>
<activeProfiles>
<activeProfile>xyz</activeProfile>
</activeProfiles>
</settings>