Question

当我尝试运行时

mvn clean package

我收到以下错误

Downloading: http://repo.maven.apache.org/maven2/org/apache/maven /plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
[INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary:
 [INFO] 
 [INFO] YCSB Root ......................................... FAILURE [21.334s]
 [INFO] Core YCSB ......................................... SKIPPED
 [INFO] Cassandra DB Binding .............................. SKIPPED
 [INFO] HBase DB Binding .................................. SKIPPED
 [INFO] Hypertable DB Binding ............................. SKIPPED
 [INFO] DynamoDB DB Binding ............................... SKIPPED
 [INFO] ElasticSearch Binding ............................. SKIPPED
 [INFO] Infinispan DB Binding ............................. SKIPPED
 [INFO] JDBC DB Binding ................................... SKIPPED
 [INFO] Mapkeeper DB Binding .............................. SKIPPED
 [INFO] Mongo DB Binding .................................. SKIPPED
 [INFO] OrientDB Binding .................................. SKIPPED
 [INFO] Redis DB Binding .................................. SKIPPED
 [INFO] Voldemort DB Binding .............................. SKIPPED
 [INFO] YCSB Release Distribution Builder ................. SKIPPED
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD FAILURE
 [INFO] ------------------------------------------------------------------------
 [INFO] Total time: 21.581s
 [INFO] Finished at: Sun Jun 23 14:32:40 IST 2013
 [INFO] Final Memory: 7M/238M
 [INFO] ------------------------------------------------------------------------
 [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.4.1 from/to central (http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.org refused: Connection timed out -> [Help 1]

pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/3.0.5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/3.0.5 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.yahoo.ycsb</groupId>
  <artifactId>root</artifactId>
  <version>0.1.4</version>
  <packaging>pom</packaging>

  <name>YCSB Root</name>

  <description>
    This is the top level project that builds, packages the core and all the DB bindings for YCSB infrastructure.
  </description>
  <dependencies>
    <!-- voldemort -->
    <dependency>
      <groupId>checkstyle</groupId>
      <artifactId>checkstyle</artifactId>
      <version>5.0</version>
    </dependency>
    <dependency>
      <groupId>org.jdom</groupId>
      <artifactId>jdom</artifactId>
      <version>1.1</version>
    </dependency>
    <dependency>
      <groupId>com.google.collections</groupId>
      <artifactId>google-collections</artifactId>
      <version>1.0</version>
    </dependency>
    <!--
    Nail down slf4j version to 1.6 so that it defaults to no-op logger.
    http://www.slf4j.org/codes.html#StaticLoggerBinder
    -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.6.4</version>
    </dependency>

    <dependency>
      <groupId>org.apache.hadoop</groupId>
      <artifactId>hadoop-core</artifactId>
      <version>1.0.1</version>
    </dependency>
  </dependencies>


  <!-- Properties Management -->
  <properties>
    <maven.assembly.version>2.2.1</maven.assembly.version>
    <hbase.version>0.94.3</hbase.version>
    <cassandra.version>0.7.0</cassandra.version>
    <infinispan.version>7.1.0.CR1</infinispan.version>
    <openjpa.jdbc.version>2.1.1</openjpa.jdbc.version>
    <mapkeeper.version>1.0</mapkeeper.version>
    <mongodb.version>2.9.0</mongodb.version>
    <orientdb.version>1.0.1</orientdb.version>
    <redis.version>2.0.0</redis.version>
    <voldemort.version>0.81</voldemort.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <thrift.version>0.8.0</thrift.version>
    <hypertable.version>0.9.5.6</hypertable.version>
  </properties>


  <modules>
    <!--module>build-tools</module-->
    <module>cassandra</module>
    <module>core</module>
    <module>hbase</module>
    <module>hypertable</module>
    <module>dynamodb</module>
    <module>elasticsearch</module>
    <!--<module>gemfire</module>-->
    <module>infinispan</module>
    <module>jdbc</module>
    <module>mapkeeper</module>
    <module>mongodb</module>
    <module>orientdb</module>
    <!--module>nosqldb</module-->
    <module>redis</module>
    <module>voldemort</module>
    <module>distribution</module>
  </modules>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-checkstyle-plugin</artifactId>
        <version>2.6</version>
        <configuration>
          <consoleOutput>true</consoleOutput>
          <configLocation>checkstyle.xml</configLocation>
        </configuration>
        <executions>
          <execution>
          <id>validate</id>
            <phase>validate</phase>
            <goals>
              <goal>checkstyle</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>

通过 wget http://repo.maven.apache.org ，它没有显示任何错误。任何人都可以帮助我吗？

我正在尝试运行YCSB基准测试，我收到了这个错误。

Answer 1

如错误所示，您无法连接到maven存储库：http://repo.maven.apache.org

尝试使用其他存储库details here或添加到您的pom中：

<repository>              
          <id>central</id>
          <name>Central</name>
          <url>http://repo1.maven.org/maven2</url>
</repository>

Answer 2

可以有两种可能性。

您遇到了与中央存储库的连接问题。
你的pom.xml中有问题

例外情况说，问题不在YCSB中，而是在尝试下载maven clean插件时与存储库相关联。

所以，请发送到pom.xml，以防万一检查网络连接，然后再试一次。您是否有可能使用代理通过浏览器访问互联网，而maven直接使用代理，因此连接不可用？或者公司的防火墙检查用户代理并且不允许您连接到存储库？

编辑：

Answer 3

如果您在代理服务器后面，可能会发生这种情况，请在~/.m2/settings.xml中添加代理设置并尝试。

示例：

<proxies>
    <proxy>
        <active>true</active>
        <protocol>http</protocol>
        <host>proxy host name</host>
        <port>port</port>
        <username>username</username>
        <password>password</password>
        <nonProxyHosts>exclutions</nonProxyHosts>
    </proxy>
</proxies>

Answer 4

看起来你是maven无法连接到定义的存储库来提取所需的工件。你是代理人吗？在这种情况下，您需要在maven-conf-settings.xml中配置代理设置。

Maven建筑错误

4 个答案: