hadoop-core的maven artifactId hadoop 2.2.0

Question

我正在将我的应用程序从hadoop 1.0.3迁移到hadoop 2.2.0,并且maven build将hadoop-core标记为依赖.因为hadoop 2.2.0不存在hadoop-core.我尝试用hadoop-client和hadoop-common替换它,但我仍然得到ant.filter的这个错误.任何人都可以建议使用哪种工件？

previous config :
<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-core</artifactId>
    <version>1.0.3</version>
</dependency>

New Config:

<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-client</artifactId>
    <version>2.2.0</version>
</dependency>

错误:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project event: Compilation failure: Compilation failure:

[ERROR] /opt/teamcity/buildAgent/work/c670ebea1992ec2f/event/src/main/java/com/intel/event/EventContext.java:[27,36] package org.apache.tools.ant.filters does not exist

[ERROR] /opt/teamcity/buildAgent/work/c670ebea1992ec2f/event/src/main/java/com/intel/event/EventContext.java:[27,36] package org.apache.tools.ant.filters does not exist

[ERROR] /opt/teamcity/buildAgent/work/c670ebea1992ec2f/event/src/main/java/com/intel/event/EventContext.java:[180,59] cannot find symbol

[ERROR] symbol: class StringInputStream

[ERROR] location: class com.intel.event.EventContext

Answer 1

我们主要依赖hdfs api来实现我们的应用.当我们迁移到hadoop 2.X时,我们惊讶地发现依赖关系的变化.我们开始一次添加一个依赖项.今天我们依赖于以下核心库.

hadoop-annotations-2.2.0
hadoop-auth-2.2.0
hadoop-common-2.2.0
hadoop-hdfs-2.2.0
hadoop-mapreduce-client-core-2.2.0

除此之外,我们也依赖于测试库.根据您的需要,您可能希望将hadoop-hdfs和hadoop-mapreduce-client与hadoop-common一起包含在依赖项中.