有一个泛型参数

-files <comma separated list of files> specify comma separated files to be copied to the map reduce cluster

命令将是

hadoop distcp -libjars <full path to connector jar> -files /etc/hadoop/conf/gcskey.p12 -m <amount of mappers>  hdfs://<host>:<port(default 8020)>/<hdfs path> gs://<backet name>/

注1在这种情况下，我们需要在core-site.xml上设置密钥路径（google.cloud.auth.service.account.keyfile），如下例所示
注意2您需要在当前目录中有.p12密钥文件，因为haddop在启动时检查来自核心站点的路径。

<property>
    <name>fs.gs.impl</name>
    <value>com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem</value>
</property>
<property>
    <name>fs.AbstractFileSystem.gs.impl</name>
    <value>com.google.cloud.hadoop.fs.gcs.GoogleHadoopFS</value>
    <description>
        The AbstractFileSystem for gs: (GCS) uris. Only necessary for use with Hadoop 2.
    </description>
</property>
<property>
    <name>fs.gs.project.id</name>
    <value>google project id</value>
    <description>Google Project Id</description>
</property>
<property>
    <name>google.cloud.auth.service.account.enable</name>
    <value>true</value>
</property>
<property>
    <name>google.cloud.auth.service.account.email</name>
    <value>google service account email</value>
    <description>Project service account email</description>
</property>
<property>
    <name>google.cloud.auth.service.account.keyfile</name>
    <value>gcskey.p12</value>
    <description>Local path to .p12 key at each node</description>
</property>