在Ubuntu上实现HDFS（Hadoop Distributed File System）的压缩，可以遵循以下步骤：
首先，确保你的Ubuntu系统上已经安装了Hadoop和相关的依赖项。你可以使用以下命令来安装Hadoop：
sudo apt update
sudo apt install hadoop
编辑Hadoop的配置文件core-site.xml和hdfs-site.xml以启用压缩。
在core-site.xml中添加或修改以下配置：
<property>
<name>io.file.buffer.size</name>
<value>131072</value>
</property>
<property>
<name>dfs.replication</name>
<value>3</value>
</property>
<property>
<name>dfs.namenode.handler.count</name>
<value>100</value>
</property>
<property>
<name>dfs.datanode.handler.count</name>
<value>100</value>
</property>
<property>
<name>dfs.blocksize</name>
<value>134217728</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/path/to/namenode/dir</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/path/to/datanode/dir</value>
</property>
<property>
<name>dfs.namenode.checkpoint.dir</name>
<value>/path/to/checkpoint/dir</value>
</property>
<property>
<name>dfs.namenode.checkpoint.edits.dir</name>
<value>/path/to/checkpoint/edits/dir</value>
</property>
<property>
<name>dfs.namenode.http-address</name>
<value>namenode:50070</value>
</property>
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>secondarynamenode:50090</value>
</property>
<property>
<name>dfs.namenode.rpc-address</name>
<value>namenode:8020</value>
</property>
<property>
<name>dfs.namenode.datanode.registration.ip-hostname-check</name>
<value>false</value>
</property>
<property>
<name>dfs.namenode.support.append</name>
<value>true</value>
</property>
<property>
<name>dfs.namenode.fs-limits.min-block-size</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.fs-limits.max-block-size</name>
<value>134217728</value>
</property>
<property>
<name>dfs.namenode.max.transfer.threads</name>
<value>4096</value>
</property>
<property>
<name>dfs.namenode.http-keep-alive-time</name>
<value>1800000</value>
</property>
<property>
<name>dfs.namenode.http-server.max-threads</name>
<value>200</value>
</property>
<property>
<name>dfs.namenode.http-server.max-connections</name>
<value>10000</value>
</property>
<property>
<name>dfs.namenode.http-server.max-connections-per-peer</name>
<value>100</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.max</name>
<value>10</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.min</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeout</name>
<value>300000</value>
</property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeout</name>
<value>300000</value>
</property>
<property>
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idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e idle.connection reus e 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