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在Ubuntu上实现HDFS(Hadoop Distributed File System)的压缩,可以遵循以下步骤:
1. 安装必要的软件包
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
2. 配置Hadoop以支持压缩
编辑Hadoop的配置文件core-site.xml和hdfs-site.xml以启用压缩。
core-site.xml
在core-site.xml中添加或修改以下配置:
<property>
<name>io.file.buffer.sizename>
<value>131072value>
property>
<property>
<name>dfs.replicationname>
<value>3value>
property>
<property>
<name>dfs.namenode.handler.countname>
<value>100value>
property>
<property>
<name>dfs.datanode.handler.countname>
<value>100value>
property>
<property>
<name>dfs.blocksizename>
<value>134217728value>
property>
<property>
<name>dfs.namenode.name.dirname>
<value>/path/to/namenode/dirvalue>
property>
<property>
<name>dfs.datanode.data.dirname>
<value>/path/to/datanode/dirvalue>
property>
<property>
<name>dfs.namenode.checkpoint.dirname>
<value>/path/to/checkpoint/dirvalue>
property>
<property>
<name>dfs.namenode.checkpoint.edits.dirname>
<value>/path/to/checkpoint/edits/dirvalue>
property>
<property>
<name>dfs.namenode.http-addressname>
<value>namenode:50070value>
property>
<property>
<name>dfs.namenode.secondary.http-addressname>
<value>secondarynamenode:50090value>
property>
<property>
<name>dfs.namenode.rpc-addressname>
<value>namenode:8020value>
property>
<property>
<name>dfs.namenode.datanode.registration.ip-hostname-checkname>
<value>falsevalue>
property>
<property>
<name>dfs.namenode.support.appendname>
<value>truevalue>
property>
<property>
<name>dfs.namenode.fs-limits.min-block-sizename>
<value>1value>
property>
<property>
<name>dfs.namenode.fs-limits.max-block-sizename>
<value>134217728value>
property>
<property>
<name>dfs.namenode.max.transfer.threadsname>
<value>4096value>
property>
<property>
<name>dfs.namenode.http-keep-alive-timename>
<value>1800000value>
property>
<property>
<name>dfs.namenode.http-server.max-threadsname>
<value>200value>
property>
<property>
<name>dfs.namenode.http-server.max-connectionsname>
<value>10000value>
property>
<property>
<name>dfs.namenode.http-server.max-connections-per-peername>
<value>100value>
property>
<property>
<name>dfs.namenode.http-server.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.maxname>
<value>10value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.minname>
<value>1value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.timeoutname>
<value>300000value>
property>
<property>
<name>dfs.namenode.http-server.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.timeoutname>
<value>300000value>
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.timeoutname>
<value>300000value>
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.timeoutname>
<value>300000value>
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.timeoutname>
<value>300000value>
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.timeoutname>
<value>300000value>
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 idel.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse.idle.connection.reuse idle.connection.reuse.idle.connection.reuse idle.connection.reuse idle.connection.reuse idle.connection reus e.idle.connection.reuse.idle.connection.reus e.idle.connection.reuse.idle.connection.reus e.idle.connection.reuse 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 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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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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