2020-10-28 hdfs块数据传输的数据加密

操作系统：CentOS Linux release 7.4.1708 (Core)

软件：jdk-8u201-linux-x64.tar.gz、hadoop-2.7.7.tar.gz

安装：

登陆 192.168.1.17

hostnamectl set-hostname node1;mkdir /opt/namenode;mkdir /opt/datanode

vi /etc/hosts

192.168.1.17 node1

192.168.1.18 node2

tar -zxvf jdk-8u201-linux-x64.tar.gz;mv jdk1.8.0_201/ /opt/jdk

tar -zxvf hadoop-2.7.7.tar.gz;mv hadoop-2.7.7/ /opt/hadoop

vi ~/.bashrc

export JAVA_HOME=/opt/jdk

export HADOOP_HOME=/opt/hadoop

export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

source ~/.bashrc

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登陆 192.168.1.18

hostnamectl set-hostname node2;mkdir /opt/namenode;mkdir /opt/datanode

vi /etc/hosts

192.168.1.17 node1

192.168.1.18 node2

tar -zxvf jdk-8u201-linux-x64.tar.gz;mv jdk1.8.0_201/ /opt/jdk

tar -zxvf hadoop-2.7.7.tar.gz;mv hadoop-2.7.7/ /opt/hadoop

vi ~/.bashrc

export JAVA_HOME=/opt/jdk

export HADOOP_HOME=/opt/hadoop

export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

source ~/.bashrc

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修改 core-site.xml 配置

fs.defaultFS

hdfs://192.168.1.17:9000

修改 hdfs-site.xml 配置

dfs.replication

dfs.namenode.name.dir

file:///opt/namenode

dfs.datanode.data.dir

file:///opt/datanode

dfs.encrypt.data.transfer

true

dfs.encrypt.data.transfer.algorithm

3des

dfs.encrypt.data.transfer.cipher.suites

AES/CTR/NoPadding

dfs.block.access.token.enable

true

-------------------------------

登陆 192.168.1.17

hadoop-daemon.sh start namenode;hadoop-daemon.sh start datanode

登陆 192.168.1.18

hadoop-daemon.sh start datanode

-------------------------------

测试

hadoop fs -mkdir -p /user/linzw

hadoop fs -put anaconda-ks.cfg /user/linzw

备注：

如果不添加 dfs.block.access.token.enable = true，会出现如下报错。添加该配置以后，可以正常写入数据

20/10/28 21:29:12 INFO hdfs.DFSClient: Exception in createBlockOutputStream

java.io.IOException: Connection reset by peer

at sun.nio.ch.FileDispatcherImpl.read0(Native Method)

at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)

at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)

at sun.nio.ch.IOUtil.read(IOUtil.java:197)

at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)

at org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:57)

at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)

at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)

at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)

at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)

at java.io.FilterInputStream.read(FilterInputStream.java:83)

at org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2292)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1480)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1400)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:554)

20/10/28 21:29:12 INFO hdfs.DFSClient: Abandoning BP-304062021-127.0.0.1-1603891241969:blk_1073741825_1001

20/10/28 21:29:12 INFO hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[192.168.1.17:50010,DS-d431ec75-6a89-42b2-b782-7a2d224873d8,DISK]