Problems with installation Hadoop on Mac OS

Question

I am trying to install hadoop on Mac os using this instruction . At this step sbin/start-dfs.sh , I have a problem. My result: Starting namenodes on [localhost] Starting datanodes localhost: datanode is running as process 26210. Stop it first. Starting secondary namenodes [https://account.jetbrains.com:443] sed: 1: "s/^/https://account.jet ...": bad flag in substitute command: '/' Starting namenodes on [localhost] Starting datanodes localhost: datanode is running as process 26210. Stop it first. Starting secondary namenodes [https://account.jetbrains.com:443] sed: 1: "s/^/https://account.jet ...": bad flag in substitute command: '/' .

What can be done about it? I really hope for your help!

hadoop-env:

#export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-13.0.1.jdk/Contents/Home 

Generated SSH key

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa 
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys 
chmod 0600 ~/.ssh/authorized_keys

/etc/hosts:

127.0.0.1   localhost 
255.255.255.255 broadcasthost 
::1             localhost 
0.0.0.0 https://account.jetbrains.com:443  
1.2.3.4 account.jetbrains.com  
1.2.3.4 http://www.jetbrains.com  
1.2.3.4 www-weighted.jetbrains.com  
0.0.0.0 account.jetbrains.com  

Maybe there is some error in /etc/hosts?

Answer 1

By default, Hadoop assumes that 0.0.0.0 will map to a local connection.

You appear to have tried to bypass JetBrains account checks by modifying your hosts file. Please revert your hosts file like this

127.0.0.1   localhost
255.255.255.255 broadcasthost
::1             localhost