[Hadoop Error] failed on connection exception: java.net.ConnectException: Connection refused; 오류 해결

⛔ 오류메세지

mkdir: Call From ubuntu/127.0.1.1 to localhost:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

 

✅ 해결방법: 하둡을 종료 후 재시작

# 하둡 종료
stop-all.sh

# 하둡시작
start-all.sh

 

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