IT/Linux(15)
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[명령어] ln, 심볼릭 링크 경로 변경
# ln -snf [Dest] [Link] -f : 기존 대상 경로 삭제 후, -s : 심볼릭 링크 생성 -n : 일반 디렉터리처럼 사용. ex) file1, file2 라는 디렉터리가 있고, 심볼릭 링크로 file -> file1 으로 구성되어 있는 상태에서 # ln -snf file2 file 를 입력하여 file -> file2 로 변경 가능.
2020.03.09 -
[Hadoop] How to solve Permission error that is occurred on the server while adding new Ambari hosts.
[Hadoop] While adding new Ambari host using automated Install, the following error occurred on the Ambari Server: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). SSH command execution finished host=MYHOSTNAME.MYDOMAIN, exitcode=255 Command end time 2020-02-11 17:57:40 ERROR: Bootstrap of host MYHOSTNAME.MYDOMAIN fails because previous action finished with non-zero exit code ..
2020.02.12 -
[Hadoop] How to troubleshoot Ambari Server error that is related to SSL that occurred on the server while adding new Ambari hosts.
[Hadoop] While adding new Ambari host using automated Install, the following error occurred on the Ambari Server: INFO 2020-02-11 13:35:08,456 NetUtil.py:60 - Connecting to https://SERVERHOSTNMAE.MYDOMAIN:8440/ca ERROR 2020-02-11 13:35:08,653 NetUtil.py:84 - [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:618) ERROR 2020-02-11 13:35:08,653 NetUtil.py:85 - SSLError: Failed to c..
2020.02.12