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CDH5.8 install YARN failure:Error found before invoking supervisord: dictionary update sequence elem

CDH5.8 install YARN failure:Error found before invoking supervisord: dictionary update sequence elem

New Contributor
In the cluster Settings link, YARN service is starting nodemanager failed to start. Error information is as follows: Error found before invoking supervisord: dictionary update sequence element #93 has length 1; 2 is required. I try to execute the following command: service cloudera-scm-agent restart. but Reported wrong, this service does not exist. I am using the offline installation, CDH installation directory is located in the /opt directory. I can only execute the following command: /opt/cm-5.8.1/etc/init.d/cloudera-scm-agent start. please help me! I am very anxious!Thanks very much!
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