"IllegalConfigurationException: Error while parsing YAML configuration file" Is Displayed When a Command Is Executed After Configurations of the Installed Client Are Changed

Symptom

After the client is successfully installed, an error message "IllegalConfigurationException: Error while parsing YAML configuration file: 81: "security.kerberos.login.principal:pippo " is displayed when the command (for example, yarn-session.sh) on the client is executed.

[root@8-5-131-10 bin]# yarn-session.sh
2018-10-25 19:27:01,397 | ERROR | [main] | Error while trying to split key and value in configuration file /opt/flinkclient/Flink/flink/conf/flink-conf.yaml:81: "security.kerberos.login.principal:pippo " | org.apache.flink.configuration.GlobalConfiguration (GlobalConfiguration.java:160)
Exception in thread "main" org.apache.flink.configuration.IllegalConfigurationException: Error while parsing YAML configuration file :81: "security.kerberos.login.principal:pippo "
        at org.apache.flink.configuration.GlobalConfiguration.loadYAMLResource(GlobalConfiguration.java:161)
        at org.apache.flink.configuration.GlobalConfiguration.loadConfiguration(GlobalConfiguration.java:112)
        at org.apache.flink.configuration.GlobalConfiguration.loadConfiguration(GlobalConfiguration.java:79)
        at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:482)

Cause Analysis

The security.kerberos.login.principal:pippo item in the flink-conf.yaml configuration file was faulty.

Solution

Modify the configuration in the flink-conf.yaml file.

Note: The configuration item name and value must be separated by a space.