If you are referring to the SSH login credentials that typed in during the installation (see screenshot), then there's no implications, the credentials are used only once to install the cloudera-manager-{agents,daemons} on the host.       ... View more

Which Impala roles do you have on that node? You can review the Impala Concepts and Architecture [1] and to make sure that you're familiar with what each deamon is for, before deleting it.   [1] http://www.cloudera.com/documentation/enterprise/latest/topics/impala_components.html#intro_components ... View more

As the service name suggest 'Sqoop 1 Client', and not a service deamon with ability to report its state weather it's started or stopped. Are you seeing any issues with using sqoop command? ... View more

how about the compiler "javac -version" ? ... View more

Can you list the JDK or javac -version ? ... View more

Does it also fail when you mvn install from the root dir?, ie:     cd /tmp git clone -b cm5-5.5.0 https://github.com/cloudera/cm_ext #not cd cm_ext/validator cd cm_ext mvn install   let me know if this helps.   [1] the cloudera-manager-schema is here https://github.com/cloudera/cm_ext/blob/cm5-5.5.0/cm-schema/pom.xml#L5-L6 [2] see "Running the Validator" https://github.com/cloudera/cm_ext/tree/cm5-5.5.0 ... View more