question Re: Ambari metrics collector and monitor is not starting in Archives of Support Questions (Read Only)

Ambari metrics collector and monitor is not starting

yasinmoha — Wed, 14 Nov 2018 04:31:23 GMT

Hi...

I have configured ambari agent with non root user hadoop. I am trying to start ambari metrics collector. but it keeps failing with the error below.

ExecutionFailed: Execution of '/usr/sbin/ambari-metrics-monitor --config /etc/ambari-metrics-monitor/conf start' returned 1. sudo: no tty present and no askpass program specified

Also I have updated the sudoers file with the below lines

# Ambari metrics commands
ams ALL=(ALL) NOPASSWD:SETENV: /usr/sbin/ambari-metrics-monitor *, /usr/sbin/ambari-metrics-collector *
hadoop ALL=(ALL) NOPASSWD:SETENV: /usr/sbin/ambari-metrics-monitor *, /usr/sbin/ambari-metrics-collector *

Still is does not work any idea which user ambari is using to start the services ?

Re: Ambari metrics collector and monitor is not starting

jsensharma — Wed, 14 Nov 2018 05:47:32 GMT

@Yasin Mohammed

AMS collector and Monitor will always as non root user "ams".

The error you are noticing because ambari agent (which seems to be running as non root user) does not have Sodoer permissions setup properly.

Please refer to the following doc and make sure that ambari agent is setup to run as non root user with the list of command mentioned in the below links:

1. https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-security/content/how_to_configure_an_ambari_agent_for_non-root.html

2. Commands - Ambari Agents : https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-security/content/commands_agent.html

3. Sudo Defaults - Ambari Agents : https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-security/content/sudo_defaults_agent.html

Re: Ambari metrics collector and monitor is not starting

yasinmoha — Wed, 14 Nov 2018 13:37:15 GMT

Hi...Jay

Thanks for the advice I missed this piece while updating the sudoers

https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-security/content/sudo_defaults_agent.html