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Can not see mongo service

GhanGhan EntrantCurrent User Role Supporter
Hello,
I re-deploy PMMv2.3. I added my mongo servers but PMM can not see its mongo service. I checked from prometheus which is getting mondo Infos from the agent. Do you have any idea why it's like that?




I also try to deploy Pmmv2.4 and it was the same as v2.3. Whats missing?

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Answers

  • GhanGhan Entrant Current User Role Supporter
    I think i found the problem. The problem comes through agent.  At prometheus, every node showing under same service name instead of their own. But dont know how to fix it :neutral:


  • GhanGhan Entrant Current User Role Supporter
    I have another idea, my mongo instances have authorization=enabled. Which means i may need to define a username&password to pmm-agent. Any idea?
  • GhanGhan Entrant Current User Role Supporter
    Gotca!
    Apr 10 15:33:55 pmmagent pmm-agent[8323]: INFO[2020-04-10T15:33:55.279+03:00] time="2020-04-10T15:33:55+03:00" level=error msg="Failed to get oplog timestamps status: (Unauthorized) command find requires authentication" source="oplog_status.go:149"  agentID=/agent_id/67441628-948e-402a-90d4-44bad58c4fa5 component=agent-process type=mongodb_exporter

    Now the question; how can i give username&password to the agent/exporter ?

  • steve.hoffmansteve.hoffman Percona Percona Staff Role

    pmm-admin add mongodb --username=mongodb_exporter --password="super_secret_pass" but you'll first need to grant the user the right permissions in mongo.  Here are the steps to create the user/password and grant the right permissions to be used with the exporter (that's from PMM1 docs so only use that part to set the mongo permissions, the other steps won't be the same).  
    You'll need to remove that exporter first though to re-add it with the credentials. (pmm-admin remove mongodb <service-name>

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