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  1. Percona Monitoring and Management
  2. PMM-11116

PMM-Agent is connected but all other agent type are in Unknown Status

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    • [obsolete] C/S Core
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      1. Create an instance of PMM server
      2. Create a database instance and connect it to PMM server using PMM client package from FB
      3. On PMM server instance, kill PMM server process
      4. On client instance, get list of agents using PMM admin
      5. On PMM server instance, start PMM server process
      6. On PMM server, check status of agents from inventory page. Exporter status should be connected for database
      7. On PMM client instance, check status of exporters
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      Create an instance of PMM server Create a database instance and connect it to PMM server using PMM client package from FB On PMM server instance, kill PMM server process On client instance, get list of agents using PMM admin On PMM server instance, start PMM server process On PMM server, check status of agents from inventory page. Exporter status should be connected for database On PMM client instance, check status of exporters

    Description

      While checking the implementation for collecting offline Client Metrics, PMM-7000 we tried to discover the behavior and check the limit in terms of how much data can the clients actually send over to PMM-Server. 

      STR:

      1) Connect 10-20 pmm-agents nodes (please use dev-latest pmm-server and dev-latest pmm-client)

      2) Let them run for 20-30 mins, and let PMM collect data

      3) Kill PMM-Server and let it stay stopped for atleast sometime (50+ mins)

      4) check output of pmm-admin list commands on the client nodes, it will error out because pmm-server isn't available, on the logs we would see failure message about remote write because pmm-server isn't available and agent would try to send the chunk gain after 60 seconds.

      5) Start pmm-server and now pmm-admin list shows agent is connect but all other agent types are in unknown status.

      the same status is visible on pmm-server inventory UI, their are no visible logs on pmm-agent log which show any error related to unknown status. 

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. PMM-11483 Exporters and agents have Done status after PMM server upgrade

          • Medium - Minor loss of function, or other problem where easy workaround is present.
          • Done

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              shashank.sinha Shashank Sinha (Inactive)
              puneet.kala Puneet Kala
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