tencent cloud


Unhealthy guidance for Yarn nodemanager nodes

Last updated: 2020-10-13 15:51:31

    How do I fix an unhealthy node in YARN NodeManager?


    When disk utilization of a core node exceeds 90%, NodeManager will set it as "Unhealthy".


    1. We recommend that you use Cloud Monitor and set the alarm threshold for ERM CVM disk utilization to 80-85%, so that the node disk utilization won't exceed 90%.
      Configure the EMR disk utilization threshold in Cloud Monitor at the following address:
    2. If the disk capacity is insufficient, you can add core nodes and perform load balancing to reduce the load of HDFS storage on the core nodes.
    3. Clean up the disk regularly, especially the following parts:
      • Storage space of the core nodes.
      • Entire storage space of HDFS.
    Contact Us

    Contact our sales team or business advisors to help your business.

    Technical Support

    Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

    7x24 Phone Support