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FusionInsight HD 6.5.0 Administrator Guide 02

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Optimizing Manager Configurations Based on the Number of Cluster Nodes

Optimizing Manager Configurations Based on the Number of Cluster Nodes

Scenario

Manager parameters vary greatly with FusionInsight cluster scales. Before cluster capacity adjustment or cluster installation, users can manually specify the number of nodes in the Manager cluster and the system automatically adjust related process parameters.

NOTE:

In addition, during cluster installation, users can specify the number of cluster nodes by adjusting the value of the cluster_nodes_scale parameter in the Manager configuration file.

Procedure

  1. Use PuTTY to log in to the active Manager node as user omm.
  2. Run the following command to switch the directory:

    cd ${BIGDATA_HOME}/om-server/om/sbin

  3. Run the following command to view the current Manager configurations.

    sh oms_config_info.sh -q

  4. Run the following command to specify the number of nodes in the current cluster.

    Command format: sh oms_config_info.sh -s number of nodes

    Example:

    sh oms_config_info.sh -s 1000

    Enter y as prompted.

    The following configurations will be modified:
         Module       Parameter         Current          Target 
         Controller   controller.Xmx    4096m        =>  16384m
         Controller   controller.Xms    1024m        =>  8192m  
         Controller   controller.node.heartbeat.error.threshold     30000                      =>   60000                   
         Pms          pms.mem           8192m        =>  10240m 
    Do you really want to do this operation? (y/n):

    The configurations are updated successfully if the following information is displayed:

    ...
    Operation has been completed. Now restarting OMS server.                  [done]
    Restarted oms server successfully.
    NOTE:
    • OMS is automatically restarted during the configuration update process.
    • Clusters with similar quantities of nodes have same Manager configurations. For example, when the number of nodes is changed from 100 to 101, no configuration item needs to be updated.

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Updated: 2019-05-17

Document ID: EDOC1100074522

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