Scenario
If the specifications (vCPU and memory) of the ECS instances within a node group fail to meet your business needs, you can enhance these ECS instance specifications through the feature of configuration upgrade. After upgrading the configuration, you need to manually adjust the configuration information of services such as Doris, Elasticsearch. This section guides you on how to modify configuration items on the Configuration Management page in YI-MapReduce Manager.
Before You Begin
You have created a cluster.
Procedure
1. In YI-MapReduce Manager, click on O&M and Configuration.
2. Click on Configuration Management.
3. Choose the Selected Cluster Services, click Query, and you can modify the configuration information on the current page.
Suggestions for Configuration Modifications
1. Doris: After the configuration of the node where Doris resides is upgraded, it is recommended that Doris FE uses half of the node's memory.
2. Elasticsearch: For a single Elasticsearch node, it is recommended that the memory does not exceed 64G. After the configuration of the node where Elasticsearch resides is upgraded, Elasticsearch will automatically set the memory value according to the node conditions. Generally, no manual modification is needed, but the cluster needs to be restarted. If you wish to manually set it, you can modify the -Xms30g and -Xmx30g parameters in the jvm.options file and restart the cluster.