Upon successfully creating clusters, click the cluster name to enter the cluster detail page to view detailed monitoring information about the cluster running and assist cluster operation and maintenance supervision. You can also view it via "Monitoring-Resource Monitoring-Monitoring of JCS for Elasticsearch".
Access JCS for Elasticsearch Console, and enter the cluster list page.
Click a cluster name in the Cluster List Page to enter the Detail Page.
Enter the Monitoring Page by click [Cluster Monitoring] in the Detail Page.
The monitoring period can be selected from "1 hour", "6 hours" and "12 hours" based on the current time, or can be selected from the calendar time period on your own.
Click Set Alarm Rules in the upper right corner, and it will jump to the Monitoring page after clicking for alarm rules settings.
Monitoring indicators include: Cluster health status, cluster query QPS, cluster write QPS, node CPU use rate, node disk use rate and node HeapMemory use rate.
|Cluster Status||0 means green, the cluster is in the healthiest status; 1 means yellow, the high availability of the cluster is affected, but the search results are still complete; 2 means red, the cluster is abnormal, the search can only return part of the data|
|Cluster Query QPS (Count/Second)||Reflects how busy the cluster query operations are|
|Cluster Write QPS (Count/Second)||Reflects how busy the cluster write operations are|
|CPU Node Use Rate (%)||If the CPU use rate is too high, it will decrease the cluster node processing capacity or even cause system breakdown|
|Node Disk Use Rate (%)||Too high disk use rate will cause the failure of data being written normally|
|Node HeapMemory Use Rate (%)||Will affect query performance when the value is too high|
The health status is a very important monitoring item of the JCS for Elasticsearch cluster, which is used to indicate whether the cluster is working normally generally. The types of health statuses are as follows:
|green||All the primary shards and replicas have been assigned, and the cluster is 100% available.|
|yellow||All the primary shards have been shared, but at least one replica is missing. High availability is weakened to some extent.|
|red||At least one primary shards (and all its replicas) are missing.|