How many types of nodes does FusionInsight comprise?

16

The FusionInsight system has three types of nodes: management, control, and data nodes.A management node is a node where FusionInsight Manager is installed. FusionInsight Manager is the management system of a FusionInsight HD cluster and provides a unified access portal to centrally manage nodes and services. A control node controls and monitors how data nodes store and receive data, and send process status, and provides other public functions. A data node executes instructions sent by management nodes, reports task status, stores data, and provides other public functions.

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FusionInsight node types
The FusionInsight system has three types of nodes: management, control, and data nodes.A management node is a node where FusionInsight Manager is installed. FusionInsight Manager is the management system of a FusionInsight HD cluster and provides a unified access portal to centrally manage nodes and services. A control node controls and monitors how data nodes store and receive data, and send process status, and provides other public functions. A data node executes instructions sent by management nodes, reports task status, stores data, and provides other public functions.

What types of nodes does FusionInsight comprise?
The FusionInsight system has three types of nodes: management, control, and data nodes.A management node is a node where FusionInsight Manager is installed. FusionInsight Manager is the management system of a FusionInsight HD cluster and provides a unified access portal to centrally manage nodes and services. A control node controls and monitors how data nodes store and receive data, and send process status, and provides other public functions. A data node executes instructions sent by management nodes, reports task status, stores data, and provides other public functions.

How many types are FusionInsight logs classified into?
FusionInsight log types are as follows: 1. Installation logs: record the Manager, cluster, and service installation information to help users locate installation errors. 2. Run logs: record the running track information, debugging information, status changes, potential problems, and error information generated during the running of services. 3. Audit logs: record information about users' activities and operation instructions, which can be used to locate fault causes in security events and determine who are responsible for these faults.

How many user types are used in FusionInsight?
FusionInsight supports human-machine users and machine-machine users. Passwords of human-machine users can be customized based on the password policy. Those of machine-machine users are randomly generated by the system. The two kinds of users can co-exist in a FusionInsight cluster.

In FusionInsight,How does Management Node fault impact the system
?If one management node is faulty, active/standby failover occurs in all the major processes on the node, and an active/standby failover alarm and a node fault alarm are generated. For details on the system impact, see Alarm handling. ?When one more management node is faulty, the service is seriously affected. Stop all services that are running and rectify the fault immediately.

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