FusionInsight node types

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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.

How many 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.

Types of FusionInsight logs
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.

In FusionInsight,How to handle Service Node Faulty
1.FusionInsight Manager regularly checks the running status of each node. In case one node is lost due to network or hardware problems, FusionInsight Manager generates the alarm "ALM-12006 Node Fault". Handle the alarm based on the handling procedure. 2.If the alarm persists after step 1, see 10.2.3 Replacing a Faulty Nodeto resolve the problem.

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