In FusionInsight,How does Service Node Faulty impact on the system.

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?The DataNode service is installed on service nodes by default. If less than three service nodes are lost, the service is not affected, but the service response time prolongs. You need to rectify the fault promptly.
?If more than three service nodes are lost, files stored in the Hadoop distributed file system (HDFS) may be lost and the service can be affected. You are advised to stop all service reading operations and rectify the fault immediately.

Other related questions:
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.

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.

How to understand service in the FusionInsight system?
A service is a kind of service capability provided by a component in a cluster. Each component in the cluster provides a service and is named by the service. For example, HBase, HDFS, and Spark are all service names.

What is a service in the FusionInsight system?
A service is a kind of service capability provided by a component in a cluster. Each component in the cluster provides a service and is named by the service. For example, HBase, HDFS, and Spark are all service names.

Definition of service in the FusionInsight system
A service is a kind of service capability provided by a component in a cluster. Each component in the cluster provides a service and is named by the service. For example, HBase, HDFS, and Spark are all service names.

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