In FusionInsight,How to Determine Emergency Faults


There are some specific standards or situations where you can decide a fault is emergency or not.

The following are examples of emergency faults:
?FusionInsight cluster crashed due to power failure and unable to recover the cluster.
?FusionInsight cluster performance decreased drastically and the cluster is not active.
?HDFS service is down and unable to restart it in FusionInsight Manager.

Other related questions:
In FusionInsight,How to handle Management Node fault
1.If only one management node is faulty, handle the alarm based on the handling procedure of "ALM-12006 Node Fault." 2.If two management nodes are faulty but FusionInsight Manager can be accessed properly, the following alarms are reported:a.ALM-12006 Node Fault b.Active/standby Component Failover c.Service Unavailable Handle alarms a, b, and c in sequence. If the alarm persists after handling a and b,replacing a Faulty Node to resolve the problem. 3.If FusionInsight Manager cannot be accessed properly, contact the administrator to rectify hardware, network, and OS faults. If the fault persists, contact technical support; otherwise, go to 2.

Server buzzer alarm sound
Currently server buzzer alarm sounds only make sense for the RH2488 V2: Power supply alarm: one long beep. A long beep usually means that a PSU fault occurs, or that two PSUs are present but only one has AC power input. Please check the power supply status and whether the power cable is connected properly. Backplane alarm: one long beep. If this sound is made, check the power supply and signal. RAID controller card alarm: beep once per second. This alarm usually means a RAID controller card or hard disk exception, for example, hard disk fault, RAID disk offline, RAID degrade, or RAID rebuild.

In FusionInsight,how to resolve the alarm ALM-12033 Slow Disk Fault?

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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