In FusionInsight,What is the possible cause for ALM-12018 Memory Usage Exceeds the Threshold

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1.Memory configuration cannot meet service requirements. The 2.memory usage reaches the upper limit.

Other related questions:
In FusionInsight,What is the impact on system of ALM-12018 Memory Usage Exceeds the Threshold
Service processes respond slowly or become unavailable.

In FusionInsight,What time does ALM-12018 Memory Usage Exceeds the Threshold
The system checks the memory usage of the system every 30 seconds and compares the actual memory usage with the threshold. The memory usage has a default threshold, this alarm is generated when the value of the memory usage exceeds the threshold.

In FusionInsight,how to resolve the alarm ALM-12018 Memory Usage Exceeds the Threshold?
Expand the system. 1.In the alarm list on FusionInsight Manager, locate the row that contains the alarm, and view the alarm host address in the alarm details. 2.Use PuTTY to log in to the host where the alarm is generated as user root. 3.Run the command free -m | grep Mem\: | awk '{printf("%s,", ($3-$6-$7) * 100 / $2)}' to check the system memory usage. 4.If the memory usage exceeds the threshold, perform memory capacity expansion. For details, see the FusionInsight HD Capacity Adjustment Guide. 5.Wait for 5 minutes, check whether the alarm is cleared. If yes, no further action is required. If no, go to Step 6.

In FusionInsight,What is the possible cause for ALM-12016 CPU Usage Exceeds the Threshold
1. The alarm threshold or alarm smoothing times are incorrect. 2. CPU configuration cannot meet service requirements. The CPU usage reaches the upper limit.

In FusionInsight,What is the possible cause for ALM-12027 Host PID Usage Exceeds the Threshold
1.Too many processes are running on the node. You need to increase the value of pid_max. 2.The system is abnormal.

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