In FusionInsight,how to resolve the alarm ALM-12027 Host PID Usage Exceeds the Threshold?

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http://support.huawei.com/ehedex/pages/DOC1000113260YEF0811N/04/DOC1000113260YEF0811N/04/resources/alarm/ALM-12027.html?ft=0&id=aalm-12027

Other related questions:
In FusionInsight,What is the impact on system of ALM-12027 Host PID Usage Exceeds the Threshold
No PID is available for new processes and service processes are unavailable.

In FusionInsight,What time does ALM-12027 Host PID Usage Exceeds the Threshold
The system checks the PID usage every 30 seconds and compares the actual PID usage with the default PID usage threshold. This alarm is generated when the system detects that the PID usage exceeds the threshold.

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.

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,how to resolve the alarm ALM-12016 CPU Usage Exceeds the Threshold?
http://support.huawei.com/ehedex/pages/DOC1000113260YEF0811N/04/DOC1000113260YEF0811N/04/resources/alarm/ALM-12016.html?ft=0&id=alm12016

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