how to deal with Database Space Is Going to Be Insufficient alarm on FusionCompute V1R5C00 version

This alarm is generated when the system detects that the database space usage of management nodes hits 80%.

This alarm is cleared when the database space usage is less than 80%.
Confirm the IP address of the faulty node.

On the FusionCompute portal, click Monitoring, and choose Alarm in the navigation tree on the left. On the Alarm page, locate the row that contains the alarm and click the name in the Alarm Object column.
The Service and Management Node page is displayed.

On the Service and Management Node page, view information about the management nodes and obtain the management IP address of the node whose name is the same as that of Alarm Object in Step 1.
Rectify the fault.

Use PuTTY to log in to the faulty node.
Ensure that the management IP address and username gandalf are used to establish the connection.

Run the following command and enter the password of user root to switch to user root:

su - root

Run the following command to query the space usage of each database.
df -l

Information similar to the following is displayed:

VRM8810:~ # df -l
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 10317828 2033244 7760468 21% /
devtmpfs 8147620 212 8147408 1% /dev
tmpfs 8147620 0 8147620 0% /dev/shm
/dev/sda6 1027768 17912 957648 2% /etc/galax
/dev/sda10 880874308 204948 835923520 1% /extend
/dev/sda8 1106800 34188 1016388 4% /opt/galax/upgrade
18578172 627648 17006808 4% /opt/gaussdb
/dev/sda5 18572112 316568 17312132 2% /var
30834692 176196 29092188 1% /var/backup

Filesystem: specifies the name of a disk partition.
1K-blocks: specifies the disk capacity.
Used: specifies the used disk capacity.
Available: specifies the available disk capacity.
Use%: specifies the disk usage.
Mounted on: specifies the directory to which the disk is attached.

Enter the directory that contains the alarm object, and delete the files that are unnecessary or that you have copied.

File deletion is a high-risk operation. Therefore, make sure that the files to be deleted are not those that are stored in the system directory or in the directory that contains important in-use services.

After 10 or 15 minutes, check whether the alarm is cleared

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