Troubleshooting Tip: Increasing the Swap Space on the FortiSOAR Instance

[sramanujam]

Description	Swap memory is usually where the kernel moves inactive or less frequently used data from RAM to free up physical RAM for more critical FortiSOAR processes. There might be a case where, at times, even the savior swap memory can become full. Generally, it is possible to address this issue by either identifying and terminating resource-intensive processes or, more easily, by increasing the swap space. This article describes how to quickly increase swap space on a FortiSOAR instance.
Scope	FortiSOAR v6.x v7.x.
Solution	Let’s check the system’s current swap space configuration using the free command: $ free -gh total used free shared buff/cache available Mem: 4.7Gi 796Mi 3.0Gi 25Mi 884Mi 3.7Gi Swap: 2.9Gi 1.8Gi 1.1Gi Create the swap file using the fallocate command: $ sudo fallocate -l 1G /swapfile_extend_1GB Then, secure the swap file by restricting permissions on it. Like that, only root can access it. $ sudo chmod 600 /swapfile_extend_1GB $ ls -l /swapfile_extend_1GB -rw------- 1 root root 1073741824 Aug 28 17:21 /swapfile_extend_1GB Now that the file has been created, use it for swap, and set appropriate permissions on it. the newly created file is formatted as a swap. $ sudo mkswap /swapfile_extend_1GB Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes) no label, UUID=9d28d839-2f4f-4173-9bba-576539fce7b6 After formatting the file as a swap file, enable it to activate the new swap file. $ sudo swapon /swapfile_extend_1GB To preserve the newly created swap file even after a reboot, add an entry to the /etc/fstab file. $ sudo vi /etc/fstab /swapfile_extend_1GB none swap sw 0 0 We can use the grep command to confirm the configuration for the newly added swap file. $ grep swap /etc/fstab /swapfile none swap sw 0 0 /swapfile_extend_1GB none swap sw 0 0 Subsequently, it is possible to examine whether the swap file is active using the free command. $ free -gh total used free shared buff/cache available Mem: 4.7Gi 796Mi 3.0Gi 25Mi 884Mi 3.7Gi Swap: 3.9Gi 1.9Gi 2.0Gi A swap file has been successfully created and the system has now additional space, which can help to improve the performance when RAM usage is high.