Increase the sze of swap:
me@laptop:~/Downloads/vSRX$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 2.2M 1 loop /snap/gnome-calculator/222
. . .
loop26 7:26 0 140.9M 1 loop /snap/gnome-3-26-1604/70
sda 8:0 0 149.1G 0 disk
└─sda1 8:1 0 149.1G 0 part
├─ubuntu--vg-root 253:0 0 148.1G 0 lvm /
└─ubuntu--vg-swap_1 253:1 0 976M 0 lvm [SWAP]
sr0 11:0 1 1024M 0 rom
affan@affan-laptop:~/Downloads/vSRX$ sudo lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID WpUD9o-Xf7d-QBU8-dFW9-oSgX-2Jn4-3ZbunW
LV Write Access read/write
LV Creation host, time ubuntu, 2018-04-30 11:37:26 +0100
LV Status available
# open 1
LV Size 148.05 GiB
Current LE 37902
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID X35PQl-Y6F5-oGuH-CB45-k0QA-ea3M-gUG46d
LV Write Access read/write
LV Creation host, time ubuntu, 2018-04-30 11:37:27 +0100
LV Status available
# open 2
LV Size 976.00 MiB
Current LE 244
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
https://www.2daygeek.com/how-to-create-extend-swap-partition-in-linux-using-lvm/#