Resize logical volume in ubuntu without damaging

When I run lsblk i get as below

vda                       252:0    0   150G  0 disk 
├─vda1                    252:1    0     1M  0 part 
├─vda2                    252:2    0   1.5G  0 part /boot
└─vda3                    252:3    0 148.5G  0 part 
  └─ubuntu--vg-ubuntu--lv 253:0    0  74.3G  0 lvm  /

now i want to inrease size of ubuntu--vg-ubuntu--lv by writing

sudo lvextend -L +70G /dev/mapper/ubuntu--vg-ubuntu--lv
sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

my ubuntu--vg-ubuntu--lv is in production. My database and website is there. Resizing can damage it anyhow?