When you don't have enough, the process get's killed by the linux kernel.
of course I know it
Is your ram limited by any chance?
of course, 512 Mb now, but how to determine which of config parameteres influences to the ram?
pivx daemon like dash may be and bitcoin I think very gluttonous for ram
but dash daemon more and more stable now, a lot of work has been done there
and ok this discussion can be moved to pivx forum
512 MB is low RAM.
Check if you have a paging file (SWAP) set-up (if the following command returns blank then you don't have one)...
Create a 1GB SWAP file (double the amount of physical RAM is the recommendation up to 2 GB physical RAM)
sudo dd if=/dev/zero of=/swapfile bs=64M count=16
N.B. count=16 = 1GB SWAP (count=32 would create a 2GB SWAP etc.)
You then need to make the paging file persistent on re-boot by adding the following line to the base of /etc/fstab.
Open fstab ...
/swapfile none swap sw 0 0
crtl + x (to save)
Also adding the following lines to sysctl.conf will make the SWAP file more efficient on a server.
Open sysctl.conf ...
sudo nano /etc/sysctl.conf
vm.swappiness = 60
vm.vfs_cache_pressure = 50
Again, crtl + x (to save)
Now restart the wallet daemon. Hope it helps.