Question about persistent configuration

[Steamgjk]

I am now trying to use ramfs as the storage backend to store version-based data.
There are two attributes in the cfg file.

file_path = .plog
ramdisk_path = /dev/shm/volatile_t

What is the relation between them.
I have created the ramfs as the path /mnt/ram/

So should set ramdisk_path as /mnt/ram or set file_path as /mnt/ram

I guess file_path just specifies the filename, so I should set ramdisk_path=/mnt/ram, and leave file_path as .plog

Then If I run derecho, the versioned data should be stored in /mnt/ram/.plog, is that right?

[songweijia]

ramdisk_path is for the location of storage type ST_MEM. By default, if you don't specify the storage type, Persistent will use ST_FILE, which will store the data in the file system (controlled by file_path).

[Steamgjk]

Hi, @songweijia . I intend to use ramfs as suggested by #233

In that way, do I need to touch these two fields, or not?

Besides, could you help to take a look at my crash issue #235

Derecho is awesome, but it may still take some effort for a freshman like me to get used to it.

[songweijia]

In #233, you are not going to use ST_MEM. Therefore all you need to do to use ramfs is to point file_path to /mnt/ram.