[SOLVED] are the "chunk" files compressed?

[abma]

what i read about it in several posts: yes. But when looking into it:

i.e.:

cd .chunks/683c

for i in *; do echo $i; hexdump -C $i | head; done

some of the data seems uncompressed, as i can read plain data!


are there exceptions or are all chunks uncompressed and only the filesystem is compressed?

also we converted the datatstore from zfs to ext4 and noticed that it uses a lot more disk space. I guess thats because zfs was compressed?

when reading the source code, it seems there are uncompressed chunks:

https://git.proxmox.com/?p=proxmox-...=80ab05e40c45dbbd9c435253d923161e430e577e#l15

 

[dietmar]

All chunks are compressed, unless compression leads to bigger files. In that case we store uncompressed because that is smaller.

 

[abma]

can you point to the code where its decided if its compressed or not?

 

[fabian]

https://git.proxmox.com/?p=proxmox-...747041e63610a69b10a63f2157bb5dd3a;hb=HEAD#l89