Fuse mount freezes and breaks VM filesystem on network interruption #59
Description
Yesterday i had again issue with unifi switch and for 20 minutes i had lost communication between mfsmaster, chunks, proxmoxes.
That caused very same issue like we had on shorter network interruptions in which adding -o mfsioretries=999999999 did the trick.
#32
Now in longer network issue it did the same thing.
It looks like after such interruption, proxmox does not send data to chunks maybe ?
The second issue i had after such crash.
For some reason some files on moosefs storage were "broken" and i had to use mfsfilerepair which fixed almost all files except one.
But the funny part was this:
4 VMs are running on mfs file storage all good. Then VM with broken file boots up and it cause hang as file could not be read in some part and that froze all other VM files. Maybe the reason is becasue when fuse waits for one file, it freezes other before it complete operation ?
Anyway i wanted to again go into nbd as nbd creates separate connection to each device so that would be faster and more reliable but i am getting a lot of other issues so i need to wait for nbd to be reliable. Currently i am stuck praying for my network switch not to crash again. Any suggestions are welcome.