[sheepdog-users] Snapshot and Cache stress test

[Valerio Pachera]

I'm back :-)

0.7.0_26_gc65bb2f

When I simly  start and stop the guest I get

Aug 23 16:55:44  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 16:55:44  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 16:55:44  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 16:55:44  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 16:55:44  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 16:55:44  ERROR [net 30987] rx_work(534) failed to read a header
Aug 23 16:55:44  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 16:55:44  ERROR [net 30987] rx_work(534) failed to read a header




After the first snapshot, without writing any data yet

Aug 23 17:01:07  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:07  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 17:01:07  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:07  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31956] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31956] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30987] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31958] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31958] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31957] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31957] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31957] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31957] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30987] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31956] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31956] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30987] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31956] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31956] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31957] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31957] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30987] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30987] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31017] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31017] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 30988] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 30988] rx_work(534) failed to read a header
Aug 23 17:01:08  ERROR [net 31957] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:01:08  ERROR [net 31957] rx_work(534) failed to read a header


I write then 128M o file on the guest by dd and it seems it does it,
but when I also run "sync", it get stuck.
After 120 seconds i receive the timeout message.
I notice qemu process is using all the allocated ram (5129 instead of
~90M) and almost no cpu.

After I've been killing the guest, I get

Aug 23 17:07:48  ERROR [net 31958] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:07:48  ERROR [net 31958] rx_work(534) failed to read a header
Aug 23 17:07:48  ERROR [net 31958] do_read(220) connection is closed
(48 bytes left)
Aug 23 17:07:48  ERROR [net 31958] rx_work(534) failed to read a header

Then

collie vdi check -s 1 small
100.0 %
5.0 GB / 5.0 GB
finish check&repair small

root at test005:~# collie vdi check  small
 99.4 %
] 5.0 GB / 5.0 GB    no node has 98999900000140