Sending a 585G snapshot from box1 to box2:
# ionice -c3 btrfs send daily*2013-12-01* | pv -L40m -s585G | ssh
-c arcfour 10.0.0.40 btrfs receive /data/.snapshots/data/images
At subvol daily_[1385956801]_2013-12-01_23:00:01
At subvol daily_[1385956801]_2013-12-01_23:00:01
ERROR: send ioctl failed with -12: Cannot allocate
memory=======================================> ] 59% ETA 2:04:01
347GB 3:00:12 [32.8MB/s]
[=====================================================================> ]
59%
ERROR: unexpected EOF in stream.
Send failed a little over halfway through with "Cannot allocate memory"
error. Which is surprising, given that this is a relatively lightly
loaded 32G server. Output of free -m, taken immediately after seeing
the error above:
root@gwa-virt1:/data/.snapshots/data/images# free -m
total used free shared buffers cached
Mem: 32158 31798 360 0 0 22092
-/+ buffers/cache: 9705 22453
Swap: 0 0 0
Anybody got any suggestions?
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