[Sheepdog] qemu-img convert slowness and high availability status

[krim son]

Hi,

Here's (part of) the output after killing of sheep on node 1 and restarting
the sheep daemon:

root at kvm01:~# sheep -f */data/sheep/*
sheep: jrnl_recover(2221) Openning the directory
/data/sheep//journal/00000003/.
sheep: set_addr(1595) addr = 172.16.1.1, port = 7000
sheep: main(144) Sheepdog daemon (version 0.2.3) started
sheep: send_join_request(1048) 16847020 5144
sheep: update_cluster_info(599) system status = 0, epoch = 4
sheep: get_vdi_bitmap_from_all(518) get the vdi bitmap 1 172.16.1.2
sheep: recover_one(1340) 0 1151,   721ef10000037a
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef10000037a, No such file or directory
sheep: recover_one(1340) 1 1151,   721ef10000020a
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef10000020a, No such file or directory
sheep: recover_one(1340) 2 1151,   721ef100000207
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000207, No such file or directory
sheep: recover_one(1340) 3 1151,   721ef10000029c
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef10000029c, No such file or directory
sheep: recover_one(1340) 4 1151,   721ef100000292
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000292, No such file or directory
sheep: recover_one(1340) 5 1151,   721ef1000003c2
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef1000003c2, No such file or directory
sheep: recover_one(1340) 6 1151,   721ef1000000a6
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef1000000a6, No such file or directory
sheep: recover_one(1340) 7 1151,   721ef100000128
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000128, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000128
sheep: recover_one(1340) 8 1151,   721ef100000339
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000339, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000339
sheep: recover_one(1340) 9 1151,   721ef1000001b0
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef1000001b0, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef1000001b0
sheep: recover_one(1340) 10 1151,   721ef100000269
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000269, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000269
sheep: recover_one(1340) 11 1151,   721ef100000214
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000214, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000214
sheep: recover_one(1340) 12 1151,   721ef1000002f1
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef1000002f1, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef1000002f1
sheep: recover_one(1340) 13 1151,   721ef1000001d3
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef1000001d3, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef1000001d3
sheep: recover_one(1340) 14 1151,   721ef100000175
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000175, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000175
sheep: recover_one(1340) 15 1151,   721ef100000433
sheep: ob_open(491) failed to open
/data/sheep//obj/00000005/00721ef100000433, No such file or directory
sheep: __recover_one(1181) cannot find target node, 721ef100000433

it keeps printing these messages forever I think.

On node 2, collie vdi list currently hangs. When I restart sheep on node 2
it works again, same goes for node 1. This looks like a different situation
than yesterday, I'll see if I can reproduce that.
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