[sheepdog-users] Snapshot and Cache stress test
MORITA Kazutaka
morita.kazutaka at gmail.com
Wed Aug 21 03:26:06 CEST 2013
At Tue, 20 Aug 2013 17:33:11 +0800,
Liu Yuan wrote:
>
> On Tue, Aug 20, 2013 at 11:14:00AM +0200, Valerio Pachera wrote:
> > I've been trying with qemu cache=directsync.
> > Sheepdog daemon version 0.7.0.
> >
> > The first run it didn't crash.
> >
> > The second run I got
> >
> > Aug 20 11:06:15 ERROR [main] gateway_op_done(119) leaving sheepdog cluster.
> >
> > I noticed a node has a slightly different date/time of 18 seconds.
> > I'm going to fix that and repeat the test.
> >
> > Here's the vid list.
> > Notice there are several id 0!
> >
> > # dog vdi list
> > Name Id Size Used Shared Creation time VDI id Copies Tag
> > s big 3 50 GB 468 MB 0.0 MB 2013-08-20 10:57 4fd25b
> > 3
> > s big 4 50 GB 28 MB 456 MB 2013-08-20 11:00 4fd25c
> > 3
> > s big 5 50 GB 64 MB 472 MB 2013-08-20 11:00 4fd25d
> > 3
> > s big 6 50 GB 28 MB 524 MB 2013-08-20 11:01 4fd25e
> > 3
> > s big 7 50 GB 28 MB 540 MB 2013-08-20 11:01 4fd25f
> > 3
> > big 0 50 GB 28 MB 556 MB 2013-08-20 11:01 4fd260
> > 3
> > s big 9 50 GB 20 MB 576 MB 2013-08-20 11:01 4fd261
> > 3
> > s big 10 50 GB 28 MB 584 MB 2013-08-20 11:02 4fd262
> > 3
> > s big 11 50 GB 24 MB 604 MB 2013-08-20 11:02 4fd263
> > 3
> > s big 12 50 GB 28 MB 616 MB 2013-08-20 11:02 4fd264
> > 3
> > s big 13 50 GB 24 MB 636 MB 2013-08-20 11:02 4fd265
> > 3
> > s big 14 50 GB 132 MB 636 MB 2013-08-20 11:02 4fd266
> > 3
> > s big 15 50 GB 24 MB 760 MB 2013-08-20 11:03 4fd267
> > 3
> > s big 16 50 GB 28 MB 772 MB 2013-08-20 11:04 4fd268
> > 3
> > big 0 50 GB 24 MB 792 MB 2013-08-20 11:04 4fd269
> > 3
> > s big 18 50 GB 24 MB 808 MB 2013-08-20 11:04 4fd26a
> > 3
> > s big 19 50 GB 28 MB 820 MB 2013-08-20 11:04 4fd26b
> > 3
> > s big 20 50 GB 24 MB 840 MB 2013-08-20 11:04 4fd26c
> > 3
> > s big 21 50 GB 24 MB 856 MB 2013-08-20 11:05 4fd26d
> > 3
> > s big 22 50 GB 24 MB 872 MB 2013-08-20 11:05 4fd26e
> > 3
> > s big 23 50 GB 24 MB 888 MB 2013-08-20 11:05 4fd26f
> > 3
> > s big 24 50 GB 24 MB 904 MB 2013-08-20 11:05 4fd270
> > 3
> > s big 25 50 GB 24 MB 920 MB 2013-08-20 11:05 4fd271
> > 3
> > s big 26 50 GB 24 MB 936 MB 2013-08-20 11:05 4fd272
> > 3
> > big 0 50 GB 24 MB 952 MB 2013-08-20 11:06 4fd273
> > 3
> > big 0 50 GB 24 MB 968 MB 2013-08-20 11:06 4fd274
> > 3
> > s big 29 50 GB 20 MB 980 MB 2013-08-20 11:06 4fd275
> > 3
> > s big 30 50 GB 24 MB 992 MB 2013-08-20 11:06 4fd276
> > 3
> > s big 31 50 GB 28 MB 1004 MB 2013-08-20 11:06 4fd277
> > 3
> > s big 32 50 GB 24 MB 1.0 GB 2013-08-20 11:06 4fd278
> > 3
> > s big 33 50 GB 28 MB 1.0 GB 2013-08-20 11:07 4fd279
> > 3
> > s big 34 50 GB 28 MB 1.0 GB 2013-08-20 11:07 4fd27a
> > 3
> > s big 35 50 GB 12 MB 1.0 GB 2013-08-20 11:07 4fd27b
> > 3
> > s big 36 50 GB 0.0 MB 1.1 GB 2013-08-20 11:07 4fd27c
> > 3
> > s big 37 50 GB 4.0 MB 1.1 GB 2013-08-20 11:07 4fd27d
> > 3
> > s big 38 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd27e
> > 3
> > s big 39 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd27f
> > 3
> > s big 40 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd280
> > 3
> > s big 41 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd281
> > 3
> > s big 42 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd282
> > 3
> > s big 43 50 GB 0.0 MB 1.1 GB 2013-08-20 11:08 4fd283
> > 3
> > s big 44 50 GB 0.0 MB 1.1 GB 2013-08-20 11:09 4fd284
> > 3
> > s big 45 50 GB 0.0 MB 1.1 GB 2013-08-20 11:09 4fd285
> > 3
> > big 0 50 GB 0.0 MB 1.1 GB 2013-08-20 11:09 4fd286 3
> > --
>
> Kazutaka, I suspect that 24cf669 introduce the segfault, any ideas? And we'd
> better put Valerio's test into our tests/functional too.
I couldn't reproduce it, but the problem happens even with v0.7.0,
right? I guess it is the problem of the live snapshot feature.
Valerio, can you try the following tree? It contains some fixes for
sheepdog.
git://github.com/sheepdog/qemu.git
Thanks,
Kazutaka
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