On 08/24/2012 01:37 PM, MORITA Kazutaka wrote:
> It is a good idea to refine the farm backend store too, but simple
> store should be added as another driver, I think. The simple driver
> would become a good tutorial to introduce new drivers.
Okay, I'd suggest use default_xxx as prefix instead of
At Fri, 24 Aug 2012 08:35:25 +0200 (CEST),
Alexandre DERUMIER wrote:
>
> >>If you run the following command, you can rollback the snapshot again.
> >>
> >>$ qemu sheepdog:image1:snap1
> >>
> >>I think the 'collie vdi tree' command would help you.
>
> Thanks, But I don't understand how It can w
From: levin li
Since we already send vdi copy list in get_vdis(), there's no
need to send the vdi_inuse bitmap any more, without it we can
send less data as the length of vdi copy list is variable and
it contains the vid just as vdi_inuse does.
Signed-off-by: levin li
---
include/internal_prot
From: levin li
Signed-off-by: levin li
---
collie/common.c| 32
include/sheep.h|5 +
sheep/sheep_priv.h |5 -
3 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/collie/common.c b/collie/common.c
index 364e36c..ce8dcf7 100
At Fri, 24 Aug 2012 15:04:56 +0800,
Liu Yuan wrote:
>
> On 08/24/2012 01:37 PM, MORITA Kazutaka wrote:
> > It is a good idea to refine the farm backend store too, but simple
> > store should be added as another driver, I think. The simple driver
> > would become a good tutorial to introduce new d
On 08/24/2012 03:15 PM, MORITA Kazutaka wrote:
> At Fri, 24 Aug 2012 15:04:56 +0800,
> Liu Yuan wrote:
>>
>> On 08/24/2012 01:37 PM, MORITA Kazutaka wrote:
>>> It is a good idea to refine the farm backend store too, but simple
>>> store should be added as another driver, I think. The simple driver
Thanks for the explain, I'll do tests this week.
Regards,
Alexandre
- Mail original -
De: "MORITA Kazutaka"
À: "Alexandre DERUMIER"
Cc: "MORITA Kazutaka" , sheepdog@lists.wpkg.org
Envoyé: Vendredi 24 Août 2012 09:08:51
Objet: Re: [sheepdog] snapshot rollback ?
At Fri, 24 Aug 20
On 08/24/2012 03:28 PM, Liu Yuan wrote:
> which is also relevant to
which is also not relevant to
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On 08/24/2012 03:28 PM, Liu Yuan wrote:
>>> >>
>>> >> I'll go to update the farm's io path to use defaul_xxx functions, I
>>> >> think this simple store implementation can be nicely applied to farm.
>> >
>> > The update will change the data layout of farm. How about introducing
>> > 'farm2'? I g
At Fri, 24 Aug 2012 15:28:07 +0800,
Liu Yuan wrote:
>
> I think simple_store.c itself won't cause confusion. 'default store'
> will instead cause greater confusion.
The reason I think 'simple' is not good is that we had a 'simple'
driver before which had a completely different data layout. There
On 08/24/2012 03:37 PM, MORITA Kazutaka wrote:
> The reason I think 'simple' is not good is that we had a 'simple'
> driver before which had a completely different data layout. There may
> be some users who still use a simple driver with old sheepdog version.
> If they upgrade to the latest versio
At Fri, 24 Aug 2012 15:40:14 +0800,
Liu Yuan wrote:
>
> On 08/24/2012 03:37 PM, MORITA Kazutaka wrote:
> > The reason I think 'simple' is not good is that we had a 'simple'
> > driver before which had a completely different data layout. There may
> > be some users who still use a simple driver wi
This introduces a storage driver 'plain' based on the current storage
interface. The design of the plain store is similar to one of the
farm driver. The main difference is that the current farm uses the
sha1 based backend store for stale objects, but simple_store uses a
flat directory for them.
On 08/23/2012 10:58 PM, MORITA Kazutaka wrote:
> +static int simple_store_read_from_path(uint64_t oid, char *path,
> +struct siocb *iocb)
> +{
> + int flags = def_open_flags, fd, ret = SD_RES_SUCCESS;
> + ssize_t size;
> +
> + if (!is_data_obj(oid))
>
At Fri, 24 Aug 2012 15:57:37 +0800,
Liu Yuan wrote:
>
> On 08/23/2012 10:58 PM, MORITA Kazutaka wrote:
> > +static int simple_store_read_from_path(uint64_t oid, char *path,
> > + struct siocb *iocb)
> > +{
> > + int flags = def_open_flags, fd, ret = SD_RES_SUCCES
On 08/24/2012 04:08 PM, MORITA Kazutaka wrote:
> I think both farm and plain don't need it. Can you explain a scenario
> where it can cause a problem?
Qemu can issue multiple requests on the same oid, doesn't it? If there
is some kind of write barrier to prevent reading stale oid or actually
no p
At Fri, 24 Aug 2012 16:13:51 +0800,
Liu Yuan wrote:
>
> On 08/24/2012 04:08 PM, MORITA Kazutaka wrote:
> > I think both farm and plain don't need it. Can you explain a scenario
> > where it can cause a problem?
>
> Qemu can issue multiple requests on the same oid, doesn't it? If there
Yes, but
On 08/24/2012 03:55 PM, MORITA Kazutaka wrote:
> This introduces a storage driver 'plain' based on the current storage
> interface. The design of the plain store is similar to one of the
> farm driver. The main difference is that the current farm uses the
> sha1 based backend store for stale obje
At Fri, 24 Aug 2012 15:11:37 +0800,
levin li wrote:
>
> From: levin li
>
> Since we already send vdi copy list in get_vdis(), there's no
> need to send the vdi_inuse bitmap any more, without it we can
> send less data as the length of vdi copy list is variable and
> it contains the vid just as v
From: Liu Yuan
Use plain implementation for core IO path. This greately reduce the complexity
of farm recovery handling. With this patch, Farm will operate *entirely* the
same
as plain store for IO and recovery handling. Farm and Plain store will share
core IO functions completely.
Liu Yuan (6)
From: Liu Yuan
We should add vdi copy number to copy list.
Signed-off-by: Liu Yuan
---
sheep/plain_store.c | 30 +-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/sheep/plain_store.c b/sheep/plain_store.c
index 02b69a5..4b322b4 100644
--- a/sheep/pl
From: Liu Yuan
This greately reduce the complexity of farm recovery handling. With this patch,
Farm will operate entirely the same as plain store for IO and recovery handling.
Farm and Plain store will share core IO functions completely.
Signed-off-by: Liu Yuan
---
collie/cluster.c|2 +
From: Liu Yuan
When we start up, the objects in .stale is useless. This patch also reworks the
->cleanup() interface to reflect the current implementation.
Signed-off-by: Liu Yuan
---
sheep/ops.c |4 +---
sheep/plain_store.c |5 -
sheep/sheep_priv.h |4 ++--
3 files ch
From: Liu Yuan
- refine the interface to get name string directly
Signed-off-by: Liu Yuan
---
sheep/farm/farm.c | 26 +-
sheep/ops.c |2 +-
sheep/plain_store.c |3 +--
sheep/sheep_priv.h |4 ++--
4 files changed, 5 insertions(+), 30 deletions(-)
From: Liu Yuan
Since we move recovery handling out of farm backend, we don't need track
IO requests on object, this leave most of functions in trunk.c useless for
now.
Signed-off-by: Liu Yuan
---
sheep/farm/farm.c |5 +-
sheep/farm/farm.h | 14 +-
sheep/farm/trunk.c | 362 ++---
From: Liu Yuan
Signed-off-by: Liu Yuan
---
tests/030 | 46 ++
tests/030.out |7 +++
tests/group |1 +
3 files changed, 54 insertions(+)
create mode 100755 tests/030
create mode 100644 tests/030.out
diff --git a/tests/030 b/tests
At Fri, 24 Aug 2012 20:10:14 +0800,
Liu Yuan wrote:
>
> From: Liu Yuan
>
> When we start up, the objects in .stale is useless. This patch also reworks
> the
> ->cleanup() interface to reflect the current implementation.
>
> Signed-off-by: Liu Yuan
> ---
> sheep/ops.c |4 +---
> s
在 2012-8-25 AM8:26，"MORITA Kazutaka" 写道：
>
> At Fri, 24 Aug 2012 20:10:14 +0800,
> Liu Yuan wrote:
> >
> > From: Liu Yuan
> >
> > When we start up, the objects in .stale is useless. This patch also
reworks the
> > ->cleanup() interface to reflect the current implementation.
> >
> > Signed-off-by:
At Fri, 24 Aug 2012 20:10:11 +0800,
Liu Yuan wrote:
>
> From: Liu Yuan
>
> Use plain implementation for core IO path. This greately reduce the complexity
> of farm recovery handling. With this patch, Farm will operate *entirely* the
> same
> as plain store for IO and recovery handling. Farm and
From: Liu Yuan
Signed-off-by: Liu Yuan
---
tests/011 | 10 +-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/tests/011 b/tests/011
index 781c4fb..b214c3c 100755
--- a/tests/011
+++ b/tests/011
@@ -31,8 +31,16 @@ dd if=/dev/zero of=$STORE/0.img seek=$((2 * 1024 ** 3 -
At Sat, 25 Aug 2012 09:54:11 +0800,
Liu Yuan wrote:
>
> From: Liu Yuan
>
>
> Signed-off-by: Liu Yuan
> ---
> tests/011 | 10 +-
> 1 files changed, 9 insertions(+), 1 deletions(-)
Applied, thanks!
Kazutaka
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Signed-off-by: MORITA Kazutaka
---
tests/031 | 35 +++
tests/031.out | 10 ++
tests/group |1 +
3 files changed, 46 insertions(+), 0 deletions(-)
create mode 100755 tests/031
create mode 100644 tests/031.out
diff --git a/tests/031 b/tests/0
MORITA Kazutaka (2):
tests: add test to check vdi list after cluster startup
store: use O_DIRECT only for data objects
sheep/plain_store.c | 31 ---
tests/031 | 35 +++
tests/031.out | 10 ++
tests/group
init_vdi_copy_number() uses O_DIRECT for vdi objects too. This patch
introduces get_open_flags to avoid making this kind of mistake any
more.
Signed-off-by: MORITA Kazutaka
---
sheep/plain_store.c | 31 ---
1 files changed, 16 insertions(+), 15 deletions(-)
diff -
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