[sheepdog-users] Testing snapshot-object-reclaim

[Hitoshi Mitake]

At Thu, 6 Mar 2014 15:12:37 +0800,
Liu Yuan wrote:
> 
> On Thu, Mar 06, 2014 at 01:34:34PM +0900, Hitoshi Mitake wrote:
> > At Thu, 6 Mar 2014 11:19:47 +0800,
> > Liu Yuan wrote:
> > > 
> > > On Wed, Mar 05, 2014 at 03:31:21PM +0100, Valerio Pachera wrote:
> > > > 2014-03-05 12:52 GMT+01:00 Valerio Pachera <sirio81 at gmail.com>:
> > > > > I'll repeat the test and copy / paste the error.
> > > > 
> > > > 
> > > > This time I was connected by ssh and dd got stuck.
> > > > Guest vnc is showing the messages attached.
> > > > 
> > > > In sheep.log I got errors
> > > > 
> > > > Mar 05 12:26:53  ERROR [gway 6289] wait_forward_request(438) fail
> > > > 7c2b270000025b, No object found
> > > > Mar 05 12:26:53  ERROR [gway 6289] wait_forward_request(438) fail
> > > > 7c2b270000025b, No object found
> > > > Mar 05 12:26:53  ERROR [gway 6289] wait_forward_request(438) fail
> > > > 7c2b270000025b, No object found
> > > > Mar 05 12:26:53  ERROR [io 6243] sd_remove_object(451) failed to
> > > > remove object 7c2b270000025b, No object found
> > > > Mar 05 12:26:53  ERROR [io 6243] peer_decref_object(1116) error No object found
> > > > Mar 05 12:26:59  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b2700000420, No object found
> > > > Mar 05 12:26:59  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b2700000420, No object found
> > > > Mar 05 12:26:59  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b2700000420, No object found
> > > > Mar 05 12:26:59  ERROR [io 6136] sd_remove_object(451) failed to
> > > > remove object 7c2b2700000420, No object found
> > > > Mar 05 12:26:59  ERROR [io 6136] peer_decref_object(1116) error No object found
> > > > Mar 05 12:27:11  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b270000082a, No object found
> > > > Mar 05 12:27:11  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b270000082a, No object found
> > > > Mar 05 12:27:11  ERROR [gway 6281] wait_forward_request(438) fail
> > > > 7c2b270000082a, No object found
> > > > Mar 05 12:27:11  ERROR [io 6134] sd_remove_object(451) failed to
> > > > remove object 7c2b270000082a, No object found
> > > > Mar 05 12:27:11  ERROR [io 6134] peer_decref_object(1116) error No object found
> > > > Mar 05 12:43:01  ERROR [gway 6352] wait_forward_request(438) fail
> > > > 87c2b2800000008, No object found
> > > > Mar 05 12:43:01  ERROR [gway 6352] wait_forward_request(438) fail
> > > > 87c2b2800000008, No object found
> > > > Mar 05 12:43:01  ERROR [gway 6349] sd_dec_object_refcnt(492) failed to
> > > > decrement reference 87c2b2800000008, No object found
> > > > Mar 05 12:43:01  ERROR [gway 6349] update_obj_refcnt(603) fail, 2
> > > > Mar 05 12:43:37  ERROR [gway 6397] wait_forward_request(438) fail
> > > > 87c2b2800000009, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6398] wait_forward_request(438) fail
> > > > 87c2b2800000121, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6397] wait_forward_request(438) fail
> > > > 87c2b2800000009, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6375] sd_dec_object_refcnt(492) failed to
> > > > decrement reference 87c2b2800000009, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6375] update_obj_refcnt(603) fail, 2
> > > > Mar 05 12:43:37  ERROR [gway 6398] wait_forward_request(438) fail
> > > > 87c2b2800000121, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6391] sd_dec_object_refcnt(492) failed to
> > > > decrement reference 87c2b2800000121, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6391] update_obj_refcnt(603) fail, 2
> > > > Mar 05 12:43:37  ERROR [gway 6343] wait_forward_request(438) fail
> > > > 87c2b2800000220, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6343] wait_forward_request(438) fail
> > > > 87c2b2800000220, No object found
> > > > Mar 05 12:43:37  ERROR [gway 6399] sd_dec_object_refcnt(492) failed to
> > > > decrement reference 87c2b2800000220, No object found
> > > 
> > > 
> > > > -- 
> > > 
> > > Hi Valerio,
> > > 
> > > Seems that you still have some problem with the laest reclaim branch?
> > 
> > The latest reclaim branch wouldn't be able to pass the Valerio's
> > test. I'll work on it soon.
> > 
> > But the problem is a the GC algorithm specific thing, because the
> > branch can pass all the tests. It doesn't cause degradation of
> > existing sheepdog functionalities.
> 
> Since for now there are no major conflicting patches around and I think even
> in a future window, no conficting patches against your patch set, since Robin
> and I will mainly work on http storage, how about we merge your patch set after
> you fixing Valerio's problem?
> 
> If there are conflicting patchest coming around, then we can consider merge
> your patch set to move on easily.


The recent patch of Robin (memory allocation of sd_inode) is
conflicting with my patchset (the 10th one).

And Ruoyu is posting a patch for adding new test. It also conflicts
with my patchset.

I want to minimize time required for rebasing and solving conflicts
because I have other tasks like managing stable branches. If current
patchset can be merged, it would be very helpful for smooth
development, I think.

Thanks,
Hitoshi