From mboxrd@z Thu Jan  1 00:00:00 1970
From: Samuel Just <sjust@redhat.com>
Subject: Re: replicatedPG assert fails
Date: Thu, 21 Jul 2016 07:54:02 -0700
Message-ID: <CAN=+7FWkeX+5zwzuYcHE35ZSHWO7ZyUVG0vHd3Y+K5AEPPsb1w@mail.gmail.com>
References: <CAG0LsznhUpP=ub-TmiHSO0A9JZWjk8eov2Lu8y15snqcdG_4Aw@mail.gmail.com>
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To: Sugang Li <sugangli@winlab.rutgers.edu>
Cc: ceph-devel <ceph-devel@vger.kernel.org>

Hmm.  Can you provide more information about the poison op?  If you
can reproduce with
debug osd = 20
debug filestore = 20
debug ms = 1
it should be easier to work out what is going on.
-Sam

On Thu, Jul 21, 2016 at 7:13 AM, Sugang Li <sugangli@winlab.rutgers.edu> wrote:
> Hi all,
>
> I am working on a research project which requires multiple write
> operations for the same object at the same time from the client. At
> the OSD side, I got this error:
> osd/ReplicatedPG.cc: In function 'int
> ReplicatedPG::find_object_context(const hobject_t&, ObjectContextRef*,
> bool, bool, hobject_t*)' thread 7f0586193700 time 2016-07-21
> 14:02:04.218448
> osd/ReplicatedPG.cc: 9041: FAILED assert(oid.pool ==
> static_cast<int64_t>(info.pgid.pool()))
>  ceph version 10.2.0-2562-g0793a28 (0793a2844baa38f6bcc5c1724a1ceb9f8f1bbd9c)
>  1: (ceph::__ceph_assert_fail(char const*, char const*, int, char
> const*)+0x8b) [0x7f059fe6dd7b]
>  2: (ReplicatedPG::find_object_context(hobject_t const&,
> std::shared_ptr<ObjectContext>*, bool, bool, hobject_t*)+0x1dbb)
> [0x7f059f9296fb]
>  3: (ReplicatedPG::do_op(std::shared_ptr<OpRequest>&)+0x186e) [0x7f059f959d7e]
>  4: (ReplicatedPG::do_request(std::shared_ptr<OpRequest>&,
> ThreadPool::TPHandle&)+0x73c) [0x7f059f916a0c]
>  5: (OSD::dequeue_op(boost::intrusive_ptr<PG>,
> std::shared_ptr<OpRequest>, ThreadPool::TPHandle&)+0x3f5)
> [0x7f059f7ced65]
>  6: (PGQueueable::RunVis::operator()(std::shared_ptr<OpRequest>
> const&)+0x5d) [0x7f059f7cef8d]
>  7: (OSD::ShardedOpWQ::_process(unsigned int,
> ceph::heartbeat_handle_d*)+0x86c) [0x7f059f7f003c]
>  8: (ShardedThreadPool::shardedthreadpool_worker(unsigned int)+0x947)
> [0x7f059fe5e007]
>  9: (ShardedThreadPool::WorkThreadSharded::entry()+0x10) [0x7f059fe60160]
>  10: (()+0x8184) [0x7f059e2d2184]
>  11: (clone()+0x6d) [0x7f059c1e337d]
>
> And at the client side, I got segmentation fault.
>
> I am wondering what will be the possible reason that cause the assert fail?
>
> Thanks,
>
> Sugang
> --
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