Re: The clients can’t work and unmount after the crash of mds

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On Wed, Sep 22, 2010 at 7:47 AM, cang lin <fwdflywl@xxxxxxxxx> wrote:
> I found the clients(1 local,2 remote) can’t access ceph today.
The clients require an active MDS to connect, since that handles all
the filesystem components of connection.

> 10.09.21_23:37:20.331651 b4d43b70 -- ???.???.248.176:6800/3780 -->
> mon0 ???.???.248.177:6789/0 -- mdsbeacon(4298/lz05 up:active seq
> 497179 v27) v1 -- ?+0 0x8be0de0
> 10.09.21_23:37:20.332446 b6347b70 -- ???.???.248.176:6800/3780 <==
> mon0 ???.???.248.177:6789/0 511955 ==== mdsbeacon(4298/ceph02
> up:active seq 497179 v27) v1 ==== 70+0+0 (116627713 0 0) 0xb2c967a8
> 10.09.21_23:37:22.602613 af9ffb70 -- ???.???.248.176:6800/3780 >>
> ???.??.229.124:0/2562359250 pipe(0x8c26b80 sd=23 pgs=0 cs=0
> l=0).accept peer addr is really ???.???.229.124:0/2562359250 (socket
> is  ???.???.229.124:52272/0)
> 10.09.21_23:37:22.602813 af9ffb70 -- ???.???.248.176:6800/3780 >>
> ???.???.229.124:0/2562359250 pipe(0x8c26b80 sd=23 pgs=0 cs=0
> l=0).accept connect_seq 1 vs existing 1 state 2
> msg/SimpleMessenger.cc: In function 'int SimpleMessenger::Pipe::accept()':
> msg/SimpleMessenger.cc:740: FAILED assert(existing->state ==
> STATE_CONNECTING || existing->state == STATE_STANDBY ||
> existing->state == STATE_WAIT)
>  1: (SimpleMessenger::Pipe::reader()+0x830) [0x80c4ba0]
>  2: (SimpleMessenger::Pipe::Reader::entry()+0x14) [0x80b7d14]
>  3: (Thread::_entry_func(void*)+0x11) [0x80ca7c1]
>  4: (()+0x596e) [0x4a896e]
>  5: (clone()+0x5e) [0x86ca4e]
>  NOTE: a copy of the executable, or `objdump -rdS <executable>` is
> needed to interpret this.
Well, this is interesting. Could you gzip up your mds log and send it
to me or Sage? This shouldn't be able to happen!
-Greg
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