moosefs-users

[Moosefs-users] segfault

[Papp T. <to...@ma...>]

hi!

I see this on an mfs slave server.

May 11 00:06:43 backup0 mfsmetalogger[690]: set gid to 113
May 11 00:06:43 backup0 mfsmetalogger[690]: set uid to 106
May 11 00:06:43 backup0 mfsmetalogger[690]: connecting ...
May 11 00:06:43 backup0 mfsmetalogger[690]: open files limit: 5000
May 11 00:06:43 backup0 mfsmetalogger[690]: connected to Master
May 11 00:06:43 backup0 mfsmetalogger[690]: metadata downloaded 
95B/0.000559s (0.170 MB/s)
May 11 00:06:43 backup0 mfsmetalogger[690]: changelog_0 downloaded 
76B/0.000542s (0.140 MB/s)
May 11 00:06:43 backup0 mfsmetalogger[690]: changelog_1 downloaded 
0B/0.000001s (0.000 MB/s)
May 11 00:06:43 backup0 mfsmetalogger[690]: sessions downloaded 
354B/0.000387s (0.915 MB/s)
May 11 00:07:56 backup0 mfsmetalogger[690]: connection was reset by Master
May 11 00:08:00 backup0 mfsmetalogger[690]: connecting ...
May 11 00:08:00 backup0 mfsmetalogger[690]: connected to Master
May 11 00:08:00 backup0 mfsmetalogger[690]: metadata downloaded 
95B/0.000505s (0.188 MB/s)
May 11 00:08:00 backup0 mfsmetalogger[690]: changelog_0 downloaded 
0B/0.000001s (0.000 MB/s)
May 11 00:08:00 backup0 mfsmetalogger[690]: changelog_1 downloaded 
126B/0.000510s (0.247 MB/s)
May 11 00:08:00 backup0 mfsmetalogger[690]: sessions downloaded 
527B/0.000518s (1.017 MB/s)
May 11 00:09:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000604s (1.445 MB/s)
May 11 00:10:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000517s (1.689 MB/s)
May 11 00:11:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000698s (1.251 MB/s)
May 11 00:12:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000731s (1.194 MB/s)
May 11 00:13:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000666s (1.311 MB/s)
May 11 00:14:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000720s (1.212 MB/s)
May 11 00:15:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000662s (1.319 MB/s)
May 11 00:16:00 backup0 mfsmetalogger[690]: sessions downloaded 
873B/0.000720s (1.212 MB/s)
May 11 00:16:37 backup0 mfsmetalogger[690]: connection was reset by Master
May 11 00:16:40 backup0 mfsmetalogger[690]: connecting ...
May 11 00:16:40 backup0 mfsmetalogger[690]: connection failed, error: 
ECONNREFUSED (Connection refused)
May 11 00:16:41 backup0 kernel: [2881668.049752] mfsmetalogger[690]: 
segfault at 7f80a7e48f00 ip 00007f80a7b34f75 sp 00007ffffcb3daa0 error 7 
in libc-2.11.1.so[7f80a7acd000+17a000]


ii  mfs-metalogger                   1.6.20-2ubuntu1                   
MooseFS metalogger server
from:
deb http://ppa.launchpad.net/bncf-mnt/musa/ubuntu lucid main

Ubuntu 10.04 amd64

The master server is 11.04 with the same packages as above.

Is this a known bug?

Thank you,

tamas

Re: [Moosefs-users] segfault

[Giovanni T. <gt...@li...>]

Hi,

On 11/05/2011 01:07, Papp Tamas wrote:
> ii  mfs-metalogger                   1.6.20-2ubuntu1                   
> MooseFS metalogger server
> from:
> deb http://ppa.launchpad.net/bncf-mnt/musa/ubuntu lucid main
> 
> Ubuntu 10.04 amd64
> 
> The master server is 11.04 with the same packages as above.

Are you using 10.04 packages on 11.04? This isn't a so good thing. You
need to recompile the package on natty.

ps: I am the maintainer of that PPA, I haven't had any problems so far
on lucid nodes.

Bye.

-- 
Giovanni Toraldo
http://www.libersoft.it/

Re: [Moosefs-users] segfault

[Papp T. <to...@ma...>]

On 05/11/2011 11:19 AM, Giovanni Toraldo wrote:
> Are you using 10.04 packages on 11.04? This isn't a so good thing. You
> need to recompile the package on natty.

Still it's working with no prorblems. I don't want to touch it does not 
change.

> ps: I am the maintainer of that PPA, I haven't had any problems so far
> on lucid nodes.

Nice, thank you:)

tamas

Re: [Moosefs-users] segfault

[Papp T. <to...@ma...>]

On 05/11/2011 01:27 AM, Robert Dye wrote:
> Try running it in GDB to get more useful info for the developers:
>
> gdb mfsmetalogger
> (gdb)run -with-your-options
>
> When it segfaults you should be able to type
>
> bt
> info threads
>
> And resend for someone to help you quicker.

Thank you for your help.

Still I could not reproduce.

tamas