Re: rbd - input/output error

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On Mon, 14 Nov 2011, Mario van der Linde wrote:
> Hello,
> 
> On 14.11.2011 22:39, Sage Weil wrote:
> [...]
> >> This one gave me some output:
> >> rbd create testimg --size=10240 --log-to-stderr 2 --debug-ms 2
> >>
> >> See attached file.
> > 
> > It sounds like the OSD can't find the libcls_rbd.so file.  Can you verify 
> > that it is in /usr/lib/rados-classes, and that that location isn't be 
> > overridden by something in ceph.conf?
> 
> At first, on all Systems this file exists, but in /usr/lib64, not /usr/lib:
> > ceph5:~ # for f in `seq 1 5`; do ssh ceph${f} ls -l /usr/lib64/rados-classes; done | grep ' libcls_rbd.so '
> > lrwxrwxrwx 1 root root    19 Nov 10 10:15 libcls_rbd.so -> libcls_rbd.so.1.0.0
> > lrwxrwxrwx 1 root root    19 Nov 10 10:15 libcls_rbd.so -> libcls_rbd.so.1.0.0
> > lrwxrwxrwx 1 root root    19 Nov 10 10:16 libcls_rbd.so -> libcls_rbd.so.1.0.0
> > lrwxrwxrwx 1 root root    19 Nov 10 10:16 libcls_rbd.so -> libcls_rbd.so.1.0.0
> > lrwxrwxrwx 1 root root    19 Nov 10 10:16 libcls_rbd.so -> libcls_rbd.so.1.0.0
> 
> Seems to be the right place in an x86_64 system.

Argh... For now, just add
	osd class dir = /usr/lib64/rados-classes
and that will sort it out.  

My last attempt to make automake fill in the @libdirpath@ correctly in 
common/config_opts.h failed miserably, further entrenching my frustration 
with autotools.  It's bug http://tracker.newdream.net/issues/1614, if 
someone with better autotools-fu than I wants to fix this.  IIRC I tried a 
few different methods but could only make it substitute in @prefix@/lib64, 
but not /usr/lib64...

sage

> 
> In ceph.conf there is no setting regarding to lib path.
> 
> Is ceph-radosgw needed for rbd? I think not, while radosgw is AFAIK the
> REST interface...
> This package is not installed (due to a not resolveable cgi dependency).
> 
> 
> Regards
> Mario
> 
> 
> -- 
> Mario van der Linde
> Linux Consultant & Trainer
> Tel.: +49-151-16879485
> Mail: linde@xxxxxxxxxxxxx
> 
> B1 Systems GmbH
> Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
> GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537
> 
> 

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