As a background, I believe LTTng-UST is disabled for RHEL7 in the Ceph project only due to the fact that EPEL 7 doesn't provide the required packages [1]. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1235461 -- Jason Dillaman ----- Original Message ----- > From: "Paul Mansfield" <paul.mansfield@xxxxxxxxxxxxxxxxxx> > To: ceph-users@xxxxxxxxxxxxxx > Sent: Tuesday, September 22, 2015 12:35:11 PM > Subject: Re: lttng duplicate registration problem when using librados2 and libradosstriper > > On 18/09/15 17:15, Paul Mansfield wrote: > > LTTng-UST: Error (-17) while registering tracepoint probe. Duplicate > > registration of tracepoint probes having the same name is not allowed. > > /bin/sh: line 1: 61001 Aborted (core dumped) ./$test > > I have made an interesting discovery. I was building my test program on > and for Red Hat Enterprise Linux version 6*, using the rpm files with > version -0.94.3-0.el6.x86_64. This gives me the lttng clash. > > > I then took a RHEL7.1 box and build my test program against the el7 > versions of the packages (namely 0.94.3-0.el7.x86_64) and it works just > fine, no problems with lttng clashes at all. > > > When I examine the libraries for differences using ldd, I find that the > el7 versions don't need lttng at all, but the el6 do. > > > So it appears that the el6 libraries had -WITH-LTTNG enabled when they > were built, but the el7 don't. > > > I've tried building ceph from sources on centos6 to get a copy of the > libraries without lttng. I've tried both git cloning the hammer branch, > or downloading the .tar.bz2 and using rpmbuild as per the wiki, but > neither work, something always fails critically along the way :-( > > > > * this target platform is already chosen, I can't change it, I'd like to > switch to RHEL7 but sadly can't. > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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