Re: lltng enabled by default and qemu apparmor|selinux problems

[Alexandre DERUMIER <aderumier@odiso.com>]

>>I have an open PR [1] to dynamically enable LTTng-UST via new config options

Great ,Thanks Jason !



----- Mail original -----
De: "Jason Dillaman" <dillaman@redhat.com>
À: "Paul HEWLETT (Paul)" <paul.hewlett@alcatel-lucent.com>
Cc: "aderumier" <aderumier@odiso.com>, "ceph-devel" <ceph-devel@vger.kernel.org>, "Sage Weil" <sweil@redhat.com>
Envoyé: Lundi 12 Octobre 2015 20:32:43
Objet: Re: lltng enabled by default and qemu apparmor|selinux problems

I have an open PR [1] to dynamically enable LTTng-UST via new config options. This change will hopefully trickle down to older release and will avoid the SElinux / AppArmor issues in the default case (which led to downstream Ubuntu and Fedora disabling LTTng-UST support). Anyone that wants to use LTTng-UST (i.e. for generating RBD replay traces) can enable the support and adjust their SElinux / AppArmor rules to accommodate. 

[1] https://github.com/ceph/ceph/pull/6135 

-- 

Jason Dillaman 


----- Original Message ----- 
> From: "Paul HEWLETT (Paul)" <paul.hewlett@alcatel-lucent.com> 
> To: "Alexandre DERUMIER" <aderumier@odiso.com>, "ceph-devel" <ceph-devel@vger.kernel.org> 
> Cc: "Sage Weil" <sweil@redhat.com> 
> Sent: Monday, October 12, 2015 4:28:06 AM 
> Subject: Re: lltng enabled by default and qemu apparmor|selinux problems 
> 
> IF I can add my $0.02 - we were unable to use the libradosstriper library in 
> RHEL6 because it uses the same initialisation tags as librados and lttng 
> does not like that. We had no problems with RHEL7 version of ceph because 
> lttng is not enabled. Please do not re-enable lttng in RHEL7 and later 
> branches…. 
> 
> Regards 
> Paul 
> 
> 
> 
> 
> On 11/10/2015 18:06, "ceph-devel-owner@vger.kernel.org on behalf of Alexandre 
> DERUMIER" <ceph-devel-owner@vger.kernel.org on behalf of 
> aderumier@odiso.com> wrote: 
> 
> >Hi, 
> > 
> >it seem that since this commit 
> > 
> >https://github.com/ceph/ceph/pull/4261/files 
> > 
> >lltng is enabled by default. 
> > 
> >But this give error with qemu when apparmor|selinux is enabled. 
> > 
> >That's why ubuntu && redhat now disable it for their own packages. 
> > 
> >https://bugzilla.redhat.com/show_bug.cgi?id=1223319 
> >https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1432644 
> > 
> >In the ubuntu launchpad, Sage has made a reply 
> > 
> >" 
> >Sage Weil (sage-newdream) wrote on 2015-04-02: #21 
> >FWIW, we are disabling the lttng support in the final hammer release to 
> >avoid this issue (until we come up with a better solution)." 
> > 
> > 
> >It seem that it's still enabled by default in ceph git and ceph.com 
> >packages. 
> > 
> >Is it still planned to disable by default ? 
> > 
> > 
> > 
> >-- 
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