On Fri, Sep 14, 2018 at 3:48 AM kefu chai <tchaikov@xxxxxxxxx> wrote:
>
> hi ceph-{maintainers,users,developers},
>
> recently, i ran into an issue[0] which popped up when we build Ceph on
> centos 7.5, but test it on centos 7.4. as we know, the gperftools-libs
> package provides the tcmalloc allocator shared library, but centos 7.4
> and centos 7.5 ship different version of gperftools-{devel,libs}. the
> former ships 2.4, and the latter 2.6.1.
>
> the crux is that the tcmalloc in gperftools 2.6.1 implements more
> standard compliant C++ APIs, which were missing in gperftools 2.4.
> that's why we have failures like:
>
> ceph-osd: symbol lookup error: ceph-osd: undefined symbol: _ZdaPvm
>
> when testing Ceph on centos 7.4.
>
> my question is: is it okay to drop the support of centos/rhel 7.4? so
> we will solely build and test the supported Ceph releases (luminous,
> mimic) on 7.5 ?
My preference would be to target the latest minor release (i.e. 7.5)
of the major release. We don't test on CentOS 7.1, 7.2 etc, so I
don't think we need to give 7.4 any special treatment.
John
>
> thanks,
>
> --
> [0] http://tracker.ceph.com/issues/35969
>
> --
> Regards
> Kefu Chai
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