Don’t have any experience with this. But undefined symbol means a dynamic 
linker issue. The plunging looks like it can’t find some ceph library. 

Find what library provides ceph_create make sire it’s installed on the host 
with the fd. If it’s there check the environment that the fd starts in 
LD_LIBRARY_PATH env var includes that path. Might start the fd manually with 
that env to test before getting into init/systemd debugging. 

Sometime etc/ld.so.conf Is used In place of the variable. 

Sent from my iPhone
Brock Palen
989-277-6075

> On May 19, 2020, at 4:44 AM, 'Kunesch' via bareos-users 
> <[email protected]> wrote:
> 
> 
> Hello everyone,
> 
> i want to backup a Ceph_FS filesystem, but the Bareos-FD service crashes 
> during backup, i could only find the following message via debug log:
> 
> 19-May-2020 10:39:15.463196 kmh-mb-001-fd (50): findlib/find.cc:172-3258 
> Verify=<VVpin5> Accurate=<Cmcs> BaseJob=<Jpmugcs5> flags=<-134135592>
> 19-May-2020 10:39:15.463225 kmh-mb-001-fd (450): findlib/find.cc:193-3258 
> PluginCommand: cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs:
> 19-May-2020 10:39:15.463254 kmh-mb-001-fd (150): filed/fd_plugins.cc:523-3258 
> plugin cmd=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs:
> 19-May-2020 10:39:15.463269 kmh-mb-001-fd (100): lib/bsock.cc:89-0 Copy 
> Contructor BareosSocket
> 19-May-2020 10:39:15.463274 kmh-mb-001-fd (150): filed/fd_plugins.cc:691-3258 
> plugin=python-fd.so plen=6 
> cmd=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6
> 19-May-2020 10:39:15.463331 kmh-mb-001-fd (150): filed/fd_plugins.cc:226-3258 
> name=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6 
> plugin=python-fd.so plen=6
> 19-May-2020 10:39:15.463361 kmh-mb-001-fd (150): filed/fd_plugins.cc:691-3258 
> plugin=bpipe-fd.so plen=5 
> cmd=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6
> 19-May-2020 10:39:15.463393 kmh-mb-001-fd (150): filed/fd_plugins.cc:226-3258 
> name=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6 
> plugin=bpipe-fd.so plen=5
> 19-May-2020 10:39:15.463421 kmh-mb-001-fd (150): filed/fd_plugins.cc:691-3258 
> plugin=cephfs-fd.so plen=6 
> cmd=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6
> 19-May-2020 10:39:15.463453 kmh-mb-001-fd (150): filed/fd_plugins.cc:226-3258 
> name=cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs: len=6 
> plugin=cephfs-fd.so plen=6
> 19-May-2020 10:39:15.463320 19-May-2020 10:39:15.463463 kmh-mb-001-fd (100): 
> lib/bsock.cc:89-0 Copy Contructor BareosSocket
> kmh-mb-001-fd (150): filed/fd_plugins.cc:711-3258 Command plugin = 
> cephfs:conffile=/etc/ceph/ceph.conf:basedir=dovecot_fs:
> bareos-fd: symbol lookup error: /usr/lib/bareos/plugins/cephfs-fd.so: 
> undefined symbol: ceph_create
> 
> 
> The environment is:
> OS: Debian 10.4 
> Ceph: "ceph version 14.2.9 (2afdc1f644870fb6315f25a777f9e4126dacc32d) 
> nautilus (stable)
> Bareos: 19.2.7 (16Apr20) Linux-3.10.0-1062.18.1.el7.x86_64,debian,Debian 
> GNU/Linux 10 (buster) 
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