On 18:21 Sun 05 May, Roman Penyaev wrote: > On 2019-05-04 17:12, Liu, Changcheng wrote: > > Hi Penyaev, > > Below code shows where fork is called(ceph commit head: 878e488be3) > > This line corresponds to daemonazation. Check global_init_prefork(), > if conf->daemonize == false then error is returned and fork() is not > called. So again I return to my question: why you do not want to leave > system tasks to systemd and invoke all ceph services with -f option? > What arch are you running on? I'm using ceph/src/vstart.sh to enable ceph/msg/async/rdma(iWARP) feature. The default method of running ceph-osd daemon is without "-f" option. I run ceph-osd daemon with "-f" option i.e. "vstart.sh --nodaemon", fork operation is avoided and ceph/msg/async/rdma(iWARP) could work now. > > -- > Roman