Can anyone please help me understand this. Thank You
On Mon, Nov 16, 2015 at 5:55 PM, Vickey Singh <[email protected]> wrote: > Hello Community > > Need your help in understanding this. > > I have the below node, which is hosting 60 physical disks, running 1 OSD > per disk so total 60 Ceph OSD daemons > > *[root@node01 ~]# service ceph status | grep -i osd | grep -i running | wc > -l* > *60* > *[root@node01 ~]#* > > However if i check OSD processes it shows that there are 120 OSD process > are running. > > *[root@node01 ~]# ps -ef | grep -i osd | grep -v grep | wc -l* > *120* > *[root@node01 ~]#* > > *Question 1 : why its 120 processes ? , i it should be 60 (because of 60 > OSD on the system)* > My guess : is this because of multithreading ? > > Now if i check the number of ports used by OSD its comming out to be 240 > > *[root@node01 ~]# netstat -plunt | grep -i osd | wc -l* > *240* > *[root@node01 ~]#* > > *Question 2 : Now why its 240 ports ? It should be 60 ( because of 60 OSD > on the system)* > > If i grep a specific OSD port , its shows 2 ports are occupied by OSD > process 260519 > > *[root@node01 ~]# netstat -plunt | grep -i osd | grep -i 6819* > *tcp 0 0 10.101.50.1:6819 <http://10.101.50.1:6819> > 0.0.0.0:* LISTEN 260519/ceph-osd* > *tcp 0 0 10.102.50.1:6819 <http://10.102.50.1:6819> > 0.0.0.0:* LISTEN 260519/ceph-osd* > *[root@node01 ~]#* > > *Question 3 : Now based on the scenario 2 it should be 4 ( so 60 OSD x 4 > ports = 240 ports in total)* > > I have two public and cluster network configured in ceph.conf , is all > these because of two different networks ? > > *I would really appreciate if some knowledgeable person share his > understanding with me.* > > Thank you in advance. > > >
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