[Gluster-users] Graceful shutdown doesn't stop all Gluster processes

Aravinda aravinda at kadalu.tech
Mon Feb 5 19:09:08 UTC 2024

Hi Anant,

It was intentional design decision to not stop any gluster processes if Glusterd need to be upgraded or if Glusterd crashes. Because of this Volume availability will not be affected if any issues with Glusterd or Glusterd is upgraded. All the mounts will reconnect once the Glusterd comes back up. CLI operations from that node may not be available but IO will not be affected if the Glusterd is down (New mounts can't be created, but existing mounts should work without Glusterd).

stop-all-gluster-processes.sh is available as part of installation, it can be used to stop all the processes (Check in /usr/share/glusterfs/scripts)


Thanks and Regards

Kadalu Technologies

---- On Mon, 05 Feb 2024 22:40:30 +0530 Anant Saraswat <anant.saraswat at techblue.co.uk> wrote ---

Hello Everyone,

I am using GlusterFS 9.4, and whenever we
 use the systemctl command to stop the Gluster server, it leaves many Gluster processes running. So, I just want to check how to shut down the Gluster server in a graceful manner.

Is there any specific sequence or trick I need to follow? Currently, I am using the following command:

[root at master2 ~]# systemctl stop glusterd.service

[root at master2 ~]# ps aux | grep gluster

root     2710138 14.1  0.0 2968372 216852 ?      Ssl  Jan27 170:27 /usr/sbin/glusterfsd -s master2 --volfile-id
 tier1data.master2.opt-tier1data2019-brick -p /var/run/gluster/vols/tier1data/master2-opt-tier1data2019-brick.pid -S /var/run/gluster/97da28e3d5c23317.socket --brick-name /opt/tier1data2019/brick -l /var/log/glusterfs/bricks/opt-tier1data2019-brick.log --xlator-option
 *-posix.glusterd-uuid=c1591bde-df1c-41b4-8cc3-5eaa02c5b89d --process-name brick --brick-port 49152 --xlator-option tier1data-server.listen-port=49152

root     2710196  0.0  0.0 1298116 11544 ?       Ssl  Jan27   0:01 /usr/sbin/glusterfs -s localhost --volfile-id
 shd/tier1data -p /var/run/gluster/shd/tier1data/tier1data-shd.pid -l /var/log/glusterfs/glustershd.log -S /var/run/gluster/1ac2284f75671ffa.socket --xlator-option *replicate*.node-uuid=c1591bde-df1c-41b4-8cc3-5eaa02c5b89d --process-name glustershd --client-pid=-6

root     3730742  0.0  0.0 288264 14388 ?        Ssl  18:44   0:00 /usr/bin/python3 /usr/libexec/glusterfs/python/syncdaemon/gsyncd.py
 --path=/opt/tier1data2019/brick  --monitor -c /var/lib/glusterd/geo-replication/tier1data_drtier1data_drtier1data/gsyncd.conf --iprefix=/var :tier1data --glusterd-uuid=c1591bde-df1c-41b4-8cc3-5eaa02c5b89d drtier1data::drtier1data

root     3730763  2.4  0.0 2097216 35904 ?       Sl   18:44   0:09 python3 /usr/libexec/glusterfs/python/syncdaemon/gsyncd.py
 worker tier1data drtier1data::drtier1data --feedback-fd 9 --local-path /opt/tier1data2019/brick --local-node master2 --local-node-id c1591bde-df1c-41b4-8cc3-5eaa02c5b89d --slave-id eca32e08-c3f8-4883-bef5-84bfb89f4d56 --subvol-num 1 --resource-remote drtier1data
 --resource-remote-id 28f3e75b-56aa-43a1-a0ea-a0e5d44d59ea

root     3730768  0.7  0.0  50796  9668 ?        S    18:44   0:02 ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no
 -i /var/lib/glusterd/geo-replication/secret.pem -p 22 -oControlMaster=auto -S /tmp/gsyncd-aux-ssh-ep7a14up/75785990b3233f5dbbab9f43cc3ed895.sock drtier1data /nonexistent/gsyncd slave tier1data drtier1data::drtier1data --master-node master2 --master-node-id
 c1591bde-df1c-41b4-8cc3-5eaa02c5b89d --master-brick /opt/tier1data2019/brick --local-node drtier1data --local-node-id 28f3e75b-56aa-43a1-a0ea-a0e5d44d59ea --slave-timeout 120 --slave-log-level INFO --slave-gluster-log-level INFO --slave-gluster-command-dir
 /usr/sbin --master-dist-count 1

root     3730795  1.1  0.0 1108268 55596 ?       Ssl  18:44   0:04 /usr/sbin/glusterfs --aux-gfid-mount --acl
 --log-level=INFO --log-file=/var/log/glusterfs/geo-replication/tier1data_drtier1data_drtier1data/mnt-opt-tier1data2019-brick.log --volfile-server=localhost --volfile-id=tier1data --client-pid=-1 /tmp/gsyncd-aux-mount-9210kh43

root     3772665  0.0  0.0  12208  2400 ?        S    18:51   0:00 rsync -aR0 --inplace --files-from=- --super
 --stats --numeric-ids --no-implied-dirs --existing --xattrs --acls --ignore-missing-args . -e ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no -i /var/lib/glusterd/geo-replication/secret.pem -p 22 -oControlMaster=auto -S /tmp/gsyncd-aux-ssh-ep7a14up/75785990b3233f5dbbab9f43cc3ed895.sock

root     3772667  0.0  0.0  44156  5640 ?        S    18:51   0:00 ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no
 -i /var/lib/glusterd/geo-replication/secret.pem -p 22 -oControlMaster=auto -S /tmp/gsyncd-aux-ssh-ep7a14up/75785990b3233f5dbbab9f43cc3ed895.sock drtier1data rsync --server -logDtpAXRe.LsfxC --super --stats --numeric-ids --existing --inplace --no-implied-dirs
 . /proc/897118/cwd

For now, We are using https://github.com/gluster/glusterfs/blob/master/extras/stop-all-gluster-processes.sh to kill all the remaining processes.



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