[Gluster-users] Geo-replication slaves are faulty after startup

Aravinda avishwan at redhat.com
Mon Nov 28 08:14:31 UTC 2016


Following command should be run after the Geo-rep create push-pem step

/usr/libexec/glusterfs/set_geo_rep_pem_keys.sh geoaccount gv0 gv0

Please run that command in any one of the slave node and observe the 
Geo-replication status.

Admin guide: 
http://gluster.readthedocs.io/en/latest/Administrator%20Guide/Geo%20Replication/

regards
Aravinda

On 11/26/2016 02:33 AM, Alexandr Porunov wrote:
> Hello,
>
> I want to create geo replication between two volumes. Volumes works 
> just fine. But geo-replication doesn't work at all.
>
> My master volume nodes are:
> 192.168.0.120
> 192.168.0.121
> 192.168.0.122
>
> My slave volume nodes are:
> 192.168.0.123
> 192.168.0.124
> 192.168.0.125
>
> My OS is: CentOS 7
> I am running GlusterFS 3.8.5
>
> Here is the status of geo-replication session:
> # gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 status
> MASTER NODE      MASTER VOL    MASTER BRICK        SLAVE USER    SLAVE 
>                            SLAVE NODE STATUS    CRAWL STATUS       
> LAST_SYNCED
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------
> 192.168.0.120    gv0           /data/brick1/gv0  geoaccount   
>  geoaccount at 192.168.0.123::gv0    192.168.0.123    Active    Changelog 
> Crawl    2016-11-25 22:25:12
> 192.168.0.121    gv0           /data/brick1/gv0  geoaccount   
>  geoaccount at 192.168.0.123::gv0    N/A    Faulty    N/A                N/A
> 192.168.0.122    gv0           /data/brick1/gv0  geoaccount   
>  geoaccount at 192.168.0.123::gv0    N/A    Faulty    N/A                N/A
>
>
> I don't understand why it doesn't work. Here are interesting log files 
> from the master node (192.168.0.120):
> /var/log/glusterfs/etc-glusterfs-glusterd.vol.log - 
> http://paste.openstack.org/show/590503/
>
> /var/log/glusterfs/mnt.log - http://paste.openstack.org/show/590504/
>
> /var/log/glusterfs/run-gluster-shared_storage.log - 
> http://paste.openstack.org/show/590505/
>
> /var/log/glusterfs/geo-replication/gv0/ssh%3A%2F%2Fgeoaccount%40192.168.0.123%3Agluster%3A%2F%2F127.0.0.1%3Agv0.log 
> - http://paste.openstack.org/show/590506/
>
> Here is a log file from the slave node (192.168.0.123):
> /var/log/glusterfs/geo-replication-slaves/5afe64e3-d4e9-452b-a9cf-10674e052616\:gluster%3A%2F%2F127.0.0.1%3Agv0.gluster.log 
>  - http://paste.openstack.org/show/590507/
>
> Here is how I have created a session:
> On slave nodes:
> useradd geoaccount
> groupadd geogroup
> usermod -a -G geogroup geoaccount
> usermod -a -G geogroup root
> passwd geoaccount
> mkdir -p /var/mountbroker-root
> chown root:root -R /var/mountbroker-root
> chmod 0711 -R /var/mountbroker-root
> chown root:geogroup -R /var/lib/glusterd/geo-replication/*
> chmod g=rwx,u=rwx,o-rwx -R /var/lib/glusterd/geo-replication/*
>
> On the slave (192.168.0.123):
> gluster system:: execute mountbroker opt mountbroker-root 
> /var/mountbroker-root
> gluster system:: execute mountbroker opt geo-replication-log-group 
> geogroup
> gluster system:: execute mountbroker opt rpc-auth-allow-insecure on
> gluster system:: execute mountbroker user geoaccount gv0
> /usr/libexec/glusterfs/set_geo_rep_pem_keys.sh geoaccount gv0 gv0
> gluster volume set all cluster.enable-shared-storage enable
>
> Then I have restarted all the slaves:
> systemctl restart glusterd
>
> On the master node (192.168.0.120):
> ssh-keygen
> ssh-copy-id geoaccount at 192.168.0.123 <mailto:geoaccount at 192.168.0.123>
> gluster system:: execute gsec_create container
> gluster volume set all cluster.enable-shared-storage enable
> gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 
> create ssh-port 22 push-pem
> gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 
> config remote-gsyncd /usr/libexec/glusterfs/gsyncd
> gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 
> config use-meta-volume true
> gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 
> config sync-jobs 3
> gluster volume geo-replication gv0 geoaccount at 192.168.0.123::gv0 start
>
> Does somebody know what is wrong with this installation? I tried to 
> install geo-replication for several times but without success.. Please 
> help me
>
> Sincerely,
> Alexandr
>
>
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