Hi,Aliasgar,
Maybe I need to tell you the way how I deployed the RAFT
cluster, to make you understand my situation. I have 3 servers ,IPs are
192.5.0.8, 192.5.0.9, 192.5.0.10.
After reading my steps,you may know why my RAFT cluste do
not have output of "ovn-sbctl get-connection",but It also works most of time.
If the way I used to deployed cluster is not good , please
point it out. Thanks very much.
1.First step to create cluster by ovsdb-tool commands
Create a cluster on the first node, and the IP address
of this node is 192.5.0.8
# ovsdb-tool create-cluster /etc/openvswitch/ovnsb_db.db
/usr/share/openvswitch/ovn-sb.ovsschema tcp:192.5.0.8:6644
# ovsdb-tool create-cluster /etc/openvswitch/ovnnb_db.db
/usr/share/openvswitch/ovn-nb.ovsschema tcp:192.5.0.8:6643
Join the cluster on the second node, and the IP address
of this node is 192.5.0.9
# ovsdb-tool join-cluster /etc/openvswitch/ovnsb_db.db
OVN_Southbound tcp:192.5.0.9:6644 tcp:192.5.0.8:6644 tcp:192.5.0.10:6644
# ovsdb-tool join-cluster /etc/openvswitch/ovnnb_db.db
OVN_Northbound tcp:192.5.0.9:6643 tcp:192.5.0.8:6643 tcp:192.5.0.10:6643
Join the cluster on the third node, and the IP address of
this node is 192.5.0.10
#ovsdb-tool join-cluster /etc/openvswitch/ovnsb_db.db
OVN_Southbound tcp:192.5.0.10:6644 tcp:192.5.0.8:6644 tcp:192.5.0.9:6644
#ovsdb-tool join-cluster /etc/openvswitch/ovnnb_db.db
OVN_Northbound tcp:192.5.0.10:6643 tcp:192.5.0.8:6643 tcp:192.5.0.9:6643
2.Second step to conifg cluster
Edit the / etc / sysconfig / ovn-northd file of each node,
add the OVN_NORTHD_OPTS option and content,
The IP of first node is 192.5.0.8, the added content
is,Other nodes are similar:
OVN_NORTHD_OPTS="--db-nb-addr=192.5.0.8
--db-nb-create-insecure-remote=yes --db-sb-addr=192.5.0.8 \
--db-sb-create-insecure-remote=yes --db-nb-cluster-local-addr=192.5.0.8
--db-sb-cluster-local-addr=192.5.0.8
--ovn-northd-nb-db=tcp:192.5.0.8:6641,tcp:192.5.0.9:6641,tcp:192.5.0.10:6641 \
--ovn-northd-sb-db=tcp:192.5.0.8:6642,tcp:192.5.0.9:6642,tcp:192.5.0.10:6642"
3.Third step to start cluster
Execute the following command to start the cluster
#systemctl restart openvswitch ovn-northd
Regards,
Yun
在 2020-02-07 22:45:36，"taoyunupt" <[email protected]> 写道：
Hi,Aliasgar,
Thanks for your reply. I have tried your suggestion. But I
found that it just could create one NB connection or one SB connection. In
RAFT, we need at least two.
That means the output of 'ovn-nbctl get-connection' has two
lines. What do you think if I want to fix this problem?
May be you don't need to consider how to have two connections
for NB. Actually, I want to know how to solve the "inactivity_probe" problem.
Regards,
Yun
At 2020-02-07 03:05:37, "aginwala" <[email protected]> wrote:
Hi Yun:
For changing inactivity probe which is 5 sec default, you need to create
connection entry both for sb and nb db.
ovn-nbctl -- --id=@conn_uuid create Connection \
target="<ptcp/ssl>\:<your-pord>\:<vip-ip>" \
inactivity_probe=<value> -- set NB_Global . connections=@conn_uuid
ovn-nbctl set connection . inactivity_probe=<value> will then work!
To tune the election timer for raft on say nb db, you can tune with below
command:
ovs-appctl -t /var/run/openvswitch/ovnnb_db.ctl cluster/change-election-timer
OVN_Northbound <value>
You can run similar settings for sb db for tuning the value
On Wed, Feb 5, 2020 at 4:00 AM taoyunupt <[email protected]> wrote:
Hi,Numan,
I happend the problem that there are frequently elections in
RAFT cluster members . I think it was cause by the not good connection between
members of RARF cluster. As the log shows.
Becase the output of "ovn-sbctl get-connection" is none in
RAFT cluster member, So the command "ovn-sbctl set connection .
inactivity_probe=180000" not works.
Do you know how to set "inactivity_probe" when we use RAFT
cluster? It will be appreciateed if you have more suggestions.
2020-02-05T01:37:29.178Z|03424|reconnect|ERR|tcp:10.254.8.210:52048: no
response to inactivity probe after 5 seconds, disconnecting
2020-02-05T01:37:30.519Z|03425|raft|INFO|tcp:10.xxx.8.210:59300: learned server
ID cdec
2020-02-05T01:37:30.519Z|03426|raft|INFO|tcp:10.xxx.8.210:59300: learned remote
address tcp:10.254.8.210:6643
2020-02-05T03:52:02.791Z|03427|raft|INFO|received leadership transfer from 3e2e
in term 64
2020-02-05T03:52:02.791Z|03428|raft|INFO|term 65: starting election
2020-02-05T03:52:02.792Z|03429|reconnect|INFO|tcp:10.xxx.8.208:6643: connection
closed by peer
2020-02-05T03:52:02.869Z|03430|raft|INFO|term 65: elected leader by 2+ of 3
servers
2020-02-05T03:52:03.210Z|03431|raft|INFO|tcp:10.xxx.8.208:46140: learned server
ID 3e2e
2020-02-05T03:52:03.210Z|03432|raft|INFO|tcp:10.xxx.8.208:46140: learned remote
address tcp:10.xxx.8.208:6643
2020-02-05T03:52:03.793Z|03433|reconnect|INFO|tcp:10.254.8.208:6643:
connecting...
2020-02-05T03:52:03.793Z|03434|reconnect|INFO|tcp:10.254.8.208:6643: connected
Thanks,
Yun
_______________________________________________
discuss mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
_______________________________________________
discuss mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
