[ovs-discuss] [OVN] HA about OVN DB servers

taoyunupt taoyunupt at 126.com
Thu Aug 8 10:14:39 UTC 2019


Hi,Numan,
      Thanks for you reply. Do you have advice for choosing which proxy software for OVN DB servers?


                                                                     proxy software
                                                                              |
                                                                              |
                                           -------------------------------------------------------------- 
                                           |                                   |                                     |
                                      OVN DB                      OVN DB                       OVN DB




Thanks,
Yun






在 2019-08-07 22:46:39,"Numan Siddique" <nusiddiq at redhat.com> 写道:





On Wed, Aug 7, 2019 at 3:04 PM taoyunupt <taoyunupt at 126.com> wrote:

Hi,Numan,Lucas,
     Does OVN support that one Northbound DB associated server Southbound DBs, to overcome performance bottleneck of Southbound DB.The frame just as the following pic.
      What is the plan of multi-master cluster of OVN DB servers? 


                                                                           CMS 
                                                                              |
                                                                              |
                                                                    Northbound DB
                                                                              |
                                                                              |
                                           -------------------------------------------------------------- 
                                           |                                   |                                     |
                              Southbound DB            Southbound DB            Southbound DB
                                           |                                   |                                     |
                               chassis nodes              chassis nodes                 chassis nodes  
     
Thanks,
Yun




Hi Yun,


OVN at this point doesn't support the model you described above.


ovsdb-server support RAFT with which you can have active/active deployment of OVN DB servers.
Is that what you are looking at in a multi-master cluster ? Please take a look at "man ovn-ctl" for more details on
how active/active cluster can be setup.


With the commit [1], OVN supports transport zones. I am not sure if you are looking for this feature though.


[1] - https://github.com/openvswitch/ovs/commit/3bb479d9aa52f0a25e941bb3156b5fc4ddca3c8c 


Thanks
Numan
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