On Fri, Aug 23, 2019 at 09:29:00PM +0000, Ginwala, Aliasgar wrote:
> Hi Ben:
>
> It seems ovsdb-client backup does conversion for openvswitch databases and
> not OVN dbs:
> $ovsdb-client backup > standalone_db.db
>
> When trying for ovnnb dbs, it keeps complaining about syntax error. May be I
> miss something
> ovsdb-client backup /var/run/openvswitch/ovnnb_db.sock
> /etc/openvswitch/ovnnb_db.db > test1.db
> ovsdb-client: invalid syntax for 'backup' (use --help for help)
ovsdb-client is definitely biased in favor of the Open_vSwitch database.
It recognizes server names based on the syntax for connections, which
always includes ":", so you would need to say
"unix:/var/run/openvswitch/ovnnb_db.sock" as the server name.
> However, I checked code and it doesn’t accept args as per code below in
> ovsdb_client_command
> { "backup", NEED_DATABASE, 0, 0, do_backup },
It doesn't accept args beyond an optional server name and database name,
which NEED_DATABASE indicates.
> Also, for ovn control plane nodes, we don’t have/need to run ovs on the
> control plane nodes.
> As I didn’t have ovs running on my control plane nodes, it complained about
> the same.
> ovsdb-client: failed to connect to "unix:/var/run/openvswitch/db.sock" (No
> such file or directory)
> Only works if I start ovs and then run the command.
>
> So I think current doc itself needs update if I hope I didn’t miss anything
> trivial.
> Let me know and I can send formal patch to correct existing doc.
If the documentation isn't clear, let's improve it.
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