[ClusterLabs] What's wrong with IPsrcaddr?

[ZZ Wave]

> Define "network connectivity to node2".

pacemaker instances can reach each other, I think. In case of connectivity
loss (turn off network interface manually, disconnect eth cable etc), it
should turn off virtsrc and then virtip on active node, turn virtip on and
then virtsrc on second node, and vice-versa. IPaddr2 alone works fine this
way "out of a box", but IPsrcaddr doesn't :(

Is my setup correct for this anyway? Howtos and google give me only "just
add both resources to group or to colocation+order and that's all", but it
definitely doesn't work the way I expect.

> What are static IPs?

node1 192.168.80.21/24
node2 192.168.80.22/24
floating 192.168.80.23/24
gw 192.168.80.1

> I do not see anything wrong here.

Let me explain. After initial setup, virtip and virtsrc successfully apply
on node1. There are both .23 alias and def route src. After a network
failure, there is NO default route at all on both nodes and IPsrcaddr
fails, as it requires default route.


ср, 16 мар. 2022 г. в 19:23, Andrei Borzenkov <arvidjaar at gmail.com>:

> On 16.03.2022 12:24, ZZ Wave wrote:
> > Hello. I'm trying to implement floating IP with pacemaker but I can't
> > get IPsrcaddr to work correctly. I want a following thing - floating
> > IP and its route SRC is started on node1. If node1 loses network
> > connectivity to node2, node1 should instantly remove floating IP and
> > restore default route,
>
> Define "network connectivity to node2".
>
> > node2 brings these things up. And vice-versa when node1 returns.
> > Static IPs should be intact in any way.
> >
>
> What are static IPs?
>
> > What I've done:
> >
> > pcs host auth node1 node2
> > pcs cluster setup my_cluster node1 node2 --force
> > pcs cluster enable node1 node2
> > pcs cluster start node1 node2
> > pcs property set stonith-enabled=false
> > pcs property set no-quorum-policy=ignore
> > pcs resource create virtip ocf:heartbeat:IPaddr2 ip=192.168.80.23
> > cidr_netmask=24 op monitor interval=30s
> > pcs resource create virtsrc ocf:heartbeat:IPsrcaddr
> > ipaddress=192.168.80.23 cidr_netmask=24 op monitor interval=30
> > pcs constraint colocation add virtip with virtsrc
> > pcs constraint order virtip then virtsrc
> >
> > It sets IP and src correctly on node1 one time after this setup, but
> > in case of failover to node2 a havoc occurs -
>
> Havoc is not useful technical description. Explain what is wrong.
>
> > https://pastebin.com/GZMtG480
> >
> > What's wrong?
>
> You tell us. I do not see anything wrong here.
>
> > Help me please :)
> >
> >
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