On Mon, Jul 26, 2010 at 09:55:53PM +0900, Junko IKEDA wrote:
> Hi,
>
> > If sockets fail in some detectable (by tcp) fashion,
> > (RST, icmp unreachable or similar),
> > both sockets are dropped.
> >
> > Replication is only reestablished once both sockets
> > have successfully be reestablished.
>
Hi,
> If sockets fail in some detectable (by tcp) fashion,
> (RST, icmp unreachable or similar),
> both sockets are dropped.
>
> Replication is only reestablished once both sockets
> have successfully be reestablished.
>
> If sockets fail in some "strange" way (no RST, no icmp,
> just a black hole
On Sun, Jul 25, 2010 at 01:38:56AM +0900, Junko IKEDA wrote:
> Hi,
>
> >> > DRBD has _two_ tcp sessions per device,
> >> > one end will have a "random high port",
> >> > the end the configured port.
> >>
> >> Are these two sessions for "data" and "meta" socket as you mentioned below?
> >> I think
Hi,
>> > DRBD has _two_ tcp sessions per device,
>> > one end will have a "random high port",
>> > the end the configured port.
>>
>> Are these two sessions for "data" and "meta" socket as you mentioned below?
>> I think I want to simulate the blocking of "meta" socket.
>
> Ah. Why?
> Please step
On Sat, Jul 24, 2010 at 12:13:01AM +0900, Junko IKEDA wrote:
> Hi,
>
> >> (1) start DRBD.
> >> node01 is "Primary" and node02 is "Secondary".
> >> (2) block the replication port on node02.
> >> # iptables -A INPUT -i bond0 -p tcp --dport 7790 -j DROP
> >
> > insufficient.
> > you have to
Hi,
>> (1) start DRBD.
>> node01 is "Primary" and node02 is "Secondary".
>> (2) block the replication port on node02.
>> # iptables -A INPUT -i bond0 -p tcp --dport 7790 -j DROP
>
> insufficient.
> you have to block OUTPUT as well.
Blocking both INPUT and OUTPUT goes to split brain, doe
On Fri, Jul 23, 2010 at 06:15:05PM +0900, Junko IKEDA wrote:
> Hi,
>
> I'm trying the following test.
>
> (1) start DRBD.
> node01 is "Primary" and node02 is "Secondary".
> (2) block the replication port on node02.
> # iptables -A INPUT -i bond0 -p tcp --dport 7790 -j DROP
insufficient
Hi,
I'm trying the following test.
(1) start DRBD.
node01 is "Primary" and node02 is "Secondary".
(2) block the replication port on node02.
# iptables -A INPUT -i bond0 -p tcp --dport 7790 -j DROP
the result is;
* protocol B,C
DRBD did nothing.
* protocol A
It seems that DRBD restart
