Gluster users - Jun 2014 - 3.5.0 distributed geo-replication & replica failure

Halloo,

My understanding is that if the active 3.5.0 geo-replication server goes
off-line, after approximately 60 seconds, the passive node should recognize
that and switch to active and pick up replicating data where the former
active geo-rep server left off.

That's not working for me. The passive node never starts geo-replicating.
"gluster volume <master_volume>
<slave_node>::<slave_volume> status detail"
from the passive node shows it just sitting there with status "Not
Started"
forever. As expected, the former active geo-rep server disappears from that
command's output when I shut it down.

Passwordless ssh connectivity and gverify.sh work from the passive node to
the slave.

Any advice on troubleshooting this?

Thanks much,

Doug
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Figured out my issue. Posting here just in case it's helpful to someone
else some day.

This was because passwordless ssh for the passive slave really wasn't setup
properly.

An invalid command restriction entry got put into the common_secret.pem.pub
file. Once I fixed that and copied it's contents to
/root/.ssh/authorized_keys on the slave it began working, and the geo-rep
satus showed it as "Passive."

The first line of bad authorized_key entry looked something like:
command="/usr/libexec/glusterfs/gsyncd"
 command="/usr/lib/x86_64-linux-gnu/glusterfs/gsyncd" ssh-rsa
AAAAB3NzaC

Changing it to
command="/usr/lib/x86_64-linux-gnu/glusterfs/gsyncd" ssh-rsa
AAAAB3NzaC

, after confirming that was the path to gsyncd on the slave, fixed the
 issue.

Thanks,

Doug


On Thu, Jun 19, 2014 at 5:53 PM, Doug Wilson <dwilson at customink.com>
wrote:
> Halloo,
>
> My understanding is that if the active 3.5.0 geo-replication server goes
> off-line, after approximately 60 seconds, the passive node should recognize
> that and switch to active and pick up replicating data where the former
> active geo-rep server left off.
>
> That's not working for me. The passive node never starts
geo-replicating.
> "gluster volume <master_volume>
<slave_node>::<slave_volume> status detail"
> from the passive node shows it just sitting there with status "Not
Started"
> forever. As expected, the former active geo-rep server disappears from that
> command's output when I shut it down.
>
> Passwordless ssh connectivity and gverify.sh work from the passive node to
> the slave.
>
> Any advice on troubleshooting this?
>
> Thanks much,
>
> Doug
>
>
>
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