On Sat, 20 May 2017 at 1:03 AM, Jim Goven <radu.gluster@xxxxxxxx> wrote:
Hello,
I would like to use glusterfs to replicate a volume between my desktop
and my laptop, so that when I am away from home (and likely
disconnected), I can still access some project files. The desktop is on
most of the time, but the laptop is rarely on.
I have successfully set up gluster to accomplish this goal, but I am
looking to improve the disconnected behaviour of the desktop.
While the laptop is disconnected (ie, most of the time), the desktop
continuously re-tries to connect to the laptop, but in doing so it
generates too much DNS traffic trying to find the laptop - it looks like
there is no retry delay at all. In turn, the gluster client log files
grow very fast, the DNS resolver logs also grow fast, and there is a lot
of unnecessary network chatter.
I would like to add a delay of between subsequent re-attempts to
reconnect, but I can't find any such option at
http://gluster.readthedocs.io/...Managing%20Volumes
The question is: Is there a way to slow down gluster's attempts to
reconnect?
I looked through the source as well, and I can't find a delay mechanism.
Ideally the reconnect attempts would follow an exponential back-off
schedule with a configurable maximum delay, but a fixed, configurable
delay would work too.
In case a developer reads this, I would be inclined in implementing
exponential backoff myself, and submitting a patch, but would appreciate
a brief advice of where in the codebase this backoff should be inserted.
Thanks for the offer. Check https://github.com/gluster/glusterfs/issues/152
Currently this is fixed number, you can either make it a xlator option or exponential backoff.
If you make it as xlator option, this should be in protocol/client codebase, and then handle it in rpc_clnt.c code.
Regards,
Amar
Thank you
jg
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Amar Tumballi (amarts)
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