[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Gluster-devel] Master-master geo-replication
From: |
Tomas Bures |
Subject: |
[Gluster-devel] Master-master geo-replication |
Date: |
Sat, 28 Dec 2013 14:00:54 +0100 |
User-agent: |
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
Dear all,
I would like to ask if there are any plans for master-master
geo-replication (i.e. asynchronous bi-directional replication)? I've
seen it in the initial feature list for 3.4. As fas as I understand, it
was then removed. It did not appear in features for 3.5.
If the completely asychronous bi-directional replication is too
difficult, I would see as an option to use normal replication. For
instance for CMS deployment (e.g. Drupal), writes are really scarce and
reads can be served from the local replica, which means, it should be
possible to use this even in multi-site deployment with relatively high
latencies between the sites. A problem though is that lookup (in
xlators/cluster/afr) queries all bricks, which means that when opening a
file for reading, one incurs the latency penalty. So here comes my
second question - would it be possible to have the lookup served only
locally? Of course, I'm not sure what it would do with ensuring the
consistency and self-healing.
Thank you. Best,
Tomas
--
Tomas Bures, Ph.D.
Associate Professor
Department of Distributed and Dependable Systems
Charles University
Malostranske nam.25
11800 Prague 1, Czech Republic
http://d3s.mff.cuni.cz
Phone: (+420) 2 2191 4236
Fax: (+420) 2 2191 4323
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Gluster-devel] Master-master geo-replication,
Tomas Bures <=