This patch to the cli enables a very simple replica 1 mirror creation
(similar to the "missing" attribute for mdadm RAID1 creation).
It will likely need additional supporting work in add-brick so that
incomplete mirrors are assembled correctly for distributed-replicated cases.
Building/Assembling an incomplete mirror is an important capability
needed for a number of use cases.
--
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics, Inc.
email: landman@xxxxxxxxxxxxxxxxxxxxxxx
web : http://scalableinformatics.com
http://scalableinformatics.com/sicluster
phone: +1 734 786 8423 x121
fax : +1 866 888 3112
cell : +1 734 612 4615
--- a/glusterfs-3.1.3/cli/src/cli-cmd-parser.c 2011-05-28 08:15:39.000000000 -0500
+++ b/glusterfs-3.1.3/cli/src/cli-cmd-parser.c 2011-05-28 08:20:08.000000000 -0500
@@ -115,8 +115,14 @@
goto out;
}
count = strtol (words[4], NULL, 0);
- if (!count || (count < 2)) {
- cli_out ("replica count should be greater than 1");
+/*
+ enable creation of a single 'replica', basically a mirrored
+ volume without a second mirror. The idea is to allow the first
+ entry to be created with the second being created via an add-brick
+ later on
+ */
+ if (!count || (count < 1)) {
+ cli_out ("replica count should be greater than 0");
ret = -1;
goto out;
}
