[PATCH] Document config_version option

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Signed-off-by: Jan Friesse <jfriesse@xxxxxxxxxx>
---
 man/cmap_keys.8     |    5 ++++-
 man/corosync.conf.5 |   12 +++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/man/cmap_keys.8 b/man/cmap_keys.8
index 15cb62c..0913aed 100644
--- a/man/cmap_keys.8
+++ b/man/cmap_keys.8
@@ -31,7 +31,7 @@
 .\" * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 .\" * THE POSSIBILITY OF SUCH DAMAGE.
 .\" */
-.TH "CMAP_KEYS" 8 "05/04/2012" "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
+.TH "CMAP_KEYS" 8 "10/10/2012" "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
 
 .SH NAME
 .P
@@ -244,6 +244,9 @@ processor fails and rejoins again, this value is incremented.
 .B status
 Status of processor. Can be one of joined and left.
 
+.B config_version
+Config version of member node.
+
 .TP
 resources.process.PID.*
 Prefix created by applications using SAM with CMAP integration.
diff --git a/man/corosync.conf.5 b/man/corosync.conf.5
index 438c4a4..34dd7b8 100644
--- a/man/corosync.conf.5
+++ b/man/corosync.conf.5
@@ -32,7 +32,7 @@
 .\" * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 .\" * THE POSSIBILITY OF SUCH DAMAGE.
 .\" */
-.TH COROSYNC_CONF 5 2012-01-12 "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
+.TH COROSYNC_CONF 5 2012-10-10 "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
 .SH NAME
 corosync.conf - corosync executive configuration file
 
@@ -258,6 +258,16 @@ cluster_name
 This specifies the name of cluster and it's used for automatic generating
 of multicast address.
 
+.TP
+config_version
+This specifies version of config file. This is converted to unsigned 64-bit int.
+By default it's 0. Option is used to prevent joining old nodes with not
+up-to-date configuration. If value is not 0, and node is going for first time
+(only for first time, join after split doesn't follow this rules)
+from single-node membership to multiple nodes membership, other nodes
+config_versions are collected. If current node config_version is not
+equal to highest of collected versions, corosync is terminated.
+
 Within the
 .B totem
 directive, there are several configuration options which are used to control
-- 
1.7.1

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