From f0cc1df2ece6f0373f5b341f73f2e2c7cf7b3207 Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Fri, 3 May 2013 19:31:18 +0000
Subject: NO-JIRA: HA minor documentation updates.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1478943 13f79535-47bb-0310-9956-ffa450edef68
---
 doc/book/src/cpp-broker/Active-Passive-Cluster.xml | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/doc/book/src/cpp-broker/Active-Passive-Cluster.xml b/doc/book/src/cpp-broker/Active-Passive-Cluster.xml
index b98e054b98..9c5f3a4fc7 100644
--- a/doc/book/src/cpp-broker/Active-Passive-Cluster.xml
+++ b/doc/book/src/cpp-broker/Active-Passive-Cluster.xml
@@ -317,7 +317,15 @@ ssl_addr = "ssl:" host [":" port]'
 	    </entry>
 	  </row>
 	  <row>
-	    <entry><literal>ha-backup-timeout <replaceable>SECONDS</replaceable></literal> </entry>
+	    <entry><literal>ha-backup-timeout<replaceable>SECONDS</replaceable></literal>
+	    <footnote id="ha-seconds-spec">
+	      <para>
+		Values specified as <replaceable>SECONDS</replaceable> can be a
+		fraction of a second, e.g. "0.1" for a tenth of a second.
+		They can also have an explicit unit, e.g. 10s, 10ms, 10us, 10ns
+	      </para>
+	    </footnote>
+	    </entry>
 	    <entry>
 	      <para>
 		Maximum time that a recovering primary will wait for an expected
@@ -326,7 +334,10 @@ ssl_addr = "ssl:" host [":" port]'
 	    </entry>
 	  </row>
 	  <row>
-	    <entry><literal>link-maintenance-interval <replaceable>SECONDS</replaceable></literal></entry>
+	    <entry>
+	      <literal>link-maintenance-interval <replaceable>SECONDS</replaceable></literal>
+	      <footnoteref linkend="ha-seconds-spec"/>
+	    </entry>
 	    <entry>
 	      <para>
 		Interval for the broker to check link health and re-connect links if need
@@ -336,7 +347,10 @@ ssl_addr = "ssl:" host [":" port]'
 	    </entry>
 	  </row>
 	  <row>
-	    <entry><literal>link-heartbeat-interval <replaceable>SECONDS</replaceable></literal></entry>
+	    <entry>
+	      <literal>link-heartbeat-interval <replaceable>SECONDS</replaceable></literal>
+	      <footnoteref linkend="ha-seconds-spec"/>
+	    </entry>
 	    <entry>
 	      <para>
 		Heartbeat interval for replication links. The link will be assumed broken
-- 
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