SLING-3432 : added a note about detection of a possible pseudo-network-partition

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk/bundles/extensions/discovery/impl@1574457 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/sling/discovery/impl/cluster/ClusterViewServiceImpl.java b/src/main/java/org/apache/sling/discovery/impl/cluster/ClusterViewServiceImpl.java
index 816efb9..3bab31d 100644
--- a/src/main/java/org/apache/sling/discovery/impl/cluster/ClusterViewServiceImpl.java
+++ b/src/main/java/org/apache/sling/discovery/impl/cluster/ClusterViewServiceImpl.java
@@ -152,7 +152,9 @@
             if (foundLocal) {
                 return clusterViewImpl;
             } else {
-                logger.info("getEstablishedView: the existing established view does not incude the local instance yet! Assuming isolated mode.");
+                logger.info("getEstablishedView: the existing established view does not incude the local instance yet! Assuming isolated mode. "
+                        + "If this occurs at runtime - other than at startup - it could cause a pseudo-network-partition, see SLING-3432. "
+                        + "Consider increasing heartbeatTimeout then!");
                 return getIsolatedClusterView();
             }
         } catch (LoginException e) {