increasing pending container expiry timeout to 15 min
diff --git a/products/stratos/modules/distribution/src/main/conf/autoscaler.xml b/products/stratos/modules/distribution/src/main/conf/autoscaler.xml
index 4d19bbc..4d8056e 100644
--- a/products/stratos/modules/distribution/src/main/conf/autoscaler.xml
+++ b/products/stratos/modules/distribution/src/main/conf/autoscaler.xml
@@ -46,7 +46,7 @@
 		</vm>
 		<container>
                     <!-- this is the maximum time(ms) a container member can be in pending member state -->
-                    <pendingMemberExpiryTimeout>300000</pendingMemberExpiryTimeout>
+                    <pendingMemberExpiryTimeout>900000</pendingMemberExpiryTimeout>
                     <!-- this is the maximum time(ms) a container member can be in obsoleted member state -->
                     <obsoletedMemberExpiryTimeout>3600000</obsoletedMemberExpiryTimeout>
 		</container>