From 88919d096f9bb5642e4e9286283f77621a17ca84 Mon Sep 17 00:00:00 2001
From: Michael Wei <mwei@cs.ucsd.edu>
Date: Thu, 21 May 2015 15:23:13 -0700
Subject: [PATCH] don't remove last logunit, fixes #24

---
 .../configmaster/policies/SimpleReconfigurationPolicy.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/corfudb/infrastructure/configmaster/policies/SimpleReconfigurationPolicy.java b/src/main/java/org/corfudb/infrastructure/configmaster/policies/SimpleReconfigurationPolicy.java
index 4aa124986f3..c6432973f20 100644
--- a/src/main/java/org/corfudb/infrastructure/configmaster/policies/SimpleReconfigurationPolicy.java
+++ b/src/main/java/org/corfudb/infrastructure/configmaster/policies/SimpleReconfigurationPolicy.java
@@ -40,7 +40,9 @@ public CorfuDBView getNewView(CorfuDBView oldView, NetworkException e) {
                 {
                     for (List<IServerProtocol> nodeList : segment.getGroups())
                     {
-                        nodeList.removeIf(n ->n.getFullString().equals(e.protocol.getFullString()));
+                        if (nodeList.size() > 1) {
+                            nodeList.removeIf(n -> n.getFullString().equals(e.protocol.getFullString()));
+                        }
                     }
                 }