From: Sage Weil <sage.weil@dreamhost.com>
Date: Sat, 20 Aug 2011 22:04:55 +0000 (-0700)
Subject: paxos: fix store_state
X-Git-Tag: v0.34~21
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=f6c07efdacde5a7a7b7476980d2cc2a57d0ee936;p=ceph.git

paxos: fix store_state

Stop if we empty out the map completely.

Signed-off-by: Sage Weil <sage.weil@dreamhost.com>
---

diff --git a/src/mon/Paxos.cc b/src/mon/Paxos.cc
index 040125b299c9..869fa1160b0a 100644
--- a/src/mon/Paxos.cc
+++ b/src/mon/Paxos.cc
@@ -215,7 +215,7 @@ void Paxos::store_state(MMonPaxos *m)
       // drop anything we've already committed
       if (vals.begin()->first <= last_committed) {
 	dout(20) << " dropping leading elements from " << vals.begin()->first << " to last_committed" << dendl;
-	while (vals.begin()->first <= last_committed) {
+	while (!vals.empty() && vals.begin()->first <= last_committed) {
 	  vals.erase(vals.begin());
 	}
       }