raft lease is always valid when replica is one Synchronize storage 2.0 pr 69 (vesoft-inc#2276)

panda-sheep · dangleptr · web-flow · commit 6405167e5090 · 2020-08-06T18:26:21.000+08:00
Co-authored-by: dangleptr &lt;37216992+dangleptr@users.noreply.github.com&gt;
diff --git a/src/kvstore/raftex/RaftPart.cpp b/src/kvstore/raftex/RaftPart.cpp
@@ -1876,6 +1876,10 @@ void RaftPart::checkAndResetPeers(const std::vector<HostAddr>& peers) {
 }
 
 bool RaftPart::leaseValid() {
+    std::lock_guard<std::mutex> g(raftLock_);
+    if (hosts_.empty()) {
+        return true;
+    }
     // When majority has accepted a log, leader obtains a lease which last for heartbeat.
     // However, we need to take off the net io time. On the left side of the inequality is
     // the time duration since last time leader send a log (the log has been accepted as well)
