From f4e6cf4439b38f6e84d33d84dc8ea915c1e71d8c Mon Sep 17 00:00:00 2001
From: Ethan Buchman <ethan@coinculture.info>
Date: Thu, 22 Dec 2016 15:01:02 -0500
Subject: [PATCH] consensus: sync wal.writeHeight

---
 consensus/wal.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/consensus/wal.go b/consensus/wal.go
index 2c03027cd..099e3c1aa 100644
--- a/consensus/wal.go
+++ b/consensus/wal.go
@@ -104,4 +104,9 @@ func (wal *WAL) Save(wmsg WALMessage) {
 
 func (wal *WAL) writeHeight(height int) {
 	wal.group.WriteLine(Fmt("#HEIGHT: %v", height))
+
+	// TODO: only flush when necessary
+	if err := wal.group.Flush(); err != nil {
+		PanicQ(Fmt("Error flushing consensus wal buf to file. Error: %v \n", err))
+	}
 }