From baf0fe956c1b1de06a8c60e571ad70a21dc6c65b Mon Sep 17 00:00:00 2001
From: tclinken <trevorclinkenbeard@gmail.com>
Date: Thu, 26 Mar 2020 09:55:03 -0700
Subject: [PATCH] Take trace mutex in setLogGroup

---
 flow/Trace.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/flow/Trace.cpp b/flow/Trace.cpp
index 00053493f8..82e2d7f662 100644
--- a/flow/Trace.cpp
+++ b/flow/Trace.cpp
@@ -550,7 +550,10 @@ public:
 		}
 	}
 
-	void setLogGroup(const std::string& logGroup) { this->logGroup = logGroup; }
+	void setLogGroup(const std::string& logGroup) {
+		MutexHolder holder(mutex);
+		this->logGroup = logGroup;
+	}
 
 	Future<Void> pingWriterThread() {
 		auto ping = new WriterThread::Ping;