From 010e6cef3f074de1096b2b4a7778dcc4f40bcaa9 Mon Sep 17 00:00:00 2001
From: dHannasch <David.A.Hannasch@gmail.com>
Date: Tue, 17 Nov 2020 14:10:23 -0700
Subject: [PATCH] Allow setting the RAY_BACKEND_LOG_LEVEL to trace. (#12012)

---
 src/ray/util/logging.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ray/util/logging.cc b/src/ray/util/logging.cc
index 578cc4049..e62615cd1 100644
--- a/src/ray/util/logging.cc
+++ b/src/ray/util/logging.cc
@@ -254,7 +254,9 @@ void RayLog::StartRayLog(const std::string &app_name, RayLogLevel severity_thres
   if (var_value != nullptr) {
     std::string data = var_value;
     std::transform(data.begin(), data.end(), data.begin(), ::tolower);
-    if (data == "debug") {
+    if (data == "trace") {
+      severity_threshold = RayLogLevel::TRACE;
+    } else if (data == "debug") {
       severity_threshold = RayLogLevel::DEBUG;
     } else if (data == "info") {
       severity_threshold = RayLogLevel::INFO;