From ac151b709d06398b0de9d72b8492a6aa468e739a Mon Sep 17 00:00:00 2001
From: garyelephant <garygaowork@gmail.com>
Date: Fri, 6 Jul 2018 11:46:19 +0800
Subject: [PATCH] fixed ValueError: No JSON object could be decoded in guardian
 spark checker

---
 spark_checker/streaming_utils.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/spark_checker/streaming_utils.py b/spark_checker/streaming_utils.py
index b9e69ce..417e281 100644
--- a/spark_checker/streaming_utils.py
+++ b/spark_checker/streaming_utils.py
@@ -34,7 +34,11 @@ def streaming_batch_stats(master_url, application_id, status=None, timeout=20):
         if resp.status_code != 200:
             continue
 
-        stats_json = resp.json()
+        try:
+            stats_json = resp.json()
+        except ValueError as e:
+            stats_json = None
+
         break
 
     if stats_json is None: