From 58d7e7d5f94cf5a6c92059d4c8663741e3237584 Mon Sep 17 00:00:00 2001
From: Jan Szejko <janek37@gmail.com>
Date: Mon, 29 May 2017 12:26:38 +0200
Subject: [PATCH] multiple tries loading counters

---
 src/catalogue/helpers.py | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/catalogue/helpers.py b/src/catalogue/helpers.py
index 97c63d08c..4dd7bda9f 100644
--- a/src/catalogue/helpers.py
+++ b/src/catalogue/helpers.py
@@ -28,8 +28,17 @@ def get_top_level_related_tags(tags, categories=None):
     global _COUNTERS, _COUNTER_TIME
     # First, check that we have a valid and recent version of the counters.
     if getmtime(settings.CATALOGUE_COUNTERS_FILE) > _COUNTER_TIME:
-        with open(settings.CATALOGUE_COUNTERS_FILE) as f:
-            _COUNTERS = cPickle.load(f)
+        for i in xrange(10):
+            try:
+                with open(settings.CATALOGUE_COUNTERS_FILE) as f:
+                    _COUNTERS = cPickle.load(f)
+            except (EOFError, ValueError):
+                if i < 9:
+                    continue
+                else:
+                    raise
+            else:
+                break
 
     tagids = tuple(sorted(t.pk for t in tags))
     try:
-- 
2.20.1