From 6c38f31329022e212063c137090fe4f96b733830 Mon Sep 17 00:00:00 2001
From: Jon Cook <cookj@vmware.com>
Date: Mon, 29 Oct 2018 16:52:43 -0700
Subject: [PATCH] Fixed issue where _last_timestamp is not initialized

---
 potsdb/client.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/potsdb/client.py b/potsdb/client.py
index b90199f..8bdde37 100644
--- a/potsdb/client.py
+++ b/potsdb/client.py
@@ -143,6 +143,8 @@ def log(self, name, val, **tags):
                 return  # discard duplicate metrics
             else:
                 _last_metrics.add(unique_str)
+            if _last_timestamp == None:
+                _last_timestamp = timestamp
         else:
             _last_timestamp = timestamp
             _last_metrics.clear()