From ce7136661249a076f3719b6be7ca6857f8b788a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hut=C3=A1k?= <lukas.hutak@cesnet.cz>
Date: Sun, 14 Mar 2021 13:15:37 +0100
Subject: [PATCH] JSON output: add warning about a bug in librdkafka to README

---
 src/plugins/output/json/README.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/plugins/output/json/README.rst b/src/plugins/output/json/README.rst
index 1d3cc09e..84152a82 100644
--- a/src/plugins/output/json/README.rst
+++ b/src/plugins/output/json/README.rst
@@ -259,6 +259,10 @@ with each other.
 
 :``kafka``:
     Send data to Kafka i.e. Kafka producer.
+    
+    **Warning:** Library librdkafka < ``1.5.0`` contains a bug which might prevent the plugin 
+    from starting. If so, use ``json-kafka`` output plugin which implements workaround for this 
+    issue.
 
     :``name``: Identification name of the output. Used only for readability.
     :``brokers``: