From 46230e4f6ea54864672c7feaa3ec9d8ab89de563 Mon Sep 17 00:00:00 2001
From: intsmaze <liuyang586@vip.qq.com>
Date: Mon, 14 Jan 2019 16:42:12 +0800
Subject: [PATCH] Update state_backends.md

Stateback provides api implementations of FsStateBackend and MemoryStateBackend by default. Add the RocksDBStateBackend dependency if you want to use the RocksDBStateBackend api.
---
 docs/ops/state/state_backends.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/docs/ops/state/state_backends.md b/docs/ops/state/state_backends.md
index e4fe5bda06304..7307d7e67c163 100644
--- a/docs/ops/state/state_backends.md
+++ b/docs/ops/state/state_backends.md
@@ -146,6 +146,17 @@ env.setStateBackend(new FsStateBackend("hdfs://namenode:40010/flink/checkpoints"
 </div>
 </div>
 
+Stateback provides api implementations of FsStateBackend and MemoryStateBackend by default. 
+If you want to set Per-job state backend to RocksDBStateBackend, you need to add a dependency in your Flink project.
+
+{% highlight xml %}
+<dependency>
+    <groupId>org.apache.flink</groupId>
+    <artifactId>flink-statebackend-rocksdb{{ site.scala_version_suffix }}</artifactId>
+    <version>{{site.version }}</version>
+</dependency>
+{% endhighlight %}
+
 
 ### Setting Default State Backend