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HADOOP-13260: Fixing broken image in markdown #98

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Expand Up @@ -65,7 +65,7 @@ Centralized cache management is also useful for mixed workloads with performance
Architecture
------------

![Caching Architecture](images/caching.png)
![Caching Architecture](../resources/images/caching.png)

In this architecture, the NameNode is responsible for coordinating all the DataNode off-heap caches in the cluster. The NameNode periodically receives a *cache report* from each DataNode which describes all the blocks cached on a given DN. The NameNode manages DataNode caches by piggybacking cache and uncache commands on the DataNode heartbeat.

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