Rajesh Balamohan created HDDS-2384:
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             Summary: Large chunks during write can have memory pressure on DN 
with multiple clients
                 Key: HDDS-2384
                 URL: https://issues.apache.org/jira/browse/HDDS-2384
             Project: Hadoop Distributed Data Store
          Issue Type: Improvement
            Reporter: Rajesh Balamohan


During large file writes, it ends up writing {{16 MB}} chunks.  

https://github.com/apache/hadoop-ozone/blob/master/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java#L691

In large clusters, 100s of clients may connect to DN. In such cases, depending 
on the incoming write workload mem load on DN can increase significantly. 





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