Uma Maheswara Rao G created HDDS-12318:
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             Summary: DN should respect the du reserved space when allocating 
container and importing containers.
                 Key: HDDS-12318
                 URL: https://issues.apache.org/jira/browse/HDDS-12318
             Project: Apache Ozone
          Issue Type: Bug
          Components: Ozone Datanode
            Reporter: Uma Maheswara Rao G
            Assignee: Ashish Kumar


In one of the clusters we have seen, DNs hit disk out-of-space exceptions. This 
task is to review and make du reserved space respected correctly.

There are different path where containers created at DNs
1. While allocating new containers
2. In replication flow, the destination container downloads and imports the 
container.

These places should maintain accurate rolling counts to incorporate the ongoing 
container sizes. The allocation should always respect du reserved space.



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