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https://issues.apache.org/jira/browse/HDDS-15529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Blough reassigned HDDS-15529:
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Assignee: Ryan Blough
> ContainerInfo describes the opposite of the usedBytes behavior implemented in
> AbstractContainerReportHandler
> ------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-15529
> URL: https://issues.apache.org/jira/browse/HDDS-15529
> Project: Apache Ozone
> Issue Type: Bug
> Components: SCM
> Affects Versions: 2.1.0, 2.2.0, 2.3.0
> Reporter: Ryan Blough
> Assignee: Ryan Blough
> Priority: Minor
>
> e ContainerInfo.java file reports in the javadocs comment that OPEN
> containers will be calculated using the maximum of values and CLOSED
> containers use the minimum of values:
>
> {code:java}
> * Returns the usedBytes for the container. The value returned is derived
> * from the replicas reported from the datanodes for the container.
> *
> * The size of a container can change over time. For an open container we
> * assume the size of the container will grow, and hence the value will be
> * the maximum of the values reported from its replicas.
> *
> * A closed container can only reduce in size as its blocks are removed. For
> * a closed container, the value will be the minimum of the values reported
> * from its replicas. {code}
> The AbstractContainerReportHandler.java file implements the opposite
> relationship:
>
> {code:java}
> if (containerInfo.getState().equals(HddsProtos.LifeCycleState.OPEN)) {
> // Open containers are generally growing in key count and size, the
> // overall size should be the min of all reported replicas.
> return Math.min(lastValue, thisValue);
> } else {
> // Containers which are not open can only shrink in size, so use the
> // largest values reported.
> return Math.max(lastValue, thisValue);
> }
> } {code}
> Concretely, ContainerInfo.java describes reporting the _anticipated_ values,
> and AbstractContainerReportHandler.java implements reporting the
> _conservative current_ values.
> Updating ContainerInfo.java to reflect the actual implementation and testing,
> for consistency.
>
>
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