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https://issues.apache.org/jira/browse/HDDS-12419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Chuan Yu reassigned HDDS-12419:
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Assignee: Chia-Chuan Yu
> Space tracking for Imported Containers in HDDS Volumes
> ------------------------------------------------------
>
> Key: HDDS-12419
> URL: https://issues.apache.org/jira/browse/HDDS-12419
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Sammi Chen
> Assignee: Chia-Chuan Yu
> Priority: Major
>
> Multiple container imports can happen in parallel. There is enough free
> space(2 *5GB) check when datanode choose which volume to download and import
> container. But this multiple container imports in parallel, the free space
> check is not enough.
> In "HDDS-1511. Space tracking for Open Containers in HDDS Volumes", it
> introduced a *committedBytes* field to reflect the reserved 5GB space for a
> new open container. Its value will be adjusted when the container is closed.
> *committedBytes* is treated as allocated from Datanode and SCM's
> perspective.
> We can adopt the same idea here for container import, reserving a 2 * 5GB
> space using *committedBytes*, and removing(or adjust) the reserving after
> container import is finished, to avoid over allocation of space for parallel
> container imports.
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