Sammi Chen created HDDS-12419:
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Summary: 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
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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