devmadhuu opened a new pull request, #10161:
URL: https://github.com/apache/ozone/pull/10161
This change prevents DN replication/import from failing the whole target DN
when the volume selected by the volume choosing policy already contains a stale
container directory.
**Key changes:**
- Retry container creation on another candidate volume when
KeyValueContainer#create hits an existing container directory on the selected
volume.
- Add retry-aware import path in ContainerImporter for pull and push
replication.
- Keep retry scoped to CONTAINER_ALREADY_EXISTS; other import failures
still fail normally.
- Handling committed space reservation accounting for both initial and
retry-selected volumes.
- Add unit coverage for stale selected-volume container dirs in
create/import paths.
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-15135
## How was this patch tested?
This patch was tested using some new unit tests and some existing ones:
**Tests:**
- Added unit coverage for retrying another candidate volume when the
selected volume already has the target container directory.
- Added unit coverage for retry-aware container import when the initially
selected volume has a stale container directory.
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