hanke580 opened a new pull request, #6175:
URL: https://github.com/apache/hadoop/pull/6175
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### Description of PR
During the upgrade process, when creating the FSImage the access time of the
directory is not serialized to the FSImage. This causes the access timestamp
lost.
This PR adds access time field in INodeDirectory just like INodeFile proto
definition and persists access time field during the snapshotting process.
### How was this patch tested?
(1) Tested with system snapshot + restart.
(2) Tested old version system without the patch => upgrade to system with
the patch.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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