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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2020/09/22 08:43:13 UTC
[GitHub] [hadoop-ozone] linyiqun commented on pull request #1437: HDDS-4222: [OzoneFS optimization] Provide a mechanism for efficient path lookup
linyiqun commented on pull request #1437:
URL: https://github.com/apache/hadoop-ozone/pull/1437#issuecomment-696588382
> > Hi @rakeshadr , some initial review comments below.
> > In additional, one question from me: this is the first task of dir cache, there will be other further subtasks. But this part of work depends on [HDDS-2939](https://issues.apache.org/jira/browse/HDDS-2939) be completed. So that means [HDDS-4222](https://issues.apache.org/jira/browse/HDDS-4222) tasks cannot be merged immediately and be blocked for a long time? How do we plan to coordinate with [HDDS-2939](https://issues.apache.org/jira/browse/HDDS-2939) and [HDDS-4222](https://issues.apache.org/jira/browse/HDDS-4222) feature development works?
>
> Good comment. yes, cache should be integrated eventually(case-by-case) to get full benefit. But [HDDS-4222](https://issues.apache.org/jira/browse/HDDS-4222) can be upstreamed separately and not blocked, I feel.
>
> Cache can be integrated once [HDDS-2949](https://issues.apache.org/jira/browse/HDDS-2949) is finished. During dir creation, it checks the [DIR_EXISTS](https://github.com/apache/hadoop-ozone/blob/master/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/file/OMDirectoryCreateRequest.java#L185) and cache can be integrated into this call path.
>
> Later, while implementing File, lookups tasks, delete, rename etc will integrate into that areas.
Get it, sounds good to me.
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