Patch to fix orphan file when using db with OCC protocol need to be merged

[zhangh43]

Hi all,

Not sure whether it's the right place to comment our requirement, but we do suffer from this issue.

When we use OCC protocol database as meta engine, there is a bug which leads to orphan file when conflict happens.
It is fixed by commit on month ago.

https://github.com/juicedata/juicefs/commit/95ec414dcc2505b9c2a60324485cb562f24d2e8e

Return remove dir error of table dirStats to trigger retry. (https://github.com/juicedata/juicefs/pull/4134)
The current issue is that when there's an error in deleting dirstats,
the rmdir operation still proceeds (the transaction is successfully
committed). However, the next time a mkdir operation with the same name
is attempted, it will check dirstats. If it already exists, an error is
reported, making it impossible to make a directory with the same name.

But this commit (one month ago) is not merged to either v1.1.x or the current 1.2.0-dev branch. Do we have a plan to merge this commit to the next release tarball?

Thank you

[SandyXSD]

It IS contained in the current main (1.2.0-dev) branch, see: #4134

[davies]

The reason we did not include the #4134 in 1.1.1 is that we don't see how it could fail future mkdir(), since dirStats use inode as the unique key, and the inode of newly created dir should not be used before. Can you provide steps to reproduce that issue?

[zhangh43]

It IS contained in the current main (1.2.0-dev) branch, see: #4134

FYI It's in main, but not in tag 1.2.0-dev.

[davies]

tag 1.2.0-dev is not a release, just a tag for the beginning of v1.2.0