add fs.mergeVolumes command into shell - #4907
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chrislusf
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Oct 10, 2023
yeganemehr
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@yeganemehr Thank you very much, the need for this has been long overdue, but I haven’t gotten around to implementing it. |
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@kmlebedev |
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Dec 22, 2023
* add fs.compact command into shell * rename fs.compact to fs.mergeVolumes
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What problem are we solving?
Half-full volumes can easily cause volume-servers ran out of volumes although they may have plenty of free disk space.
As it already suggested in this discussion if We could go throughout all files in filer and move all chunks to another volume and update they
Fidin the filer store we can empty those volumes.How are we solving the problem?
My solution heavily inspired by
fs.meta.changeVolumeId.We traverse on all files & directories and move they chunks to another volume.
In this action, chunks keep their
FileKeyandCookieand justVolumeIdwould update.How is the PR tested?
I tested locally and on my own cluster.
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