Description
Today, if a user wanted to allow a tablet to use newly added data directories, there are a few ways to achieve this:
- Drop the tablet and rewrite it.
- Copy the replica elsewhere. The copy will have a new set of data directories.
- Wait for the existing data directories in the group to run out of space – once this happens, a new directory will be added to the group.
None of these are pleasant – we should add a tool to expand the data directory group for a remote replica, maybe even allowing users to specify a target directory path.
For completeness sake, it would also be nice if the tool could reduce data directory group size, but that seems less obviously useful.
Attachments
Issue Links
- is related to
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KUDU-2577 Support rebalancing data allocation across directories when adding a new data dir
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- Open
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