Reverse workflow: update cells/tablet_types #6556
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Signed-off-by: Rohit Nayak <[email protected]>
deepthi
requested changes
Aug 13, 2020
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The implementation looks fine. The only concern is whether it is valid to assume that the cells / tablet_types provided for the forward workflow are the same ones we should use for reverse.
Probably fine for the first implementation.
Can you please update the PR with a description of why this PR and a brief summary of implementation?
deepthi
approved these changes
Aug 17, 2020
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VReplication creates a reverse workflow on SwitchWrites so that it is possible to revert a MoveTables or Reshard. However the cell/tablet_types columns in _vt.vreplication are currently not updated with the options provided on the command line.
This PR fixes that:
target's cell (but not the source's) we use the source cell instead.
We chose this approach instead of adding more cli options to specify tablet_types/cells for the reverse workflow as a simpler initial implementation. We can add the extra options if we find valid use-cases for it.
Signed-off-by: Rohit Nayak [email protected]