Details
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Task
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Resolution: Won't Fix
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Major - P3
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None
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None
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None
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Storage 2017-08-21
Description
Currently renameCollection across databases:
- takes a global lock
- copies the data from the source collection to a temporary collection (with a different UUID) in the target database
- atomically drops the source collection and renames the temp collection in the target db to its final non-temp name in the target db.
We can change this to:
- Take a global clock
- Copy the data from the source collection to a temporary collection (with a different UUID) in the target database
- Atomically move the source collection to the drop-pending namespace, change its UUUID, rename the temp collection in the target db to its final non-temp name in the target db, and change the UUID on the dest collection to the UUID of the original source collection.
Attachments
Issue Links
- is related to
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SERVER-30371 Separate renameCollection across DB commands into individual oplog entries
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- Closed
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