Bug 832632 - [Feature Request] Copy On Write (COW)
[Feature Request] Copy On Write (COW)
Status: CLOSED EOL
Product: GlusterFS
Classification: Community
Component: core (Show other bugs)
mainline
All Linux
medium Severity medium
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Assigned To: bugs@gluster.org
: FutureFeature
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2012-06-16 01:36 EDT by Robert Lanning
Modified: 2015-10-22 11:46 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Enhancement
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Last Closed: 2015-10-22 11:46:38 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Robert Lanning 2012-06-16 01:36:50 EDT
Description of problem:
Need a COW for VM cloning.

Additional info:
This can be done, with the support of COW in the underlying filesystems.

If you use BTRFS for your bricks, then when a COW request hits a file, a link can be made at the destination brick for the new copy, then instigate a COW action on the local file.

Then a rebalance can finish the actual copy process to the real destination brick, in the background.
Comment 2 Kaleb KEITHLEY 2015-10-22 11:46:38 EDT
because of the large number of bugs filed against mainline version\ is ambiguous and about to be removed as a choice.

If you believe this is still a bug, please change the status back to NEW and choose the appropriate, applicable version for it.

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