BUG 2165941: rbd: Dont depend on image state to issue resync #185
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During the Demote volume store the image creation timestamp. During Resync do below operation * Check image creation timestamp stored during Demote operation and current creation timestamp during Resync and check both are equal and its for force resync then issue resync * If the image on both sides is not in unknown state, check last_snapshot_timestamp on the local mirror description, if its present send volumeReady as false or else return error message. If both the images are in up+unknown the send volumeReady as true. Signed-off-by: Madhu Rajanna <[email protected]> (cherry picked from commit e013cfe)
Not sure why but go-lint is failing with below error and this fix is required to make it pass ``` directive `//nolint:staticcheck // See comment above.` is unused for linter "staticcheck" (nolintlint) ``` Signed-off-by: Madhu Rajanna <[email protected]> (cherry picked from commit 4016876)
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@Madhu-1: This pull request references Bugzilla bug 2165941, which is valid. The bug has been updated to refer to the pull request using the external bug tracker. 3 validation(s) were run on this bug
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/assign @nixpanic |
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/gtm |
@nixpanic typo in above lgtm |
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/lgtm |
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@Madhu-1: All pull requests linked via external trackers have merged: Bugzilla bug 2165941 has been moved to the MODIFIED state. In response to this:
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Previously we were dependent on the image mirror state to issue the resync command, What we came to know is that we cannot depend on the image mirror state as the state can change anytime from one to another, We are following the below steps to fix this problem.
During the Demote volume store the image creation timestamp.
During Resync do the below operation
Check the image creation timestamp stored during the Demote operation and the current creation timestamp during Resync and check both are equal and it for force resync then issue resync
If the image on both sides is not in the unknown state, check last_snapshot_timestamp on the local mirror description, if it's present send volumeReady as false, or else return an error message.
If both the images are in up+unknown the send volumeReady as true.
Storing the image creation timestamp on the rbd image as metadata and it gets cleaned up when the image is recreated as it gets synced up from the primary cluster.
This is backport of ceph#4076