rbd: add support for mirror image promotion/demotion/resync #8138
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@jdurgin I quickly threw these CLI commands together since I need to reference them in the admin documentation. |
added 6 commits
March 15, 2016 20:14
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
| return -EBUSY; | ||
| } | ||
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| r = Journal<>::allocate_tag(ictx, Journal<>::LOCAL_MIRROR_UUID); |
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I guess we might want an interlock with rbd-mirror here so that it doesn't have any i/o in flight to the local image after it's promoted, so it can be used after promotion immediately
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Yeah -- might be good for me to throw a TODO here
added 4 commits
March 15, 2016 20:38
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
When a client is disconnected from the journal, entries can be pruned regardless of the affected client's commit position. Signed-off-by: Jason Dillaman <dillaman@redhat.com>
A secondary image will store its resync request to the primary image's journal. When the local rbd mirror process detects the flag being set, it can initiate a resync from the remote. Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
jdurgin
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Mar 16, 2016
rbd: add support for mirror image promotion/demotion/resync Reviewed-by: Josh Durgin <jdurgin@redhat.com>
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