Wrong SV_MOVED generated when GetDelta is called while Move() is in offloaded queue

Bug #1092628 reported by Roman Yepishev
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ubuntu One Client
Triaged
High
Ubuntu One Client Engineering team

Bug Description

14:35:09 <facundobatista> alecu, ok, the situation is this one
14:36:40 <facundobatista> alecu, you create a file B, it's created in the server; then you move it to C, but before C is really executed, client asks for a GetDelta
14:37:14 <facundobatista> alecu, in that GetDelta, the server informs that the node is called B
14:37:47 <facundobatista> alecu, so, client says "ha! here it's called C, in the server it's called B, somebody else renamed it, SV_MOVED!!
14:38:13 <alecu> facundobatista: oh, so that's a "synthetic" SV_MOVED, not a real one, right?
14:38:16 <facundobatista> alecu, this can happen also with changing parents also (it's also "moving")
14:38:23 <facundobatista> alecu, yeap
14:38:42 <facundobatista> alecu, *but*, wait, this case is already handled in the client!
14:39:57 <facundobatista> alecu, before generating the synthetic SV_MOVED, the client grabs his chin and thinks "hey, what if we're in the situation of an already moved file here that the server still doesn't know about?"
14:40:29 <facundobatista> alecu, so, it checks internally if there is a queued move from itself that still didn't get into the server
14:40:42 <facundobatista> alecu, sooooo, the bug is:
14:41:16 <facundobatista> alecu, the client's Move operation was offloaded to disk and it's only checking for the queued move in the in-memory operations

Revision history for this message
Alejandro J. Cura (alecu) wrote :

The SV_MOVED is wrongly generated on the client, because SD is not looking in the offload queue.

summary: - Sudden SV_MOVED from server when GetDelta is called while Move() is in
+ Wrong SV_MOVED generated when GetDelta is called while Move() is in
offloaded queue
Changed in ubuntuone-client:
status: New → Triaged
assignee: nobody → Ubuntu One Client Engineering team (ubuntuone-client-engineering)
importance: Undecided → High
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.