[Xapian-tickets] [Xapian] #436: Add "force" mode to replication client to force a full copy

Xapian nobody at xapian.org
Tue Feb 2 00:36:31 GMT 2010


#436: Add "force" mode to replication client to force a full copy
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 Reporter:  richard  |       Owner:  richard  
     Type:  defect   |      Status:  new      
 Priority:  normal   |   Milestone:  1.2.x    
Component:  Other    |     Version:  SVN trunk
 Severity:  normal   |   Blockedby:           
 Platform:  All      |    Blocking:           
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 It would be useful to be able to force the replication client to perform a
 full copy of a database, even if it thinks it already has a fully up-to-
 date copy.

 This could be of use if the master replication copy gets reverted to an
 earlier revision, or if a corrupt replication has happened for some
 reason.  This happened to me in practice when a master replication copy
 was restored from backup storage: the clients were not performing a
 synchronisation step automatically because their revision number ended up
 being greater than that of the master copy.

 It's generally useful to be able to manually force a known clean copy of
 the database in this type of situation.

 The replication protocol and replication APIs don't need any changes to
 support this: the client just needs to pretend that it doesn't have a copy
 of the database at all currently.  Therefore, this can be implemented
 sometime in the 1.2.x series.

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Ticket URL: <http://trac.xapian.org/ticket/436>
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