we had setup merge replication on 2 db servers. For some reason, the subscription started failing a month back with the error " invalid object sysmergexxxx on the subscriber. I did a reinitialize and now all the changes on the subscriber which werent synced got deleted. I have tried all 3 log recovery tools with no luck. Is there any hope of recovering data. the last backup on the subscriber was a month ago.
I believe when you reinitialized the subscriber, you did not chose to upload the unsent changes from subscriber and hence you lost your subscriber data. Sorry to say, but there is no way to recover this data now and is overwritten by the publisher's data.
You should try to either upload the changes next time this occurs or save a backup copy of the subscriber database, then reinitialize (without upload changes) and then diff between the current subscriber and the backup and redo the DML that are different.
Hope that helps next time.
I am also moving this thread to the replication forums.
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