Apply replication commands

Question

Apply replication commands

jimmy_ba37

Newbie

Points: 7
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October 26, 2010 at 9:00 am

#228428

Hello,
I have a question, After a subscription is dead (for any reason), the next step is to recreate the subscription and apply the commands to replicate the data that the server cound't send.
After review the distribution database looking for a table for apply the commands like te replication monitor shows when it falls, I mean
commands like this: Call Msins(1,'CC', 1846, 'A)
The idea is to recover all the transactions that couldn't be applied the day before. So, obviously, all the transactions are not necesary jus the day before the subscription's broken. I have found the MSrepl_commands and MSrepl_transactions table but how may I read those varbinay columns ?

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winash SSChampion Points: 11446 More actions · Answer 1

If your subscription expires aren't you trying to re-initialize the subscription? i.e. drop the subscription and then re-create and initialize the subscription - which will take care of getting all the data from the publisher into the subscriber?

You can read the commands associated with the xact_seqno in the MSrepl_commands table by using the sp_browsereplcmds stored procedure (passing in the xact_seqno as the parameter to this procedure). The result set from this procedure will have a "command" column which contains the commands that are associated with the xact_seqno.

However - trying to manually synch data like this (running the commands manually on the subscriber) isn't recommended. Is there any reason you don't want to reinitialize your subscription and you want to manually run the commands?

winash SSChampion Points: 11446 More actions · Answer 2

You could also try the following:

a) Identify the tables that are out of synch using the xact_seqno and sp_browsereplcmds

b) Use the tablediff utility http://msdn.microsoft.com/en-us/library/ms162843(v=SQL.90).aspx to compare the data in the table(s) on the publisher and the subscriber and use the same tablediff tool to generate scripts to get them into synch

Roy Ernest SSC-Dedicated Points: 38780 More actions · Answer 3

winash gave you all the info. It will work but it is quite a lengthy process. Isnt it better to to just reinitialize the subscription?

I would just reinitialize just the tables that needs it.

-Roy