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VB 6.0 applications needs to replicate data


VB 6.0 applications needs to replicate data

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river1
river1
SSCarpal Tunnel
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Hi,

I have an application in VB 6.0. That application needs to replicate some data to another database (different database).

The goal is to make something (SSIS, WebService or Replication) that can send information to the other database.

The production environment particular situation:

1) The internet is very low (speed) and sometimes it goes down.
2) The other place (where the other database is) sometimes has internet other times it does not have.


Based on this problematic situation, what I need is to create something (SSIS, WebService or Replication) that can always see if the internet is available and when it is, start replicating the data.

What is the best thing to do? SSIS, WebService or Replication?

Thanks
happycat59
happycat59
SSCrazy Eights
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Group: General Forum Members
Points: 8949 Visits: 3281
If the 3 options you list, only one of them will automatically resume processing following a network outage. This is replication. In your environment, you would need to make sure that you set the appropriate properties on the distribution agent so that it is more resilient to network outages. The sort of options you need to consider include batch and transaction size and timeout durations.

SSIS packages are usually scheduled to run at particular time(s) of the day. So it the network is down, it won't automatically retry. It will fail if the network is down. The next time it is scheduled to run, is the next time it will attempt to replicate data.

WebServices, of themselves, do not do anything unless an application makes of request. Webservices are normally written so that you make a request (e.g. give me some data please). The webservices responds with the data that satisfies you request and then it stops processing. If you wrote the webservice to replicate data when you made the request, it would behave a bit like the SSIS package...it would attempt to connect, potentially fail, return some success or failure status and then go back to sleep.



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