Combining Peer-to-Peer Transactional Replication with Standard Transactional Replication

Hello,

I'm interested in combining the Peer-to-Peer Transactional Replication and Standard Transactional Replication to provide a scale out solution of SQL Server 2005. The condition is as follows:

We may have 10 SQL Server 2005 (1 Publisher + 9 Subscriber) running transactional replication in the production environment and allow updates in subscribers. To offload the loading of the publisher, we plan to have 2 Publisher (PubNode1 and PubNode2) using Peer-to-Peer Transaction Replication and the rest 8 subscribers will be divided into 2 groups. The subscribers 1-4 (SubNode1, SubNode2, SubNode3, and SubNode4) will be set to be standard transactional replication subscribers of PubNode1, and the rest 4 subscribers (SubNode5, ..., SubNode8) will be set to be standard transactional replication subscribers of PubNode2.

Is it possible to setup above 2 Publisher + 8 Subscriber topology?
Also, could we set the 8 subscribers with updatable subscriptions to achieve each node is updatable?

We do not plan to set all the 10 nodes using Peer-to-Peer Transactional Replication as it is necessary to make sure n*(n-1)/2 (i.e. 45) peer-to-peer connections is reliable. It seems that the maintenance cost is high if the servers are not in a LAN and the topology is very high coupling. So we prefer to divide the 10 nodes into 2 groups and reduce the cost of each node to maintain the connections to all other sites.

That's the scenario.

Any feedback is welcome and appreciated.

Thanks,
Terence

Peer-to-peer would be ideal for your scenario if all your subscribers work primarily on partition data, meaning the chance of two subscribers access the same piece of data is usually pretty low and stable network connection.

If you foresee lots of coflicts situation where different subscribers will access the same data, then you may want to consider merge replication. Merge replication handles conflicts better and does not require dedicated live connection from node to node.

Gary

|||If our network is not stable, we would prefer to use Merge Replication.
However, if there are at least 10 sites for replication, then is each site need to have 9 connections to the other sites?
That's our main concern.
Thanks a lot.|||

I believe the changes are replicated to publisher first then to other subscribers.

http://msdn2.microsoft.com/en-us/library/ms152746.aspx

Therefore, each site only needs to maintain one connection (to the publisher).

Gary

Combining Peer-to-Peer Transactional Replication with Standard Transactional Replication

Hello,

I'm interested in combining the Peer-to-Peer Transactional Replication and Standard Transactional Replication to provide a scale out solution of SQL Server 2005. The condition is as follows:

We may have 10 SQL Server 2005 (1 Publisher + 9 Subscriber) running transactional replication in the production environment and allow updates in subscribers. To offload the loading of the publisher, we plan to have 2 Publisher (PubNode1 and PubNode2) using Peer-to-Peer Transaction Replication and the rest 8 subscribers will be divided into 2 groups. The subscribers 1-4 (SubNode1, SubNode2, SubNode3, and SubNode4) will be set to be standard transactional replication subscribers of PubNode1, and the rest 4 subscribers (SubNode5, ..., SubNode8) will be set to be standard transactional replication subscribers of PubNode2.

Is it possible to setup above 2 Publisher + 8 Subscriber topology?
Also, could we set the 8 subscribers with updatable subscriptions to achieve each node is updatable?

We do not plan to set all the 10 nodes using Peer-to-Peer Transactional Replication as it is necessary to make sure n*(n-1)/2 (i.e. 45) peer-to-peer connections is reliable. It seems that the maintenance cost is high if the servers are not in a LAN and the topology is very high coupling. So we prefer to divide the 10 nodes into 2 groups and reduce the cost of each node to maintain the connections to all other sites.

That's the scenario.

Any feedback is welcome and appreciated.

Thanks,
Terence

Peer-to-peer would be ideal for your scenario if all your subscribers work primarily on partition data, meaning the chance of two subscribers access the same piece of data is usually pretty low and stable network connection.

If you foresee lots of coflicts situation where different subscribers will access the same data, then you may want to consider merge replication. Merge replication handles conflicts better and does not require dedicated live connection from node to node.

Gary

|||If our network is not stable, we would prefer to use Merge Replication.
However, if there are at least 10 sites for replication, then is each site need to have 9 connections to the other sites?
That's our main concern.
Thanks a lot.|||

I believe the changes are replicated to publisher first then to other subscribers.

http://msdn2.microsoft.com/en-us/library/ms152746.aspx

Therefore, each site only needs to maintain one connection (to the publisher).

Gary

Colouring the chart plot area based on x-axis scale

Hi,

I have a report based on a line chart.

The values on X-axis are scaled from -100 to +100. I want to colour the band from -100 to 0 with red colour and that from 0 to +100 in green colour, and i want to provide legend for these bands/sections. How can i do this?

This doesn't look like a tough thing to do but i can't find a way to do it within the chart properties.

Basically i would like to divide the chart (plot area) into multiple vertical bars, each having a different colour. The colour is determined by the range that vertical bar covers on the x-axis

Thanks a lot!

Simranjeev

To color the bars on the chart, go to Chart Properties -> Data -> Edit button in the Values section -> Appearance Tab -> click the Series Style button -> Fill tab

You will have to enter an expression in the color property for the bar to be one solid color. The expression should look something like:
IIF(Fields!XAxisField.Value < 0, "Red", "Green")

You can do this if the axis value is a number or date. You may have to nest a couple of IIF statements if there are a lot of sections that you want to use. I don't think you can use the legend provided by reporting services for what you want it to accomplish since it is based on the series fields. You can create your own legend with a few lines, textboxes, and property changes though.

Colouring the chart plot area based on x-axis scale

Hi,

I have a report based on a line chart.

The values on X-axis are scaled from -100 to +100. I want to colour the band from -100 to 0 with red colour and that from 0 to +100 in green colour, and i want to provide legend for these bands/sections. How can i do this?

A prompt response would be really appreciated

Thanks a lot!!

Simranjeev

Hi!

This is a little urgent so i would really appreciate some response.

This doesn't look like a tough thing to do but i can't find a way to do it within the chart properties.

Basically i would like to divide the chart (plot area) into multiple vertical bars, each having a different colour. The colour is determined by the range that vertical bar covers on the x-axis

Thanks!

Simranjeev