Peer-to-Peer Transactional Replication (three or more participating databases): What if all the nodes are working at the same time

In the topologies that have three or more participating databases.
What if all nodes are working at the same time? "The topology is not partitioned by time.".
location 1 will do insert/update/delete/read in the same time location 2 also will do insert/update/delete/read .......
**Data that will be added by each location is different(each location has its own primary key ranges).
Is it recomended to use Peer-to-Peer Transactional Replication in such scinarios?

Read these
https://msdn.microsoft.com/en-us/library/ms151196.aspx
http://www.brentozar.com/archive/2012/01/highly-available-local-replication/
The only problem that you have to tackle is what happens when the same data is being updated in multiple locations at the same time. If that is not a possibility with you then p2p is a good choice. Check the above links you will have a better understanding.
Regards, Ashwin Menon My Blog - http:\\sqllearnings.com

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In SQL Server Transactional replication what changes I can do on subscriber table
Thanks

Hi Ajay.G,
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Hi Everyone,
We have a transactional replication(one publisher and multiple subscribers). If I drop one of subscribers, will this cause any locking or performance problem for publisher or other subscribers? I am going to do that using SSMS.
Thanks
Aspet
A.G

Hi Mourmansk,
Agree with others，In addition, before you deleting Subscriber, we need to verify that Publisher define a source database where replication starts, Subscriber is the destination database where replication ends. If you want to drop a Subscriber, it means that
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http://social.technet.microsoft.com/Forums/en-US/1354e29f-4904-46dd-8e64-d1150263ba7c/unable-to-drop-subscriber-from-replication?forum=sqlreplication
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http://msdn.microsoft.com/en-us/library/ms151861.aspx
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I have setup Transactional Replication for one of our databases where one table with about 5mln records is replicated to a Subsriber database. With every replication about 500-600.000 changed records are send to the Subscriber.
Since one month I see very strange behaviour when I add about 10 indexes to the Subscriber table. As soon as I have added the indexes replication speed becomes extremely slow (almost 3 hours for 600k records). As soon as I remove the indexes the replication
is again very fast, about 3 minutes for the same amount of records.
I've searched a lot on the internet to solve this issue but can't find any explaination for this strange behaviour after adding the indexes. As far as I know it doesn't have to be a problem to add indexes to a Subscriber table, and it hasn't been before on
another replication configuration we use.
Some information from the Replication Log:
With indexes on the Subscriber table
Total Run Time (ms) : 9589938 Total Work Time : 9586782
Total Num Trans : 3 Num Trans/Sec : 0.00
Total Num Cmds : 616245 Num Cmds/Sec : 64.28
Total Idle Time : 0
Writer Thread Stats
Total Number of Retries : 0
Time Spent on Exec : 9580752
Time Spent on Commits (ms): 2687 Commits/Sec : 0.00
Time to Apply Cmds (ms) : 9586782 Cmds/Sec : 64.28
Time Cmd Queue Empty (ms) : 5499 Empty Q Waits > 10ms: 172
Total Time Request Blk(ms): 5499
P2P Work Time (ms) : 0 P2P Cmds Skipped : 0
Reader Thread Stats
Calls to Retrieve Cmds : 2
Time to Retrieve Cmds (ms): 10378 Cmds/Sec : 59379.94
Time Cmd Queue Full (ms) : 9577919 Full Q Waits > 10ms : 6072
Without indexes on the Subscriber table
Total Run Time (ms) : 89282 Total Work Time : 88891
Total Num Trans : 3 Num Trans/Sec : 0.03
Total Num Cmds : 437324 Num Cmds/Sec : 4919.78
Total Idle Time : 0
Writer Thread Stats
Total Number of Retries : 0
Time Spent on Exec : 86298
Time Spent on Commits (ms): 282 Commits/Sec : 0.03
Time to Apply Cmds (ms) : 88891 Cmds/Sec : 4919.78
Time Cmd Queue Empty (ms) : 1827 Empty Q Waits > 10ms: 113
Total Time Request Blk(ms): 1827
P2P Work Time (ms) : 0 P2P Cmds Skipped : 0
Reader Thread Stats
Calls to Retrieve Cmds : 2
Time to Retrieve Cmds (ms): 2812 Cmds/Sec : 155520.63
Time Cmd Queue Full (ms) : 86032 Full Q Waits > 10ms : 4026
Can someone please help me with this issue? Any ideas?
Pim

Hi Megens:
Insert statement might be slow with not only indexes and few others things too
0) SQL DB Blocking during inserts
1) If any insert triggers are existed
2) Constraints - if any
3) Index fragmentation
4) Page splits / fill factor
Without indexes inserts will be fast because, each time when new row going to insert to the table, SQL Server will do
1) it will check for the room, if no room page splits will happen and record will placed at right place
2) Once the record updated all the index should be update
3) all these extra update work will cause can make insert statement bit slow
Its better to have index maintenance jobs frequently to avoid fragmentation.
If every thing is clear on SQL Server Side, you need look up on DISK IO, N/W Latency between the servers and so on
Thanks,
Thanks, Satish Kumar. Please mark as this post as answered if my anser helps you to resolves your issue :)

Transactional Replication - Slow running sp_MSget_repl_commands

We are running transaction replication, with a publisher and a single subscriber located in different data centres. The distribution database is located with the subsciber.
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Peer-to-Peer Transactional Replication (three or more participating databases): What if all the nodes are working at the same time

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