The automated distribution of transactional changes from a publishing database to one or more subscriber databases.

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35
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4answers
22k views

Clustering vs. transactional replication vs. availability groups

Assuming you need to make sure your application that relies on SQL Server 2012 as its database backend is available around the clock, even if one server machine fails. As a developer and not a DBA, I ...
9
votes
1answer
887 views

Initializing Transactional Replication From Backup

There is an option when setting up a publication for replication to Allow Initialization From Backup. We have been creating replicated databases for several years now and have always initialized from ...
7
votes
2answers
956 views

SQL Server : Transactional Replication Computed Column

I am a subscriber to a transactional replication subscription. I have no control over the publisher. I have read the following article about schema changes to the publication database: Make Schema ...
7
votes
1answer
1k views

Transactional Replication not sending all commands

I have a transactional replication topology as follows: NY Publication Database same server holds distributor NY - Subscriber LON - Subscriber HK - Subscriber We are using bog standard, one-way ...
6
votes
2answers
139 views

Transactional replication latency issue

I inherited database systems like this. Currently I have publisher database in SQL Server 2005 compatibility mode on Windows Server 2008 R2 with SQL Server 2008R2 SP2 machine. Distributor is on the ...
6
votes
3answers
3k views

Creating a read only replica of SQL Server database for reports

I've faced a problem when my .Net web application is running slow, even when I've optimized all queries. As it turned out another developer, who is making reports runs a bunch of non optimized queries ...
6
votes
1answer
2k views

How to restore replication after server crash

We had two databases on one SQL Server 2005 instance with transactional replication between them (3 tables as articles). This server acted both as publisher and distributor. Then the RAID on the ...
6
votes
1answer
2k views

Replicated Database Log File Maintenance

I have a database on the publisher that is involved in replication (publication configured for merge and transaction). Trying to regain control of the log file for this particular database (VLF count, ...
6
votes
0answers
115 views

Low performance, high availability, replicated key/value store with audit trail

I'm looking for a database system with fairly specific specs. I've looked most of the major relational databases and NoSQL products out there and did not find one that even remotely satisfied my ...
5
votes
2answers
4k views

SQL Server 2008 R2 Transactional Replication “Cannot insert explicit value for identity column…”

Right now I'm having an "identity crisis" with transactional replication in SQL Server 2008 R2. The database is running in compatibility 90. There's a table that has an identity column and won't ...
5
votes
1answer
288 views

Transactional Replication: can create 52 publication, but creating 53rd leads to problems

My apologies in advance for a long post, but I was really trying to make sure I do my due diligence before turning to the community for help, so here it goes. I am working on a proof of concept with ...
5
votes
3answers
3k views

What type of SQL Server Replication fits our scenario? Merge or Transactional?

Background In our current setup, we have a single SQL Server 2005 instance on our remotely hosted web server. We additionally have another (non-MSSQL) database which we use for our POS system, which ...
5
votes
2answers
4k views

Recommended distributor architecture for transactional replication?

We are planning to create a Transactional replication on 2 nodes of SQL Server 2008 R2, each node will be a publisher and a subscriber. What is the best practice in order to have this scenario done? ...
5
votes
1answer
216 views

missing indexes on distributor database

Looking for missing indexes on my distributor databases, I surprisingly find too many. the tables that need to be indexed are generally 3: MSrepl_commands MSlogreader_history ...
5
votes
1answer
273 views

Transactional replication creating a fixup index that's sleeping, but blocking other processes

I've just migrated my ERP database server from SQL Server 2000 to SQL Server 2008 R2 (both Enterprise Edition) and that migration went fairly smoothly. However, now that I'm trying to recreate ...
5
votes
1answer
956 views

SQL Server Troubleshooting Replication and Long-Running fn_dblog query

I am trying to get (pull) Transactional Replication working again for a subscriber. Currently, in Replication Monitor I am seeing messages in the Publisher to Distributor tab and the Distributor to ...
4
votes
2answers
2k views

Transactional Replication Concerns

We are debating an architecture that employs sql server 2012 and transaction replication. Idea is to offload reporting activity to a secondary server and have the ability to include/exclude what is ...
4
votes
1answer
241 views

Moving Transaction Data To Another Database For Reporting Purpose

We got a requirement from our developer group, to do the followings: Frequently (every 30mins) move the transaction data out of live database to another database Secondary database will be utilize ...
4
votes
1answer
191 views

SQL Server transaction replication ignores DML which does not change data

I have a transactional replication setup between the two servers and I noticed that if a run a statement similar to this: UPDATE mytable SET mycolumn = mycolumn the replication somehow knows to ...
4
votes
2answers
5k views

Snapshot for transactional replication taking too long for large database

I want to establish a transaction replication of a large database (200GB). But when I create the publisher and the snapshot agent starts, it takes very very long time and it sticks on the following ...
4
votes
1answer
207 views

Two-way replication between SQL Server 2008 R2 and SQL Server 2008 R2 SP3

I know that in SQL Server you can't have two-way replication between different versions. I wanted to know if SQL Server 2008 R2 and SQL Server 2008 R2 SP3 are considered "different versions"? Did ...
4
votes
1answer
44 views

MSDTC and its relation to SQL Server

So I'm doing some research on MSDTC and its role it does or does not play in various types of calls within SQL Server, and it got me thinking on the following questions: Are there any 3rd party ...
4
votes
1answer
52 views

Transactional Replication to a Version Two Versions Older--Count by Name or Number?

According to Microsoft SQL Server documentation, a "Subscriber to a transactional publication can be any version within two versions of the Publisher version." In this context, are versions named ...
4
votes
2answers
7k views

Why do I get “The initial snapshot for publication is not yet available.”?

We are using Transactional Replications with updatable subscriptions. 1 publisher, 1 subscriber. SQL Replication started encountering a constraint error on 3/6 at 10AM because people at two different ...
4
votes
1answer
5k views

SQL Server 2008 R2 replication high delivery latency

I am seeing an unusually high delivery latency between our distributor and subscribers and i do not understand why. We have in this configuration 3 sql servers using transactional push replication to ...
4
votes
1answer
1k views

Replication between SQL Server 2005 and Azure database

Is it possible to set up transitional replication between a SQL Server 2005 and a SQL Azure database? My server is nearing end of life and I would rather migrate to a cloud infrastructure instead of ...
4
votes
2answers
3k views

transactional replication, failing with communication link failure half way through bcp

I am trying to replicate to a 4th subscriber on a remote site. 3 subscribers work fine locally. the other difference is this is a 2012 subscriber from a 2008 r2 publisher and remote distributor. When ...
4
votes
1answer
234 views

Replication throw an error after failover mirror partner is down in SQL Server

Received an error mentioned below after failover when mirror partner is down. Error : to fail over to a database which is not configured for database mirroring. code: 22037, text: 'Invalid ...
4
votes
1answer
386 views

Updateable Subscriptions: Rows do not match between Publisher and Subscriber

I have transactional replication with updatable subscribers set up in SQL Server 2008. It has 3 subscribers and 1 publisher. I had to setup replication again due to some errors related to the database ...
3
votes
3answers
7k views

Is replication possible on two different domains?

I am implementing a database replication between different geograhical locations where each one is on a different domain. After going through all the process, when I start the agent it runs and stops. ...
3
votes
1answer
3k views

Best way to migrate a database involved in bidirectional replication

I have two SQL Server 2005 that are to be migrated to SQL Server 2008 R2. The original pair of servers contain a database that are involved in bidirectional transactional replication between them. In ...
3
votes
1answer
5k views

Transactional replication altering tables and adding stored procedures

I have a database that is replicated in several locations. It is setup as transactional replication. However, now I need to add more columns to the table. Add more stored procedures and etc. Hence, if ...
3
votes
2answers
579 views

Copying MySQL Raw Data Files for Master-Slave Replication and GTIDs

I have been developing and running a mysql-based web application (intranet-based) for some time now. I wish to establish a step-by-step sane sequence for creating a slave from the running MySQL master....
3
votes
1answer
551 views

With SQL transactional replication, does changing user permissions to a table trigger a new snapshot?

I was hoping to get some help with a SQL Server 2012 transactional replication scenario - or maybe just my understanding of where permissions are stored in SQL server. If I change a users permissions ...
3
votes
2answers
62 views

Replication DB move

I have 2TB of DB involved in SQL Server transactional replication. I want to move publisher DB files to a newer disk with minimum amount of downtime and without breaking replication. Please let me ...
3
votes
1answer
936 views

Transactional Replication to DB on Same Server instance

We have a SQL Server 2012 instance that contains a database with data for many product lines. We are looking for a way to take subsets of this data into another database on the same instance. This ...
3
votes
2answers
49 views

Is my Publisher database my actual source database or is it a new database?

I am setting up transactional replication for the first time and am working through my backup policies I need to set. Is my Publisher database my actual source database? Or is it a new database that ...
3
votes
2answers
51 views

Changing Database Transaction isolation level to SNAPSHOT for SQL Server replication “distribution” database

I have a couple transactional replication publications that make large changes (nearly 1 billion records) to a publication article. These transactions are captured by the log reader and stored in the ...
3
votes
1answer
77 views

Transactional Replication issues

I have a question, I am managing 2 SQL servers is Master Server (Publisher + Distributor) is Client Server (Subscriber) The client is basically owned by a client who is buying data from us. Both ...
3
votes
1answer
2k views

Should snapshot agent continue to run in transactional replication?

We have transactional replication running for a large number of publications on sql server 2008 R2 2 node active/active cluster. I have noticed that the snapshot agent job runs hourly and it looks ...
3
votes
2answers
1k views

Bandwidth comparison between log shipping and transactional replication

Which technique uses more network bandwidth: Log shipping Transactional Replication Can some one share any benchmarks for the same ? What would be the Memory and I/O impact on the Primary server ...
3
votes
2answers
1k views

Cleaning up transaction replication del/ins/upd stored procedures?

I'm referring to the ones that start with: dbo.sp_MSdel... dbo.sp_MSins... dbo.sp_MSupd... I've noticed they are not removed when I run exec sp_dropsubscription on the Publisher then run ...
3
votes
1answer
30 views

Maintenance Plan on Replication Subscriber

I have seven subscribers to a replicated publication using transactional replication in SQL Server 2012. Do I treat the subscribers just like a normal database and perform maintenance via a ...
3
votes
2answers
179 views

How to wait for SQL Server replication reinitialization via TSQL

We use transaction and push replication. Every night after the data import 2 replication targets are initialized with the following commands. USE [dbImport] -- Execute at the Publisher to ...
3
votes
1answer
2k views

sql server - NoSync subscriptions will need to be dropped and recreated

I am having this error message from the sql server replication monitor: Error messages: The subscription(s) have been marked inactive and must be reinitialized. NoSync subscriptions will need to ...
3
votes
1answer
1k views

Cannot delete publication

When attempting to delete a publication, I am getting the error cannot drop publication 'XX' cannot drop article 'XX'. The subscription has been deleted at the subscriber. Any ideas on how I can ...
3
votes
1answer
927 views

What is the difference between 'two way transactional replication' and 'peer to peer replication'?

Can someone explain in detail the exact differences between 2 way transactional replication and peer to peer replication?
3
votes
1answer
820 views

How to break out of error loop in transactional replication?

I was running some simple tests on a publisher and subscriber on the same instance: I inserted 50,000 rows into a published article and the data was correctly pushed to the subscriber. I ...
3
votes
1answer
42 views

SQL Server Replication

We had an issue with replication, where a large (7.5 million row) update was done on a 33 million row table. Replication converted that to 7.5 million individual update statements. When my alerting ...
3
votes
1answer
55 views

Identity management in Transaction replication with updatable subscription

I have migrated my publisher DB to new server yesterday. For migration what I did was removed subscriptions and publication completely backed up DB on which publication was configured restored DB ...