Replication Questions???
Mar 31, 2006
Hi,
I'm having a headache with the following questions weavering around...Hope that someone can help me with the answers.
1) I've implemented a immediate updating transactional replication on 2 servers. The loopback detection is also set to true. Under normal circumstances, when there is an transaction at the subscriber, it should be replicated to the publisher. However, this was not the case here. There were some transaction in the subscriber, but they were not replicated to the publisher. Is it because of the "loopback detection" option?
2) If a bi-directional transaction is to be implemented as according to the BOL, there will be 2 distributors. When a publisher has a transaction, it will be replicated to the subscriber. When the subscriber commit the transaction, will the transaction be sent back to the publisher's distribution database? or will the distribution agent at the subscriber will know that it originated from the publisher and will not sent it to the publisher?
Pls pardon my long msg. Any advice is welcome.
View 3 Replies
ADVERTISEMENT
Mar 26, 2001
I am reading up on Replication because soon I must set up merge replication at two branch offices. The reading has confused me a little....
1. Do I have to run the Distribution database on another server than the one holding the headquarters database? I tried to configure replication on this server, and I get a message that says, "SQL Server Agent on ROCK currently uses a system account, which causes replication between servers to fail. In the following dialog, specify a domain account for the service startup account."
It then presents a dialog allowing me to add an account and password. I mistakenly assumed that it would create the account if it didn't exist, but it warned me that it didn't have sufficient rights to check the account, and was I sure that it existed with all the rights required? So I cancelled, to send this message :-)
When it says "Account", I assume it means create a virtual user? What rights should I give the account? I assume it will have to be able to do anything. What database should I give it as the default? Could I have the first agent not use a system account, and thereby run the distribution server on the same machine? (I have another machine available, I just want to know if I need it, or at what point of activity I would need it.) Will it matter whether the agent on this third machine usese a system account?
2. Virtually all the tables in the database use incrementing keys. Will I have to modify this at each branch, say seeding Branch 1 to start with values of 1, Branch 2 with values of 10000, and branch 3 with values of 100000 (or other sufficiently disparate values to prevent PK collisions?
3. How frequently can I merge the databases? Can it be done at different intervals with different tables? (I.e., there are a small number of tables in which updated values would be ideally propagated as soon as possible, while most of the tables are less critical. We sell tickets, so quantity-available is pretty important, whereas someone in one office hardly cares who purchased the tickets on a sale recorded in another office. This data we can wait for, but the counts are critical.)
Advice, etc. from those experienced in implementing replication would be most appreciated.
Thanks!
View 2 Replies
View Related
Mar 20, 2001
We have a subscription that is failing due to '24000[Microsoft][ODBC SQL Server Driver]Invalid cursor state'
My thought was to unsubscribe and subscribe again synching the tables.
HOWEVER, I have been told that I cannot drop the table in question
and have been asked to truncate instead.
There are over 25 subscriptions to this article, so I am unable to
modify the actual article.
I started playing in the pubs database to see if I can do it before
I messed with production...
I thought if I just change the .sch script located in the repldata direcotry to truncate table instead of create table, that would be it...
However the drop table command seems to come before it even reaches
that script, cause the error I get now is 'S0002[Microsoft][ODBC SQL Server Driver][SQL Server]Cannot truncate table 'authors', because this table does not exist in database 'pubs'.'
My question is - when and where does the "drop table" command get executed
and can I modify it without effecting the other subscriptions?
I checked the sysarticles and the column that says del_cmd is Null....
PLEASE HELP....
View 1 Replies
View Related
Dec 15, 1998
1) Do I have to install publishing on both servers (A and B) even though one will be publisher and the other will be subscriber.
View 1 Replies
View Related
Dec 15, 1998
1) Do I have to install publishing on both servers (A and B) even
though one will be publisher and the other will be subscriber.
2)a. Can named pipes be used for communication between these two servers
which are on the same domain but not on the same network. Why or why
not, whatever the answer may be?
b. If I use TCP/IP, it the connection set up using the client
configuration utility? How is the connection string set up in this
case?
c. Suppose the publishing server was not using Net-Beui. Could this pose
any problems for communication. (is using lmhosts sufficient in this
scenario)
3) I have set up a (remote) SQL Server to be a Publisher/ Distributor.
Both SQL servers have been configured to be remote servers relative to
each other. Following are the steps I have carried out to set up
replication:
______On the Publication Server (a remote server)
I went to Server --> Replication Configuration ---> Install Publishing
Next, I chose a local distribution server. I think that the
instdis.sql script ran fine because the distribution database was
installed successfully.
___Next, I went into Manage Publications from Server menu to set up
the publications.
_____________When I went the subscription server to subscribe to the
published articles, I got the following error message:
Error 14093: [SQL Server] You must be System Administrator (SA)
or Database Owner (dbo) or Replication Subscriber (repl_subscriber)
to execute the stored procedure.
PS
Please Help
View 1 Replies
View Related
Feb 16, 2007
Hello, I am playing around with the replication feature within mssql.
The system that I am developing requires a master database at a remote location, possibly at a data centre and have a onsite database. The idea of having a local database is that the system can be running in the event of no internet connection and all the local databases update the master server and the master server updating all the local databases so they all have the same data.
I have some questions.
1. I create a publication on the master server and setup a subscription on a local database; does information only go 1 way? Or do I need to setup a publication on the local database and setup a subscription on the master server for data to go both ways?
2. What is the best type of replication for information on all databases to be up-to-date with each other, Merge?
3. Is there any limitations with the replication feature that I need to be aware of?
4. Is there anything that I need to keep in mind when I set this up?
5. How much bandwidth does replication take up, I know there are a lot of factors involved when trying to calculate this type of thing but a good idea would be good.
Thank you for all your replies.
*edit* I am testing with 2 copies of mssql enterprise trial
View 2 Replies
View Related
Oct 27, 2005
1. When intitializing a new subscriber, data that is on the publisher is not being transferred to the new subscriber. Why?
2. Data that is already on the subscriber is not being uploaded to the publisher. Why?
3. When I perform a data validation, the validation fails, but there is no option to resolve the failure (ie, transfer data one way or the other). Why?
4. For the conflict resolver: I have a rowguid and a timestamp column on each article in the publication. It was my hope that by having the timestamp, I could avoid the need to manually reconcile the conflicts between publisher and subscriber. However, I see that the conflicts are still there and still require manual intervention to eliminate. Why?
5. Where is there additional documentation on the conflict resolver (such as what values to enter in the field "Enter information needed by the resolver")?
6. What is a "Local Subscriber"? As in the statement "Use the default merge resolver and create local Subscribers." as described in the "Choosing a Resolver" topic in SQL BOL.
7. What is a "Global Subscriber"? Same reference.
Sorry for all the ignorance. Replication is relatively new to me.
Regards,
hmscott
View 1 Replies
View Related
Oct 21, 2006
I have a couple questions about replication (for both 2000 and 2005 servers):
1. which system tables/dmvs/system sprocs can I look at to determine which columns of a table are being replicated?
2. which system tables/dmvs/sprocs can I call to get metadata about publishers and subscribers?
Thanks!
View 2 Replies
View Related
Mar 10, 2008
This customer has an SFA application. They are using NET CF 2.0 SP2, SQL Mobile and Merge Replication with SQL Server 2005. The device they are using are Symbol MC7094. It has integrated phone and is a Windows Mobile 5 Aku 3.
They have set up 5 differents publications for this applications. His business case makes them to have 1 publication to recreate all database structure and the first population of the tables.
For this they use AddSubscription .. Syncronize and the DropSubscription
They use the another 4 publications to sync particular tables because they don€™t want to sync everything, every time. All publications point to the same snapshot.
Each time they want to use one of this publication they instance the SqlceReplication object, then AddSuscription.. Synchronize .. then DropSubscription..
They have one of this publications that use a filter 1=0. Doing the previous steps SQLCE doesn€™t track the change and doesn€™t upload the data of the sql ce table to the server. It seems SQL Server recognize it as a new Sincronization, delete the records of the client and doesn€™t upload the changes (if I don€™t do the DropSubscription it works perfect) I can reproduce that using a device or an emulator.
They have 100 devices via GPRS - VPN. They need to be assure that this Add / DropSubscription will assure they don€™t lose the information. They want to assure all the process of sync is fine just to go to the carrier and make some GPRS connection monitor and test.
How is the best way to approach where the NET CF application needs to use more than one publication to the same database? I have suggested to put all the transactional tables in the same publication but due the business case it is not possible. What are the risks to use many publications?
Another question€¦ each X hours they do a full sync using the first subscription the application returns the next message: The snapshot for this publication has become obsolete. Why this happens? Due the changes in the another publications? How could we manage that to avoid this message? Note: All the test were doing via cradle and GPRS with the same results.
View 3 Replies
View Related
Sep 5, 2005
Our database has grown to the point where our current server is struggeling with the query load. One option is to get a 4 processor machine with 16GB of RAM, but I'm also looking at transactional replication as a solution. Currently we run dual Xeon with 4GB of ram (using the /3GB switch in the OS) We have SQL 2000 Enterprise.
The idea is to setup a secondary server with transactional replication pushed from the main server, so that some SELECT-only queries can be executed on the secondary server - thus taking load of the main one. We should be able to add PKs to the small number of tables that currently don't have them, and we should be able to run all updates / inserts on the main server.I'll setup a push-subscription for the entire DB (maybe excluding some log tables) and then for ceratain stored procedures I'll direct our applications to use the backup instead of the main server.
So: Is this a good idea? Is it easy to backup the server using transactional replication? How much extra overhead will this mean for the main server?
View 1 Replies
View Related
Aug 28, 2007
All,
We have SQL 2005 db mirror configured with a witness server for high availability. Node 1 is the principal and Node 2 is the mirror. A nightly job creates a snapshot on Node 2. The snapshot is used for previous day reporting queries. We have now been asked to present another copy of the database for near-time reporting. I thought about possibly adding a peer-to-peer replication as part of my environment but was hoping to see what everyone else out there is doing.
Regards,
Ian
View 1 Replies
View Related
Jun 1, 2006
I can choose synchronization direction for articles: a) Bidirectional b) one way
1) Is that possible somehow to replicate the schema only of an article but no synchronization / zero direction :-)/
2) Same question about columns, I should replicate schema only for few columns, but without data synch. These columns are freely updateable at anywhere (publisher and subscribers), but the data changes shouldn't be replicated.
Thanks for the answers in advance
View 6 Replies
View Related
Jul 17, 2007
Hi,
I am seeing an unusual pop up when I try to hit the Website directory. I have setup replication setup for mobile units on IIS 6.0. When I try to hit the - http://defaultwebsite/test/sqlcesa30.dll - it tells me to open, save for cancel the sqlcesa30.dll file. This is weird. I have not seen this before.
When I hit the path from a internet browser - http://defaultwebsite/test/sqlcesa30.dll - it should come back with something like SQL Mobile Agent 3.0.
Any thoughts,
P
View 1 Replies
View Related
Mar 22, 2006
You will all have to excuse my ignorance. I'm a developer who also doubles up as a development DBA. I am however not particularly knowedgeable about all the really important DBA stuff.
We've built a small BI solution using SQL Server 2000. Our problem is that our server is getting on in years (5) and doesn't really have enough disk space or grunt. We havce a number of summary cubes that we've optimised quite successfully but our billing line level cubes run to 60 million rows and, well, they're about as quick as a dead ferret. Especially given the stupid queries our data analysts keep running.
We have however proved our point. That this can be done and indeed SQL Server can do it. So we're now looking at some infrastructure spend and some new copies of SQL2005.
But i need some advice. Our user base is climbing through the roof, we originally had 10, now we have closer to 50 and at this rate it'll be a couple of hundred by the end of the year. We're using a plugin called XLCubed to deliver that data into Excel from the Analysis Server.
The OLTP database that sits behind it is fairly robust but we have a number of web based apps (mostly lookup systems) that want to use the nice shiny new accurate tables of data we have created.
So I'm looking at a fairly big server to hold the OLTP DB, this will also serve up live data to our web apps. Its worth pointing out that the source data system is a batch system that processes overnight so we load data from yesterday at 6pm each evening and process our cubes and stuff overnight. Thus the data is a couple of days out of date. Don't laugh they used to use MS Access and got one mangy data set a month so this is a massive leap forward.
I wanted to mirror the DB to another machine but I also want to have a separate Cube Server. I wondered if the cube server could use the mirror to read its data from as opposed to loading the Main Server (the mirror would be an identical box) we would also have a separate box running some of our other systems acting as the witness.
I also wonderd about exporting the Cubes onto file shares for use locally as opposed to via the server which is how they connect now.
We have been using Reporting Services and some of the queries the devs write are not exactly efficient. So I was also planning on clustering a pair of smaller servers into a reporting farm. Could I use another SQL Server to serve data up to them? Could I use a DB snapshot to copy the data required to this server? What are the time / size implications of using a snapshot and replicating it over each night?
Any suggestions for places to read up on this? I've looked at the MS marketing blurb and while its big on buzzwords its light on specifics. Like how it actually works and how you would actually configure it to do some of this and what the implications would be.
Any advice?
many thanks
Steve
View 4 Replies
View Related
Dec 20, 2006
Our current setup is as follows:
serverA - DB1, DB2
ServerB - DB3
ServerC - DB4, DB5
Question 1: In peer-to-peer, is this the right setup?
ServerA - DB1, DB2, DB3, DB4, DB5
ServerB - DB1, DB2, DB3, DB4, DB5
ServerC - DB1, DB2, DB3, DB4, DB5
Question 2: Are we backing up all DBs or just DB1?
Question 3: When serverA.DB1 goes down, does it affect the other DB1s?
Question 4: Can any of the DBs publish to any server say a reporting_serverG that is outside the peer-to-peer topology.
Question 5: Is it best to have .mdf, .ldf, tempdb, etc. on local drive or in the SAN?
Question 6: What is the recommended NLB hardware needed to handle peer-to-peer?
View 4 Replies
View Related
Mar 3, 2006
1. Is it legal and OK to use a MSDN SQL copy on a production environment or is it strickly for test environments ??
2. If I own a legal copy of SQL 7 with 5 cals, can I legally use SQL MSDE and have more than 5 people access my SQL server or am I also limited to 5 users as my original ??
Sorry I am a newbie at this SQL thing.
View 1 Replies
View Related
Jun 15, 2007
I'm getting this, after upgrading from 2000 to 2005.Replication-Replication Distribution Subsystem: agent (null) failed.The subscription to publication '(null)' has expired or does notexist.The only suggestions I've seen are to dump all subscriptions. Sincewe have several dozen publications to several servers, is there adecent way to script it all out, if that's the only suggestion?Thanks in advance.
View 3 Replies
View Related
Sep 13, 2007
Hi,I have transactional replication set up on on of our MS SQL 2000 (SP4)Std Edition database serverBecause of an unfortunate scenario, I had to restore one of thepublication databases. I scripted the replication module and droppedthe publication first. Then did a full restore.When I try to set up the replication thru the script, it created thepublication with the following error messageServer: Msg 2714, Level 16, State 5, Procedure SYNC_FCR ToGPRPTS_GL00100, Line 1There is already an object named 'SYNC_FCR To GPRPTS_GL00100' in thedatabase.It seems the previous replication has set up these system viewsSYNC_FCR To GPRPTS_GL00100. And I have tried dropping the replicationmodule again to see if it drops the views but it didn't.The replication fails with some wired error & complains about thisviews when I try to run the synch..I even tried running the sp_removedbreplication to drop thereplication module, but the views do not seem to disappear.My question is how do I remove these system views or how do I make thereplication work without using these views or create new views.. Whyis this creating those system views in the first place?I would appreciate if anyone can help me fix this issue. Please feelfree to let me know if any additional information or scripts needed.Thanks in advance..Regards,Aravin Rajendra.
View 2 Replies
View Related
Jan 17, 2002
Hi,
In my production box is running on SQL7.0 with Merge replication and i want add one more table and i want add one more column existing replication table. Any body guide me how to add .This is very urgent
Regards
Don
View 1 Replies
View Related
Aug 22, 2007
Hello,
I have this problem on a Production database.
DBCC OPENTRAN shows "REPLICATION" on a server that is not configured for replication. The transaction log is almost as large as the database (40GB) with a Simple recovery model. I would like to find out how the log can be truncated in such a situation.
Thank you.
View 4 Replies
View Related
Mar 6, 2007
Hello,I'm getting the following error message when I try add a row using aStored Procedure."The identity range managed by replication is full and must be updatedby a replication agent".I read up on the subject and have tried the following solutionsaccording to MSDN without any luck.(http://support.Microsoft.com/kb/304706 )sp_adjustpublisheridentityrange (http://msdn2.microsoft.com/en-us/library/aa239401(SQL.80).aspx ) has no effectFor Testing:I've reloaded everything from scratch, created the pulications from byrunning the sql scripts generated,created replication snapshots andstarted the agents.I've checked the current Identity values in the Agent Table:DBCC CHECKIDENT ('Agent', NORESEED)Checking identity information: current identity value '18606', currentcolumn value '18606'.I check the Table to make sure there will be no conflicts with theprimary key:SELECT AgentID FROM Agent ORDER BY AgentID DESC18603 is the largest AgentID in the table.Using the Table Article Properties in the Publications PropertiesDialog, I can see values of:Range Size at Publisher: 100,000Range Size at Subscribers: 100New range @ percentage: 80In my mind this means that the Publisher will assign a new range whenthe Current Indentity value goes over 80,000?The Identity range for this table cannot be exhausted! I'm not surewhat to try next.Please! any insight will be of great help!Regards,Bm
View 1 Replies
View Related
May 26, 2015
What is the main difference between snapshot and transactional and merge replication?
View 5 Replies
View Related
Jul 28, 2006
Hi,
I have a VB.net app that access a SQL Express database. I have transactional repliaction set up on a SQL 2000 database (the publisher) and a pull subscription from the VB.net app. I use RMO in the VB app to connect to the publisher. My problem is I am getting some strange behaviour as follows
- if I run the app and invoke the pull subscription it works fine. If I then close my app and go back in, I can access my data without any problem
- If I run the app and try to access data in my SQL Express database it works fine. I can then close the app, reopen it and run the pull subscription it works fine
however.......
- if I run the app, invoke the pull subscription (which runs fine), and then try to access data in my local SQL Express database without firstly closing and reopening the app, I get a login error
- if I run the app, try to access data in my local SQL Express database (which works fine), and then try to run the pull subscription I get a "the process cannot acces the file as it is being used by another process" error. In this case I need to restart the SQL Express service to be able to run replication again.
I get exactly the same behaviour when I use the Windows Sync tool (with my app open at the same time) instead of my RMO code to replicate the data.
I am using standard ADO.Net 2 code to access my SQL Express data in the app and closing all connections etc
Any advice appreciated !
Thanks
Ronan
View 2 Replies
View Related
Aug 27, 1999
I have some tasks that I need to accomplish within T-SQL but cannot find
a means to accomplish them.
They are..
1. Check for the existance of an external text file.
2. Count the number of rows in an external text file.
3. Be able to run the BCP command from within T-SQL. I am currently using
the BULK INSERT command which works fine but it does not allow the following..
a. Error log for failed inserts.
b. A command output file.
Any information would be greatly appreciated.
Jim
View 1 Replies
View Related
Sep 2, 1999
I am tying to call BCP to output the contents of a table to a text file from with in a stored procedure.
The procedure will be called from an ASP page ...
My question is were does the file get created ??? I want to create the text file on server ONE and SQL server is running on server TWO and IIS is running on server THREE... do i have to have a drive letter mapped to server ONE and if so is it mapped on the SQl server or the IIS server ....
ie:
exec master..xp_cmdshell bcp db..table out h:est.out -Uxx -Pxx -Sx
thanks for any help on this subject ...
Rob
View 1 Replies
View Related
Aug 27, 1999
I have some tasks that I need to accomplish within T-SQL but cannot find
a means to accomplish them.
They are..
1. Check for the existance of an external text file.
2. Count the number of rows in an external text file.
3. Be able to run the BCP command from within T-SQL. I am currently using
the BULK INSERT command which works fine but it does not allow the following..
a. Error log for failed inserts.
b. A command output file.
Any information would be greatly appreciated.
Jim
View 1 Replies
View Related
Aug 4, 1999
I have two questions,
1) Could anyone please point me in the right direction concerning information pertaining to NT Server Enterprise Edition verses NT Server Workstations. We are having problems running SQL Server 7.0 and the Enterprise Edition together on the same machine and was wanting to find information about compatability issues, if there are any,
2) I, on a SQL Server 6.5 database shrunk it by 2 Gb. When I looked to see if SQL Server released those 2 Gb back to the hard drive, I was amazed that it didn't! Did I miss something or will SQL Server 6.5 not release the space because of the initial set-up. And why did SQL Server 6.5 automatically take the space from the Transaction logs when neither of the devices were specified? Is the Transaction Log the default area for shrinkage?
Thanks in Advance!
Daimon Russell
daimon_r@hotmail.com
View 1 Replies
View Related
Nov 5, 2007
Hi, does anyone know how to explain how SQL transactions get mapped into TDS and TDS gets mapped into TCP/IP packets?
Or can you please point me in the right direction? I need to figure out how TDS and TCP/IP relate?
We're using replication and are having some latency issues and I'm trying to find out how SQL handles TDS and TCP/IP etc...
Thanks for your time.
View 6 Replies
View Related
Feb 7, 2002
1. When we create DTS in SQL Server through DTS designer, where are they stored physically?
2. What would be the best way to modify a DTS without using DTS designer?
3. Is there any other way to create DTS apart from DTS designer and Visual Basic?
4. Is there any website which has detailed information for DTS? (which has more FAQs like above?)
In our production environment, we keep changing the servers frequently, and everytime that happens, I have to change the connection properties in all the DTS going to them one by one.
thanks,
sanjay.
View 2 Replies
View Related
May 4, 2001
I am not too familiar with SQL Server, but my supervisor gave me the task of finding out the difference between SQL Enterprise and SQL Standard. He also asked me to research the difference between processor licences and client access licences. I will use the Internet as a resource, but I would also like to hear the opinions of someone who uses these programs or is knowledgable about them. So please any suggestions or any useful links would be very helpful.
View 3 Replies
View Related
Jun 17, 2004
I have two questions.
1) If a database is suspect we can have that trace from sysdatabases.There is a column named status.My question is in case of suspect datatbase what will be value in the field status of sysdatabases?
2) The password of an user login(created by using sp_addlogin stored procedure or any other way) is stored in the table sysxlogins of master database.The password is stored in a varbinary format.How can I get the actual password(means in a char format)?I mean how can I convert the varbinary value to a readable format?
View 1 Replies
View Related
Jun 21, 2004
Hi All,
I am new in SQL SERVER 2000.I have few questions -
1) WHAT WILL I DO TO TRUNCATE THE SIZE OF A TRANSACTION LOG?
2) WHAT WILL BE THE STEPS OF BUILDING THE MASTER DATABASE?
3) WHAT WOULD BE THE PLAN OF ACTION WHEN SQL DOES NOT STARTS UP?
4) WHAT WOULD BE MY PLAN OF ACTION WHEN SQL DB GETS CORUPTED OR STARTS IN A SUSPECT MODE?
View 1 Replies
View Related
Aug 31, 2004
Could I do periodicity backups to another computer(mediaserver) using VDI??
I mean , Could I config a Virtual Device so that I can do backups like disk or tape, I can use
'backup database ...to virtual_device='...' ' to do backup to another computer(mediaserver)?
suppose that I have finished the interface of mediaserver.
If this is impossible,how can I do periodicity backups to another computer??
I have finished a program using VDI that can do backup to another computer,and I know how to do periodicity backups to disk or tape. but I am puzzled about the periodicity backup using VDI.
How should I do?
Thanks,All.
View 4 Replies
View Related
