Creating And Configuring Custom Conflict Resolver.
Aug 12, 2005Hi
View 1 RepliesHi
View 1 RepliesHi there,
I have created a custom conflict resolver for an article that is using Merge replication. I can register my custom resolver OK, I can change my merge article to use my new custom resolver, but when a conflict occures the replication monitor shows the following errors:
Error messages:
No signature was present in the subject.
(Source: MSSQL_REPL, Error number: MSSQL_REPL-2146762496)
Get help: http://help/MSSQL_REPL-2146762496
The Custom Resolver Component for article 'BRANCH' does not have a valid digital signature. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147198713)
Get help: http://help/MSSQL_REPL-2147198713
At first I thought it was because my assembly wasn't signed, so I signed it. I still get the same error.
I have various debug statements in the assembly and I can see that Initialize and HandleChangeStates gets called ok, but no other overrides.
Can anyone help me please?
Thanks
Graham
Hi!
I'm trying to create a custom conflict resolver for SQL Server 2000 in
C# but i can't seem to find any source code examples of a *.dll where i
can actually see what needs to be done.
Any help is welcome.
Thanks
Hi everyone,
I am working on a COM-based custom conflict resolver (vb.net) for a merge replication problem that I am having. This is what I am trying to accomplish. 1. Have a Last_Upd_Dt column. 2. When there is a conflict between publisher and subscriber on a column, the winner is the most recent date in Last_Upd_Dt and want the value for that column from that source. 3. If there is no conflict on a column and the column was updated by either the publisher or subscriber, I want to keep the change made by the publisher or the subscriber. (i.e publisher made change in col #1, subscriber made change in col #2, no conflict, the resulting row will now have the col #1 value from publisher, col # 2 will have value from subscriber. Essentially merging the changes.)
Does anyone have any examples of a COM-based Conflict Resolver that implements ICustomResolver for SQL Server 2005? Can this be done using the Business Logic Handler (examples?) ?
TIA
Hello,
I see that MS has a conflict viewer that can be accessed by managment studio, however I would like to create one with some customized options. Is there a sample of code somewhere to start this? I could really find anything in BOL. Thanks in advance.
John
I created a stored procedure based custom conflict resolver in SQL 2005, I return the winning result set and also save that result set to a test table to compare the values. The values saved to the test table are correct but some of the values saved as the conflict winter are truncated.
Example a char(3) filed is updated at the subscriber as €˜111€™ and updated at the publisher as €˜222€™, in my custom conflict resolver if I use the value from the subscriber the conflict resolver updates the field as €™11 €˜, if I use the publisher value the conflict resolver updates the field as €™22 €˜. Now the same records is saved to the test table correctly as either €˜111€™ or €˜222€™ depending on the logic I used. So the result set has the correct values, its after the custom conflict resolver is called where the values is somehow truncated. Has anybody run into this before and what steps can I take to avoid this.
Thank you,
Pauly C
Hi Everyone!
Here another post on replication.
When conflict occur, I want the user to be able to select witch row to keep and witch to delete.
I've look for system stored procedure, that could help me do the resolution but I've founded nothing.
So I've thought that I could do it by hand, with UPDATE/DELETE query
Take the row in the %TABLE_NAME%_Conflict table and copy it into the real table, than delete the row.
I this the good way of doing it?
Is there any other way?
Thanks !
Hello,
I'm trying to setup the Interactive Conflict Resolver in my C# app via RMO. (using SQL Server 2005)
The only article I can find on MSDN or anywhere is involing T-SQL. Can someone please shed some light on this for me specificaly on the subscriber side.
Thank you! Chris
Hi, I'm replicating a database between two instances of Sql 2000 using Merge Replication. I have no custom resolvers at present but I'm seeing something unexpected.
View 5 Replies View Related
Hi all,
I need to write a custom conflict resolver for an application using merge replication. It's relatively simple logic - compare the two rows from the publisher and the subscriber and the winner is based on the value of one particular column.
Reading BOL gives me the input parameter list for the sp, and specifies that the output should be exactly the winning row. What is doesn't give is any example of how to do this, in particular how to access the two rows in conflict so that they can be compared.
I can do this by dynamically building SELECT statements, one connecting to the table locally on the publisher and another connecting to the subscriber using the form SERVER.DATABASE.OWNER.TABLE, but this requires me to explicitly have the subscriber as a linked server to do this. An example of my revolting code is appended to this post.
Is this what I have to do, or is there some table I can access on the publisher that has the conflicting rows in so I can compare them without going back to the subscriber?
Thanks for your help
Richard
---- code sample --
ALTER PROCEDURE [dbo].[prRep_ResolveInventoryConflicts]
@tableowner sysname, @tablename sysname, @rowguid uniqueidentifier,
@subscriber sysname, @subscriber_db sysname,
@log_conflict int OUTPUT, @conflict_message nvarchar(512) OUTPUT,
@destination_owner sysname
AS
BEGIN
DECLARE @qrySubscriber varchar(255)
DECLARE @qryPublisher varchar(255)
DECLARE @Publisher sysname
DECLARE @RecentCheck datetime
-- Temp table with same form as tbl_Inventory
CREATE TABLE #ConflictingRows (
[Machine] [sysname]NOT NULL,
[LocationID] [int] NOT NULL,
[PartGUID] [uniqueidentifier] NOT NULL,
[Qty] [int] NOT NULL ,
[LastUpdatedDtm] [datetime] NOT NULL,
[LastUpdatedUser] [varchar](50) NOT NULL ,
[rowguid] [uniqueidentifier] NOT NULL
)
-- Build the T-SQL To run against publisher and subscriber
SET @Publisher = @@Servername
SET @qryPublisher =
'INSERT INTO #ConflictingRows
SELECT '+@Publisher+' as Machine, * FROM '+@tableowner+'.'+@tablename+
'WHERE rowguid = '+CAST(@rowguid as varchar(40)) +';'
SET @qrySubscriber =
'INSERT INTO #ConflictingRows
SELECT '+@subscriber+ ' AS Machine, * FROM '+@subscriber+'.'+@subscriber_db+'.'+@tableowner+'.'+@tablename+
'WHERE rowguid = ' + CAST(@rowguid as varchar(40)) +';'
-- execute the stored procedures
EXECUTE @qryPublisher;
EXECUTE @qrySubscriber;
-- Compare the two rows and return the winning row, ie the one that was last updated by a human checking the inventory
SELECT @RecentCheck = MAX(LastUpdatedDtm) FROM #ConflictingRows
SELECT TOP 1 * FROM #ConflictingRows where LastUpdatedDtm=@RecentCheck;
-- Cleanup and exit
DROP TABLE #ConflictingRows
END
----
I have been evaluating merge replication, 'push' subscription on SQL Server 2014. If the default resolver is used (I refer to @article_resolver parameter of sp_addmergearticle), all seems to work as expected. However if I use "Microsoft SQL Server Subscriber Always Wins Conflict Resolver" (or any other MS standard resolver for that matter), if the Subscriber is on a different machine, the merge agent invariably gives the following error: "The process could not initialize <resolver_name>. Verify that the component is registered correctly."
This does not happen if the Subscriber is on the same machine as the Publisher and Distributor.
The problem seemed to exist in SQL Server 2008 according to some posts but it has been apparently fixed since then. I've tried the following:
- @partition_options = 0, as was suggested somewhere.
- Copied ssrpub.dll (the resolver dll) to the Subscriber machine (should not really matter as this is 'push' subscription?)
- Registered ssrpub.dll with regsvr32 on the Publisher/Distributor machine.
I've also run sp_enumcustomresolvers on the Publisher machine, and it happily showed all standard resolver, including the "Microsoft SQL Server Subscriber Always Wins Conflict Resolver".
Another thought is, I'm using SQL Server Express as the Subscriber (on the remote machine). Perhaps it does not support custom resolvers? (I'm using the full SQL Server in the 'local subscriber' variant, which does work OK as I mentioned before).
Note also that if I create a new publication via SSMS, the Resolver tab of the Article Properties dialog is empty, i.e. it does not list any resolver. The same tab contains the full list of resolvers though, if opened for an existing publication.
I am using SQL 2005 build 9.0.2227
I have a custom conflict resolver - which fires on update conflicts (using row level tracking)
I have had a couple of occasions when the resolver has failed with the following error:
"The schema of the custom Dataset object implemented in the business logic handler does not match the schema of the source Dataset object. Verify that the custom Dataset object has been correctly defined"
In both cases I found that the row for which a conflict was being handled was not a conflict at all. One was a straightforward non conflicting update at the publisher and the other was a similar update at the subscriber.
I got round the problem by temporarily using a fix version of the conflict resolver dll that either set the custom Dataset to the publisher dataset or the subscriber dataset - depending on where the update had occurred.
When the first error (publisher update) occurred - the resolver code was basing the custom dataset on the publisher dataset - which was presumably empty - so I changed the code to base the custom dataset on the subscriber dataset. The second error therefore occurred when the custom dataset was based on the subscriber dataset - which again was presumably empty
Note that the tables involved in each occasion were different and neither table is filtered.
Is there a known bug in this area?
I am considering trying to change the resolver code to identify false conflicts in order to workround the problem - but this would be difficult to test as I can't reproduce the problem
aero1
Hi all,
here is the context of our problem:
- Publisher : version SQL Server 2005 SP2, table in SQL Server 2000 (80) compatibility level, publication in SQL Server 2000 compatibility level
- Distributor : SQL Server 2005 SP2
- Subscriber : SQL Server 2000 SP4 + hotfixes (version 8.00.2187)
There is only one article in our publication (a simple table with a GUID and a nvarchar(50) columns), and we have left the default resolver.
1 - The first synchronization of the subscription is successfully completed, and it is the same for the different updates/inserts/deletes or conflicts.
2 - Then we change the Resolver of our article by our own COM-Based Custom Resolver (developped in C# 2.0). This resolver only change the default behaviour: the subscriber always win (this is for a test, in the future we will have a complex business logic). All the synchronizations works fine and do what we want in the conflicts.
3 - We rollback the resolver to the default one... and here is the problem!
The synchonizations stop to work correctly. For all of them we've got the same error:
quote:Replprov.dll , 2007/09/25 14:26:07.591, 4000, 16890, S1, ERROR: ErrNo = 0x80045017, ErrSrc = <null>, ErrType = 8, ErrStr = The schema script '
declare @cmd nvarchar(1000)
set @cmd='exec sys.sp_MSchangearticleresolver @article_resolver=@ar, @resolver_clsid=@rc, @artid=@ai, @resolver_info=@ri'
exec dbo.sp_executesql @cmd, N'@ar> nvarchar(255),@rc nvarchar(40),@ai uniqueidentifie..." mailto:N?@ar">N'@armailto:N'@ar">N'@ar</A< A>> nvarchar(255),@rc nvarchar(40),@ai uniqueidentifie...
It is no more possible to synchronize this subscription... Any remark will be helpfull cause we did not find anything on the net concerning this error.
Thanks a lot!
Hi there!
I'm trying to create a custom resolver for merge replication exactly like in the MS example.
It seems to work, but only ONE time. If I change, insert or delete a
record in a table the second time, the subscriber monitor comes with
the following errors:
Error messages:
Attempted to read or write protected memory. This is often an
indication that other memory is corrupt. (Source: MSSQL_REPL, Error
number: MSSQL_REPL-2147199411)
The Merge Agent encountered an error when executing code in the
'UpdateHandler' method implemented in the business logic handler
'D:Program FilesMicrosoft SQL Server90COMMyResolver.dll'. Ensure
that the overridden 'UpdateHandler' method has been properly
implemented in the business logic handler. (Source: MSSQL_REPL,
Error number: MSSQL_REPL-2147199411)
This last error is of course dependant on my action (update, delete, insert).
My code is -exactly- like the example (I just stripped out the log message).
Does anyone know why I am "trying to read or write protected memory" ?
The thing is that I'm trying to create an application that detects if a
table changes. Is this the right way to do this anyway or are there
better solutions?
Any help is appreciated! Thanks!
Hi,
I have created a custom resolver in VB .net (VS2005). The resolver works ( Both Publisher and Subscriber are SQL 2005 ), but I need to be able to debug the code within the resolver. How do I do this? I have tried a number of things without success.
Any suggestions would be appreciated.
Cheers
Neil
Hi
I (absolute beginner) configured a distribution on a publisher wich acts as its own distributor. I did it by right click on replication "configure distribution", followed all instructions and chose all default values. Nothing more. But now I want to view the distributor properties and following message appears:
TITEL: Distributor Properties
------------------------------
SQL Server is unable to complete the Distributor Properties.
ZUSÄTZLICHE INFORMATIONEN:
Ausnahme beim Ausführen einer Transact-SQL-Anweisung oder eines Transact-SQL-Batches. (Microsoft.SqlServer.ConnectionInfo)
------------------------------
Cannot resolve the collation conflict between "Latin1_General_CI_AS" and "SQL_Latin1_General_CP1_CI_AS" in the equal to operation. (Microsoft SQL Server, Fehler: 468)
My collegue has no problems viewing these properties. We have both XP and SQLServer 2005 SP1. What is the reason for this error message? And how can I solve it?
regards,
Elke
Hi all,
here is the context of our problem:
- Publisher :
version SQL Server 2005 SP2
table in SQL Server 2000 (80) compatibility level
publication in SQL Server 2000 compatibility level
- Distributor : SQL Server 2005 SP2
- Subscriber : SQL Server 2000 SP4 + hotfixes (version 8.00.2187)
There is only one article in our publication (a simple table with a GUID and a nvarchar(50) columns), and we have left the default resolver.
1 - The first synchronization of the subscription is successfully completed, and it is the same for the different updates/inserts/deletes or conflicts.
2 - Then we change the Resolver of our article by our own COM-Based Custom Resolver (developped in C# 2.0). This resolver only change the default behaviour: the subscriber always win (this is for a test, in the future we will have a complex business logic). All the synchronizations works fine and do what we want in the conflicts.
3 - We rollback the resolver to the default one... and here is the problem!
The synchonizations stop to work correctly. For all of them we've got the same error:
Code SnippetReplprov.dll , 2007/09/25 14:26:07.591, 4000, 16890, S1, ERROR: ErrNo = 0x80045017, ErrSrc = <null>, ErrType = 8, ErrStr = The schema script '
declare @cmd nvarchar(1000)
set @cmd='exec sys.sp_MSchangearticleresolver @article_resolver=@ar, @resolver_clsid=@rc, @artid=@ai, @resolver_info=@ri'
exec dbo.sp_executesql @cmd, N'@ar> nvarchar(255),@rc nvarchar(40),@ai uniqueidentifie..." mailto:N?@ar">N'@armailto:N'@ar">N'@ar</A< A>> nvarchar(255),@rc nvarchar(40),@ai uniqueidentifie...
It is no more possible to synchronize this subscription... Any remark will be helpfull cause we did not find anything on the net concerning this error.
Thanks a lot!
Hi all,
I
am doing a work were i have to syncronize data between a Publiser
(PC, SQL SERVER 2005), and a subscriber (Pocket PC, SQL CE MOBILE). I
studied lots of articles and i managed to put the syncronization to
work, the problem is in conflict resolution!
The subscriber can´t insert or delet, only update!!
For exmple: I have a table that contais the quantity of a product X,
for example 100 units, this goes to Pocket, but later arrive move 100
units that are increased in the PC, so we get 200 in the PC, (but 100
in Pocket), no problem if i syncronize now (Pocket will have 200 too),
but if remove in Pocket for example 50 units, i've changed the same
column in both Publisher and Subscriber database, if i syncronize now,
i'll have a conflict, the final result should be 150 of product X in
both databases (100 + 100 - 50), but the Publisher wins the conflict
and the final result is 200!
I never worked with stored procedures and in microsoft theres and article called How to: Implement a Stored Procedure-Based Custom Conflict Resolver for a Merge Article (Replication Transact-SQL Programming), but they dont explain it very well and i dont know how to do my own stored procedure and implement it to the merge article.
in my own stored procedure i'll have to do some calculations to get the
result i want, maybe using some table for the additions and
subtractions. (Does the com based Addition resolver do this for me???)
Maybe you have experienced some problem like this, and could help me!
How should i do the stored procedure?
Oh, i tried to use de addiction resolver and the average resolver
of com based but nothing happed, dont know why, i read some stuff and
i think the addition could solve my problem, but it doesn´t work, i read above what you said and installed service
pack 1 for sql 2005, but i instaled and nothing
happened!
When i change to the resolver that the subscriver wins, it works, why addition dont work?
Thanx
I have gone through BOL and various online resources including this one and I can't find any examples on how to use custom conflict resolvers to generate a result row which is a combination of the rows to be merged.
BOL says it can be done, but suitable examples are missing. I have found various posts requesting examples from up to a year ago, but can see no replies with relevant information
In particular I would like to see examples of
1) A stored procedure based custom conflict resolver
2) A business logic handler written in VB .Net
Here's hoping
aero1
I am new to SQL7 (in fact new to Database Management as well).
I am trying to write some store procedures to create and manage JOBs within SQL7 Server. For example, to cause data-migration to a different place everyday at certain time. I have tried to use things like sp_add_job. However, I kept getting messages like "Cannot find procedure sp_add_job" although I can see it under Master database. (I have been refering to Master database when I tried these commands).
What I would like to achieve at the end is to be able to specify and create JOBs entirely using Transac-SQL. (I have made it with the Enterprise manager, but that can not be the solution here. )Any help and tips would be greatly appreciated!
I am new to SQL7 (in fact new to Database Management as well).
I am trying to write some store procedures to create and manage JOBs within SQL7 Server. For example, to cause data-migration to a different place everyday at certain time. I have tried to use things like sp_add_job. However, I kept getting messages like "Cannot find procedure sp_add_job" although I can see it under Master database. (I have been refering to Master database when I tried these commands).
What I would like to achieve at the end is to be able to specify and create JOBs entirely using Transac-SQL. (I have made it with the Enterprise manager, but that can not be the solution here. )Any help and tips would be greatly appreciated!
Hello,
executing the first script listed below resulted in the error message (translation):
Message 7890, Level 16, Status 1, Line 1
Error when registrating Endpoint. Potential port conflict ...
use AdventureWorks;
go
CREATE ENDPOINT SQLEP_AWPersons
STATE = STARTED
AS HTTP
(
PATH = '/AWpersons',
AUTHENTICATION = (INTEGRATED),
PORTS = (CLEAR),
SITE = '*'
)
FOR SOAP
(
WEBMETHOD 'PersonInfo'
(NAME='AdventureWorks.dbo.uspGetPersonInfo'),
BATCHES = DISABLED,
WSDL = DEFAULT,
DATABASE = 'AdventureWorks',
NAMESPACE = 'http://Adventure-Works/Persons'
)
I changed the port in the script to 8084:
PORTS = (8084),
Error Message 102: Wrong Syntac near ')'.
I changed the port in the script to '8084':
Error Message 7888: The stated IPv6-Address is not supported. The server is potentially not configured for the IPv6 Connectivity or the address is not formated in an known IPv6-Format.
Could you help?
Best regards,
Wolfgang
creating a custom column that will put a list of 5 values for each unique value(or in this case Employee).
So I have a Employee table were I pull a list of all active employees -
Example -
024Swanson, Ronrswanson@tv.com
026Donaughy, Jackjdonaughy@tv.com
028Scott, Michaelsmichael@tv.com
What I want to do is add a column that has 5 values and create a row for each value
I want it too look like this -
024Swanson, Ronrswanson@tv.com a
024Swanson, Ronrswanson@tv.com b
024Swanson, Ronrswanson@tv.com c
024Swanson, Ronrswanson@tv.com d
024Swanson, Ronrswanson@tv.com e
[Code] ....
Currently all my query looks like is this -
SELECT EmpID, LastFirst, Email
FROM dbo.EmpList
WHERE (Active = 1)
Hello everyone!
Even though I am not "new to SQL Server", my experience in working with it has ebbed and flowed, and working with SQL Server is not something that happens for me even on a monthly basis.
I work as an in-house programmer for a financial investment company and I have been asked to work on a database that is to hold financial data.
One of the requirements for the tables has been that the Primary Key should be [name_of_the_table] + [Identity].
So, for example, for table "tblEquities", the values of the Primary Key would be:
PK
-------
tblEquities1
tblEquities2
tblEquities3
tblEquities4
tblEquities5
My questions are:
1) Is it possible to achieve this by using just one column, as in defining a formula for the "Computed Column Specification" , something that would look like "'tblEquities' + Identity()"?
2) If the above is not possible, I assume it's much easier to just define a column as being Identity column and then create a 2nd computed column that would aggregate the name of the table with the value in the Identity column, so that I end up with a column holding the desired values? (I guess it would look something like
"'tblEquities' + [Identity]")
Also, I have been asked to find out what SQL 2005 have/offers, in term of guaranteeing referential integrity. Are the "Database Diagram", as well as the "Relationships" dialog box, the tools that would meet that criteria or does SQL 2005 contain other tools that would help in this regard?
Thank you!
I have a package that is going to have roughly 20 sequence containers in it. Each of these containers is going to have the same start task and the same end task. The data flow task(s) in each sequence container will differ. So I was thinking I would create a custom sequence container that would implement the common steps I need in each of my containers. I started to create a task that would inherit from Sequence, but I found that it is sealed. Bummer.
What is involved in creating a sequence task by inheriting from Task? I see that Sequence implements IDtsSequence. But looking at this interface, it seems like I would have to build the logic to execute the workflow contained in my sequence.
Any pointers?
-Darrell
Hi folks, i need ur guidance.
I have a few DDL and DML scripts which i want to be automatically applied during MSDE setup; or an .MDF file be attached automatically. Please suggest an easier way!
Howdy!
I currently have a website which is using ASP.NET 2.0, C#, and SQLServer 2005. The website will be used to enter grants for auniversity. When a new grant is entered, I need to generate a primarykey. The primary key will need to follow the format: Two digit forfiscal year, then number of the grant for that year. Example:Year 08 and 14th grant of the year would be: 0814How can I implement this. Right now, I have a "New Grant.aspx" pagewith a Submit button. I am guessing the date is going to be formattedin C#. How can I check what the last primary key in the database is?Also, it seems to me that SQL Server insists that the primary key be32 bits long, however my primary key will only be 4. How can Ioverride this? Thanks.
View 3 Replies View RelatedI'm trying to create a custom data flow destination, and it has a custom property that needs to get value from variable(similar to the FileNameVariable property of Raw File Destination), how can I do that?
View 5 Replies View RelatedHello,
The main problem I am currently facing is that I do not have the following directory to place the DLL file: C:Program FilesMicrosoft SQL Server80ToolsReport Designer. It is the "Report Designer" part that is missing. I tried adding it, but that didn't work.
Any ideas why that is?
Thank you.
-Gumbatman
I would like to write a custom data source component for SSIS. I was wondering if there are any tutorials / examples for this that are available.
Thanks
Microsoft published a "Creating a custom transformation component Walkthrough" published on
http://www.microsoft.com/downloads/details.aspx?FamilyID=1c2a7dd2-3ec3-4641-9407-a5a337bea7d3&DisplayLang=en
Does anyone know where to get the Hands-On Lab Files mentioned?
Thanks
Alex
http://msdn2.microsoft.com/en-us/library/ms345276.aspx
does anyone know where this can be obtained? it did not come with the RTM. it does not seem to be available via download either?
a little help here!
Hi,
I have a 2 custom components - source and destination.
I want to create an error output for each, to allow the users of my component to handle errors the way they choose.
I only found a property in IDTSOuptut90 named isErrorOut - a boolean property indicating whether this output is an error output or not.
Does anyone have additional documentation / articles / code samples regarding how to really populate the rows in the error output?
Thanks