We are working in a Merge replication environment where we have SQL Server 2005, 11 publications and 2 subscribers.We used to get lot of incidents from the Application owner for blockings, recently we faced a situation where the lead blocker is in sleeping state and the session was used by the merge agent.Checked the query that the session was running, it was sys.sp_MSenumgenerations90;1.
View 1 RepliesSetting up Transaction Replication in test environment. I am willing to bet that most of you take a production backup (if so, how, and using what?), restoring the database to your test environment, then running a snapshot to your subscriber and away you go.
But perhaps you take a backup of your publisher and subscriber, if so, how do you know there are no inconsistences because there were transactions sitting on the distributor?
What do you do if you have additional indexes on the subscriber for reporting, that are not on the publisher?
Here at work we are having issues with getting consistent databases set up with T Rep, missing rows, duplicate keys at subscriber etc. How to avoid these issues.
I have some problem about Merge Replication.i'm trying to merge Database A to Database B in local Server. So Database i want publisher contain this:
Because only Data in Table change therefore so i choosed it 100% Snapshot was generated after that ( Problem not a valid window user i already figured out )After that. I created Local Subscription in same Server ( Pull subscriptions and Subscription type: Client ),now problem is throw out."The schema script 'vwBuyADT_513.sch' could not be propagated to the subscriber."
I tried research so many time in Google but any information i found isn't useful for this problem.This problem still can ignore,Synchronization still running. But after 4-5 Hours running..This messages throw out: "The Publisher failed to allocate a new set of identity ranges for the subscription. This can occur when a Publisher or a republishing Subscriber has run out of identity ranges to allocate to its own Subscribers or when an identity column data type does not support an additional identity range allocation"
My question is:
Is there anyway solve 2 probem? :
1. "The schema script 'vwBuyADT_513.sch' could not be propagated to the subscriber."
2. "The Publisher failed to allocate a new set of identity ranges for the subscription. This can occur when a Publisher or a republishing Subscriber has run out of identity ranges to allocate to its own Subscribers or when an identity column data type does not support an additional identity range allocation"
We have a publisher sending data to two remote subscribers. Each of these sites is updating a different field in a particular table with its site name and the current date stamp. This data should then sync to each database to show how up to date the last data change was. This lets us keep an eye on whether sync is good or not.
The problem I've got is one subscriber isn't copying its row to the other servers anymore. It gets the row updates from the other sites in the same table but its own updates to this field aren't getting sent across. Nothing shows up in conflict manager for it and nor should it as no other subscriber should be updating this field. If I validate the subscription the field when then get synced but again no updates after the validation will transfer. The other problem which may be related or indicating another issue is the data transfer rate shown in replication monitor is less than 0.1 rows/sec. Reinitializing isn't an option.
I am trying out merge replication and using web synchronization.However, I am worried that I am missing something because the way it is set up, it strikes me as a bit too insecure.
According to the best practices and security articles on Technet, I am given to understand that:
The SQL Replication Listener (read: the application pool account that will be running the replisapi.dll) has to be the db_owner to both distribution and publisher and be on the PAL list. Windows authenication should be used. That means the merge agents wouldn't need to know the password for those logins.
The basic authenication can be used (with SSL) to authenicate into a Windows user account to then connect to the replisapi.dll.
Here's the rub - I assumed that all I needed was a basic no-rights user account to be then given the execute permission on the replisapi.dll & read permissions to kick off the process. When I browse to the replisapi.dll and authenicate using the no-rights user, I get the expected "SQL Server WebSync ISAPI" message. But when I then run the merge agent, it fails saying that login to the distribution failed for the no-rights user. If I use the application pool's account, then I am able to run merge agent successfully.
But that means I am now looking at storing the password to the application pool account on client. I might have had missed a crucial step to ensure that the logins to the distribution & publication databases are done using the application pool account, not the user authenticated via IIS basic authentication?
I was reading this:
"Adding an identity column to a published table is not supported, because it can result in non-convergence when the column is replicated to the Subscriber. The values in the identity column at the Publisher depend on the order in which the rows for the affected table are physically stored. The rows might be stored differently at the Subscriber; therefore the value for the identity column can be different for the same rows."
I don't understand...
If I create a table with an identity column and publish it. Can the values on the subscriber be different when the data is replicated?
Suppose I have a this table:
1 Name1
2 Name2
3 Name3
Column 1 is identity field and column 2 the name of employees.
If I publish this table , the data can be inserted on the subscriber .pe, with 2 name1 and 1 name3 and 1 name2?
What about if the identify fields is a primary key?
I have a database with enabling merge replication.
Then the problem is update query is taking more time.But when I disable the merge triggers then it'll update quickly.
There is an error in one of my merge publication. The error is,
The change for the row with article nickname 2336003 (test), rowguidcol {436456F0-F5AD-E411-80CF-5CF3FC1D2D76} could not be applied at the destination. Further information about the failure reason can be found in the conflict logging tables.
When i checked my tables I got following values in rowguid column
publication 436456F0-F5AD-E411-80CF-5CF3FC1D2D76
subscriptionD824D120-23AD-E411-80E3-00155D0E1001
conflict tables 689C6A61-5359-4BB5-BECD-B03F5F94D79A
I'm trying out a set up as following:
SQL Server 2008 standard as the publisher
SQL Server 2012 express as the subscriber
and I tend to use web synchronization; there is no domain trust.
After following the instructions at MSDN for configuring web synchronization, I have an error that I can't get past - after creating the initial snapshot on the publisher, I try to run replmerg.exe at the subscriber and I always get this error:
"The subscription to publication 'TestReplication' has expired or does not exist."
If I refresh the publisher's "Local Publications" and look within the "TestReplication", it does show that the subscriber is a known subscriber. Likewise, if I refresh subscriber's "Local Subscription", it has an entry for TestReplication publication.
I already verified that the user used by Replisapi.dll has the read permission to the snapshot folder, is a member of PAL, is db_owner of the publishing database and distribution database. I am using self-signed certificate for this test and I have already installed the certificate at the subscriber machine so that HTTPS is trusted. I can run diagnosis from subscriber so I know subscriber can reach and logs are being left at the publisher's IIS.
We have a table in an SQL Server 2012 database that stores tree-like structures. Simplified for the purpose of my question, it has the following format:
Id int identity,
ParentId int,
GroupId int
Each record of the table represents an object identified by Id. An object may or may not have a parent in the same table, such that object.ParentId = parentObject.Id. A root object has ParentId = NULL. There are multiple root objects, so the table in fact stores multiple trees. What’s important is that the tree depth is not fixed, i.e. theoretically there can be any number of ancestor generations for an object. GroupId is a property of a root object; in theory none of the children of a root object has to have GroupId <> NULL; it can be assumed that any child has the same GroupId value as its root object.
A sample table having two roots (one grandparent and one parent), one non-root parent/child and 4 child roots:
Id ParentId GroupId
----------------------------------------------------------
1 NULL 200 root grandparent
2 1 NULL non-root parent/child
3 2 NULL child
4 2 NULL child
5 NULL 300 root parent
6 5 NULL child
7 5 NULL child
The table is not normalised, i.e. there’s no separate {root_object : group} table. However I don’t think normalising the table would solve the problem.
Now the problem. We need to set up merge replication from the table above (Master table) to the table of the same format in another DB. We need to replicate only those rows of the Master table that have a certain fixed GroupId value, e.g. 200 in the example above. If we ensure that GroupId in all descendant objects of a root object has the same value in the table as the root object itself that would be trivial. The table would look like this:
Id ParentId GroupId
----------------------------------------------------------
1 NULL 200 root grandparent
2 1 200 non-root parent/child
3 2 200 child
4 2 200 child
5 NULL 300 root parent
6 5 300 child
7 5 300 child
And the filter would look like this:
WHERE GroupId = 200
However out of performance considerations, we would like to avoid if possible filling GroupId for the descendant objects, because as it must be clear from the above, GroupId for a descendant object is quite easily deducible via a stored procedure or UDF (just need to go up the tree until ParentId = NULL). The problem is, I don’t know how to achieve this in a merge replication filter: it would only allow WHERE conditions and joins. I’ve have not had much luck with joins for merge replication in general, but here we have more complex algorithm, because the number of tree levels can be different for every object. And merge replication would not allow using UDF…
How to resolve the data inconsistent errors in merge replication ?
View 0 Replies View Related
I have a production server log shipping to a secondary server every 30 minutes (both SQL 2000), which the second server is used for both a warm standby server and for reporting from users. Issue: the log shipping locks the DB so reporting can't be done until the load is finished, the load to the second set of databases has taken up to 15 minutes to finish allowing the users only 15 minutes to run reports, this is not acceptable. The server also needs to be used for DR.
I am looking for another solution, I can't use Transactional Log shipping as not all of the tables in the databases have a primary key identified. So, I am looking for a real-time or near real-time reporting server that is more available to running reports and a warm standby server for Disaster recovery. I am trying to figure out what SQL Server 2000 has to provide (or even 2005 or 2008?) or I am also looking at some third party software, but not sure what is the best for a reasonable price.
Any help is appreciated.
Thanks....JB
Hi
Can we do two way transactional replication in WAN environment user SQL SERVER 2005 STANDARD EDITION.
Regards,
Anand
Hi There
View 4 Replies View Related1) I have the Active/Passive cluster environment (using Microsoft cluster service).
2) SQL2000 is installed on the cluster (Virtual instance).
3) Virtual instance of SQL Server is used as Publisher in Transactional replication with updatable subscribers.
4) Subscribers are passing updates to subscriber using MSMQ
5) The problem is : after I establish replication , the Queue Agent fails with following error (“Failed to initiate search for MSMQs”)
Dear All,
is it ok to run index rebuild script on publisher and after that in subscriber? what are the steps i need to take to do this?
will it affect the replication? please help me here.
Arnav
Even you learn 1%, Learn it with 100% confidence.
We are running 2 SQL Server and both run in failover clustered Environment.
The Problem is now we need to Replicate a Database from one Virtual SQL Sever to the other.
The Second one (clusterd environment)is stroing their database localy while the First One (clustered environment)is storing database in a shared storage.
Note that Both Server are used for sperate purpose , but we now need to set replication on the Other Clustered Setup for Reporting Purpose.
Will it work if we configure replication from One SQL Server Clustered Setup to the Other Clstered Setup.
If yes, then please let me know how it can be done ?
Thanks
Good day,
Currently, i'm using SQL 2000 & having a replication database from district to HQ. Then, I need to remove a reference key from one of replicate table.
So, what I need to do & how to remove reference key? I wish someone here can help me out..
Beside, any impact might happen if remove reference key?
What is the main difference between snapshot and transactional and merge replication?
View 5 Replies View RelatedHi Friends
I have transactional replication,
The publisher DB contains table call Courser with timestamp column, this column values are unique for the publisher DB
The subscriber DB also contains same copy of data in publisher DB Course table, but the timestamp column values are different.
So my problem is how can I keep this two tables (Course) identically, (same timestamp column vales in both table)
NOTE: Publisher and Subscriber DB reside under two different SQL server instance
Thanks and regards
IndikaD (Virtusa cop SL)
I created transactional replication on a database and setup pull subscriptions on each subscriber to run at a scheduled time once a day. The scheduled start time on each subscriber can differ. The transaction log on the publishing database will eventually consume all possible disk space. Is it possible (and safe) to shrink or truncate the transaction log file for the publishing database before all the subscribers completed running its daily pull subscription? If not, how can I manage disk space for the transaction log on the publishing database and ensure all transaction are replicated to the subscriber?
Thanks in advance.
Hi all,
I know that adding a column using ALTER TABLE to add a column automatically allows SQLSERVER 2005 to replicate the schema changes to the subscribers, however, I would like to add a new column to an existing article that is being used for merge replication, however, I don't want this column to be replicated. Re-initialising the subscriptions is not a option. Help would be appreciated.
I am using SQLSERVER 2005 (SP1).
I've read lots about why you shouldn't normally shrink databases in posts such as this:
[URL]
But we have a situation where we are required to copy the live db to various non production environments for testing. Part of this process involves truncating a number of tables with masses of blob data. So we're freeing up quite a lot of space. The question is how to reclaim this? The database is peculiar in that it's got no clustered indexes so I can't rebuild indexes on another filegroup with drop to move and rebuild.
I've tried dbcc shrinkfile specifying a size. I've tried to shrink the file in increments. The problem is I'm just not getting much space released. I get maybe 2-3%. I suspect this is because we're dealing with heaps with some tables that have sparsely populated blob / image data.
Is there an alternative to shrinking? Should I recreate all the db objects in a new database? It doesn't matter if the process takes a while or if it has to be done manually.
I have a mobile device application using mobile sql 2005 replicating with sql 2000 in a x86 environment. This works fine!
I'm having issues getting this to work under Windows Server 2003 X64.
I've got all the components installed under the X64 environment including CLR 2.0 X64 and the mobile sql tools. the but when I run the Configure Web Synchronization Wizard I get the following error. SQL Server 2005 Mobile Edition Server Tools were not found on the IIS server. Run the SQL Server 2005 Mobile Edition Server Tools installer....
My question is: Were do I get the X64 version of these tools?
sqlce30setupen.msi
sql2Ken@P4.msi
The SQL environment is X86 as follows: SQL2000 SP4
Microsoft SQL Server 2000 - 8.00.2039 (Intel X86) May 3 2005 23:18:38 Copyright (c) 1988-2003 Microsoft Corporation Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
Any help would be much appreciated!
We have 4 Servers which have SQL SERVER 2012 and "AlwaysOn" have been enabled on all 4 servers:
Server1,Server2,Server3,Server4
Server1 is the Primary node and thr rest are secondaries. There is a Sync relation between Server1 and Server2 and also there is aSync relation between Server1 and Server3 & Server4.
Is it possible to setup log shipping from Server2 & Server3(secondaries) to two new servers?
I am try to put together options in regard to creating a test environment for our Dynamics NAV system. The environment will be mainly used to test new releases / changes ahead of applying them to production.The 2 options I am considering are…
1.Create a second Test instance on our Production SQL Server to host a test database
2.Purchase a set of SQL developer licences and having a totally separate server for our test environment.
My preference would be option 2. However I need to build a convincing case that this is the best way forward. I wondered if I could tap into the thoughts of the SQL Central community and see how other approach this.
Is it possible to export the environment variables for an SSIS 2012 project? And if so how is it achieved?
View 2 Replies View RelatedIs it possible to use registered servers feature in clustered environment and with different versions of Sql server like 2012 & 2014.
View 0 Replies View RelatedI do have the following Extended Event session on my Dev box;
CREATE EVENT SESSION [sp_showplan] ON SERVER
ADD EVENT sqlserver.query_post_execution_showplan(SET collect_database_name=(1)
ACTION(sqlserver.plan_handle)
WHERE ([package0].[equal_uint64]([object_type],(8272)) AND [sqlserver].[equal_i_sql_unicode_string]([object_name],N'MyStoreProcedure')))
ADD TARGET package0.event_file(SET filename=N'E:DBA_AuditSP_Exec.xel',metadatafile=N'E:DBA_AuditSP_Exec.xem')
WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=OFF)
GO
The idea is being able to capture the execution plan when the program invokes the store procedure, regardless of the database.
This works on my Dev box. When I manually trigger "MyStoreProcedure" from database A , the event is saved. The same thing happens when I do that from database B. Ok ... so far, so good.
So I went to the live production environment and setup my Extended Events session. But it's saving nothing. I was able to check that the store procedure was executed on several databases but my extended events session never grabbed the plan.
What could be the reason for this? Memory starvation maybe? Is there something I am doing wrong?
I know how to "Create and map a Server Environment" using management studio [URL] ......
Is it possible to create the environment in DTS (2012) and have that environment created on the target server?
I am working on bringing our disaster recovery site to be a live site. Currently we replicate to one of out servers (server B) with merge replication (from server A). Server A also does one way transactional replication form some table to several other servers including servers at the DR site.
This setup is not going to be fast enough for what we need so I am wondering if a table is receiving merge replication will the merge updates also replicate down the transaction path??
Example...
Server B update a row and merges to Server A. With this update them replicate (via transactional) to Server C??
thanks...
I have deployed a project with multiple packages to SSIS 2012 db. I am able to configure the project parameters fine. But, I am not able to replace the package variable values with the 'Environment' variables.
View 3 Replies View RelatedAny fix for the seemingly random sort order of the variables in the dropdown list when configuring parameters and connection managers in the SSISDB catalog?
I imported all of our connection strings into an environment (about 200 of them). They were inserted in alpha order and the ID values within the internal.environment_variables table shows them in order as well, by ID and by name.
When I run profiler and capture the command that retrieves them and run it in ssms they are in order but in the dropdown they seem random.
There are no values within any of the tables that accounts for the order they are in.
If a package has 5 connections you need to go through the unsorted list 5 times to find them.
Sometimes you get lucky and they are in the first 20 or so.
I know I can write a script, just wondering if there is a fix for the sorting.