Service Dependency On SQL Server And Restart/Restore
Jun 26, 2007
I have a service that depends on SQL Server service. Basically we make sure that our service only starts after SQL server service started. Unfortunately this dependency does not ensure that database is available.
Basically I observed in Application log that SQL server reports that it started to listen on a port. And then I see that recovery process started. As I understand SQL server is not available while database is in the recovery state.
Note: I might have not used a correct terminology to describe SQL server recovery process as I don't have access to Application log with the exact message at the moment. I can verify the message if necessary.
Because SQL server service is started our service starts and attempts to connect to the database. Service fails to connect to database, because of the restoration process. Once restoration is done service connects successfully.
I observed that restoration process starts every time machine is rebooted. It only takes a few minutes to run, but it is enough to generate a number of error messages in event log about failed SQL connections.
My first question is: Is it normal for database to enter into recovery state every time machine is rebooted?
My second question is: If it is a normal operation, is there any way to detect that SQL server is truly available, so our code does not have to try retry establishing connection many times
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Jun 6, 2008
We were trying to restore our production server db backup in test server over LAN (due to space shortage on test server) . Test server hanged and did not respond for abt more than 15 hours (backup file 40 GB ) . The we restarted the server (resetting the power button) . Now it's showing the status 'Restoring' . According to me it's not doing anything (as seen in task manager workload ) . So how can I go ahead with checking the db .
Due to 'restoring' status I get following error
------------------------------------
Msg 927, Level 14, State 2, Line 1
Database 'envdb' cannot be opened. It is in the middle of a restore.
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Oct 19, 2004
Hi
We have been having a problem with on of our servers, applications connecting to it are experiencing poor performance, even though the server is only running at a peak of 50%.
The odd thing is that after a sql service restart we couldnt connect at all on the SQL port. We were only able to re-connect after rebooting the actuall box. Is there anything that can be done about this? Its strting to look like a network related problem instead of SQL
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Jan 27, 2015
I have got the error “a network related or instance specific error occurred sql server 2012 “.I have enabled tcp/ip, restarted the services. The sql server service is getting stopped even after the manual restart. I have checked in event viewer and I noticed a error. Here is the error...The log scan number (43:456:1) passed to log scan in database ‘model’ is not valid. This error may indicate data corruption or that the log file (.ldf) does not match the data file (.mdf). If this error occurred during replication, re-create the publication.
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Oct 22, 2015
I need to be able to restart an application service after the SQL Cluster fails over. how to accomplish this as a SQL job?
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Aug 20, 2015
we had activity last night we need to truncate Transactional Logs we pressed Restart button to initiate service , but it stopped successfully and failed to start the SQL Server service.We did not find anything find anything unusual in log file. Please confirm are we facing any bug or needing any fixes to installed on the server.Windows Server 2008 R2 Standard Service Pack 1 ( 64bit)
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Oct 6, 2006
Hi,
I'm having trouble with restoring the master db on w2k3 sql2000 sp3a to a Secondary Standby server.
Firstly, I place the server in Single user mode and then restore the master db. The sql server then tries to restart sql services but immediately stops as soon as it starts up.
Can anyone help ?? Please !
Thx, Steve
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Apr 29, 2015
After I have set the maximum sql server memory in sql server 2014 using sp_configure, do I need to reboot whole server or restart sql service?
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Feb 16, 2007
Hi everyone,
Can anyone let meknow how do i enable a service broker. I am trying to enable a service broker for an issuetracker application to get change of events in my database. When ever i try enabling it using the ALTER DATABASE [ databse] set Enable_Broker. it takes abt more that 2 hrs or more but doesnt show as enabled.
Thanks in Advance,
Pawan Venugopal
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Nov 17, 2006
Hi,
Our development team is building an application using .net framework 2.0 and sql server 2005 developer edition. They are using service broker and sql cache dependency classes in their code and we are running into a problem where the database used for their application is growing alarmingly in size, ends up using a log of memory and finally drags the machine. The database machine is a developer class machine used for development purpose only.
After we did our research we found the following:
1. the tables created by the team do not increase in size.
2. the system tables created by sql server for service broker and sql dependency grows very big during their usage.
sys.sysconvgroup
sys.sysdesend
sys.sysdercv
The above three tables have the same number of records and they are equal in size for eg, at one point they were 1.5 gb each amounting to total 5 gb out which the actual user created tables, indexes, sp amount to only 500 Mb.
There were some post in other forums that suggested to use triggers to close the open conversations and also use END CONVERSATIONS in the code. We have used that solution also but doesn't seem to solve the problem.
Is there a definite solution from microsoft for this issue.
Anybody has any insight to this. Thanks for your help in advance.
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Aug 7, 2007
Anyone know of a query that will cycle the SQL service?
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Feb 14, 2007
I have a problem that looks like it has not been discussed before inthese groups.I have a simple SQLAgent job that runs sp_who (could be anything, butlet's just say sp_who for this example). I have set the jobstep towrite to an output file "T:out.txt". If the job is owned by anadmin, it runs fine and writes the output file. If it is owned by anon-admin user, it gets the following error msg:Warning: cannot write logfile t:out.txt. Error 1059 : Circularservice dependency was specified. The step failed.I know about setting up the SQLAgent CMDExec proxy account, and havedone that. In fact, both SQLAgent and the SQLAgent cmdexec proxy usethe same domain account, which is in the administrator group of thelocal server. So, I know that security is not the issue.When a simple job runs and writes to an output file, what service orservice group could it be trying to start or modify? I looked throughthe list of Services, and could not find any circular dependencies.Is there a utility to detect this? Why would running under onecontext (as an admin) be ok while the other context (non-admin on SQL,but using the same admin domain service account) fails?Thanks in advance for any info you might have.
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Aug 10, 2015
When I re-boot the machine, if the sql server is set to "automatic", will the service re-start when re-booting the machine?
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May 17, 2006
I am having trouble with a linked server using MSDASQL. I'm connecting to a PostgreSQL database and pulling over data. This process has been working fine.
In trying to pull data from a different client database (same schema), I received an error that the MSDASQL couldn't read the column names.
The actual problem I want help on is that after this happens, I am no longer able to make valid connections to any of my Linked Servers using MSDASQL. The only way I can get my other linked servers to work again is to restart the SQL Service. Usually this is impossible for me to do because of the number of active users.
Two questions:
1) Is there another way to restart a more targeted service or sub-set to reset MSDASQL connections, and clear out my problem?
2) Any idea why I'm getting this error connecting to PostgreSQL on a large dataset when it worked fine for a small dataset using the same linked server? "The provider reported an unexpected catastrophic failure."
Any help is appreciated.
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Jan 9, 2007
Every so often I get an error when I pull up an ASP.NET 2.0 site using
SQL Express. It tells me that the login failed. If I go
into the server's administrative tools > services and restart SQL
Express and then refresh the site, it works just fine. Is this
some sort of bug or memory issue? Does the application need to
connect every so often or end up falling out somewhere?
Thanks
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Jun 9, 2015
I inherited a SQL 2012 Ent server sitting on a 2008R2 server using AlwaysOn High Availability, two nodes.
Available Mode: Synchronous commit
Failover Mode: Manual
Connection in Primary role: Allow all connections
Readable secondary: No
seesion timeout: 10
Somebody decided to give SQL server priority boost so I need to change this ASAP. So I plan on doing the following.
1. Manually fail over to the secondary, which does not have the priority boost set to true
2. change the setting
3. restart the service
4. Manually fail over
My question is with the service restart. How does SQL handle if the DB changes on the new primary while the secondary is having the service restarted. Where can I see if the DB are sync again or if not where are they in the sync process.
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Oct 15, 2007
A few service stop/start/restart questions on SQL Server 2005 SP2, whichI'll call SQLS.It looks as if there are *potentially* 6 ways to start/stop SQLSServices like the engine itself, integration services, reportingservice, Agent..-SQLS Configuration Manager-SQLS Surface Area Configuration (for Services and Connections)-Mgmt Studio Local (on server)-Mgmt Studio Remote (on client)-Windows Control Panel->Admin Tools->Services-Command Prompt (ala net start MSSQLSERVER)By policy, I am /not/ Administrator on the server. But I am SysAdminrole in SQLS. I have had various levels of success starting/stoppingservices in the ways listed above. In some I get Access denied, and inothers I get no msg and it simply doesn't work.Is there some special non-Admin OS group I need to be in to start/stopservices? Is this handled differently in the different interfaceslisted above?It seems like my best success for starting/stopping the engine and Agentis in /local/ Mgmt Studio, but /not/ remote Mgmt Studio - the optionsare greyed out on a remote client. Is this by design? Is it a SQLSbug?I'm sure I'm not the only SQLS DBA who does not have Admin rights on hisserver who wants to start/stop services. Generally speaking, how isthis intended to work?Any help appreciated.Allen JantzenA freshly minted DQLS DBA
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Apr 20, 2006
I have a problem that has happened a couple of times now. I'm in the process of testing our 2005 deployment - Standard edition on 2003 x64 servers for principal and mirror and 2005 express witness. All are pre SP1. Two databases are being mirrored.
I have successfully set up mirroring which seems to work fine - but when I restart the MSSQL service on the principal, spurious things happen:
The server that *was* the principal before restart
database A is in (Mirror, Disconnected / In Recovery) state
database B is in (In Recovery)
The server that *was* the mirror:
database A is in (Principal, Disconnected)
database B is in (Principal, Disconnected)
I can connect to both servers via Studio Manager and when I try to go to the current principal database to stop mirroring, the Studio Manager hangs and becomes non-responsive.
Any ideas?
Thanks
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Sep 27, 2004
I got this system error log in the event viewer every time I start the SQL Server cluster resource:
The Microsoft Clustering Service failed restore a registry key for resource SQL Server when it was brought online. This error code was 2. Some changes may be lost.
Even though the SQL seems to be working fine now, I won't know if something drastic will happen later. :confused:
Searching the Internet for resolution, I saw this article. The Microsoft Knowledge Base Article - 307469 (http://support.microsoft.com/default.aspx?kbid=307469) requires using the Windows Server 2003 ClusterRecover utility to reset the server cluster check points.
I've not tried it because I don't know if this is the correct solution or if it will work or not.
Can I even solve the error without using the above utility? I also cannot afford to reinstall the clustering or SQL server. :mad:
Thanks in advance. :)
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Nov 15, 2007
Hi,I have over 200 stored procedures and they have dependencies on each other (not necessarily a cyclic dependency).Is there a way in SQL Server 2005 that I can disable a dependency check while I am executing a script that creates those stored procedures, and then re-enable it after?Thanks.
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May 30, 2008
I have implemented SQL cache dependency to invalidate cache whenever the result of the stored procedure gets changed. The stored procedure is written obeying all the notification rules.
Our problem:
As long as we are working on Local machine, Development server or Pre production server its working fine means the cache gets invalidated whenever there is any change in the result set. But the same implementation doesn’t work in Production. Cache does not get invalidated.
Difference in Production environment and other environment:
Production uses cluster SQL server, others use standard SQL server. Production has load balancing means application is deployed on 6 servers which hits same clustered SQL server. In application’s global.asax file i have Start dependency so I see 6 different notifications started in SQL server which is right. But whenever there is a change in result set the cache doesn’t get invalidated in any of the application.
My question is
Do we have to follow any different kind of implementation of SQL cache dependency for web farm and cluster SQL server scenario?
On the same note I would like to add, on the same SQL server I have one more database and a different application is accessing this database. This application is also using SQL cache dependency and its working fine. The only thing this .Net application is NOT deployed on web farm. Its deployed on single application server.
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Jun 6, 2005
Probably a dumb question, but if one is using SQL Server 2000 instead of 'SQL Express' what has to change here, in order to set up caching? What changes in the paths?
http://beta.asp.net/guidedtour2/s22.aspx
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Jun 5, 2015
I want find all dependent objects related to a table. I am using -
SELECT DISTINCT so.name
INTO #tmp
FROM dbo.sysobjects so
JOIN dbo.SysComments sc
ON sc.id = so.id
WHERE sc.text LIKE '%tablename%'But, I want all those SP/functions/views that use the output of this query and so on...
Eg.
Table -> used in usp1 -> usp1 used in usp2 ...and so on
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Feb 15, 2008
I have a database that we have running service broker. Its a web based application hitting the database. Occasionally I need to restore the database in the development environment. Every time I trie to restore I have issues because there is a service broker connection. I have tried various commands to stop it, and usually after 20 minutes I finally get it to stop and not recreate itself.
Can anyone point me to an article or provide information on the best way to stop/prevent service broker so that you can restore a database?
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Apr 21, 2003
I am new to Analysis Services. Do I have to schedule backups for Analysis Services databases just like I do for SQL Server databases? or do I just need to backup the C:Program FilesMicrosoft analysis ServicesBinmsmdrep.mdb?? Please help. Thanks.
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Apr 21, 2003
I am new to Analysis Services, do I have schedule Analysis Service database backup job just like I do for SQL Server databases? Or I just need to backup the C:Program FilesMicrosoft Analysis ServciesBinmsmdrep.mdb file. Thanks in advance.
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May 25, 2006
I have an (as yet hypothetical) order entry system. Order data is entered into DB1 and processed in DB2. SSB is used to send the order (order header and detail) via a conversation group. DB1 goes down due to a HDD failure, and is restored from backup. What options do I have for re-processing order dialogs/conversations that were ended just before DB1 went down but do not exist in the restored version of the DB? Or lets say DB2 went down and was restored instead. Order dialogs that are not yet ended in DB2 may have already been ended before it went down, but now do not exist in DB2 after the restore.
Is there a way to restart the conversation from a certain point in time to recover order data that is out of sync due to the failure/restore? A similar scenario might be when restoring production dumps into a test environment; if the dumps are slightly out of sync I'd need to reprocess any messages that were not in sync then the dumps were created.
Thanks!
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Sep 13, 2004
how can I configure the SQL server to automatically restart selected services on a regular basis?
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Sep 27, 2000
Has anyone ever experienced the SQL Server unexpectedly rebooting?
Yesterday my SQL Server 7 installation rebooted itself and the error log seemed fine as did the restart. The only evidence I can find was a message in the event viewer's application log stating the the MSSQLServer service terminated unexpectedly. Any ideas are appreciated.
Thanks,
- D
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Apr 3, 2001
I've a SQL server that intermittently restarts itself mostly during. Its a SQL Server 6.5 SP4 running NT 4.0 SP6. It really has no rhyme or reason to it happening. The are no indications in either the SQL or the Nt events logs.
Has anyone heard of this?
Thanks inadvance
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Aug 21, 2006
Hi,
I have a linked server set up to a proprietarty temporal DB through an OLEDB provider. From time to time and for various reasons the OLEDB provider crashes with "Error 7302 Could not create an instance of OLE DB Provider 'IhOLEDBProvider.iHistorian.1'. OLE DB Trace [Non Interface Error: CoCreate of DSO for IhOLEDBProvider.iHistorian.1 returned 0x80070008"
Up till now, to re-initilize the connection we have just restarted the SQL Server service. However, some automated processes are now feeding data into this server and more users and have started coming online so restarting for this issue has become a big deal.
Getting the OLEDB provider sorted out isn't an option at present so my question is:
Is there a way to re-initalise a failed linked server other that restarting the SQL Service?
Thanks,
Eamon.
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Feb 18, 2004
Hi,
I have SQL server running on windows Adv Server 2000. Since last couple days whole computer restart every one hours. Only thing I remember doing was to shrink database db size is 200+GB.
How can I fix this problem.
Any help will be highly appreciated?
Thanks.
Samir
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