IO Requests Taking &> 15 Seconds To Complete (was Hi, I'm New, And I Need Help)
Nov 28, 2006
i have an aplication with any problems, the aplication is hang and in the log is
SQL Server has encountered 1 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [d:Program FilesMicrosoft SQL ServerMSSQLdata empdb.mdf] in database [tempdb] (2). The OS file handle is 0x000003DC. The offset of the latest long IO is: 0x00000016930000 and the aplication log is
E R R: [Microsoft][ODBC SQL Server Driver][Shared Memory]ConnectionWrite (WrapperWrite()). NUMERO -2147467259 FUENTE Microsoft OLE DB Provider for ODBC Drivers
can yu help me
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Sep 13, 2007
Hello,
I see the following error on the sql server log of one of our sql servers running sql 2000 with sp4.
SQL Server has encountered 1964 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [h: empdb.mdf] in database [tempdb] (2). The OS file handle is 0x00000534. The offset of the latest long IO is: 0x0000002b09e000
Any idea as to what might be causing this error. Appreciate any comments.
Thanks!
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Jan 26, 2007
I am not sure if I am in the correct location or if I should be in the SQL forum but here is my question:
I have an update statement that goes out through SQL 2000 through a local linked server to another SQL 2000 server on my machine. When I run the update in Query Analyzer it takes less than a second. When I run it in my C# code using the SqlCommand object and parameters it takes me ~23 seconds. If I remove one of the parameters it goes down to ~15 milliseconds. Has anyone heard of this happening?
The parameter that I remove is a simple char(10) column that isn't the primary key and is used in the WHERE statement. There isn't an index on the field.
23 Seconds
Update table Set column = @val WHERE field = @field AND other = @other
15 milliseconds
Update table Set column = @val WHERE field = 'values' AND other = @other
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Jun 15, 2015
We are running a SQL Server 2008R2 64-bit database system on a Windows 2012 R2 64-bit Standard system. I have noticed in recent weeks that our differential backups periodically are taking longer than expected to complete. The usual amount of time is about one hour, but on several occasions, it has taken upwards to five hours. The nights when the job takes longer to complete are on Friday.
I did some checking online, and one possible reason for this issue is my scheduling the reindexing of the database on the morning of the Differential backup. For example, this past Friday the reindexing occurred at 1:00 AM with the Differential running at 10:00 PM that night.The article that I read suggested the reindexing, which takes several minutes, if that, to complete, should be scheduled to run just before the Full backup job.
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Jul 23, 2005
Hi all.If I've got a query which has a field with seconds in it... how will I usethe Convert function to get my field converted to the format: HH:MM:SS ?The field with the seconds in is called: "Diff"Thanks alotRudi
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Sep 21, 2007
I have a Stored Procedure that has a query in it and it take 0 second and then a stored procedure that takes 16 seconds. From what I can tell they shoul be the same.
It doesn't recompile when i run the stored procedure, I checked that.
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Apr 5, 2006
Folks,
I have been hunting for a way to trace sql requests going to/from the sql express server (from VS.2005 using asp.net). I.E., I want to see the raw SQL commands that asp.net is generating.
Can anyone point me to a tool or article? Thanks,
--stuart
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Mar 27, 2008
Hi. I'm new to SQL Server programming. I'm using it at my new job for the first time and catching on quickly. I've run into a problem where I run a request via interactive query and it times out. It's really annoying because it seems to happy a lot. Is this just a memory issue with my machine (it has 2.8 GB of RAM) or there a way around it?
Thanks!
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Jul 23, 2005
I'm monitoring one of our servers, and on the whole it is performingwell. However, I'm puzzled by the number of LockRequests/sec thatPerfmon is recording. We frequently see values exceeding 50,000 andthe current peak is 533,616 (the average, as I type this, is 35,102).There are only 40 users on the system.sp_lock shows nothing like this number of locks; it shows somethingof the order of 30 locks maximum for each execution, which seems farmore reasonable.SQL Profiler seems to back up the Perfmon values; it records hundredsof "Lock Acquired" events per second during these peak periods.For example:NO. OFLOCKS OBJECT STARTTIME===== ====== ======================678User_T2005-04-15 09:03:22.863931User_T2005-04-15 09:03:22.877924User_T2005-04-15 09:03:22.89316EnquiryUser_T2005-04-15 09:03:22.893961User_T2005-04-15 09:03:22.910820User_T2005-04-15 09:03:22.9234NULL2005-04-15 09:03:22.923828User_T2005-04-15 09:03:22.9404NULL2005-04-15 09:03:22.940734User_T2005-04-15 09:03:22.957Can anyone think why such a comparatively small system should generatethese numbers of locks? Why does sp_lock NOT show the same level oflocking?
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Jun 21, 2005
May be it's too late, but I think this requests could be scheduled at least
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Mar 21, 2008
Hi:
one production server DB is getting slower... (SQL2K sp4 ent)
1. dbcc checkdb(abc) with 0 errors
2. no blocking
3. no abnormal in sql log and event system log
4. only found one crypt32 auto update fail last night.
the Lock Requests/sec is kind high from 5400 to 15400 on 0.01 scale. max is from 57611 to 155411.
Could I increase the locks assigned to sql and what is the best way for it?
thanks
david
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May 13, 2008
Hello,
You help is very much appreciated.
I have an Intranet environment that contains tens of apps that use a specific database.
I want to create an Intranet test environment (which will use a test database), by basically copying the existing Intranet environment to a new location.
* I cannot change the connection strings in the applications level since each app stores it differently (some store it in Web.Config, some hard coded, etc....).
Then, have a layer that sits between the Intranet Apps and SQL SERVER (or inside SQL SERVER itself), that will intercept the connections requests.
Once intercepted, the code will check if the connection request comes from Intranet Test environemnt, and if so, change the connection string on the fly to point to the test database.
The question:
Is there a way in SQL SERVER 2005, to intercept connections, and then, based on the application that requested the connection, modify the connection on the fly (so that if the calling app is from test_Intranet – intercept the connection and change it to point to a test database, otherwise leave the connection as it is (live database).
Thank you,
Roy
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Sep 5, 2006
To any Microsoft SSIS developers reading this forum, some requests:
1) do NOT allow a package to run if it has "package configurations" enabled and one or more XML files with configurations cannot be found;
2) update the properties window with the properties read from the "package configurations";
3) allow relative paths in the "package configurations" locations (relative to the package location)
Thank you :-)
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May 17, 2007
I have a scenario where we want something like a message bus. We can have multiple clients sending in events and would like a way to
i) persist those events
ii) Send out the notifications to the subcribers (this would be some C# services)
What is the best way to do this? I know that we can build something from scratch using WCF Publish-Subscribe. But i was interested in knowing if I can leverage SQL Service Broker to do the work.
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Feb 13, 2007
Hi,
One of my client want to shift his reporting to SSRS. He wants to submit his report requests to SSRS. He wants the report should run at the reporting server side (not on client system) and output should be exported to a folder on server.
I am some what successful in submitting the report requests using subscriptions. But I have no idea to retrieve the requests from SSRS with the execution status.
I have to display all submitted reprot requests with execution status (success or fail) in a data grid and user selects one report to see the out file. Where can I get this information?
And how can I create a subscription that runs immediatly after submission. (without any delay)?
Help me please!!!
Thanks in advance, Gouri Sankar
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Feb 2, 2007
Hello, I have a bit of a problem. Some of my pages has way to many database requests, some pages upto 70 requests,and the loading time can be all the way up to 12seconds because of the many requests. So i am trying to optimize it abit.What i want to know if how to send several ID's to the database and collect the result from all of the ID's, i have a stored procedure like this:
public DataTable User_GetUsernameTypeTwo(string strUsername){OpenDBCon();mCom.Parameters.Clear();mCom.CommandText = "Profile_GetUsernameTypeTwo";mCom.Parameters.Add(new SqlParameter("@UserName", SqlDbType.NVarChar, 20));mCom.Parameters["@UserName"].Value = strUsername;myAdap = new SqlDataAdapter();myTable = new DataTable();myAdap.SelectCommand = mCom;myAdap.Fill(myTable);CloseDBCon();return myTable;}
To this i send a username and in return i get info about the user that then is presented on the page. If i have a gridview on the page with 20 posts, then it needs to make 20 requests to this file in order to collect all the info for all the users. Then i have one just like the one above that collects the photos of all the users. So my first thought was that i merge these two together, witch works perfect, reduces the database calls by around 40%. Then i thought, perhaps can i get all the info from all the users in 1 request, to reduce the load on the database even more, my problem is: How can i rewrite the one above to accept lets say 50 usernames (1 username can max have 20characters), and return the info from all of them. Since i use a stored procedure i cant with ease use WHILE (username = xxx) AND (username = yyy) AND (username = ccc), then i would have to add 50 Parameters and add each username to a seperate parameter and then look if the parameter is null or if it contains a username. So i need to find another way to send the usernames, so the sqlserver can add them to the where clause, perhpas using IN?
This is the sql server store procedure (it works perfect, when its one user i am requesting info about), i am using FULL OUTER JOIN because ALL fields i request can be NULL:
ALTER PROCEDURE [dbo].[Profile_GetUserpopupInfo] -- Add the parameters for the stored procedure here@UserName nvarchar(20)ASBEGIN-- SET NOCOUNT ON added to prevent extra result sets from-- interfering with SELECT statements.SET NOCOUNT ON;SELECT settings_username.color, settings_username.pic1, settings_username.pic2, profile_profilephoto.imageurl, profile_profilephoto.alttext FROM settings_username FULL OUTER JOIN profile_profilephoto ON profile_profilephoto.username = settings_username.username AND (profile_profilephoto.approved = 1) WHERE (settings_username.username = @UserName)END
Anyone got any idea of how to send a bunch of usernames to this stored proc? (it must be efficient since there is alot of users)
Patrick
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Mar 30, 2007
We are experiencing a situation where the SRS (2000 SP2) report server will no longer render reports. In the log file, there are many instances of
w3wp!runningjobs!434!3/23/2007-10:12:57:: i INFO: Adding: 8 running jobs to the databasew3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:13:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsExpired; found expired requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsClientConnected; found orphaned requestw3wp!runningjobs!434!3/23/2007-10:14:57:: i INFO: RunningJobContext.IsExpired; found expired request
What could be causing this? The reports are making queries through an OLE DB provider. There are no scheduled jobs, and the load doesn't seem that heavy.
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Sep 29, 2005
I have an application that calculates a bunch of numbers and then inserts them into a table (or updates a record in the table if it exists). In my test environment it is issuing 100 insert or update requests to the server per second and it could run for several hours.After a the first several hundred requests, the SQL server is bogging down (processor at 90-100%) and the application slows down while it waits on SQL to update the database.What would be the best way to optimize this app? Would it help to loop through all my insert/update requests and then send them as one big batch of statements to the server (per 1000 requests or something)? Is there a better way of doing this?Thanks!
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Feb 14, 2006
Hello,
I have been working as Sybase DBA for 5+ years, and I would very much like to add MS SQL Server to my resume. Given the common roots of the two RDBMS, it seems that the learning curve would not be as sharp as if I were going to learn Oracle or DB2. Can anyone out there know of any books that are geared toward learning MS SQL Server from a Sybase DBAs perspective?
Thank you,
- Chris Merz
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Jun 5, 2007
Hi,
I want to know how to assign a normal user to take backup,Restore and attach and detach the database in sqlserver2000.
Please can anyone help me to find out which server role or database role will suites my requirements.
Regards
Md S.Hassan
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Jan 27, 2015
For Bulk Load requests in SQL server, Are there any specific profiler event? Like the one we have for RPC RPC:Starting and for Batch Requests, we have SQL:BatchStarting.
Are Bulk Load requests that are being monitored through Profiler captured as SQL:Batch... events at the backend?
Are there any new features added in 2012 or 2014 to identify a Bulk request submitted through bcp.exe utility or any other sqlbulkcopy program?
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Jul 31, 2013
Working on this issue ... SSIS package trying to load data from DB2 to SQL ....
IBM OLE DB Provider for DB2"
Hresult: 0x8004D01C
Description: " SQL1224N The database manager is not able to accept new requests, has terminated all requests in
progress, or has terminated the specified request because of an error or a forced interrupt. SQLSTATE=55032
SSIS Error Code DTS_E_PRIMEOUTPUTFAILED -
The PrimeOutput method on component "OLE DB Source" (1)
returned error code 0xC0202009. The component returned a failure code when the pipeline engine called PrimeOutput().
The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
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Oct 8, 2015
some times i need to take db in single user mode , which can be done using following
ALTER DATABASE xyz
SET SINGLE_USER WITH NO_WAIT
this has other options but each one has some problems like if any single window is open at any location etc etc.
Q1)so the need is i want to honor running transaction from msss or any application then i want db to get into single mode so that i can perform my task.
Q2) some times i need to restart db as it becomes slow , i am trying to find the reason primarily i have seen it is memory.so i want to restart my db honoring all requests.
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Jun 10, 2008
I am really confused and I can’t concentrate. Please help me with this easy question:
I have a field which contains seconds for example 128460 I need to have how much hours is that in my Query.
Please Help me.
Sep
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Mar 6, 2007
I'm using a stored procedure that outputs a field of duration in seconds... I'm limited in that I cannot edit the stored procedure to alter the output but I need to convert this duration to hh:mm:ss. Is there a way to do this using the expression editor in RS 2000?
Many thanks.
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Oct 15, 2007
I have created a local user on Report Server Computer and the user has the administrative rights.
When i try to connect Report Server (http://xxx.xxx.xxx.xxx/reportserver) with this user's credantials. (ReportServer directory security is set -only- to Basic Authentication. ).
I get the following error.
Reporting Services Error
--------------------------------------------------------------------------------
The number of requests for "XXXServerXXXUser" has exceeded the maximum number allowed for a single user.
--------------------------------------------------------------------------------
SQL Server Reporting Services
Then i try to login using a different user with administrative rights on the machine, i can logon successfully.
The system is up for a month but this problem occured today?!? What could be the problem?!?
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Nov 2, 2007
Hi,
I have an user input variable called @stop_time which takes input in the format of HH:MM:SS.
I need to convert it into seconds only.
declare @start_time datetime
set @start_time ='02:15:00'
How can I do that?
Can anyone help please?
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Sep 21, 2005
Hello every one I have a column in my table which stores seconds.
I want to convert the value into Days:Hours:Minutes:Secons(DD:HH:MM:SS) format.
Can anybody please tell me how to do that.
The value of seconds wil be large (eg. 16798563,..and so on) SO how to I convert this value to the format I need.
URGENT PLZ
Regards
Mohsin Iqbal
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Oct 6, 2006
Does anyone know if you can shedule a dts package to run every 10 seconds ?
I can see that you can create a job but this only has the option for the earliest run set to 1 minute.
Any advice
Ian
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Apr 16, 2004
I have a result that comes out in number of seconds, but need to see it converted to minutes and hours and seconds. Is there a convert function that would do this?
Thanks,
Dan
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Apr 28, 2008
How to Convert Seconds (i.e., 114) to hh:mm:ss format,
is there any way.. i've a column (DURATION) which is recorded in Seconds
AND USER wants to see the seconds in hh:mm:ss 00:14:28
pls.help
thanks
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Jun 19, 2008
Hi, I have a field with seconds in it, and I need to convert this so that it shows in the format hh:mm:ss. Is there an easy way to do this?
Thanks in advance,
Ben
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Jul 25, 2006
Hi,
i have a huge table.One of the columns of the table is fTime, which is datetime data type. But there is NO seconds in the fTime column. What i wanna do is to add seconds to this column according to the example below;
2006-07-24 18:10:00----> 2006-07-24 18:10:00
2006-07-24 18:10:00----> 2006-07-24 18:10:59
2006-07-25 10:20:00----> 2006-07-25 10:20:00
2006-07-25 10:20:00----> 2006-07-25 10:20:15
2006-07-25 10:20:00----> 2006-07-25 10:20:30
2006-07-25 10:20:00----> 2006-07-25 10:20:45
2006-07-25 10:20:00----> 2006-07-25 10:20:59
2006-07-25 12:00:00----> 2006-07-25 12:00:00
2006-07-25 12:00:00----> 2006-07-25 12:00:30
2006-07-25 12:00:00----> 2006-07-25 12:00:59
Shortly, as you can understand from above, the first second should be 00, the last second should be 59 and the rest will be calculated by, 60/count of same fTime rows - except the last row. There is one important thing to consider, which is the speed of the statements which include those calculations because of the huge number of rows i my table.
thanks
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