SQL 2012 :: Data Collection And Daylight Saving Time

Oct 26, 2015

Last weekend many of our severs had a failed job "collection_set_3_upload". The error that occured is: "Violation of PRIMARY KEY constraint 'PK_ active_ sessions_ and_requests'. Cannot insert duplicate key in object 'snapshots.active_sessions_and_requests'. The duplicate key value is (2824333, 2015-10-25 02:54:49.7630000 +02:00, 1)."Last weekend we happened to go from summer time to winter time. i.e. the clock passed 02:00 - 3:00 two times during this night.

I.e. there is a bug in the Data Collector component that collects data for the Management Data Warehouse: it uses local time instead of UTC. I've created a Connect item to report it to Microsoft.URL...how do you get your process running again? the job will no longer run because it will every 5 minutes keep on trying to upload the conflicting data for the 2nd 2:00 - 3:00 period. I've only found one solution: get rid of all data collected but not yet uploaded.

You do this by stopping the Collection set (in SSMS go to Object Explorer -> <the server you want to fix> -> Management -> Data Collection -> System Data Collection Sets. Right click "Query Statistics" and select "Stop Data Collection Set").Then you delete the cached results from the sql server machine's harddisk. These cached results are in files located in a Temp folder on the sql machine itself, inside the AppData folder for the service account SQL Server Agent is running under. Usually it will be something like: c:Users<sql agent service account>AppDataLocalTemp.

Inside this folder delete all files that have 'QueryActivity' in their name. You'll loose all data collected since the start of wintertime, but at least your data collection process will work again.After this you can start the Collection set again by right clicking it and select "Start Data Collection Set". Every 5 minutes the data will be summarised and uploaded into your management data warehouse.

Posting Data Etiquette - Jeff Moden
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Daylight Saving Time (DST)

Mar 5, 2007

Hi,
How to prepare SQL Server 2005 and SQL Server 2000 for changes to daylight saving time in 2007?

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Daylight Saving Time Changes For US And Canada

Jan 12, 2007

I thought I would post this just in case you are not aware of the change of the Daylight Saving Time start and end dates in 2007. This is really an OS problem, not a SQL Server problem, but it could have a big impact on your applicaitons if you are not prepared. The first change is less that 2 months away, so it's not a bad time to give it some thought.


Here are some articles about preparing systems for the 2007 daylight savings time changes that you might find of interest.

Preparing for daylight saving time changes in 2007:
“Starting in the spring of 2007, daylight saving time (DST) start and end dates for the United States will transition to comply with the Energy Policy Act of 2005. DST dates in the United States will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November).

Microsoft will be producing an update for Microsoft products affected by the new United States daylight saving time transition dates. These updates will be released through a combination of channels including Microsoft Customer Support Services (CSS), hotfixes incorporated in Knowledge Base articles, Windows Update, Microsoft Update, Windows Server Update Services (WSUS), and the Microsoft Download Center.�
http://www.microsoft.com/windows/timezone/dst2007.mspx


How to configure daylight saving time for the United States in 2007:
http://support.microsoft.com/?kbid=914387


Daylight Saving Time in Canada:
The article in the link below indicates that all Canadian provinces except for Nunavut have decided to follow the US daylight savings changes in 2007. The article contains links to news articles with official announcements of the changes.
http://en.wikipedia.org/wiki/Time_in_Canada












CODO ERGO SUM

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Adjusting Time Zone And Daylight Saving In SQL

Aug 6, 2007

Hi,
I have this simple SQL query which SELECTs the fields according to the criteria in WHERE clause.  SELECT callingPartyNumber, originalCalledPartyNumber, finalCalledPartyNumber,
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dateadd(ss, (dateTimeDisconnect + (60 * 60 * -5))+3600, '01-01-1970 00:00:00') AS dateTimeDisconnect,
CONVERT(char(8), DATEADD(second, duration, '0:00:00'), 108) AS duration
FROM Calls
WHERE
(callingPartyNumber = ISNULL(@callingPartyNumber, callingPartyNumber)) AND
(originalCalledPartyNumber = ISNULL(@originalCalledPartyNumber, originalCalledPartyNumber)) AND
(finalCalledPartyNumber = ISNULL(@finalCalledPartyNumber, finalCalledPartyNumber)) AND
(duration >= @theDuration) AND
((datetimeConnect - 14400) >= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeConnect)), datetimeConnect)) AND
((dateTimeDisconnect - 14400) <= ISNULL(convert(bigint,
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Also, dateTimeConnect and dataTimeDisconnect fields save time in UTC seconds.
Now this application may be used by clients in different timezones. The application may be hosted on their server which would mean a different time zone. What would be the best way to make this time zone and daylight adjustment more dynamic instead of hardcoding the values.
 

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Dec 19, 2006

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Pranav

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Mar 30, 2014

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One time it was about 20MB/sec

After it was reseting and again 1MB/sec..

What I checked , External company which install SQL Server made one file for tempdb, next week or during breaktime(it will be possible), I would like make 8files next weekend work.

Now I saw that TempDB mdf was still increased, but using was just 8-10%

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Apr 17, 2014

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I did exactly as explained in this video [URL] .....

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Jun 3, 2014

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Jun 5, 2014

I have a two node SQL 2012 AlwaysOn HADR cluster (v11.0.3412) with 4 availability groups configured. The AG groups are set to synchronous mode and the secondary is not readable (we do not want the synchronous replica readable so we do not risk any reads causing contention so we maintain fast performance).

On the secondary we are getting a persistent failure with the Data Collector job called Collection_Set_3_Upload. The failure occurs within the second job step. That job step is executing the following command:

dcexec -u -s 3 -i "$(ESCAPE_DQUOTE(MACH))$(ESCAPE_DQUOTE(INST))"
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Log Job History (collection_set_3_upload) Step ID 2 Server CLUSTERNODE2
Job Name collection_set_3_upload
Step Name collection_set_3_upload_upload
Duration 00:00:07

[Code] ....

I know I can prevent this error message by enabling readable secondaries, but we do not want this.

I have tried stopping the data collection jobs and purging the cache directory but to no avail. It will succeed the first time then persistently fail again with the same message every time after that.

In addition, if I set the one failing AG group to readable secondary the job succeeds. So that means that 3/4 work fine, only this one is having an issue.

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Feb 22, 2006

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Thanks.

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Dec 27, 2006

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Thanks.
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May 30, 2014

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also in the log page of data collection i see so many errors with messages like this:

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Oct 26, 2006

This must've been convered before, but I can seem to find a solution to it. Daylight Savings Time is about to end in my area, at which time the clocks will go backwards from 1:59am to 1:00am.
I have scheduled jobs that run every minute, and I'm expecting that when the clock rolls back, they will stop running for the gained hour until the clock catches back up.
So, I need an automated way to correct this.

I was looking at the msdb..sysjobschedules table, at the next_run_time column. But it doesn't make much sense. That value will periodically update, but it is always a good bit behind the next run time reported in EM. And manually updating it seems to have no effect.
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I apologize ahead of time if this has been covered. I tried searching but found only the OS specific response to my question (http://www.microsoft.com/windows/timezone/dst2007.mspx).

With the coming changes to DST in 2007, is there -- or is there even a need to -- patch either SQL Server 2005 or 2000 to account for those changes?

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The following T-SQL code is run in a vb.net (2003) module.

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I now need to save this data to a table in SQL 2005 running on a 2003 server.

The table for saving the data has already been created and saving the data is actually an 'update ... set ... where' statement.

The statement is
For i as short = 1 to itemCount

sql_command = "Update [IO Log].[dbo].[IO Log] Set TagValue = " & itemValue(i) & " where TagName =' " & tagName(i)
sql_command.executeNonQuery
Next

The TagValue field datatype is decimal(18,6)
The itemValue(i) datatype is object / variant. The itemValue array contains 95% values of type Single and the rest are Integers.
The TagName datatype is varchar(50)
The tagName(i) datatype is string

When I run the loop (255 iterations) with the above query it takes 1500 mS.

If I force a conversion by changing the query to
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it takes 900 mS to execute for 255 iterations.


I tried one more variation
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which takes 1200 mS to execute for 255 iterations.

If I use the following code
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There seems to be a problem during implicit / explicit conversion of type object/variant to decimal.
I need to save the data received from the OPC (255 tags) in under 150 mS.

Could somebody help?



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Daylight Savings Time Error SQL SERVER 2000

Mar 20, 2007

Hi all.


After DST change (US/Canada), when I run any of my reports, I get this error:


"An internal error occurred on the report server. See the error log for more
details. (rsInternalError) Get Online Help
Specified argument was out of the range of valid values. Parameter name:
date "


Does anyone have or heard of a solution?


Thank you!

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Sample Table

USE [Testing]
GO
/****** Object: Table [dbo].[Testing] Script Date: 4/25/2014 11:08:18 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON

[Code] ....

It seems to work fine with one million records.

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Mar 26, 2004

Hello all,

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I attempted the following:


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Dec 13, 2007

Hi,

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Sep 20, 2005

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With best regards,

Yours sincerely,

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May 19, 2008

hi,

this is sanjeev,
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it is creating the new package with out any probelm. but when i opened the package and try to move the newly created exeute package task it is giving the following error.


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this is my code



{
Package pkg = new Package();
string str = (string)entry.Key;
pkg.Name = str;
alEntity = (ArrayList)entry.Value;

ConnectionManager conMgr;
Executable chPackage;
TaskHost executePackageTask;

Microsoft.SqlServer.Dts.Runtime.Application app = new Microsoft.SqlServer.Dts.Runtime.Application();



//string PackagePath = @"c:Genesis.dtsx";

//p = app.LoadPackage(PackagePath, null);
p = new Package();
p.LoadFromXML(parentPackageBody, null);


p.Name = str;

//Sequence seqContainer;

IDTSSequence seqContainer;
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seqContainer = ((Sequence)p.Executables[0]);

string packageLocation = @"Geneva Packages";
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foreach (string val in alEntity)
{
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executePackageTask = (TaskHost)chPackage;
executePackageTask.Name = "Load_" + val;
executePackageTask.Description = "Execute Package Task";


executePackageTask.Properties["Connection"].SetValue(executePackageTask, conMgr.Name);
executePackageTask.Properties["PackageName"].SetValue(executePackageTask, packageLocation + ddlApplication.SelectedItem.Text + @"" + executePackageTask.Name);



}
}


app.SaveToXml(Server.MapPath("../SynchronizeScript/Packages/" + ddlApplication.SelectedItem.Text + @"") + str + ".dtsx", p, null);
}






please let me know what is the wrong in my code.

thanks in advance.

regards
sanjeev bolllina
sanjay.bollina@gmail.com

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"Black Holes are proof SOMEBODY, SOMEWHERE really did have a particularly bad Y2K problem!"

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regrds
serge

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