How to improve ODS archiving performance ?

Hello,
We are having a huge ODS with nearby 800 millions records. We are
planning to archive this ODS as soon as possible. We've begun to
archive the ODS month by month, but as you can imagine the write/delete
(SARA) process is very slow (full table scan).
We have done a test with 7 million records to delete :
It took us :
2 hours : SARA Write process (create archive files)
12 hours : SARA Delete process (execute delete program)
Our ODS contains 45 millions records per month, we can launch the archive jobs in our production environnement only during the week end.
It will take us months
to complete our archiving scenario.
How can we improve the archiving process ?
We don't really need the data that are beyond 18 months, is there a
better way to delete those data : selective deletion ?
Thank you in advance for your answers.
Business Information Warehouse 3.0B
Message was edited by:
ramos alexandro

Hi,
When you are running archiving process...queries might not run or will have bad performance...even a lock can happen...so..Just a idea,
As you said..you require only...Last 18 months data for Query..
So Create/make a new Shadow ODS ZSDO0002 ..should have similar Charateristics and KF.
Then make full Load from Your ODS(which you have to archive)..with selection in Infopackage for last 18 months only.
Make a INIT.
Then Latest Delta should come to this..ODS (ZSDO0002)...not to your old ODS.
Now, Copy the Queries from your old ODS to new OLD...with RSZC
Now archive your old ODS.
Regards,
San!
If helpful assign points

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Hi Shoba
There are lot of things to improve the query and loading performance.
please refer oss note :557870 : Frequently asked questions on query performance
also refer to
weblogs:
/people/prakash.darji/blog/2006/01/27/query-creation-checklist
/people/prakash.darji/blog/2006/01/26/query-optimization
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https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3f66ba90-0201-0010-ac8d-b61d8fd9abe9
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cccad390-0201-0010-5093-fd9ec8157802
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Query performance - bench marking
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How to improve slow PowerPivot performance when adding/modifying measures, calculated columns or Relationships?

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Darren,
I think the point I was making is its in memory, geez... BTW what do all applications do when they run out of paged memory, if PowerPivot is using all available memory then wouldn't this force the other applications to use Virtual or essentially write
back and forth to the disks? I think Virtual memory white to disk ??, lol Also, there are parts if the architecture of Excel 2013 that when importing data into PowerPivot require memory and when working in SharePoint the PowerPivot data is cached to disk
unless recently refreshed... But this conversation isn't help the James who asked the question and as much as I would love to continue its become a little boring..
Hi James,
If you download one the ODBC MySQL Connectors
http://dev.mysql.com/downloads/connector/odbc/ and I believe yours is the first one for x64 systems and connect directly to the data you should be able to reduce the number of workbooks your opening and if you notice in the following graphic these
connection are automatically refreshed by default, the parts in red are the differences between PowerPivot 2010 and 2013
You should notice a lot of improvement especially when refreshing data please let us know how it goes...
After registering the ODBC Driver
Click Add. on the User-DSN sheet, choose the “MySQL ODBC 5.x driver”, fill in the credentials, choose a database (from the select menu) and a data source name and you’re done.
Back in Excel you go on the PowerPivot section of the ribbon and open the PowerPivot window (the green icon on the left side). In the ‘Home’ section of that window you will see a small gray cylindrical symbol (the international
symbol for “database”) which will suggest to you different data sources to choose from. Take the one where it says “ODBC”.
In the next dialog you click on create, choose the adapter, and then Ok. Back in the assistant you can check the connection and proceed.
Now you have the choice between importing the data from tables using the import assistant or Query depends on your skillset..
Cheers,
Ivan
Ivan Sanders <a href="http://www.linkedin.com/in/iasanders">My LinkedIn </a> , <a href="http://msmvps.com/blogs/ivansanders">My Blog</a>, <a href="http://twitter.com/iasanders"> @iasanders</a>,
<a href="http://shop.oreilly.com/product/0790145372703.do">BI in SP2013</a>, <a href="http://sharepointdemobuilds.codeplex.com">SP2013 Content Packs</a>.

How to improve the query performance

ALTER PROCEDURE [SPNAME]
@Portfolio INT,
@Program INT,
@Project INT
AS
BEGIN
--DECLARE @StartDate DATETIME
--DECLARE @EndDate DATETIME
--SET @StartDate = '11/01/2013'
--SET @EndDate = '02/28/2014'
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL
DROP TABLE #Dates
IF OBJECT_ID('tempdb..#DailyTasks') IS NOT NULL
DROP TABLE #DailyTasks
CREATE TABLE #Dates(WorkDate DATE)
--CREATE INDEX IDX_Dates ON #Dates(WorkDate)
;WITH Dates AS
SELECT (@StartDate) DateValue
UNION ALL
SELECT DateValue + 1
FROM Dates
WHERE DateValue + 1 <= @EndDate
INSERT INTO #Dates
SELECT DateValue
FROM Dates D
LEFT JOIN tb_Holidays H
ON H.HolidayOn = D.DateValue
AND H.OfficeID = 2
WHERE DATEPART(dw,DateValue) NOT IN (1,7)
AND H.UID IS NULL
OPTION(MAXRECURSION 0)
SELECT TSK.TaskID,
TR.ResourceID,
WC.WorkDayCount,
(TSK.EstimateHrs/WC.WorkDayCount) EstimateHours,
D.WorkDate,
TSK.ProjectID,
RES.ResourceName
INTO #DailyTasks
FROM Tasks TSK
INNER JOIN TasksResource TR
ON TSK.TaskID = TR.TaskID
INNER JOIN tb_Resource RES
ON TR.ResourceID=RES.UID
OUTER APPLY (SELECT COUNT(*) WorkDayCount
FROM #Dates
WHERE WorkDate BETWEEN TSK.StartDate AND TSK.EndDate)WC
INNER JOIN #Dates D
ON WorkDate BETWEEN TSK.StartDate AND TSK.EndDate
-------WHERE TSK.ProjectID = @Project-----
SELECT D.ResourceID,
D.WorkDayCount,
SUM(D.EstimateHours/D.WorkDayCount) EstimateHours,
D.WorkDate,
T.TaskID,
D.ResourceName
FROM #DailyTasks D
OUTER APPLY (SELECT (SELECT CAST(TaskID AS VARCHAR(255))+ ','
FROM #DailyTasks DA
WHERE D.WorkDate = DA.WorkDate
AND D.ResourceID = DA.ResourceID
FOR XML PATH('')) AS TaskID) T
LEFT JOIN tb_Project PRJ
ON D.ProjectID=PRJ.UID
INNER JOIN tb_Program PR
ON PRJ.ProgramID=PR.UID
INNER JOIN tb_Portfolio PF
ON PR.PortfolioID=PF.UID
WHERE (@Portfolio = -1 or PF.UID = @Portfolio)
AND (@Program = -1 or PR.UID = @Program)
AND (@Project = -1 or PRJ.UID = @Project)
GROUP BY D.ResourceID,
D.WorkDate,
T.TaskID,
D.WorkDayCount,
D.ResourceName
HAVING SUM(D.EstimateHours/D.WorkDayCount) > 8
hi..
My SP is as above..
I connected this SP to dataset in SSRS report..as per my logic..Portfolio contains many Programs and Program contains many Projects.
When i selected the ALL value for parameters Program and Project..i'm unable to get output.
but when i select values for all 3 parameters i'm getting output. i took default values for paramters also.
so i commented the where condition in SP as shown above
--------where TSK.ProjectID=@Project-------------
now i'm getting output when selecting ALL value for parameters.
but here the issue is performance..it takes 10sec to retrieve for single project when i'm executing the sp.
how can i create index on temp table in this sp and how can i improve the query performance..
please help.
thanks in advance..
lucky

Didnt i provide you solution in other thread?
ALTER PROCEDURE [SPNAME]
@Portfolio INT,
@Program INT,
@Project INT
AS
BEGIN
--DECLARE @StartDate DATETIME
--DECLARE @EndDate DATETIME
--SET @StartDate = '11/01/2013'
--SET @EndDate = '02/28/2014'
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL
DROP TABLE #Dates
IF OBJECT_ID('tempdb..#DailyTasks') IS NOT NULL
DROP TABLE #DailyTasks
CREATE TABLE #Dates(WorkDate DATE)
--CREATE INDEX IDX_Dates ON #Dates(WorkDate)
;WITH Dates AS
SELECT (@StartDate) DateValue
UNION ALL
SELECT DateValue + 1
FROM Dates
WHERE DateValue + 1 <= @EndDate
INSERT INTO #Dates
SELECT DateValue
FROM Dates D
LEFT JOIN tb_Holidays H
ON H.HolidayOn = D.DateValue
AND H.OfficeID = 2
WHERE DATEPART(dw,DateValue) NOT IN (1,7)
AND H.UID IS NULL
OPTION(MAXRECURSION 0)
SELECT TSK.TaskID,
TR.ResourceID,
WC.WorkDayCount,
(TSK.EstimateHrs/WC.WorkDayCount) EstimateHours,
D.WorkDate,
TSK.ProjectID,
RES.ResourceName
INTO #DailyTasks
FROM Tasks TSK
INNER JOIN TasksResource TR
ON TSK.TaskID = TR.TaskID
INNER JOIN tb_Resource RES
ON TR.ResourceID=RES.UID
OUTER APPLY (SELECT COUNT(*) WorkDayCount
FROM #Dates
WHERE WorkDate BETWEEN TSK.StartDate AND TSK.EndDate)WC
INNER JOIN #Dates D
ON WorkDate BETWEEN TSK.StartDate AND TSK.EndDate
WHERE (TSK.ProjectID = @Project OR @Project = -1)
SELECT D.ResourceID,
D.WorkDayCount,
SUM(D.EstimateHours/D.WorkDayCount) EstimateHours,
D.WorkDate,
T.TaskID,
D.ResourceName
FROM #DailyTasks D
OUTER APPLY (SELECT (SELECT CAST(TaskID AS VARCHAR(255))+ ','
FROM #DailyTasks DA
WHERE D.WorkDate = DA.WorkDate
AND D.ResourceID = DA.ResourceID
FOR XML PATH('')) AS TaskID) T
LEFT JOIN tb_Project PRJ
ON D.ProjectID=PRJ.UID
INNER JOIN tb_Program PR
ON PRJ.ProgramID=PR.UID
INNER JOIN tb_Portfolio PF
ON PR.PortfolioID=PF.UID
WHERE (@Portfolio = -1 or PF.UID = @Portfolio)
AND (@Program = -1 or PR.UID = @Program)
AND (@Project = -1 or PRJ.UID = @Project)
GROUP BY D.ResourceID,
D.WorkDate,
T.TaskID,
D.WorkDayCount,
D.ResourceName
HAVING SUM(D.EstimateHours/D.WorkDayCount) > 8
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

How to improve the load performance

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Hi,
for all loads: improve your ABAP code in routines.
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- switch number range buffering on for initial loads
for transactional loads:
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hope this helps...
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How to improve the write performance of the database

Our application is a write intense application, maybe will write 2M/second data to the database, how to improve the performance of the database? We mainly write to 5 tables of the database.
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Your post says more by what is not provided than by what is provided. The following is the minimum list of information needed to even begin to help you.
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2. Storage solution (DAS, iSCSCI, SAN, NAS). Provide manufacturer and model.
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3      INSERT INTO t SELECT RPAD('X', 3999, 'X') FROM dual;
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5 END;
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How to Improve Report View performance

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Hi Larry,
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If you were to turn on a trace, you would see a number of lines like this:
2011/06/15 20:11:54.153|>=| | | 7676|7436|{|||||||||||||||C3_DPSerialization:ContextPromptList_StreamUnit_SerializeOut
2011/06/15 20:11:54.153|>=| | | 7676|7436|}|||||||||||||||C3_DPSerialization:ContextPromptList_StreamUnit_SerializeOut: 0
2011/06/15 20:11:54.153|>=| | | 7676|7436|{|||||||||||||||C3_DPSerialization:cdbSQLStreamUnit_SerializeOut
2011/06/15 20:11:54.168|>=| | | 7676|7436|}|||||||||||||||C3_DPSerialization:cdbSQLStreamUnit_SerializeOut: 0.015
2011/06/15 20:11:54.168|>=| | | 7676|7436|}|||||||||||||||C3_DPSerialization:QTDP_StreamUnit_SerializeOut: 0.015
2011/06/15 20:11:54.168|>=| | | 7676|7436|}|||||||||||||||C3_QTDataprovider:SaveMe_Serial: 0.015
2011/06/15 20:11:54.168|>=| | | 7676|7436|}|||||||||||||||C3_QTDataprovider:SaveAll_Serial: 0.015
The numbers at the end are how long the function took to run. Generally the function gives us an idea of what the engine was doing.
When evaluating performance issues, you can occasionally find a function that is taking long to run within the logs and based on the function and module names, it can sometime lead you to the reason it is taking longer than expected.
Another good test might be to run a very basic report to see how long it takes to come up. Even a report without a datasource would suffice as that will give you your baseline time on how long it takes to load the viewer, convert the WID file to XML and send it up through the application server to your browser. If a test report takes 15 seconds to view, then you are really only looking at 6 seconds for this other report.
Hope this helps and gets you started. More environment info would help take it further.
Thanks
Jb

How to improve and maintain performance of droid phones

ive read bits and pieces about how to make the phones faster and stuff but whats the best way of improving the phones performance without overclocking and putting on custom roms and maintaining that performance.

Biggest thing to do is keep the cache cleared out the applications. I recommend once a week check depending on usage.
Keep an eye on your internal storage. Any thing below 30mb needs some serious cleaning of applications, cache, call history, text messages, in that order. I try and keep my internal storage at 50 mb or higher.
Also try and pay attention to your Dialer Storage. It holds the call history and text messages. But it can grow quickly. I found out the hard way. Had some ringtones saved in the text message thread but rarely looked at them. Then one weekend almost six months after I got, I was looking at the thread a lot because a new message had been sent from that number. The dialer storage went from 5mb to 21mb in a couple of days. Even after deleting the entire thread it only went down 1mb. There was no way to clear data for that app so I ended up doing a factory reset. Now Dialer Storage is a baby size of 64 kb!
I never used a task killer only task managers.
I have a battery monitor and have seen no big difference. However I don't use facebook or twitter so I don't have those constantly updating.

How to Improve ASM IO Performance

How can I improve ASM IO Performance? Are there any parameters to do the same?
I am using 11.2.0.3 on Linux x86-64.

Hello;
There a paper on this here :
www.orafaq.com/papers/tuning_asm.pdf
You will have to judge how good it is.
Best Regards
mseberg

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Sometimes, too many services queue in Domain Gateway,
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the messages outbound to another domain
Scott Orshan <[email protected]> wrote:
Tuxedo 8.1 has improved Domain Gateway performance relative to 8.0.
Are the messages ones that are outbound to another domain, or inbound
from another domain?
zhangjr wrote:
Sometimes, too many services queue in Domain Gateway,
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How to improve Domain Gateway?

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