IF database->; RAC database: estimate of the size of the SGA for each instance
Hello!
Let's say that there is a single instance with SGA 100 G size DB (assume this size is optimal for this database).
If this database is intended to be converted to a RAC database with 2 instances (suppose DB workload will be spread over multiple instances).
How to estimate the needs of SGA size for each instance in the RAC database?
It takes 50G + General cool CARS (say 15%) for each instance?
(Do not consider situation when one of the instances has failed, and all the charge redirects to an instance having survived)
I'd be grateful if someone has offered or provided useful references.
---
Kind regards
Kyrylo
As a general rule, I would size the SGA on new nodes to 120% of the SGA to single instance. Yes, this means that you will more than double the size of the SGA. You will need additional space to hold the load memory Cache Fusion. And the buffer Cache are possibly a little more space to store additional versions of blocks that seem to accompany the many implementations of CARS. Now, it's just a rule of thumb, so it has a high degree to be very wrong.
You'll want to consider two big things... (1) the service being used. Will you take advantage of the services to perform the partitioning application? If so, instances can see various workloads that can lead to requests for different resources. (2) you will support a kind of failover (TAF or manual failover) applications? If so, then the LMS must be sufficiently sized to support the additional workload.
See you soon,.
Brian
Tags: Database
Similar Questions
-
Formula to calculate the SGA for 12 c of OLTP database
Dear Experts,
What is the formula to calculate the SGA for an OLTP database application.
This will surely depends on several variables such as
(1) the maximum number of connections application would have
(2) growth of database
- users connected
- Server connections
- total number of connections
- connection memory
- OS/application memory
Thanks John.
Is below the formula makes no sense?
Why thank me when you don't know what I said:
You will not find a formula.
You formula has nothing to do with the numbers suggested for EBS, which could (only "might") be a reasonable starting point. You have not given any indication of how you arrive at these figures. You just apply that 80% of the RAM formula suggested by Mr. Faruq? If so, you might want to ask him how he justifies the algorithm.
One point, that you should study management PGA. Your formula assumes that all connected sessions required 30 MB of RAM, all the time. How can you come to this conclusion? On your development system, you can observe how PGA is necessary for the optimal performance of your queries. Then you can ask "how many sessions is actually running a query at the same time?", adds on the non-negotiable PGA by session and calculate the requirement on the PGA TOUR as a result. You should also think about what you call ""memory connection ' and what you call 'PGA Pool'. " These aren't words that I know.
-
Call a procedure only once for the last place of the trigger FOR EACH ROW
Hello world
I wonder if someone could help me in the execution of the trigger. My use case what follows:
-a trigger after each INSERT or UPDATE operation;
-use FOR EACH ROW algorithm for relaxation;
-collect certain values inserted/updated fields as: new.uuid and store in a set defined on the layer of the package;
-only for the last inserted/updated line call a procedure from the global collection with the values collected as a parameter;
Is it possible to be implemented for the type of the LINE FOR EACH of the trigger? Fact one: new identifier or trigger itself have special attributes such as COUNTY, SIZE to set a size of data inserted or changed to conditional logic? Is there another solution to possible workaround for thoughtful use cases.
Thank you
AndreyHi, Andrey,
I suggest you use 2 triggers:
(1) A FOR EACH ROW trigger, as you described, to collect relevant data and store it in a temporary table overall or variable poackage. Whenever the trigger is activated, it will overwrite all the data from the previous row.
(2) AFTER ( NOT FOR EACH ROW) trigger that calls the procedure by using the saved data. -
I do my job to the computer on a MAC book PRO. I want to create a document using Pages and then convert the document to PDF and send a group email. I want to send the PDF using the pdf for each receiver icon must click the icon to open the document. My problem is the document does not show the icon, but rather the document is already open. I spoke with 2 Apple. 'Experts' care and can help me. Can someone tell me what to do?
It's a question of how the recipients e-mail programs deal with attachments. Many e-mail programs will open all the files they can handle, including files jpg and PDF, by default, and if the recipient has not changed that there is nothing you can do about it. The only solution is to the compress first, then it will be delivered as an attachment, allowing the recipient to decompress and open it.
-
I solve problems reinstall B2G ZTE provider, but all the native application like phone, camera msg etc apperars with a generic icon without staining, it is the same for each of them.
some app have been updated, i.e. the market and in this case a correct icon appears, but others not update appears with a generic icon uncolored, customized with the name of the application text only.
my phone provider was movistar, the manufacturer was zte and the model is open from zte.
I need help to install the correct icons without having to completely reinstall the system if it were possible. Otherwise, the help is to know how to reinstall B2G correct icons
Hi Josefer,
I'm sorry to hear that you have problems with your Firefox OS. What are the instructions did you follow to Flash your device ZTE open? Did you receive errors in the process?
I would say the best way to solve this problem would be to reset your device.
Warning: Resetting your phone will remove all data stored on the device, including applications, data from the calendar, e-mail accounts and settings.
To reset the device, follow these instructions:
- Open the settings application.
- Press the button of device information.
- Press the button more than information.
- Press the Reset button.
- Press OK to continue or Cancel to cancel.
If the problem persists, you may need to reflash your device using the construction and the instructions available on the download page of ZTE:
In addition, please remember that the best place to find support for questions specific to the device is directly with the OEM, as they provide the device-specific builds.
We hope that this problem fixed the problem you had. Please report to us if this helped!
Thank you!
-Ralph
-
My Inbox to view the sender for each message and now it does not work... How do I get it back to where it was?
Right-click on the header at the top of the list of messages and select from the list of options.
-
priority of the Internet for each application
priority of the Internet/network for each application as between ie8, firefox and a download manager like utorrent, igetter, orbit downloader
Hi, Thibaut,.
There are some non-Microsoft programs, you can download from the Internet and use them to set the priority for each application.
Note: Using non-Microsoft program is at your own risk.
For more information on the definition of priority network, see the following article:
See How to change the binding order of the network in Windows XP cardsVisit our Microsoft answers feedback Forum and let us know what you think.
-
I don't see pictures (jpeg images) to the owner/documents without opening each file individually. I just see the same image of a mountain and the Lake for each file. When I look in windows XP, the JPEGs under 'my computer' and select 'film' or the 'miniature' I can see the image. Why can I not see the image using Vista?
I don't see pictures (jpeg images) to the owner/documents without opening each file individually. I just see the same image of a mountain and the Lake for each file. When I look in windows XP, the JPEGs under 'my computer' and select 'film' or the 'miniature' I can see the image. Why can I not see the image using Vista?
Start button > in the search box, type options records > press the Enter key > click on view tab > uncheck " always show icons, never thumbnails " > click OK for the benefits of others looking for answers, please mark as answer suggestion if it solves your problem.
-
Dear administrators,
I created the user but now I have a requirement for the granting of privileges to view all objects in the DB in the data base and discovers the DOF for each.
Any help please
Ritz
Thanks to advise all the
-
Where are the files in the tutorial for each tutorials?
Where can I find the files in the tutorial for each video tutorial under each Adobe application? I know that they exist. However, it is confusing to find.
Thank you.
Tutorials Adobe Creative cloud for students | Tutorials Adobe Creative Cloud
-
After purchasing the cloud creative and used for 2 months (for example), so I don't use it for 3 months. How is it? I don't have to pay the tariff for each month, or is it possible to only pay when I use it again? To resume: if I use it for 5 months a year, I have to pay for only those 5 or 12 months?
No, if you have a subscription according to the type of subscription, you will have to pay each month or year until that you cancel.
If you think you would use the apps for only three months, then you will not need three months, then our month to month plan would be best for you because it can be cancelled at any time it does not come with an annual contract for more information see the link below
Adobe - General conditions of subscription
Kind regards
Bani
-
PDFMaker, Options, create PDF/A-1 a in Word. Where can I change the setting so I did not check the box for each file, I create?
Win OS: Windows 7
Acrobat 9 Pro
Hello
You can do this to change the registry settings.
Go to run type Regedit to open it.
First make a backup of the registry.
Here is how do.
Go to HKEY_CURRENT_USER > software > Adobe > Acrobat > PDFMaker 9.0 > > Word > settings
You need to change the DWORD values & chain listed below.
Chain: JobOptions
Value: PDFA1b 2005 RGB
DWORD: PDFComplianceIndex
Value: 1
DWORD: PDFComplianceLevel
Value: 1
Close the registry editor
Thank you
Abhishek
-
Hi all
I have a requirement where I need to get all the records, for each record in double, I need to get a single column with null or 0.
create table a1
(
Identification number,
VARCHAR2 (100), the point
part varchar2 (100));
Insert into a1
values (1, 'ABC', 'A1');
Insert into a1
values (2, 'DEF', 'A2');
TABLE A
PART ITEM ID
1 ABC A1
1 ABC A1
1 ABC A1
DEF 2 A2
DEF 2 A2
3 DEF A2
O/P
PART ITEM ID
1 ABC A1
1 ABC 0
1 ABC 0
DEF 2 A2
2 DEF 0
3 DEF 0
Thanks in advance.
Thanks for your help FrankKalush...
This one will work.
WITH got_r_num AS
(
SELECT NVL (a1.id, a1.id) as id
NVL (a1.item, a1.item) AS element
NVL (a1.part, a1.part) IN the framework
a1.id AS a_id
ROW_NUMBER () OVER (PARTITION BY a1.id
ORDER BY NULL
) AS r_num
BY the a1
)
SELECT id
element
CASE
WHEN a_id IS NOT NULL
AND r_num = 1
THEN part
ELSE ' 0'
END in the framework
OF got_r_num
;
-
How to measure the time for each mapping?
I use oracle11g with OWB.
I have several mapping and each dimension tables to update the mapping.
I want to measure how long it takes to complete each mapping. What is the best way to find the total time for each mapping.
One way is, we can have POST MAPPING and PROCESS of MAPPING PRE. I can trigger the stored procedure to enter the start time and the end time of each match. On this basis, I can calculate the total time for each mapping. But I have 50 mapping. Now, I need to write 50 different stored procedure and open the POST-PROCESSING of the MAPPING and PROCESS OF MAPPING of the PRE for each mapping. It is complex.
Is there another way, we enter the total for each mapping of execution? Y at - it that no data in OWF_ MGR dictionary can help on this?
I would be grateful if someone can help me on this.He will remain forever unless you purge it explicitly.
See you soon
Katia -
How to count the records for each region day and conditional
Hello
I need to create a report where I list activities for a month and the number of specific Type for each days activities. something like below
Number of days in the month where Type = 'A' Count where Type = B
January 1, 2009 2 3
January 2, 2009 7 6
January 3, 2009 8 7
----
-----
January 31, 2009 4 6
I tried with the creation of conditional region for each row of table for every day, but it does not work. I use below for conditional region-
<? xdofx:If substr (to_date ('20': substr (Planned, 9, 2) |)) » -'|| substr (Planned, 1, 2). » -'|| (substr (Planned, 4, 2), 'MM-DD-YYYY'), 4, 2) = 01? > <? Planned? > <? end if? >
But it is not functional and do not know how to count records in the table for each date as well.
Can anyone help in it as soon as possible. I'm quite new to BI.
ThnksYou can mark it as resolved... :D
Kind regards
Colectionaru
Maybe you are looking for
-
After updating firefox, now a second search bar that appears below the find toolbar regularly every time as I start typing in there. He tells me that I'm looking with google (thanks, I wondered!) and the duplicate search input field, exactly as it ap
-
What happened one day after I told my new e-mail (eM Client) client that my listings at that time had been arrested. They are at the time of the Pacific. Maybe this has something to do with it? It's just a matter of resestting the clock on my taskbar
-
I'm not a part of 550 d-108 NB. PLL5FE-00201EHU, who has started having problems, when you plug headphones into the headphone jack. Twice, we have received a Blue screen of death, by, and now the screen remains black, when we try to start. When tryin
-
Get the 1097 error when trying to call a Labview DLL
I had to write a wrapper DLL to use some functions in the DLL to a third party, and I'm having a few problems. I created an executable to test my code and it works fine, but when I try to execute the same function in the DLL that I created in Labview
-
Hello I am using the following fuctions draw a graph in visual studio using the labview includes libs: InitCVIRTE(); NewPanel(); NewCtrl(); DisplayPanel(); SetAxisScalingMode(); PlotStripChart(); Can I change the size of the window to the background