Page Life Expectancy Issue
Mar 17, 2008
STUCK! I have a consistent PLE value of 0. The server has 8GB RAM, I/O-CPU counters under 30%, various DMV's results show the buffer and memory cache do not calculate up to it's AWE (32-bit) allocation 7.5GB, waits don't show any problems, no locks, no blocks.
There are improvements to indexes that have to be made but where can I identify the root cause to the low PLE? The same process runs x6 quicker on 2 other much lower spec SQL servers exact copies from a data prospective, however there PLE is very high and not production.
Any ideas?
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Feb 28, 2006
In my MSSQL server 2000 sp4, in performanece monito, buffer memory, pagelife expectancy is equal to 0.00000 (average for 10 sec, auto update). Ithink sth is wrong configured, but what?Marek
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Feb 18, 2014
I started receiving these alert messages, and after doing some re-search still can't figure out how to totally resolve it. From what I gather the value Microsoft stipulates 300 for PLE is not accurate if you running a 64 bit OS and dependent of the amount of RAM you allocate to SQL.
If I allocate 20 Gig of RAM to SQL, The PLE should not drop below 1500 - (PLE should be 300 for every 4 GB of RAM) (20/4)*300
During the course of the day it sometimes drops below 1500, so my question is how can I further see why and what query is causing this to happen???
I setup a monitoring job as mentioned by Steve Hood to capture results for me every 20 min.
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Jan 16, 2008
Page Life Expectancy (PLE) is pretty bad on my server. PLE is hovering around 3 minutes "sometimes" but is usally around 20-30 seconds.
Total memory allocated to SQL ( a fixed amount ) is set at 3GB.
Of the total memory allocated, SQL Server is using 2.52GB ... so there is room if needed.
The Buffer Cache is sitting at 2.09GB with a hit rate around 99.8%.
The Procedure Cache is sitting at 378MB with a hit rate around 90.5%.
CPU is hovering around 10-20%
Free System Page Table Entries is LOW ... at 22343
Disc Queue Lengths spike quite often to above 5 and sometimes as high as 36. Usually sitting at .05 to 1.0 (and there are times when the DQLs are great and not measureable.
What I need to find out is how to get PLE above the recommended 5 minute mark???
Please let me know if there are any other items I need to note.
Thanks!
=========================================
Here are some hardware/Software/Implementation stats:
=========================================
SQL Server 2005 Standard w/ latest patch of 3152
Windows Sever 2003 R2 Standard w/ latest patches applied (says PAE is enabled in the System Properties.. General tab
4 Intel Xeon X5355 @266GHz
4GB RAM with 3GB dedicated to SQL Server via the /3GB switch
System Disc ( C: ) is 136GB (free space is 122GB) and is RAID10
Data/SQL Disc ( G: ) is 408GB (free space is 347GB) and is RAID10
The SQL files (MDFs/LDFs, TempDB, DB & TLog backups, SQL application and all that is SQL related) are all on the single array (G (** which I must note is NOT how I configured the SQL environment but aquired the setup when I started the position).
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May 27, 2015
I have few servers that are VM and different version of SQL Severs (2008 Express/Standard, 2012, or 2014 Enterprise) and seems all of them have same issue that when I am querying "sys.dm_os_performance_counters" for "[object_name] LIKE '%Buffer Manager%' AND [counter_name] = 'Page life expectancy'" I am getting very big number (Ex, above 100K or some servers 1M).Is this number seems fine or acceptable?Â
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Jun 9, 2015
Every day, at same hour, my SQL Server is showing error of PLE less than 300 seconds.
So after this, the server works properly.
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Aug 17, 2015
I'm getting an alert which states that both my Buffer Cache Hit Ratio and PLE are low on one of my SQL Servers though I'm not sure how to correctly check this.
I ran:
SELECT object_name, counter_name, cntr_value
FROM sys.dm_os_performance_counters
WHERE [object_name] LIKE '%Buffer Manager%'
AND [counter_name] = 'Buffer cache hit ratio'
Which gives me the Buffer Cache Hit Ratio, cntr_Value of 9 though its constantly dipping between 3-3000 and is never steady and I'm unsure if this is normal.
I also ran:
SELECT object_name, counter_name, cntr_value
FROM sys.dm_os_performance_counters
WHERE [object_name] LIKE '%Buffer Manager%'
AND [counter_name] = 'Page life expectancy'
Which gives me the Page life expectancy of 209061.
If these values would cause concern and if this is a normal Buffer Cache Hit Ratio? It's constantly dropping from high or low from what I can see. These scripts were pulled from another forum and I'm assuming they're showing the correct values.
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May 22, 2015
I measure PLE on my server and insert them every minute into a table. Now, when I look into the table I just dont know how to interpret the following data. I dont understand how is that possible. It's an sql server bug? or? How to interpret that data?Â
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Sep 12, 2014
Our server administrator forwarded some messages from SCOM that indicate:
SQL DB Engine 2012 Page Life Expectancy and Buffer Cache Hit Ratio is too low
When I logged into the offending server, I could not find anything in the SQL Log File that indicates this.
I was wondering how did SCOM identify this issue - where in SQL Server would this have been reported to SCOM?
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Dec 3, 2007
I am using SQL 2005. I have one very big database. The size of the DB is 1500986.88 MB and space available is 149359.48 MB. There are log files in this DB. The size of my log files are growing so big. The currently allocated space of one log file is 799874.50 MB and available free space is 38281.67 MB (4%). And the currently allocated space of another log file is 1500 MB and available free space for this log file is -760092.83 MB (-50672%)
I am not sure how come available free space for the 2nd log file becomes –ve. What does it mean? If I shrink log file, will I get any extra space? If not, what is the solution?
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Sep 14, 2007
My one VB Exe used to connect SQL 2000 using windows SQL Server Driver. But same exe is giving problem of SQL Connection Timed out error in SQL 2005 - SP1.
As this exe refers 5 tables from database and insert as well as update the data. Also client pc and server pc's ping test is around 30 to 40 ms.
Is there any way where we can increase timed out level at SQL 2005.
One more thing which i noticed in 2005. its really very heavy software. even my IBM Xeon_346 server 3GB Dual CPU, 3 GB RAM also not able to handle.
Thanks in Advance
Dino
Dina Satam
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Jul 3, 2007
Hi. I have a table called "Maxes" with three fields: Exercise_ID, weight, and date. This is for journaling my weightlifting progress. What I want my query to do is this:
Return just one record for each Exercise_ID, and only the one with the most recent date.
I tried this:
Code:
SELECT DISTINCT Maxes.Exercise_ID, Maxes.Date_Maxed, Maxes.[Max Weight]
FROM Maxes ORDER BY Maxes.Date_Maxed DESC;
but it doesn't quite work. Can someone show me how to do this?
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Nov 11, 2015
I have created one reports but all the records are displaying on one page.find a solution to display the records page by page. I created the same report without group so the records are displaying in page by page.
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Jan 2, 2007
I am trying to create a query that will show how much revenue that we have recieved from a customer After the first invoice and I'm having a difficult time creating a query to do it.. I have a customer table and a sales table joined by custno.
SELECT Customer.LastName, Sales.InvDate, Sales.AmtChargeFROM Customer INNER JOIN Sales ON Customer.CustNo = Sales.CustNo
The output I'd like is
CustNo, LastName, FirstInvoiceAmount, LifeCycleAmount
Getting the first inv date seems straight forward
SELECT Customer.CustNo, MIN(Sales.InvDate) AS FirstInv FROM Customer INNER JOIN Sales ON Customer.CustNo = Sales.CustNo GROUP BY Customer.CustNo
However getting the amount of that first inv and then getting the sum of all invoices not including the first invoice has me scratching my head.
Can anyone point me in the right direction?
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Aug 2, 2007
Hello,
This is my first foray into SQL Server and i am coming from an Oracle background.
We are currently looking to upgrade a COTS package from a third party supplier. I would like to know is there any end of life announcement for SQL Server 2000 ? Is there an End of Support date announced for SQL Server 2000 ?
In Oracle there is a product life cycle announcement screen, I would like to know if there is a similar page in SQL SERVER and where ?
thanks
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Dec 13, 2007
I am not very good in queries. Could you please suggest me some web site/Tutorial/Artical where i can get Study Material for complex and real life queries. I know the syntexes, I just need to practice queries to enhance my skills
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Apr 17, 2007
I have a c# application running on my machine. I want to point to a sql server data base express edition running on other machine. By default, from server explorer Ionly acces data base files of the local machine. I dont have acces to remote servers.
I used the file explorer and opened the mdf file on remote server. I tried to acces the mdf file remotely but i got excepcion.
My questios are:
- Is sql server 2005 express edition supporting remote connection to mdf data base file?
- In other words, I can remotelty conncect to mdf file from remote machine ?
So, I how can point my application to remote sql server 2005 express edition data base running on other machine?
Please, Help
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Nov 28, 2006
Hello I have a project that uses a large number of MS Data access pages created in Access 2003 and runs on MS SQL2005.
When I am on lets say my client, (first page in a series) data access page and I have completed the fields in the (DAP), I am directing my users to the next step of the registration process by means of a hyperlink to another Data access page in the same web but in a linked or sometimes different table.
I need to pass data entered /created on the first page to the next page and populate the next page with some data from the first page / table. (like staying on the client name and ID when i go to the next page)
I also need the first data access page to open and display a blank or new record. Not an existing record. I will also be looking to creata a drop down box as a record selector.
Any pointers in the right direction would be appreciated.
I am some what new to data access pages so a walk through would be nice but anything you got is welcome. Thanks Peter€¦
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Jan 16, 2008
I am out of brain cells. I can not figure out how to upgrade instances of sql express to sql 2005 or even add an instance of sql 2005. I have installed/upgraded everything else (SSMS, etc.) to SQL 2005.
I am dazed and confused. I don't even know where to start in explaining what I have tried and done. I have 303 log files going back to 3/27/2007 from various attempts.
Where do I start in figuring this debacle out???
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Oct 16, 2006
The following objects are placed on the Report body of the Report pane of SQL Server 2005 Reporting Services :
<textbox: expression1>
<textbox: expression2>
<table:table1 with at least 30 columns and 30 expressions>
<textbox: string1> - considered as the Title in the Footer section of the report
<texbox:string2> <textbox:expression3>
<textbox:string3> <textbox:expression4>
<textbox:string4> <textbox:expression5>
<textbox:expression6>
I can't find any explanation why is it string1 and string 2 of the footer section of my report displayed separately from the expression3 which is aligned on it and the rest of the object on the second page.
The expected design is that all Footer items should be displayed together of whether it is placed on the first page or on the last page.
As a workaround of this, I converted string 1 into an expression (Added = and enclosed the string with double quote).. As a result, all of the items in the Footer section are now placed together on the last page of the report.
I also remember one of the issue I encountered before where the Footer items where placed together on the first page and still have space at the bottom of the page, but then expression 6 is forced to display (alone) on the last page of my report.
I can't find any discussion related to this, I wish somebody could give me an idea why RS behaved like this.
Thanks in advance
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Feb 14, 2008
Fit an intere table in same page without page break for save the excel export.
My table has a Group for order my dates.
I need to have the intere table in the same page, i don't care about blank space at the end of the page.
I can't use the page break beacuse i need an excel export in a unique sheet..
I have tested.. every page break..you'll have a different sheet in your excel export
I need something like this
page 1
Zone
1
2
3
4
5
6
7
7
8
9
..
page 2
Zone
1
2
3
4
5
6
7
7
8
9
..
but an unique sheet in the excel export
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Jul 17, 2007
Hello,
If I have a report that includes a page header, the report viewer will render the report at the full width, but if I hide the page header and show only the body it will use the absolute width of the report.
I have a 7" wide report, with .75" borders set on each side.
Interactive & Print size are set to 8.5x11
Changing these sizes has no effect on the behavior of the viewer, which appears to ignore them.
When I view this report in the local viewer the contents fill the window if there is no page header.
If I enable the page header then the report is drawn at 8.5" wide, leaving a _big_ white border on the right side.
Any comments or workarounds that anyone knows? I know the local viewer is not a standard configuration (at least it seems) but it is what we need to use.Thanks,//Andrew
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Sep 21, 2006
Hi, I wanted to know that can we access a webpagefrom a store procedure in sql server 2000 like we run a exe file from sql server. Bye.
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Jul 20, 2007
Hi,
I issued this command on Tempdb but it doesnot shrink the file.
dbcc shrinkfile (tempdev_3,1)
go
Messages:
-----------------------------------------------------------------------------------------------------------
DBCC SHRINKFILE: Page 4:11283400 could not be moved because it is a work table page.
-----------------------------------------------------------------------------------------------------------------------------------------------
I have checked that there are no tables associated with any user in tempdb. Any help is appreciated.
Regards,
Razi
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Apr 16, 2007
How can I print a field that is in the dataset on each page? I added a textbox in the Page Header and use =Fields!ProjectName.value in the value property. I got an error "Fields cannot used in page header and footer."
How can I have the table header shows on each page? Currently if the data goes to the second page, there is no table header.
Thanks.
DanYeung
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May 26, 2008
Hi Team,
When i view the Report from SSRS Report preview Tab it's working fine, But when i deploy that and try to view in the IE
I am seeing the Body background color in between the image and page border of the page footer how to solve that?
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May 16, 2008
Hi All,
In my SSRS report. I have a report which has only one page. In preview it is showing as only 1 page but when I am printing the report. I am getting two printouts with the second page as a blank.. Please help me in printing the page that contains report. Intially I used a Page header, at that it used to print the blank page with a header only. Now as I removed the header it is printing the page without header i.e Blank Page.. So please help me in prinitng a single page that has the report. It is urgent,..
Thanks
dotnetdev1
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May 7, 2015
I have a report with multiple tables. I need to show each tables in different pages. When there is no data for tables/tables , it is coming with the next table which has data. I have given "Add a page break after" option in the tablix but still the tables are coming together when no data available. How can I show it in different page?
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Mar 12, 2015
I have a report with tablix. when tablix returns no rows Footer is coming all the way up . How to display the footer at the bottom of the page all time.
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Nov 11, 2015
How do I add a hard page break in the middle of a two page report? I use Microsoft reports for windows.
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Apr 15, 2008
In SRSS 2005 (SP2) my page header seems to take up the same amount of space on the
1st page it would take if it were to print; I have PRINT ON FIRST PAGE set to
false - the header doesn't print - it just leaves the same amount of space.
How do you get the report to ignore that. I do have a report header built
into the body of my report. I have tested this by increasing the size of my
page header and it does move the report up or down on the 1st page by that
amount.
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Jan 23, 2008
I'm hoping that someone can shed some light on this for me... I'm using SSRS SP2 and I have a basic report using a single list object which, at the moment, should print only two pages based on the results of the underlying query. When previewing the report, it shows the two pages. But when the report is printed or exported, there is a blank page before each report page.
What I've done so far:
1) Verified the properties of the list object and made sure that 'Insert a page break before this list' is not checked
2) Ensured that there are no hidden objects that could be causing this behavior
3) Ensured that the report size + margins are within the boudaries of an standard 8.5x11 paper size
Any suggestions on something that would solve this issue?
Sam
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Sep 28, 2015
I am running a DBCC SHRINKFILE on "FILE1" of a database (it has fileid = 1)...intent is to remove 70GB of file space:
DBCC SHRINKFILE (N'FILE1' , 400000).
For the SPID that's doing the shrink, In activity monitor you can see:
Waittype: PAGEIOLATCH_EX on resource: 9:3:15411328
(the DB is dbid=9)
But why does it need a page from fileid=3? Are there page dependencies between files that prevent moving a page within a given file? Does it need that fileid3 page to come along?
Its just sitting there in the SUSPENDED state for the last hour....I am going to leave it another 5 hours or so before cancelling.
The dm_exec_requests has an estimated percent complete at 83% and holding....not sure if I can believe that.
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