How To Changedefault Pool Size
Apr 17, 2008Dear All,
how can i change the default pool size???
Vinod
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Cannot Allocate More Connection.connect Pool Is At Maximum Increase Max Pool Size
Feb 21, 2007hi i'm having this error on my application"cannot allocate more connection.connect pool is at maximum increase max pool size" the proble is when i do testing this error does not apply it only Appears when the application is been used by many people
How can I resolve this?
Thanks
Timeout Expired. The Timeout Period Elapsed Prior To Obtaining A Connection From The Pool. This May Have Occurred Because All Pooled Connections Were In Use And Max Pool Size Was Reached.
Feb 11, 2004What does this error message imply?
View 3 Replies View RelatedMin Pool Size
Jul 20, 2005Hello Experts,I make a connection with .Net Sqlclient Data Provider tomy server and I adjust the min pool size = 0, but when Icheck the sysprocesses I see that 2 connections have beenmade. Why is that? am I missing something here?Conn. string"server=MYSERVER;user id=sa;database=MYDB;min poolsize=0;max pool size=10;packet size=3072;ApplicationName=MYAPP"Thanks in advanceMichas KonstantinosSQL Sewrver Developer, DBA*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
View 1 Replies View RelatedSQL Server Max Pool Size
Apr 30, 2004I have a site which provides online studying for students in a graduate program. Apparently their final was today because lastnight everybody was on. I know, however, that this is a small class, so no more than about 80 people could be on the site at one time. I still got SQL errors (emailed to me from Application_Error). I read on MSDN that by default connection pooling should be in place, with a pool size of 100... that would mean I wouldn't have this problem if only 80 students were on the site.
Why is this happening?
Below is my connection string from web.config.
<add key="connStr" value="Server=xxxxxx;Database=xxxx;UID=xxx;PWD=xxx;"></add>Error:
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
msdn link: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconconnectionpoolingforsqlservernetdataprovider.asp
How To Set Max Pool Size For Sql Server?
Jan 3, 2008When using connection string connect to sql server, there is a item max pool size.
The default is 100.
I set it to 500, but still get max pool size is reached and timeout error.
I checked my code and do open and close each connection each time using connection, so should have no memory leak.
What is the maximun value for max pool size? how to calc this size based on the memory used by SQL Server?
SQL 2012 :: How To Find Max Pool Size
Aug 10, 2015How to find max pool size in sql server 2012?
View 2 Replies View RelatedTimeout Expired...mas Pool Size Was Reached. I've Tried Everything.
Sep 26, 2007I am working on a large application built on the 1.1 framework in VS2003 (SQL Server 2000 DB) and keep getting this error:
'Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached'.
I can run the app in Debug 10 consecutive times, doing the exact same thing every time, and the error will occur at 10 different points, and 10 different calls to the data-access layer.
There is a data-access layer that is responsible for executing sql statements and stored procs. Every function in the data-access layer handles connections in the following way:
Try ' setup data adapter da.Fill(ds, "ResultSet") Return dsCatch ex As Exception ' send the exception back to the client Throw exFinally ' release objects da.Dispose() conn.Close() : conn.Dispose()End Try
I have read numerous posts about making sure not to leak connections. I have watched the connections within the SQL Activity Monitor and, at the most, there are 5 connections open at any given time. I use the default timeout and pool size values (30 sec. and 100 connections) in my connection strings. I am 99% positive that I am not leaking connections. Are there any other explanations for why this is happening?
Facing Problem In Increasing Connection String Pool Size Sqlserver
Mar 4, 2005Hi to all,
I am using a connection string like
data source=RemoteHostName;initial catalog=myDb;password=sa;user id=sa;
Max pool size = 200;
And now strange thing is happening ,, I am receiving error :
Timeout expired. The timeout period elapsed prior to obtaining a connection
from the pool. This may have occurred because all pooled connections were in
use and max pool size was reached
The SqlServer Activity Manager is telling that only 100 connections are pooled, and I guess that the Max pool size is 100, It is not being changed by my Connection string. As I am trying to change the default 100 pool size value to 200.
Huh , So stucked up , how to increase the Max pool size.. Is there any way .
I am getting worrried.
Any help ??
Thx and Regards
SQL Server 2008 :: Identify Size Of Data Cache Allocated From Buffer Pool
Oct 20, 2011How do i check the size of the datacache allocated from the buffer pool by sql server?
DMV or anything to show me the pool allocation sizes for the various pools in sql server i think i may be able to work from there.
SQL 2005 Resize Initial Log Size: MODIFY FILE Failed. Specified Size Is Less Than Current Size.
Sep 4, 2007
I am trying to resize a database initial log file from 500M to 2M. I€™m using€?
ALTER DATABASE <DBNAME> MODIFY FILE ( NAME = <DBLOGFILENAME, SIZE = 2 ) "
And I'm getting "MODIFY FILE failed. Specified size is less than current size." I tried going into the database properties and setting the log file to 2M, but it doesn€™t keep the changes.
Any help with this process?
The Use Of Pool Or Pooling?
Jul 13, 20061) What is the use of pooling actually?
I have an online application using SQL server, where I can check the connection pool from, SQL Server Enterprise Manager->Microsoft SQL Server->SQL Server Group->LOCAL->Management->Current Activity->Process Info.
2) In the connection pool, when I log into my system, a connection is made as I run query using stored procedure thus making the process available in the connection pool. Now when I am done and log out of the system, does the process suppose to stay there or not (the connection closed) and making it disappear from the pool?
I read from some forum that pooling is a good thing as it make accesing data faster.
SQL Pool Connections
Aug 22, 2006HiI have written the following function public System.Data.SqlClient.SqlDataReader ExcuteReader(string strQuery, string strConnection) { System.Data.SqlClient.SqlCommand myCommand; System.Data.SqlClient.SqlDataReader myReader; myCommand = new System.Data.SqlClient.SqlCommand(strQuery, new System.Data.SqlClient.SqlConnection(strConnection)); myCommand.Connection.Open(); myReader = myCommand.ExecuteReader(); return myReader; }to return a datareader for me but right now I am facing the problem that it seems this function isn't closing the connection by itself which is resulting in an error saying "Timeout expired. The timeout period elapsed prior to
obtaining a connection from the pool. This may have occurred because
all pooled connections were in use and max pool size was reached" and if I close it manually I will lose the data in the readerso are there any suggestions of what I should do?thank you
Connection From The Pool
Mar 14, 2007
I build an asp.net 2.0 (VS 2005) web application and put it on the server. The installed SQL server is SQL server 2003. I get this error message when i keep the application running for 10 or 15 mins. "Timeout expired. The timeout period elapsed prior obtaining a connection from the pool. This may have occure because all pooled connections were in use and max pool size was reached."
I made the server timeout unlimited but the error keeps coming up after some time of openning the application. The application session time out redirects the user to the login page and doesn't throw an error like the one i mentioned above.
Any idea. Thanks in advance.
Max Pool Connection
Jun 28, 2007hello to all
my problem is
when in database it reaches nearly 100 active connections (i check it from detach database) , my application does not allow me to open new browser page and show me error like:
time out expire. the max connection pool is reached.
please help.
Getting A Pool Timeout Error
Sep 8, 2007I have pages which are using a master page.
An example page on my site would be the homepage, it makes 3 connections to mssql.
1) Get the keywords of the page
2) Get a list of news articles
3) Get the content of the page.
When I visual web express to debug the site it's giving me a pool error message, neither can I get the site to load directly via IIS. It says theres been a pool timeout.
I've read on the internet about making sure connections are closed when you are finished and I've checked that all database connections are closed using
finally{conn.Close();}
does anyone have any idea why I would be having this problem?
How can I see what connections the site is opening, or maybe theres a limit on my server?
I'm using my own test server running windows 2003 and IIS
Change Connection Pool
Mar 31, 2004how can i change pool buffer of all connections?
I receive this error for each connection:
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
SQL Server: Connection Pool Low...
Apr 7, 2005Hi guys!
I have a dev server that has about 15-25 connections which is fine.
**
Looking at performance counters: _global_
under SqlClient: Current # connection pools
under SqlClient: Current # pooled connections
under SqlClient: Current # pooled and nonpooled connections
**
BUT when I look at staging and production I have only 4 or so...
WHAT'S GOING ON?!?! The querystring doesn't specify the max pool
size, pooling, nor timeout values. So I'm guessing it uses the
defaults. ( I also tried putting in max pool size, but it didn't
change anything! )
Does anyone know how I can increase the value? It is impacting the performance of the site considerably. Thank you!
Max Connections Pool Reached
Nov 24, 2005Hi,Can anyone tell me if he ever got this issue and how he get the solution. In my asp.net 2.0 application i close always ma connexions to sqlserver in the finally clause (the open is in the try); I open 1 ou 2 connecxions per aspx page, i close them always (in the finally clause or at the bottum of the form). Sometimes, the application is down with the messageCan not open a new connexion, max pool size is reached !!!!I host my application on a remote server, i have no performance issues, only this great problem !!!i cant view the status of connexion on the sqlserver, so what can i do, or how shoud i develop my connection.thanks in advance to all of yuo who will help me.Imed.
View 1 Replies View RelatedFishing The DTS Knowledge Pool
Sep 24, 2007I am having a puzzling problem with a DTS package in SQL 2000 that uses a combination of "Execute Process Tasks" and "ActiveX Script Tasks." The issue occurs with one of (the second) the ActiveX Script Task. The script invokes a COM object that was written in C#. This COM object connects to the database and writes a record set and then calls a stored procedure.
When I run this step individually, everything works fine. When I run it as part of the package, the record set is being written but the stored procedure is not invoked (SQL Profile confirms this).
I haven't really begun a serious attempt to troubleshoot the problem, though I have played around with the Transactions and OLE DB properties of the DTS Package.
Any suggestions as to why the behavior might be different, or some straightforward tips on troubleshooting would be appreciated. I have access to the COM component source.
Connection Pool Needed?
Apr 12, 2007From what I understand, some database drivers provide automatic database pooling, in the sense that when an application closes a connection, it is not dropped until after a certain timeout. If the same, or another application, request a connection then the "pooled" one is returned.
What's the situation with C#, .NET Compact Edition and SQLce? Is it a performance hit to open and close a connection, or is some kind of automatic pooling in effect?
Thanks.
Martin
Timeout When Obtaining A Connection From The Pool
Oct 6, 2006Hi All,I'm having a bit of a problem with a c# program which creates and index file/table. The number of records I need to process is around 3500, the main loop. Each of thoes records I need to look at a 2 text fields and create an entry in an index table for each valid word found in thoes fields. I call a stored proc to save the key word. So this stored proc get called numerous time per record.What seems to be happening is proceese about 400 main rcords the errors out with the following error message: {"Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached." }Has anyone had a similar problem? if so any suggestions on how to fix, I've been looking at this problem and recoding for the last 4 days! I need some help! Using SQL Server 2000 & .net v1.1Thanks in advance Davej
View 1 Replies View RelatedWhere Connection Pool Reside In Momory?
Sep 26, 2007Hi All,
Where Connection pool reside, is in client side(in .net framwork) memory or at server(in sql server) momory or at both side it maintains pool information?
Best RegardsImran Zubair
Inconsistent Clearing Of Connection Pool
Jan 15, 2008I'm opening a large number of connections to a SQL server 2005 database using a SQL object based on the System.Data.SqlClient library. When I log out of the application, I call the ClearSQLConnectionPool method of the SQL object and this should clear the pool of these connections. This has worked in the past, but lately I have noticed some odd and very annoying behaviour.Very often I log out of the application and few, if any of the connections disappear. Just this morning I opened the application, logged out and all but one of the connections disappeared. Then I opened it again, logged out and none of the connections had gone. If I open the application again all of the past connections are still there plus the new ones.I know it works, its just very inconsistent. The problem may be with IIS, SQL or with library; I just can't tell which.Any ideas?Many thanks
View 1 Replies View RelatedSQL 2012 :: Backups And Buffer Pool
Jan 23, 2015I am sure I have seen in the past in a monitoring tool that PLE drops off to 0 whenever we do a backup. I was doing some reading around this however and found something that said backups use a different portion of memory external to the buffer pool (minmax settings).
Is this correct and how can I tell how much memory will be required for a backup?
Timeout / Obtaining A Connection From The Pool - Please Help!
Jul 20, 2005Dear GroupSorry for posting this here. I'm desperate for a solution to thisproblem and thought some of you might have come across it with .NETand SQL Server.Let's assume I've the following code:Private Sub Button4_Click(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles Button4.ClickDim sqlConnection As New System.Data.SqlClient.SqlConnectionsqlConnection.ConnectionString = "workstation id=THEINTREPIDFOX;packetsize=4096;user id=sa;data source=""(local)"";p" & _"ersist security info=False;initial catalog=TestDB"sqlConnection.Open()sqlConnection.Close()sqlConnection = NothingEnd SubWhen I click 100 times on the button the page finally times out with:Timeout expired. The timeout period elapsed prior to obtaining aconnection from the pool. This may have occurred because all pooledconnections were in use and max pool size was reached.Of course I could increase the max pool size but this isn't thesolution to this problem. I wonder what's wrong with my code?According to MSDN, if the connection is closed it's released back intothe pool. Also tried to dispose but nothing helps. It looks like thatit keeps connections and doesn't release them. I'm grateful for anyhints, ideas, suggestions on this problem as I'm very desperate tosolve this.Thanks very much for your time & efforts!Martin
View 5 Replies View RelatedProblem About Application Pool Identity
May 15, 2008Hi all,
If I want to install Reporting Service for SharePoint Integrated Mode. What is account that I choose to configuration?
Such as, SharePoint admin account or New Domain Account or New Local Accout.
Please, help me. Because I try to install Reporting service all the time, but I cannot still access ReportServer Virtual Directory.
Sometime error.
The report server has encountered a configuration error. See the report server log files for more information. (rsServerConfigurationError)
or
HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.
......
And I want to know about, what is authentication mode of ReportServer Virtual Directory?
Thank you very much again.
Tyring To Figure Out What's In The Buffer Pool
Apr 16, 2007Hi, I'm trying to chase down some bottlenecks, and am currently tyring to figure out what's actually in our data buffer pool.
We've recently upgraded to SQL Server 2005 (sp2a); there's 4GB memory on the box (an active/passive cluster) with the /3GB switch set. I'm working on the learning curve for
sys.dm_os_buffer_descriptors and sys.allocation_units [and boy I sure wish SSMS's query windows wouldn't "copy" in HTML]. Based on BOL and some poking around, I've come up with the following query to list pages used within a given database:
SELECT
count(*) cached_pages_count
,isnull(obj.name, '<unidentified object>') TableName
,obj.index_id
,ind.name
from sys.dm_os_buffer_descriptors bd
left outer join (select
object_name(object_id) name
,object_id
,index_id
,allocation_unit_id
from sys.allocation_units au
inner join sys.partitions p
on au.container_id = p.partition_id -- 2005 compatible, but maybe not in future versions
) obj
on bd.allocation_unit_id = obj.allocation_unit_id
left outer join sys.indexes ind
on ind.object_id = obj.object_id
and ind.index_id = obj.index_id
where bd.database_id = db_id()
group by obj.name, obj.object_id, obj.index_id, ind.name
order by cached_pages_count desc
This would appear to list how many pages are sitting in our buffer pool for which objects for the currently selected database. The thing is, for our "main" database, the vast majority of pages fall in that "unidentified" bucket -- their allocation_unit_ids are not in sys.allocation_units (or tempdb, I checked there just in case).
My question is: what are these pages? Where is this data coming from? Might these somehow be related with our execution/query cache, which appears to be larger than our data cache?
As may be obvious, this is all new to me, and any help would be greatly appreciated!
t
How Do You Solve POOL CONNECTIONS MAX OUT Problem On GoDaddy?
Mar 4, 2007Hello,
I'm hosting with GoDaddy and I receive this error:
Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
For sure the problem is "MAX POOL SIZE WAS REACHED". How do I solve this problem? Or how do I prevent this from happening in the future?
Now, I cannot open any of my pages on GoDaddy.
Any advice would be appreciated. Thank you.
SQL Server, Connection Pool And Connections Remaining.
Dec 19, 2003Hi
I have seen the threads already in here about connections and SQL Server but I too am having a connection pool problem.
I am explicitly making a connection, creating a command object, executing a datareader then closing the command and then disposing the connection. The connection just prior to the dispose is definately closed.
However when I do an sp_who in SQL Server the connection is still listed. I have a connection timeout of 30 seconds, so I am considering reducing this to 5 seconds but dont wish to. So therefore when a process is called repeatedly instead of using an existing connection in the pool, it thinks that this connection is still active and therefore creates a new connection. Because all of this is in an ascx, I cant code for one connection to stay open for all 30 instances of the control.
This is a problem because I am creating controls at run time and using page.databind and at that point, I exceed the connection pool and therefore the site crashes out to the "SQL Server Timeout" error.
Anyone else seen this?
Will Buffer Pool Extensions Have Benefit If Already On SSDs?
Sep 24, 2015I am reading about Buffer Pool Extensions, and how it stores data pages on media like an SSD, to speed up retrieval in future. Would this be useless if my mdf files are already on SSD media? At most, I envisage it meaning that instead of grabbing the data from the mdf, it would grab the data from the buffer pool extension drive, but if they are both on SSD's, I'm not sure of how much return I would see.
Has any user decided to use BPE when their data is already on SSD's, and have they noticed any improvement in these cases?
SQLServer 2005 - SP2 - Connection Pool Issues
Sep 5, 2007
Hi,
I have recently installed SP2 for SQLServer 2005 and started to have connection pool issues. I have tried to explicitly mention the pool settings in connection string and yet pooling doesn't seem to work. I have one more box with no service packs applied and is pooling is perfect!. Has any one experienced this??
Thank you,
Viswanath Ivatury
DB Engine :: Buffer Pool Extensions On Shared SSD
Oct 9, 2015Extending the buffer pool onto an SSD drive that is shared ? For instance, if we had a mirrored system drive(The C logical partition) on SSD's, can we use the remaining space on that mirrored partition to extend my SQL 2014 buffer pool ? I understand that in this scenario, there is some competition for the I/O throughput between SQL Server's extended buffer pool and the OS. We intend to have the pagefile on a different disk, other than this specific SSD.Â
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