How Can You Find Active Connections To A Database So You Don't Have To Wait To Get A Failure When One Exists.
May 8, 2008
Is there a way to find active connection to a database so you don't have to wait for a restore or similar operation to fail. (Which take forever).?
Is there a SMO method or a transact SQL command or something that can be used in an application to detect active connections?
I don't want to have to wait forever to get a failure when you can't perform a operation that require that there be no active connection such detach a database. I want to be able to tell when I can perform a operation which requires no active connection and when I need to use a task without out dropping the connection like copying the schema using SMO methods.
However if there are no connection I can perform a detach copy and attach to create a new database which is considerable faster.
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Jun 12, 2006
How can I determine if everyone has logged off of the SQL Express database, ie, no one else is connected.
I need to clean up some files that are generated in my code, but I only want to do that when everyone has logged off the database?
In MS Access, I could try to re-open the MDB file exclusively.
Is there a connection number etc?
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Sep 26, 2007
I have a Microsoft Cluster running on Server 2003 Entrprise. SQL 2000 8.00.2039 (SP4). 5gb physical memory installed.
With the databases online we run a test failover from the Cluster administrator. It takes about 30-40 seconds and completes without generating any Server Event log errors nor SQL log errors. Everything looks good from an administrative stand point.
However, when we test with running a series of queries to the databases, then failover, we notice that it can take up to 3 or 4 minutes before some of the databases will respond. Connections are not refused, they just sit there.
How can we troubleshoot this or does anyone have a similiar experience with this scenario?
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Aug 30, 2006
We have (had) an active/active cluster. 2 physical machines,
each running their own instance, clustered together. Node1/Ins1 and Node2/Ins2.
Node2 failed and Ins2 failed over to Node1 as it should. Node2 required that we
rebuild the server (rebuild = reinstall O/S). Now we need to get Node2 back
into the cluster and get Ins2 failed back over to Node2.
Does anyone know, for certain, the correct steps to accomplish this? Obviously,
we could backup everything and completely destroy Ins2 and recreate it on Node2
then rejoin the cluster. But I'm looking for something less destructive.
Is it possible to reinstall SQL, then rejoin the cluster, and then fail Node2
over? Or will there be registry conflictions?
Any help would be appreciated. Also, if you have any links to some official
documentation, that would be great too.
Thanks
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Oct 25, 2000
Hello All,
Is there a procedure or function that will return only active, running connections on the server?
Thanks In Advance.
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Feb 21, 2007
Still getting my feet wet with sql 2005 tools, how can I see the active connections ? and can i drop the ones i select ?
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Sep 20, 2005
Hi.
I have to buy a license for MS SQL Server 2000 and I need to know how many active connections I will need.
I could try by running the application with multiple users and see how many connections there are.
The questions is: How can I know the number of active connections to the Server?
Thanks!
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Sep 27, 2005
Hi
We just installed SQL service pack 4. I am now finding that when doing a sp_who2 active, there are a lot of connections that are blocked by itself. The common factor is they all have a status of 'sleeping'. The strange thing is that even though it shows the connection is blocked, it is in fact not and will still return results. Below is a snapshot of a portion of what the sp_who2 active returns:
SPID Status Login HostName BlkBy DBName
53 sleeping sa TRACKER 53 dbABC
58 sleeping sa TRACKER 58 dbCDE
64 sleeping sa TRACKER 64 dbSTA
66 RUNNABLE User12 PC24 . master
70 sleeping User5 ANALYSIS 70 dbBML
74 sleeping sa TRACKER 74 dbCDE
76 sleeping sa TRACKER 76 dbPTS
83 sleeping User5 ANALYSIS 83 dbANA
86 DORMANT User11 CPTDB . NULL
Has anyone seen this? Is it related to the installation of service pack 4? (We have installed the services pack on many other SQL servers, but have not come accross this before.
Tx,
TessZA
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Jul 20, 2005
Greetings,I am seeking information related to this subject.BOL suggests backing up the active transaction log immediately after afailure, so that the backup can be used in a recovery scenario if necessary.This is the relevant text from BOL "Transaction Log Backup":----//The transaction log backup created at 8:00 P.M. contains transaction logrecords from 4:00 P.M. through 8:00 P.M., spanning the time when thedatabase backup was created at 6:00 P.M. The sequence of transaction logbackups is continuous from the initial database backup created at 8:00 A.M.to the last transaction log backup created at 8:00 P.M. The followingprocedures can be used to restore the database to its state at 10:00 P.M.(point of failure).Restore the database using the last database backup created.1.. Create a backup of the currently active transaction log.---// end of excerptIf the failure results in loss of the instance and/or the log's parent db,how would we back up that log? Even if we could, what confidence would wehave that the backed up log was not corrupted at failure time?Thanks,PSG
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Jan 23, 2002
Hi All
How to check number of active connections ?
I know two ways of doing it ..
1. run sp_who2
2. in Current Activity in Enterprise Manager ..
If what ever number I am seeing is the Active Number of Connections ..then
I am facing a problem here ..
In My serevr I have 75 Users licenses are configured for Per server option ..
Through a Java aplication when Developer tried to capture any SQL server Connection it says following error ..
Details :
[MERANT][SQLServer JDBC Driver][SQLServer]Login failed. The maximum simultaneous user count of 75 licenses for this 'Standard Edition' server has been exceeded. Additional licenses should be obtained and installed or you should upgrade to a full version.
If I see from Sp_who2 and Current Activity , I can see only 37 Connections ...?
Why is so .. If I am having 75 configured and 37 live in sp_who2 ..why I am getting that error message ?
Is there other way to see Actual Number of Connections made to server ?
Sujit Kandi
1 860 520 7454
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May 19, 2015
I am trying to find the list of active connections on SQL SERVER , more and more granular way ...like below , I know a way using active monitor or Profiler or some DMVs give me some list , but is there a way to find what is the server name ,instance name connectedc to it , who is the clinet connected to it , whats the application being used now?
what database it is connected to it ? what login being used to connect ? what table and column being used right now and what kind of DML or DDL are happeming ?
I want to create a report and find Dependancay evaluation so that we will re architech or re design the existing databases ...
ServerName InstanceName Client Application Database Login Table Column Select Insert Update Delete Truncate Alter
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Dec 9, 2014
we have roughly 22 people connected to one database. But after a while, their applications begin to drag due to in and out communication with the server. When i check the active connections on the sql server, some times i see 157 active connections, please how to i set a timeout or connection interval close, so as reduce the heavy load being put on the server. Or how can i automatically close connections when they get higher than 50 connections.
This settings should be sql server 2008 related.
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Jul 23, 2005
Hi,Where does Sql server store the most current active T-SQLstatements? Is there a system table or stored procedure(documented orundocumented)that will show you the active sql statements beingexecuted. For eg: in oracle you can query v$sql to see all the sqlstatements executed by each session.I know that you can use Enterprise manager, but was wondering if youcan run a query via query analyzer to look at it.Any help is appreciated.ThanksGeetha
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Sep 10, 2015
Due to a SQL 2014 cluster installation failure related to security while setting up the primary node, I had to remove the node and any related installation programs from the node and redo the installation again. However I am unable to use the machine name as the SQL network name during the instance configuration, I get the following:
Microsoft.SqlServer.Chainer.Infrastructure.InputSettingValidationException: The SQL Server failover cluster instance name "MachineName" already exists as a server on the network. Specify a different failover cluster instance name.I am still getting the same name since the node name "MachineName" is listed under the cluster name. I have used machine name as SQL network name without an issue. I do not have any existing SQL machine name in network using same machinename which I want to use for this installation.
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Aug 10, 1999
I need a snippet of code that will determine wether or not a table exists in a database...
thanx
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Nov 9, 2007
I'm following these instructions: http://technet.microsoft.com/en-us/library/ms156421.aspx
I run this restore letting it create the database. It works fine:
RESTORE DATABASE ReportServer
FROM DISK='\MYMACHINEe$BackupsReportingServicesReportServerData.bak'
WITH NORECOVERY,
MOVE 'ReportServer' TO
'G:DataReportServer.mdf',
MOVE 'ReportServer_log' TO
'J:LogsReportServer_Log.ldf';
GO
I run this command and get this result set, with the fileIDs in red.
Restore filelistonly from disk = '\MYMACHINEe$BackupsReportingServicesReportServerLog.bak'
ReportServer2005
d:Program FilesMicrosoft SQL ServerMSSQLdataReportServer2005.mdf D
PRIMARY 3407872 35184372080640 1 0 0 9A65122E-36B7-4D93-A0FB-F1A894641A09 0 0 0 512 1 NULL 62000000029300037 D49504CB-7E10-4BA3-B737-F2F9F2070F39 0 1
ReportServer2005_log
d:Program FilesMicrosoft SQL ServerMSSQLdataReportServer2005_log.LDF L NULL 3211264 2199023255552 2 0 0 0D6FE3C7-C5CC-49FB-A66C-43272EB47763 0 0 0 512 0 NULL 0 00000000-0000-0000-0000-000000000000 0 1
then I run this LOG restore:
RESTORE LOG ReportServer
FROM DISK='\MYMACHINEe$BackupsReportingServicesReportServerLog.bak'
WITH NORECOVERY, FILE=2,
MOVE 'ReportServer2005' TO
'G:DataReportServer.mdf',
MOVE 'ReportServer2005_log' TO
'J:LogsReportServer_Log.ldf';
GO
Msg 4038, Level 16, State 1, Line 1
Cannot find file ID 2 on device '\MYMACHINEe$BackupsReportingServicesReportServerLog.bak'.
Msg 3013, Level 16, State 1, Line 1
RESTORE LOG is terminating abnormally.
I see file ID 2 identifying the log file. I've never done a restore like this - using copy_only and backing the database and log into separate .bak files, so maybe I'm misunderstanding something here.
Thanks for any help
Sam
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Jul 12, 2007
i need to check that the column exist in the table if yes the update/insert value in the column else i need to add the new column like new browser name in the table.
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Jun 10, 2003
is there any way to find the number of sqlservers exists (count and name of server) in a network using sql statement or stored procedure
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Sep 9, 2015
I have textboxes that work as checkboxes on my form. I have a stored procedure that brings a set of values back. I need to see if the specific values are in the dataset. If so, I put an X in the textbox if that value is in the dataset. How do I do this? [URL] .....
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May 25, 2015
I have a table which has 2 columns and the data is like below
API_Number Group_Name
1234 Group A
3241 Group A
1234 Group B
4567 Group C
7896 Group D
3241 Group E
I wanted to find the API numbers which are repeating in different groups. In the output I want
API_Number Group_Name
1234 Group A,Group B
3241 Group A,Group E
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Aug 17, 2005
Is there a way you can find out how many conneections to a database there may be before running (for example) a restore procedure to warn that it wil fail?
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Feb 8, 2008
I am in the process of migrating SQL Server 2000 to SQL Server 2005. Moving one user database at a time to SQL Server 2005.
Is there anyway I can list the DTS packages referenced by each databases.
All our DTS packages are stored in the database. Will the query to system or meta database will help?
Thank you,
Gish Smith
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Mar 3, 2015
Is there anyway,can we find the list of servers by querying at active directory?
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Aug 9, 2000
I am using SQL 6.5 and I would like to know (using Isql/w)
the number of users connected to my server at any given time.
Thanks for your help in advance.
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Nov 18, 2015
I'm currently setting up a Tabular Model to do some research between several fact tables. In this example i have two fact tables (table 1 and table 2) which I've created a 1 to 1 relationship on phone number. Typically I create a relationship between these tables to find common data between the two. However, in this case I am trying to figure out the best way to model the data so that I can easily surface data from one table that does not exist in the other. I would liken this to a LEFT JOIN or a WHERE NOT EXISTS in SQL.
Table 1 has all of the data and Table 2 Only has a subset of the data from Table 1. What I'm trying to do here is display what attributes in Table 1 may play a part in records not existing in Table 2. What is the best way to model this?
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Aug 23, 2001
How would I go about finding out what my high-water mark would be for concurrent
connections over a period of time (SQL Server 7, SP 3 applied)?
Thanks in advance!!!
Gary Andrews
andrews_gary_w@solarturbines.com
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May 30, 2007
We're getting an error where we can't add a login with the full dns name of a user - domain.xyzuser, for example. Get an error 15401, "Windows NT user or group domain.xyzuser' not found". The domain has a different Netbios name and DNS domain names, so we can add the user when we use the form "netbiosnameuser". So far so good.
Unfortunately, we have another application - Office Share Point Server whose shared services provider won't run, giving errors in the event log every 60 seconds that "Windows NT user or group 'domain.xyzuser' not found".
It looks as if SQL insists upon listing users in the form netbiosdomainnameuser, and applications that look for domain.xyzuser simply fail to authenticate.
Suggestions?
jnfranc at yahoo period com
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Aug 30, 2006
I have had a development XP workstation with RS2000 and IIS sending reports via email for 6 months straight with no problems.
Today my subscriptions are failing with
Failure sending mail: The system cannot find the path specified.
Been searching and digging for hours, and if anyone has any ideas they are greatly appreciated.
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Jan 22, 2008
When my default.aspx page loads I get this error for the connection to my SQL 2005 DB. An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL
Server) I have already gone to Surface Area Configuration to ensure that Remoting with both Named Pipes or TCP/IP is enabled and it's set to both for remoting.I verified that my local account has access to the DB.Not sure what else to check.
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Jan 22, 2015
We have a previous SQL 2012 cluster that emails us when a new database is added. I am unable to figure out why we get this error any time we add a new database to it, and also it prevents us from adding a new availability group to this cluster because of this error.
I also am unable to figure out what profile it is talking about as this was setup before me and I am not a DBA.
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Jan 22, 2008
My site works fine in VWD2008 express, but I get this error when I try to use it on my live website.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.
According to this article: http://support.microsoft.com/kb/914277 I am supposed to:
1.
Click Start, point to Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Surface Area Configuration.
Ok, there is no such program in this folder. The only thing in there is "SQL Server Error and Usage Reporting"...
The other thing I am greatly concerned with is this: All is want is for my webpages to be able to access my database for user authentication. I DO NOT want to grant the internet rights to remote connect to my database.
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Dec 10, 2007
I get the following error and have been trying to figure out why I keep getting it. Initially, I had placed my project under wwwroot folder and ran it under IIS and it gave this error. Then I moved it to my local C drive and same thing. I am sharing this project with two other co-workers and all our config files and code files are same...they don't get this error but I do. I checked that SQL Server Client Network Utility has TCP/IP and the 'Named Pipes' enabled. I thought maybe I have setting in the Visual Studio 2005 that I'm not aware of that's causing this problem...it can't be the server since my co-workers aren't having this error and can't be anything in the code since all of us are sharing this project through vss. I dont' think using different version of .net framework can create this error. I changed the version from 2.0 to use 1.1x and it gave same error... Any help would be greatly appreciated. Thanks in advance.
Server Error in '/RBOdev' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739123
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +685966
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +109
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +383
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.GetConnectionHolder() +16
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.LoadPersonalizationBlobs(WebPartManager webPartManager, String path, String userName, Byte[]& sharedDataBlob, Byte[]& userDataBlob) +195
System.Web.UI.WebControls.WebParts.PersonalizationProvider.LoadPersonalizationState(WebPartManager webPartManager, Boolean ignoreCurrentUser) +95
System.Web.UI.WebControls.WebParts.WebPartPersonalization.Load() +105
System.Web.UI.WebControls.WebParts.WebPartManager.OnInit(EventArgs e) +497
System.Web.UI.Control.InitRecursive(Control namingContainer) +321
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692
Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832
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Jan 22, 2015
I have a table with the following columns employeeSessionID, OpDate, OpHour, sessionStartTime, sessionCloseTime. I need to see how many users remain active per hour. I can calculate how many logged in per hour, but I am stumped on how to count how many are active per hour. I have a single table that stores login data. I have created a query that pulls out the only the data needed from the table into a temp table using this query. Also note it is possible that the sessionCloseTime is null if the device has not been logged out this would need to be counted a active.
TABLE NAME #empSessionLog Contains the time stamp data OpDate, sessionStartTime and sessionCloseTime.
OpDatesessionStartTimesessionCloseTime
2015-01-202015-01-20 14:32:59.1302015-01-20 14:33:14.6299166
2015-01-202015-01-20 06:58:33.7302015-01-20 15:27:16.9133442
2015-01-202015-01-20 09:56:22.8402015-01-20 17:56:29.7555853
2015-01-202015-01-20 05:59:18.6132015-01-20 14:05:19.0426707
[code]....
can see how many sessions logged in per hour with the following statement:
SELECT
opDate,
FORMAT(DATEPART(HOUR, sessionStartTime), '00') AS opHour,
Count(*) AS Total
FROM #empSessionLog
Group BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00')
Order BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00') ASCResults:
opDateopHourTotal
2015-01-20041
[code]....
Where I am stuck is how do I count the sessions that remain active per hour until the session is closed with the sessionCloseTime.
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