SQL Server Is Not Releasing Extended SP DLL
Nov 3, 2006
During a Wise Installation upgrade of our software, we are renaming a
directory that contains our ExtendedSP DLL. We issue a
DBCC TSWSQLXP(Free) call before doing the rename, yet SQL Server,
still "holds on" to that DLL. We install a new version, and the ListDLLs
utility (from sysinternals) lists the new DLL in the correct directory.
However, when trying to remove the renamed directory, it won't let us
remove the old DLL because it says it is in use. We can delete the NEW
DLL in the NEW directory with no problem.
I have run the DBCC call numerous times and SQL Server STILL won't
release the DLL for deletion. The only way to delete the OLD DLL is to
stop the SQL Server, delete the DLL, and then restart SQL Server. We
do NOT want to do this because there may be other processes running in
SQL Server.
Any help here would be greatly appreciated.
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May 15, 2006
I'm running into a problem where the class I'm running seems to eat up a lot of memory with sql server. When it's done running, the memory usage never goes down in taskmanager. I can't figure out where the memory leak might be. Here's the code that is being called. Does anyone see a reason why it would continue to eat memory as it runs and then not release it? Thanks.
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
namespace QueryLoadTester
{
class JobSeeker
{
private string ConStr = @"Data Source=server;Initial Catalog=db;Integrated Security=True";
public JobSeeker() { }
#region UpdateJobSeeker
public void UpdateJobSeeker(string JobSeekerId)
{
string qry = "SELECT top 100 dbo.JobSeeker.JobSeekerID, dbo.JobSeeker.SiteId, dbo.JobSeeker.PositionTitle, dbo.JobSeeker.LocationID, dbo.JobSeeker.CurrentSalary, " +
"dbo.JobSeeker.DesiredSalary, dbo.JobSeeker.MinSalary, dbo.JobSeeker.CurrentHourly, dbo.JobSeeker.MinHourly, dbo.JobSeeker.Comments, " +
"dbo.JobSeeker.Resume, dbo.JobSeeker.WillRelocate, dbo.JobSeeker.DateAdded, dbo.JobSeeker.LastModified FROM dbo.JobSeeker " +
"where dbo.JobSeeker.Active=1 and dbo.JobSeeker.samplejobseeker=0 ";
if (JobSeekerId.Length > 0)
qry += " and dbo.JobSeeker.JobSeekerID=" + JobSeekerId;
qry += " and dbo.JobSeeker.JobSeekerID not in (Select JobSeekerId from JobSeekerFullTextSearch)";
SqlConnection cnInsert = new SqlConnection(ConStr);
SqlDataAdapter adp = new SqlDataAdapter(qry, cnInsert);
cnInsert.Open();
DataSet dsJobSeekers = new DataSet();
adp.Fill(dsJobSeekers);
adp.Dispose(); adp = null;
if (dsJobSeekers.Tables[0].Rows.Count > 0)
{
string jid = string.Empty;
string degree, degreegroup;
StringBuilder sb = new StringBuilder();
SqlCommand cmdInsert = new SqlCommand();
cmdInsert.Connection = cnInsert;
foreach (DataRow dr in dsJobSeekers.Tables[0].Rows)
{
jid = dr["JobSeekerID"].ToString();
if (JobSeekerId.Length > 0)
{
cmdInsert.CommandText = "Delete from JobSeekerFullTextSearch where JobSeekerId=" + JobSeekerId;
cmdInsert.ExecuteNonQuery();
}
DataSet dsExtras = GetJobSeekerExtras(jid, cnInsert);
SqlTransaction trans = cnInsert.BeginTransaction();
cmdInsert.Transaction = trans;
degree = degreegroup = string.Empty;
#region insert record into fulltextsearch
try
{
sb.Remove(0, sb.Length);
sb.Append("Insert into JobSeekerFullTextSearch (JobSeekerId, PositionTitle, LocationID, CurrentSalary, ");
sb.Append("DesiredSalary, MinSalary, CurrentHourly, MinHourly, CommentsResume, SiteId, WillRelocate, DateAdded, LastModified) values (");
sb.Append(jid);
sb.Append(",'");
sb.Append(dr["PositionTitle"].ToString().Replace("'", "''"));
sb.Append("',");
sb.Append("'");
sb.Append(dr["LocationID"].ToString().Replace("'", "''"));
sb.Append("',");
sb.Append(Nullify(dr["CurrentSalary"]));
sb.Append(",");
sb.Append(Nullify(dr["DesiredSalary"]));
sb.Append(",");
sb.Append(Nullify(dr["MinSalary"]));
sb.Append(",");
sb.Append(Nullify(dr["CurrentHourly"]));
sb.Append(",");
sb.Append(Nullify(dr["MinHourly"]));
sb.Append(",'");
sb.Append(dr["Comments"].ToString().Replace("'", "''"));
sb.Append(" ");
sb.Append(dr["Resume"].ToString().Replace("'", "''"));
sb.Append("',");
sb.Append(dr["SiteId"].ToString());
sb.Append(",");
sb.Append(Convert.ToInt32(Convert.ToBoolean(dr["WillRelocate"].ToString())));
sb.Append(",'");
sb.Append(dr["DateAdded"].ToString());
sb.Append("','");
sb.Append(dr["LastModified"].ToString());
sb.Append("')");
cmdInsert.CommandText = sb.ToString();
cmdInsert.ExecuteNonQuery();
#region dsExtras insert
//degree info
if (dsExtras.Tables.Count > 0 && dsExtras.Tables[0].Rows.Count > 0)
{
degree = dsExtras.Tables[0].Rows[0][0].ToString();
degreegroup = dsExtras.Tables[0].Rows[0][1].ToString();
if (degree.Length > 0 || degreegroup.Length > 0)
{
sb.Remove(0, sb.Length);
sb.Append("Update JobSeekerFullTextSearch set DegreeLevel='");
sb.Append(degree);
sb.Append("', DegreeLevelGroup=");
sb.Append(degreegroup);
sb.Append(" where JobSeekerId=");
sb.Append(jid);
cmdInsert.CommandText = sb.ToString();
cmdInsert.ExecuteNonQuery();
}
}
//disciplines info
if (dsExtras.Tables.Count > 1 && dsExtras.Tables[1].Rows.Count > 0)
{
sb.Remove(0, sb.Length);
foreach (DataRow d in dsExtras.Tables[1].Rows)
{
sb.Append(d[0].ToString());
sb.Append(",");
}
if (sb.ToString().Length > 0)
{
cmdInsert.CommandText = "Update JobSeekerFullTextSearch set DisciplineIdList='" + sb.ToString().Substring(0, sb.ToString().Length - 1) + "' where JobSeekerId=" + jid;
cmdInsert.ExecuteNonQuery();
}
}
//industries info
if (dsExtras.Tables.Count > 2 && dsExtras.Tables[2].Rows.Count > 0)
{
sb.Remove(0, sb.Length);
foreach (DataRow d in dsExtras.Tables[2].Rows)
{
sb.Append(d[0].ToString());
sb.Append(",");
}
if (sb.ToString().Length > 0)
{
cmdInsert.CommandText = "Update JobSeekerFullTextSearch set IndustryIdList='" + sb.ToString().Substring(0, sb.ToString().Length - 1) + "' where JobSeekerId=" + jid;
cmdInsert.ExecuteNonQuery();
}
}
//jobtypes info
if (dsExtras.Tables.Count > 3 && dsExtras.Tables[3].Rows.Count > 0)
{
sb.Remove(0, sb.Length);
foreach (DataRow d in dsExtras.Tables[3].Rows)
{
sb.Append(d[0].ToString());
sb.Append(",");
}
if (sb.ToString().Length > 0)
{
cmdInsert.CommandText = "Update JobSeekerFullTextSearch set JobTypeIdList='" + sb.ToString().Substring(0, sb.ToString().Length - 1) + "' where JobSeekerId=" + jid;
cmdInsert.ExecuteNonQuery();
}
}
#endregion
trans.Commit();
Console.WriteLine("Insert for " + jid);
}
catch (Exception exc)
{
trans.Rollback();
Console.WriteLine(jid + " - " + exc.ToString());
}
finally
{
trans.Dispose(); trans = null;
}
#endregion
dsExtras.Clear(); dsExtras.Dispose(); dsExtras = null;
}//end foreach
cmdInsert.Dispose(); cmdInsert = null;
}
cnInsert.Close(); cnInsert.Dispose(); cnInsert = null;
GC.Collect();
}
#endregion
#region GetJobSeekerExtras
private static DataSet GetJobSeekerExtras(string JobSeekerId, SqlConnection cn)
{
string qry = "Select JobSeekerDegree.DegreeLevel, VDegreeLevels.DegreeGroup from JobSeekerDegree inner join " +
" VDegreeLevels on JobSeekerDegree.DegreeLevel=VDegreeLevels.DegreeLevel where JobSeekerId=" + JobSeekerId + ";" +
"Select DisciplineID from JobSeekerDiscipline where JobSeekerId=" + JobSeekerId + ";" +
"Select IndustryID from JobSeekerIndustry where JobSeekerID=" + JobSeekerId + ";" +
"Select JobTypeID from JobSeekerJobType where JobSeekerID=" + JobSeekerId;
DataSet ds = new DataSet();
SqlDataAdapter adp = new SqlDataAdapter(qry, cn);
adp.Fill(ds);
adp.Dispose(); adp = null;
return ds;
}
#endregion
#region Nullify
private static string Nullify(object p)
{
if (p != System.DBNull.Value)
return p.ToString();
else
return "null";
}
#endregion
}
}
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Every so often during the day sql server 2005 will start to slow down to the point that my co-worker's queries begin to time out. He turned on profiler to look at what was going on behind the scenes.
We see where sa is releasing and acquring locks to the tune of 180,000 rows in a fifteen minute span when this behavior starts so does his time outs. He has reporting options and analysis services installed but not configured. His only connection is to his local database. Occasionally, you see a number like - (03000d8f0ecc) appear in the Text Data column in profiler for sa. I read something about reporting options using sa for clean up but I don't think that is what is happening here.
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Thx
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Any suggestions, thoughts, or ideas?
TYIA,
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i have created the folowing function but keep geting an error.
Only functions and extended stored procedures can be executed from within a function.
Why am i getting this error!
Create Function myDateAdd
(@buildd nvarchar(4), @avdate as nvarchar(25))
Returns nvarchar(25)
as
Begin
declare @ret nvarchar(25)
declare @sqlval as nvarchar(3000)
set @sqlval = 'select ''@ret'' = max(realday) from (
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I'm running a copy of SQL 7.0 EE on Win2K Advanced Server, using a Compaq 8500 w/ 750MB RAM.
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A
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Feb 6, 2007
vighnahar writes "I am using SQL server 2000 / 2005
If I run any query on SQL server it is using some memory for it’s execution but not releasing it’s memory after completion on SQL query. This is giving a problem in my application. Where for each user it is consuming 400 MB RAM on SQL server. after login of fifteen users server is getting slow.
Is there any way by which I can release memory of SQL server as I don’t want SQL server to keep it’s result etc in memory, So that I can use this memory for other processing.
I am writing sample code of VB6 to check for memory utilization. After clicking on button you can observer memory in task manager.
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Dim con As ADODB.Connection
Dim sSql As String
Dim Rs As New ADODB.Recordset
Set con = New ADODB.Connection
con.Open "Upcrest", "sa", ""
Rs.Open " select * from sientity ", con
MsgBox Rs.Source
Rs.Close
Set Rs = Nothing
con.Close
Set con = Nothing
End Sub"
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Feb 21, 2008
Hi,
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I have two main tables which are taking up the most space
name rows reserved data index_size unused
aspnet_Users 79225 48280 KB 23080 KB 25080 KB 120 KB
aspnet_Profile 69228 132680 KB 131456 KB 568 KB 656 KB
When i deleted some 8000 rows from aspnet_profile, some space should have been released. On the contrary, the db size increased. Where did the space go and why did the db size increase after deleting the records? There are no triggers either.
I thought it might be log files..but my hosting provider tells me that db is set to Simple Recovery which does not utilize a Log File. So we cannot shrink it.
Any idea how can i release some space. Does truncating a table release db space and not fill the log?
Please guide step by step. I am not very thorough with sql
thankls
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Hi all
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Hi,
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Mar 12, 2007
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Aug 27, 2004
and how can it be done?
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I use this code in a utility procedure (for performance testing) but it is really slow.
For example, a session with three events is taking 5 seconds to complete this query:
DECLARE @xml xml=
(
SELECT CAST(xet.target_data AS xml)
FROM sys.dm_xe_session_targets AS xet
JOIN sys.dm_xe_sessions AS xe
ON (xe.address = xet.event_session_address)
WHERE xe.name = @name
);
with data as
(
select
convert(varchar(128),convert(varbinary(128),'0x'+n.value('(action[@name="context_info"]/value/text())[1]','varchar(128)'),1)) context
, n.value('(data[@name="duration"]/value/text())[1]','int')/1000.0 duration
, n.value('(data[@name="cpu_time"]/value/text())[1]','bigint')/1000.0 cpu_time
, n.value('(data[@name="physical_reads"]/value/text())[1]','bigint') physical_reads
[code].....
So, I was wondering (considering the buffer is usually only holding a few hundred events)
1. Is this the wrong way to query data from a ring buffer?
2. Is there any way to make this code quicker?
3. Is it better to target a file store rather than a ring buffer for this?
select geometry::STGeomFromWKB(0x0106000000020000000103000000010000000B0000001000000000000840000000000000003D
D8CCCCCCCCCC0840000000000000003DD8CCCCCCCCCC08408014AE47E17AFC3F040000000000104000
[Code] .....
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Best Regards,
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I am trying to use xquery to get event data back from extended events. I am trying to use some sample data from Grant Fritchey but I am getting null records back. Below is the xml - I just want to retrieve a distinct list of the client_hostname and client_app_name.
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<data name="is_cached"><value>true</value></data><data name="is_dac">
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[Code] ....
The query I have that doesn't work is :
WITH xEvents AS
(SELECT object_name AS xEventName,
CAST (event_data AS xml) AS xEventData
FROM sys.fn_xe_file_target_read_file
('C:LoginTraceShared_0*.xel', NULL, NULL, NULL))
SELECT distinct top 1000 xEventName,
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exec sp_trace_setevent @TraceID, 20, 8, @on
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[code]...
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Hello
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Pls. help me,
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.......
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I created an extended procedure DLL according to the guidelines set forth in the Books Online. I placed this DLL to be called in a trigger. The DLL fires, but some aspects of the dll fail. Is there a C lang. limitation when used with SQL server? I can do file i/o in the dll (open a file, write to it) but other functions such as C API functions FindWindow / SendMessage always fail. I have tested the DLL outside of SQL server and it works fine. Whats up, I can't beleive that Microsoft would write SQLServer where only certain functions of the DLL called by SQL server will work.. Any ideas would be appreciated! KT
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