Warning - Kept Reference To Buffer - What Can Be Done About These Buffer Warnings?
Mar 6, 2008
Good day everyone,
I'm experiencing a completely random warning from any given row count component within any given data flow task. It occurs sporadically. Whilst distracting, I don't see any adverse effects to the data after the packages complete. Can someone weigh in on this warning and let me know if it is indeed benign or what I maybe able to do to fix it?
Here's the warning:
"A call to the ProcessInput method for input 75997 on component "CNT Rows sent for STG table" (75995) unexpectedly kept a reference to the buffer it was passed. The refcount on that buffer was 4 before the call, and 5 after the call returned."
Thanks,
Langston
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Apr 18, 2012
I encountered the following error while attempting to preview an RDL report I was developing in VS2010 using SSDT:"The size necessary to buffer the XML content exceeded the buffer quota"
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Oct 7, 2015
We have a set of reports with same header section in all the reports. So while developing a new report i used to copy that header section to the new report with same dataset names (without any change) , but while rendering the report it is throwing error " The size necessary to buffer the XML content exceeded the buffer quota".
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Apr 28, 2006
Hi
I have a master package that executes a series of sub packages run from a SQL Agent job. One of those sub packages has been stable for a week, running at least once per day, but it just failed despite having been run once already today with the same set of input data.
There were a series of errors showing in the event log for the Execute Package Task starting with "Buffer Type 15 had a size of 0 bytes.", then "The buffer manager failed to create a new buffer type.", then "The Data Flow task cannot register a buffer type. The type had 32 columns and was for execution tree 3.", then "The layout failed validation." and finally "Error 0xC0012050 while loading package file "C:[Package].dtsx". Package failed validation from the ExecutePackage task. The package cannot run.".
SQLIS.com reports the constant for the error code as DTS_E_REMOTEPACKAGEVALIDATION ( http://wiki.sqlis.com/default.aspx/SQLISWiki/0xC0012050.html ).
I then ran the package on my dev machine in BIDS and it worked fine, so I re-ran the job on the server and this time that package executed ok, but another one fell over but did not put anything in the event log.
Does any one have any idea what happened?
TIA . . . Ed
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Sep 7, 2006
Hi
I have written a custom data flow component that counts the rows coming through the pipeline and adds the counts to an object stored in a package variable.
The component sometimes generates warnings with the following message - "A call to the ProcessInput method for input 358 on component "<Component Name>" (354) unexpectedly kept a reference to the buffer it was passed. The refcount on that buffer was 4 before the call, and 5 after the call returned.".
The component is used several times throughout ~60 packages. It does not always occur on the same instance, or even in the same package, from one occasion to another. When all the packages are executed (from a master package - some in parallel and some in series) the warning is generated several times (around 10), but the warning is not generated at all when the packages are executed individually from BIDS. The values of the refcounts vary from message to message, but the difference is always 1 more after the call than it was before. The server has SP1 and the hotfix package installed, but the warning was being generated before SP1.
I do not understand what could be keeping a reference to the buffer. The ProcessInput method is very basic:
public override void ProcessInput(int inputID, PipelineBuffer buffer)
{
try
{
if (!buffer.EndOfRowset)
{
totalRowCount += buffer.RowCount;
}
}
catch (Exception ex)
{
bool cancel = false;
ComponentMetaData.FireError(0, ComponentMetaData.Name, ex.Message, string.Empty, 0, out cancel);
throw new Exception("Could not process input.", ex);
}
}
Does anyone have any idea what could be causing this, or ideas for things I should be investigating?
TIA . . . Ed
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May 29, 2008
I've written an asynchronous script component and I have created the output buffer. 500,000 rows go into the input but only 1500 to 2000 rows come out berfore I get an SSIS Object reference not set to an instance of an object Error. The error occurs at the AddRow method of the outputbuffer (that's how I know it's gone). Why does this happen? Is there a way to sync up the output buffer with the input buffer?
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Apr 6, 2007
The scenario is as follows: I have a source with many rows. Each row has a column called max_qty_value. I need to perform a calculation using another column called qty. This calculation is something similar to dividing qty/(ceiling) max_qty_value. Once I have that number I need to write an additional duplicate row for each value from the prior calculation performed. For example, 15/4 = 4. I need to write 4 rows to the same target table as in line information for a purchase order.
The multicast transform appears to only support fixed and/or predetermined outputs. How do I design this logic in SSIS to write out dynamic number of rows to a target table.
Any ideas would be greatly appreciated.
thanks
John
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Apr 3, 2001
I'm having a problem importing a text file into a SQL db using DTS. I have to transform some of the data that is being imported so I think Bulk import is out of the question.
Everything works fine until a hit a row that contains more than 255 characters in one cell. Once it encounters that row, it fires this error:
"Error at source for row number 9.Errors encountered so far in this task :1
General Error: -2147217887(80040E21)
Data for Source Column 3('Col3') is too large for the specified buffer size."
I found a entry in the MS KnowledgeBase that addresses the symptom but the workaround doesn't fix it:
http://support.microsoft.com/support/kb/articles/Q281/5/17.ASP?LN=EN-US&SD=tech&FR=0&qry=DTS%20buffer&rnk=3&src=DHCS_MSPSS_tech_SRCH&SPR=SQL
Anyone have any ideas.....
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Sep 30, 1999
Help, have recently upgraded from 6.5 to 7.0 and have come across a problem with performance. The problem appears to relate to the buffer cache being flushed, the buffer cache hit ratio drops from 98% to 0% in a matter of a second. It then very slowly grows, then is flushed again, then increase slowly upto 30%.
Does any one have any ideas as to what would flush the buffer cache?
Any comments would be much appreciated - cheers
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Jan 27, 2003
Hi,
We upgraded our applications from 7.0 server to win 2000, sql server 2000 sp2 machine.
While running the same batch job that we used to run on the old NT server without any problem, job failed with the following message
'Msg 845, Sev 17: Time-out occurred while waiting for buffer latch type 3 for page (1:8200), database ID 2. [SQLSTATE 42000]'.
Can someone tell me what's going on? This new server is supposed to be much more powerful than the old server.
What value should I monitor for the new server to prevent this timeout?
-Shaili
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Aug 22, 2007
Hi all,
I have a strange problem that I need to solve as soon as possible.
I have created two CLR UDTs called point and point_list. Each record of a point_list consists of a list of points. I created a CLR stored procedure which reads some raw data and updates the point_list records.
When I execute the stored procedure the following error appears :
System.Data.SqlTypes.SqlTypeException: The buffer is insufficient. Read or write operation failed.
System.Data.SqlTypes.SqlTypeException:
at System.Data.SqlTypes.SqlBytes.Write(Int64 offset, Byte[] buffer, Int32 offsetInBuffer, Int32 count)
at System.Data.SqlTypes.StreamOnSqlBytes.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.BinaryWriter.Write(Char ch) etc ...
Does anybody know what should I do ?
Thanks!
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Jul 20, 2005
Hi thereAnybody know how to increase the MS SQL server buffer size?I get an error when trying so insert some pictures as OLE objects. Whentransfering to the server i get an error, that the buffer sizes needs tobe increased.RegardsRudi W.
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Oct 17, 2006
I am trying to set a decimal value to the pipelinecolumn buffer, but it doesnt get set, and the value is NULL.
Here is the portion of the code of what I am trying to do:
if (columnInfos[x].colName.EndsWith("_CRC"))
{
int a;
a_cmp tst = new a_cmp();
a= tst.a_crc32(inputbufferstream); this function returns a integer value
buffer.SetDecimal(colInfo.bufferColumnIndex, Convert.ToDecimal(a));
}
Please let me know how to set a decimal value in the buffer.
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Aug 8, 2007
Hi
A script component receives some input. But I just can't get at the first row??
Basically, if i use the NextRow method in the in the Do statement, then it advances the row collection to the second row before it gets into the code inside the loop?? BUT, if I use the EndOfRowset property to define my loop then I get an error:
[PipelineBuffer has encountered an invalid row index value]
I'm guessing this means...I have to call NextRow before i access the data in the collection? But thats retarted because then I miss the first row?? what? What am I missing??
This is the code which works but I miss the first row:
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim strConcept As String
Do While Row.NextRow()
strConcept = Row.concept
updateDb(strConcept)
Loop
End Sub
This is the code which throws the invalid row index error:
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim strConcept As String
Do While Not Row.EndOfRowSet()
strConcept = Row.concept
updateDb(strConcept)
Row.NextRow()
Loop
End Sub
I've put some try catches in there an the error happens on the line which calls Row.concept....?
Can anyone help, it must be something I'm messing up
thanks!!
andy
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Dec 28, 2006
All,
My weekly loading is failed and here is the error message I got. Could someone kindly point me what is the problem and how to detail with it?
Thanks
Error: 0xC0047012 at Fact_ResidentService, DTS.Pipeline: A buffer failed while allocating 63936 bytes.
Error: 0xC0047011 at Fact_ResidentService, DTS.Pipeline: The system reports 43 percent memory load. There are 4227104768 bytes of physical memory with 2378113024 bytes free. There are 8796092891136 bytes of virtual memory with 8787211939840 bytes free. The paging file has 10300792832 bytes with 14786560 bytes free.
Error: 0xC0047022 at Fact_ResidentService, DTS.Pipeline: The ProcessInput method on component "Union All 1" (3629) failed with error code 0x8007000E. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.
Error: 0xC02020C4 at Fact_ResidentService, From_Basis [16]: The attempt to add a row to the Data Flow task buffer failed with error code 0xC0047020.
Error: 0xC0047038 at Fact_ResidentService, DTS.Pipeline: The PrimeOutput method on component "From_Basis" (16) returned error code 0xC02020C4. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
Error: 0xC0047021 at Fact_ResidentService, DTS.Pipeline: Thread "WorkThread0" has exited with error code 0x8007000E.
Error: 0xC0047021 at Fact_ResidentService, DTS.Pipeline: Thread "SourceThread1" has exited with error code 0xC0047038.
Error: 0xC0047039 at Fact_ResidentService, DTS.Pipeline: Thread "WorkThread2" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown.
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May 29, 2006
When running a package created on my local machine i get no errors at all but when i try to run the same package on the server i get an error specifying Microsoft.SqlServer.Dts.Pipeline.DoesNotFitBufferException: The value is too large to fit in the column data area of the buffer.
I have tried changing the defaultbuffersize of the data flow task but this makes no difference. I think that a buffer size for a particular column is being exceed but i cannot find anywhere to set this property.
Has anyone else struck this error?
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Oct 22, 2007
We had a package fail when trying to get 3 buffers. I also saw another message saying "18430 buffers were considered and 18430 were locked. "
1. Why are buffers locked in SSIS
2. How can i reduce the number of locked buffers.
This one in question was a very large lookup.
Thanks
Glenn
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Nov 20, 2000
Upon running DTS manually to transfer data from Excel into SQL Server, I
get the error:
-----------------------------ERROR OUPTUT ------------------------------------
Error at Source for Row number 264. Errors encountered so far in this task: 1. General error -2147217887 (80040E21).
Data for source column 3 ('Value') is too large for the specified buffer size.
---------------------------END ERROR OUTPUT----------------------------------
*** 'Value' is varchar(4000); largest having length of 1000.
*** The network packet size is 4096.
?? AM I SUPPOSED TO CHANGE THE BUFFER SIZE??
Your kind help is greatly appreciated
Thanks
Ziggy
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Nov 1, 1999
I have been looking at Books Online and I'm trying to figure out how I can resolve this error.
MSG 845, Level 17, State 1
Time out occured while waiting for buffer latch type 2 for page.....
Thanks..
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Jun 15, 2004
Time out occurred while waiting for buffer latch type 2,bp 0x18b7d40, page 1:11558916), stat 0xb, object ID 9:1842105603:2, EC 0x5862D9C8 : 0, waittime 300. Not continuing to wait.
What does this mean any reason and fix for it..?
Thanks
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May 24, 2006
Hi
I've been searching this site and the Web for info on an error message I get when importing from Access 2003 into SQL Server 2000.
'Data for Source Column 3('Col3') is too large for the specified buffer size'
A memo field in Access is larger than 255.
I have followed advice about putting the field to the first column. This doesn't work - the error just returns the new column number. In fact, I've tried just importing the first column - no good.
I am wary about making Registry changes as comments on the Web say this doesn't work either.
Does anybody have the solution for this.
Paul
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May 7, 2004
I want to trace the user logins by using a stored procedure. This script (sp_login_trace) is created by the SQL Profiler tool. (Once this procedure works well, I will use sp_procoption to run it automatically everytime the SQL Server startup.)
After I successfully created sp_login_trace, I run it (exec sp_login_trace). The trace process is started and TraceID is 1. (I use select * from ::fn_trace_getinfo(default) to verify it). However the file size of login_trace.trc is always 0 even after I use Query Ananlysis or Eneterprise manager to let some users to login into the SQL Server instance. (when I use SQL Profiler to start a trace, the trace file size will increase along with users continaully login in). At that time if I use SQL Profiler to open the login_trace.trc file, the system will give me an error message: No data since Empty File.
After I stop and delete the trace process, I find that the file size of login_trace.trc becomes 128K and I can see the login records caught by sp_login_trace if I use SQL Profiler to open this file again.
How can I flush the buffer to trc file frequently without need of stopping trace process?
Thanks for helps in advance.
Leon
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Sep 1, 2015
Last Sunday on our Primary server I saw some blocking and the First spid that blocked everything was waiting on LogBuffer wait. At that time the server was not running hot and our DB is on SSD's. There was no memory pressure(1 TB of memory on the server) It is strange why we should get LogBuffer wait when we are running on the fastest disks possible and there was not much action going on the DB.
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Jun 12, 2008
hello again,
This is another pending issue.
It is another package accessing the same database of the same system ("Sage" for commercial and accounting operations).
When run, it gives an error message, as following (also translated from french):
Simba ODBC Driver[CBase]: Very Small/Insufficient Buffer Zone. Data is truncated.
it seems there is a bug in the database, as when we run the same package on another database, it runs successfully.
It may be possible that the database needs a maintenance. Is it possible to advise how to do it, if it is so?
May you help in helping resolve this issue?
thank you in advance.
Leïla
P.S: How is it possible to attach a file?
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Feb 15, 2007
Ramesh writes "Hi,
Is there any possibility to execute a query in sql server 2000 without keep / using buffer.
Thanks"
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May 16, 2007
Hi,
My problem is that I cannot completely clean buffer cache on SQL Server 2005 version 9.00.2047.00 (probably SP1).
Right after I run DBCC DROPCLEANBUFFERS in the context of my database (this is development server, and so far I am only the one who is working with a particular database), I run a script that quetries sys.dm_os_buffer_descriptors view also from the context of my database to make sure that the buffer cache is really clean. However it shows large number of entries totalling 42 MB.
I ran both DBCC an the script in the past too, and it always showed nothing in the results, that means that buffers were really clean. The reason why I am running this is for benchmarking of existing and new application.
Does anybody have any idea, suggestions, how to troubleshoot this issue ? I already closed all connections to this database, but rebooting the server is not an option since other people are also working on it.
Thanks
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Jun 1, 2006
Getting below sort of error message when running a simple select to a table from Query analyser 2000 to a SQLServer 2000 running with SP4 on different sort of times.
1)
[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionRead (InvalidParam()).
Server: Msg 11, Level 16, State 1, Line 0
General network error. Check your network documentation.
Connection Broken
2)
[Microsoft][ODBC SQL Server Driver]Protocol error in TDS stream
[Microsoft][ODBC SQL Server Driver]TDS buffer length too large
[Microsoft][ODBC SQL Server Driver]Protocol error in TDS stream
3)
[Microsoft][ODBC SQL Server Driver]Unknown token received from SQL Server
[Microsoft][ODBC SQL Server Driver]Invalid cursor state
[Microsoft][ODBC SQL Server Driver]Unknown token received from SQL Server
Any one faced this error? Any advise please,
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Sep 28, 2007
Could anybody help me on how to do buffer flush before program exit?
I am using OLE DB to insert record to SQL CE database, but cannot control data commit, each time if I exit too quick, then all of inserted record cannot stored into database .sdf file. Thanks a lot!
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Jul 13, 2006
Error: "The specified buffer size is not valid. [buffer size specified = 0]
Hello, im very new to SQL 2005 everywhere but looked like it could do the job for what i needed:
Im working on a c# (.net 2.0) project and loaded data
(one column from one table, 800 rows, text, no greater than 80characters in length)
from an access db into a data set, then lnserted the data in SQLce, great it works fab!
but as soon as I select another field(text, <=10) from the access db, and try to insert it into sql i get the error...
what have i missed???
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Feb 6, 2007
I am using a script component to create the output buffer dynamically. I use the Outputbuffer.AddRow() call. I then set all the fields I want, and its added to the output and later inserted into the database. If a field value fails it causes an error, but the record is partially inserted upto the point where the set field command caused the error. So if I set 10 fields, and it fails on field 5 it inserts data for the 5 fields that worked and nulls into the others.
As a result I have a try catch clause, and if it fails I want to cancell the addition of the new row. Is there a command like RemoveRow(), rollback, etc that can be used to not insert the record in error?
Sample code..
Try
PaymentOutputBuffer.AddRow()
PaymentOutputBuffer.Sequence = pi + 1
PaymentOutputBuffer.RecordID = Row.RecordID
PaymentOutputBuffer.PaymentMethod = PaymentArray(pi)
Catch e As Exception
PaymentErrorOutputBuffer.removecurrentrow(??)
End Try
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Jul 9, 2007
Hello,
I am getting "overflow the disk I/O buffer" in my SSIS, and what's weird is that when I construct the same SSIS in a new package, it works perfectly. I almost want to believe that it could be a bug. Some days when I import the files, it works fine, but some days it errors out with this error on the last column. Is there some setting with CR/LF or LF that I have to pay attention to avoid this type of random error?
Thanks for your help!
-Lawrence
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Oct 19, 2005
Sql version
Microsoft SQL Server 2000 - 8.00.818 (Intel X86)
May 31 2003 16:08:15
Copyright (c) 1988-2003 Microsoft Corporation
Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4)
I have dts running 24 X 7 every 5 minutes
I noticed DTS failed few times a day with error
Step Error Source: Microsoft OLE DB Provider for SQL Server
Step Error Description:Transaction (Process ID 74) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Step Error code: 80004005
Step Error Help File:
Step Error Help Context ID:0
The is no entry about in Server server log files.
will trace identify deadlock and why deadlock info not entred into log file ?
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Jan 2, 2004
Does anyone know how to measure the buffer cache hit ratio? I have been reading a lot about it but can't find this measurement in Performance Monitor.
Thanks
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