Time Out Occurred Waiting For Buffer Latch??
Aug 23, 2004
Hi Guys,
One of your SQLSERVER 7, Server throws the below error message into the log file. It won't go away until the server get rebooted. When this error start showing up.. customers have hard time connecting to the Server, eventually we have to reboot the server.
Time out occurred while waiting for buffer latch type 1, bp 0x18b9200, page (1:50859), stat 0xb, object ID 17:1954106002:1, waittime 500. Continuing to wait.
Any help is greatly appericated.
thanks
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Mar 31, 2015
I am getting below error while executing any SQL query on database server.
Time-out occurred while waiting for buffer latch type 2 for page (20:17937), database ID 13.
There is currently some space issue on the server, so by any chance this space issue is causing this error?
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Jul 20, 2005
Does anybody know what might cause the following message to show up inthe SQL Server Error Log?:Time out occurred while waiting for buffer latch type 2, bp0x12260f80, page (5:77914), stat 0x40d, object ID 7:421576540:0,waittime 500. Continuing to wait.I've read several articles about what to do about this situation onSQL Server 2000, but I'm running SQL Server 7.0. Specifically, I'mrunning version 7.00.842. Is there a way to resolve this problemwithout upgrading to some flavor of SQL Server 2000?
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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 14, 2004
Hi All,
This might be a bit of a question like "how long is a peice of string" however here goes.....
What is considered to be a high average latch time?
We have a SQL2000 machine which has:
700-900 ms average latch time
100% Buffer Cache Hit Ratio
No memory pages / second
Very low (almost always below 5%) cpu usage
Next to no disk transfers / sec
0 average lock time
I am surprised that the latch time is so high. Any ideas, whether I should be looking at something in particular?
Cheers in advance.
Troy
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Jan 6, 2008
I setup a SQL Agent to send me an email when the Average Latch Wait Time is greater than 300ms. Now I receive an email every 15 seconds stating that the current ALWT is 3916ms. That value never changes with the emails. However, the perfmon shows nothing at all (shows zero).
I also have a Buffer cache hit ratio of 2848.00.
These numbers are when there is NOBODY on the DB at all It is just sitting there. When I reboot the server, as soon as SQL starts it starts to send the emails again.
Server: Intel Xeon Quad Core 2.66
RAM: 4GB (with /3GB in the boot.ini)
RAID 1: OS
RAID 1: Data (DB and logs)
CPU Utilization: 0-1%
RAM Utilization: 527MB
OS: Server 2003 R2 With SP2
SQL: 2005 Standard with SP2
How can I determine if the ALWT is really 3916?
I executed 'Select * from sysprocesses where SPID>50 and waittime>0'
Which showed;
BROKER_RECEIVE_WAITFOR
waittime=110640ms
waittype=0x0075
status=suspended
program_name=DatabaseMail90 - Id<3780>
Any assistance is greatly appreciated.
Thank You
Magnum
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Apr 7, 2004
During a bulk insert I am receiving this error message in the sql log. It appears to have caused the server to reboot the other night..
I am running SQL 2000 8.00.760 (Service Pack 3)
2004-04-07 12:57:52.82 spid8 WARNING: EC 259683c0, 0 waited 32100 sec. on latch 807133b0. Not a BUF latch.
2004-04-07 12:57:52.82 spid8 Waiting for type 0x4, current count 0xa, current owning EC 0x70899570.
Any ideas???
Thanks
Scott
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Sep 22, 2006
Ben writes "Dbcc checkdb showed a database to have consistency errors, however running repair_allow_data_loss resulted in the following error
Server: Msg 8966, Level 16, State 1, Line 2
Could not read and latch page (1:1370) with latch type SH. sysindexes failed.
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Please could you tell me how to fix it, and how it occurred in the first place?
Thanks"
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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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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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Dec 6, 2007
Hi,
we''re currently performing a dry run of migrating some large (100GB+) SQL Server 2000 databases from a SQL 2000 cluster onto a new 2005 mirrorred database pair. The new configuration has completely separate database servers and a new dedicated SAN.
Upon restoring our largest database we are seeing the following errors recorded in the log after setting up mirroring and then trying to run DBCC CHECKDB:
"Unable to read and latch page (1:1323852) with latch type SH. 21(The device is not ready.) failed."
We are currently investigating the SAN hardware logs to determine if this might be a physical issue as it would seem to indicate, however has anyone any experience of this or insight into what may cause this error?
Thanks in advance!
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Sep 21, 2007
Hi!
Is it possible to generate a script, that extracts every bit of data it can, from tables which suffers from latch errors;
DBCC CHECKDB ->
Msg 7985, Level 16, State 2, Line 1
System table pre-checks: Object ID 4. Could not read and latch page (1:403) with latch type SH. Check statement terminated due to unrepairable error.
So bad news on that one. There are no backup available that I know off, so all bets are off on that part of the recovery process.
The "good news" part of the problem, is that it is possible to extract some data out of the table, before SQL server 2005 returns the error. So what I want to do, is get every bit out I can, doing it somehow automatically, so I don't have to run bcp on 180 tables :).
Presumeably, this is quite possible, but how?
NB. If I do a complete basic SELECT * FROM tbl1, it returns data, then errors out, but what about the data after the last row SELECT returns? Is it possible, that there might be data in the table that are recoverable after the 'broken row(s)'?
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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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Feb 20, 2008
We are having a problem with an SSIS package. The package gets stuck when it runs a data flow component that reads data from 5 large tables, performs a union on the data, does a conversion on one field and then writes the data to another table. This all happens in the same database and the ssis package runs on the same server as the database.
When I look at the waiting tasks on the sql server I always see the following type of scenario. It is always the ASYNC_NETWORK_IO that is causing the others to wait.
SPID
Wait type
duration
Waiting Address
Blocking Address
118
ASYNC_NETWORK_IO
47
0x0000000000C2FD68
NULL
118
CXPACKET
47
0x0000000000C2F2E8
0x0000000000C2FD68
118
CXPACKET
47
0x0000000000EB4DA8
0x0000000000C2FD68
118
CXPACKET
47
0x0000000000ECB048
0x0000000000C2FD68
118
CXPACKET
47
0x0000000000EE12E8
0x0000000000C2FD68
In some cases the duration column goes up to several hours until we finally just kill the package. At the same time, we also see that session 118 is consuming very large amounts of memory (in sys.dm_exec_query_memory_grants). However, when we look at the dtexec process that is running the package on the server it only has a working set of about 100Mb. We've tried rewriting the dataflow task as a simple stored procedure and this goes through smoothly.
Can anyone shed some light on what is going on and how to avoid this type of locking situation (other than just using plain old T-SQL).
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Jun 20, 2001
We have a two node cluster running W2K and SQL2000. The agent starts, but we cannot access any of the jobs. It gives us the 14258 Agent is starting, try again later... error message. We know that this is not the case, we have waited several hours without it "starting". The SQL Agent log indicates that the agent is waiting on SQL Server to recover databases, but all of our databases are up. It is almost as if during startup a flag did not get set to indicate that a database was recovered.
Has anyone run across this before? If so, did you ever figure out how to fix it?
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Feb 17, 2005
is there a way to automate a job to wait on a flag in a directory and to start my maintenance plans ?
if so how would i code is there external functions plz help.
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May 7, 2008
I have a Stored Procedure which Ideally should run when a Customer Logs in, the Procedure will check the available stock and create a Temp Table for the Information, which allows many other Queries in the site to run a lot faster, (due to no joins). The Query has taken as much as 30seconds (Lots of Records and 1/2 dozen Joins) to run upon log in and causing a Timeout for the web application.
I want the procedure to run as it is, but for the login method to not be dependent on the Process tried this in .NET cmd.BeginExecuteNonQuery() (cmd=SQLCOmmand)
which doesn't do what I want it just allows me to run heaps of QUeries at the same time.
Can anyone help me with getting this procedure to run and not hold up the Web application? Not sure whether I need to do this in .NET, or whether I can get .NET to run a Batch File or something, but someone must have had a similiar problem, please help.
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Jun 17, 2004
Is anyone have already encountered such a problem :
When a table is locked by several locks (key, pag), either a SELECT request which does not need to lock any row cannot succeed.
In SQL Server Enterprise Manager, I see that my request is waiting for a lock "LCK_M_S" !!!
How I can avoid this kind of situation which seems to me completely abnormal.
I have never been faced with this kind of problem in Oracle.
Thanks for anyone who will help me to resolve this "bug".
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Apr 6, 2015
I'm wondering if there is any way for me to execute any type of command (delete, insert, create, alter, etc) on management studio without having to wait the server answer.
On Oracle, I use DBMS_JOB. On SQL Server, do I have to create a SQL SERVER Agent Job? What if I don't have permission to create that kind of jobs?
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Feb 6, 2007
I am attempting to modify the ADS sample to work with my own application and am running into a snag. I have a simple sqlce database that has two tables in it. I have everything working up until the point where I try to "Pull" the data. At this point in time this is what happens.
1.) I successfully Drop Table1 from the SQLCE database and then Pull "Table1" from the desktop database
2.) When attempting to Pull Table2. It runs the DoesTableExist Function, identifies that the table does exist and therefore tries to run the "DropTable" routine before Pulling the desktop Table2 data. As soon as the sqlCmd.ExecuteNonQuery of the DropTable routine runs I get the following error....
"The system timed out waiting for a lock. [ Session id = 1,Thread id = 1318094114,Process id = 1318068802,Table name = Table2,Conflict type = x lock (s blocks),Resource = DDL ][Table2]"
Of Note...I converted the sample to VB.NET so it's possible something didn't convert right? My guess is that it probably has something to with my SQLCE Database but I haven't the slightest clue where to go from there. Anyone have any ideas what might be going on?
Thanks,
Mike
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Jan 28, 2008
Hi!
I hope to get some help with a stored procedure that never stops executing when run from Reporting Services development environment.
The server: SQL Server 2005 SP2 x86, 2 gig ram, 2 processor cores.
The stored procedure I execute is simple, it declares and sets some variables and then a executes a select statement
with 6 joins.
If I execute the stored procedure from Management Studio the query runs and returns about 50 000 rows in ~2 seconds. No problems!
The problems arises when I execute the stored procedure from visual studio (testing my reporting services report). The query will never complete its execution!?
I checked the activity monitor and can verify I have NO processses with any information in the blocked by or blocking column.
The strange thing is I got 3 rows for process id 64, only one row (row 1) printing the executing user.
Row 1: Stutus suspenden, Wait Type CXPACKET
Row 2 and 3 are pending between runnable and suspended and wait typoe pageiolatch_ex and no wait type at all when I refresh. These are probably parallell threads executed in the query.
The strange thing here is that this process never completes and if I do a trace the last command executed is select statement. I don´t understand what the problem is, sql server bug? Parellelism problem (in this case, why?)
Any help is appreciated
Regards
Per
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Jun 2, 2015
My Excel Pivot Table connects to and SSAS 2008 cube. What exactly happens in the back-end during 'Waiting for the query to be executed...'
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Mar 16, 2007
hi!
I wonder if anyone can tell me how we can run select queries in an OLE DB data flow task and tell the target SQL 2000 server it should allow reads at all time. Currently when a lock is on the source table our SSIS package will sit and wait untill the lock on the source table is gone.
Thanks.
Marc
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May 22, 2007
I am relatively new to SQL Server so excuse my ignorance.
I have noticed in many of my SQL Server 2005 instances that the tempdb database is very often reporting the log mode as waiting active_transaction or waiting checkpoint.
Is this of concern, how can I determine the cause of these waits and how can they be reduced or eliminated ?
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Jul 30, 2007
Frequently, when I'm connecting to my server through SSMS i get "Is Busy: Microsoft SQL Server is waiting to complete an internal operation...."
And it tells me that if I get that message a lot, I should let Microsoft know.
So -- Microsoft, I'm letting you know.
Can anyone tell me why this is happening? I've searched MSDN and the knowledge base...I can only find one reference, and that is to a database diagram issue.
It takes a while to connect when this happens. So far, I haven't found a common denominator. It happens if I'm logged into my server and I try to connect to another instance, and it happens when I'm using my desktop...
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Feb 24, 2006
vs2005 help���� a textbox ，a button ， a sqldatasource ,a dataview when click the button execute sql: select * from authors where name=''+textbox.text+''
the dataset returned list in dataview , just like c/s 。 I feel it very hard to
contral sqldatasource,
code is holpful 2!
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Oct 3, 2000
Hi all,
I am running Sql 7.0 with sp2. I have a memory 4GB. When i am running some batch jobs and replications i am getting following error number:
ERROR NUMBER : 8645
A time out occurred while waiting for memory resources to execute the query. Rerun the query.
Can anyone suggest me how i have to resolve the above error, because i was facing this error very often. Pls suggest me a permanent solution.
Thanks!
--Kavira
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Jun 5, 2002
SQL agent is using NT login with all permission & agent and sqlserver using the same NT username . SA password has not been changed for more than one year.
The SQL Server agent log is showing "waiting to recover database". What could be the reason ?
------------
Ray Miao at 6/5/2002 8:13:38 AM
Double check with sql service manager. Did you change sa pwd?
------------
Shaji at 6/5/2002 4:36:16 AM
Hi ,
Whenever I restart the Server , SQL server service is starting properly, but the agent is showing the green sign in EM ,agent Log also its showing its started. But in EM the jobs are not showing the next run time its showing ( Date and time not available). When I double click the jobs its showing the following error message
Micorsoft SQL - DMO ( ODBC Sql state 42000)
Error 14258 : can not perform this operation while SQL server agent is starting)
FYI :This server contain the databases of SMS too .
Thank you ,
Shaji
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Sep 22, 2006
We are useing merge replication with MSSQL Server 2000 for our two location, we have more than 6 database in replication on has issue following error and few time not updated data due to this error -
The process is running and is waiting for a response from one of the backend CONNECTION
With regards
R.MAll
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Feb 21, 2007
I have a query to refer to the data source in as400 with ODBC 'iSeries Access for Windows ODBC data source' and a linked server with 'oledb for ODBC driver' in SQL2005 (9.0.2047)
Now we got 2 problems,
1. When we refer to the view with openquery e.g select * from openquery (abc, 'select * from dates')
This query continue to run without ending. In Activity monitor, we found that it is waiting for resource ole db
2. Since the process continue to run without ending, I kill the process in activity monitor or by command 'kill'. It shows the status 'KILLED/ROLLBACK' and it returns 'SPID 197: transaction rollback in progress. Estimated rollback completion: 0%. Estimated time remaining: 0 seconds.' in 'kill 197 with STATUSONLY'
In problem 1, I found some ppl encountered the same problem (waiting for resource oledb) with openquery to different data source e.g. vfp, oracle.
In problem 2, we can't restart the sql server for clear the unkillable process
Kindly advise. Thanks in advance.
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