What DTS:Result & DTS:PrecedenceMap are used for?
What values can DTS:Result contain and what do they mean? [Today I have only seen "0".]
What values can DTS:PrecedenceMap contain and what do they mean? [Today I have only seen "Y" & "".]
I have a package with settings SaveCheckpoints=True and CheckpointUsage = Never. After the package failed I fixed the cause of failure by setting a database column to allow nulls. Then I went to our web app that we built to monitor package execution and clicked on the button to restart the package. The web app loads the package and then sets the CheckpointUsage property of the package object to 'Always'. Then it executes the package in a new thread. The package then produced this error:
Checkpoint file "E:Package1Checkpoint" failed to open due to error 0x80070005 "Access is denied.".
Since there was only one remaining task to run in the package I ran it manually.
Now here is the really interesting part. I then needed to run the same package but with different parameters. When I attempted to run it with the saved checkpoint settings (CheckpointUsage=Never, SaveCheckpoints=True) I got this error:
"An existing checkpoint file is found with contents that do not appear to be for this package, so the file cannot be overwritten to start saving new checkpoints. Remove the existing checkpoint file and try again. This error occurs when a checkpoint file exists, the package is set to not use a checkpoint file, but to save checkpoints. The existing checkpoint file will not be overwritten. "
So I then attempted to rename the checkpoint file so it would not interfere, however, it would not let me, saying that the file was in use.
So what I had to do was add a configuration entry which set SaveCheckpoints to False. Then I was able to run the package.
I have an SSIS solution with 8 packages in it. I have checkpoint turned on with the 'If Exists' option. Each of the 8 packages have 8 separate checkpoint files specified.
One out of two runs will fail with one of the below errors:
The checkpoint file \xxxxxxxx is locked by another process. This may occur if another instance of this package is currently executing.
Checkpoint file \xxxxxxxx failed to open due to error 0x80070020 "The process cannot access the file because it is being used by another proces
I have checked all the settings and everything looks fine, looks like the problem is when you have many Control Flow tasks in a package and if two of them are completed at the same time and they try to write to this file one of them is unable to write and it fails.
This is causing the entire job to fail even though the control flow was successful.
Anyone encounter this issue? Any assistance is appreciated.
I have a situation where I need to make sure a task executes regardless of whether the package starts from a checkpoint or not. Is this possible?
Here's the scenario:
I have a package with 3 tasks {TaskA, TaskB, TaskC} that execute serially using OnSuccess precedence constraints. The package is setup to use checkpoints so that if a task fails the package will restart from that failed task TaskA is insignificant here. TaskB fetches some data and puts it in a raw file TaskC inserts that raw file data into a table.
Problem is that the insertion violates an integrity constraint in the database - so it fails. The problem is easily fixed but it needs to be fixed in TaskB because that is where the data is sourced.
So, I need to be able to execute TaskB again, even though it was TaskC that failed. Currently the package restarts from TaskC which reuses the raw file (which has the bad data in it) so the package continues to fail even though the cause of the problem has been fixed.
How do I configure the package in order to execute TaskB again? Is it even possible?
-The first task in that package (an Exec SQL Task) retrieves a timestamp value from an external source
-That timestamp value is used in data-flows to pull data that has been changed since then
-At the end of the package the value in the db is updated
Now...if something fails then on the next execution the checkpoint file will kick in. But this means that the first task (which retrieves the timestamp) will not execute and therefore all the data-flows will be pulling the wrong data.
The only way I can think of getting around this problem is to specify that a task should execute regardless of the presence of a checkpoint file. Unfortunately it seems this cannot be done.
Another option might be to put an OnPreExecute task on the package that gets the timestamp value.
Anyone got any advice about how I should progress? Short of a suggestion from elsewhere I'm going to go with the tactic of using the OnPreExecute to retrieve the timestamp.
i have this error when trying to run the package in development mode. and i can not decipher this non-intuitive message:
Error: 0xC001604D at <package name>: Checkpoint file "" failed during creation due to error 0x80070003 "The system cannot find the path specified.".
please note that i have no checkpoints on package anymore; i had two but i deleted them but this message still appears. i have searched the web but no luck in finding an answer.
maybe someone would be able to point out my obvious mistake here.
Hi All,I have come up against a wall which i cannot get over.I have an sql db where the date column is set as a varchar (i know, should have used datetime but this was done before my time and i've got to work with what is there). The majority of values are in the format dd/mm/yyyy. However, some values contain the word 'various'.I'm attempting to compare the date chosen on a c# .net page with the values in the db and also return all the 'various' values as well.I have accomplished casting the varchar to a datetime and then comparing to the selected date on the .net page. However, it errors when it comes across the 'various' entrant.Is there anyway to carry out a select statement comparing the start_date values in the db to the selected date on the .net page and also pull out all 'various' entrants at the same time without it erroring? i thought about replacing the 'various' to a date like '01/01/2010' so it doesn't stumble over the none recognised format, but am unsure of how to do it.This is how far i have got: casting the varchar column to datetime and comparing. SELECT * FROM table1 WHERE Cast(SUBSTRING(Start_Date,4,2) + '/' + SUBSTRING(Start_Date,1,2) + '/' +SUBSTRING(Start_Date,7,4) as datetime) '" + date + "'"Many thanks in advance!
I have few config files with db passwords in them. I have to change passwords daily into that(as my system is in UAT phase now). I have deployed my packages on SQL Server.
My question is , do I need to deploy my packages daily after password updation, or it'll automatically taken care by the SQL Server ?
hello, I am working on some maintenance process. I need a Stored Procedure to reda the contents of a file. (i.e. OS or SQL server log files). plz help me in sort out this problem.
i'm an sql server beginer. i was wondering if some of you guys can help me out. i need for the sql server to be able to read an outside file (just text) and be able to run a script that will insert it in the database. it's a dcc output file. we've tried running this script:
DROP TABLE tests go DECLARE @SQLSTR varchar(255) SELECT @SQLSTR = 'ISQL -E -Q"dbcc checkdb(master)"' CREATE TABLE tests (Results varchar(255) NOT NULL) INSERT INTO tests EXEC('master..xp_cmdshell ''ISQL -E -Q"dbcc checkdb(master)"''')
and it's running good but the problem is the results of the dbcc here did not come from a file but directly after executing the dcc command. is there a way to do it?
I would like to send the contents of a file using xp_sendmail howeverI do not want the file contents to be an attachment.I have no problem sending the file as an attachement.Can anybody give me an xp_sendmail example of how to do this.The results of a query can easily appear in the body of the email butall myattempts to include the contents of a file in the body of the emailhave not worked.TIA
I have a requirement to create a package that takes all files in a given folder and adds them to a single archive (.zip) file. I've tried several methods using 7zip and while I can create archives for every file in the directory I can't seem to get them into a single .zip file.
I would like to checkpoint my transaction log every night before full backup. Would this affect the transaction log sequence in the event of a restore.
Has anybody encountered this situation before? DB on SQL Server 2000 SP4 with trunc log on chkpt option turned on. Checkpoint trace flags were turned on but noticing no checkpoints are being done on one specific DB resulting into growing transaction log. No open transactions.
I see a line in sys.sysprocesses. The process's status is suspend and the command is CHECKPOINT. I have the information here exactly as it is on my monitor. It seems is consuming hi cpu. What should I do? [/code] spid: 10 kpid: 7416 block: 0 waittype: 0x0081 waittime: 232546 lastwaittype: CHECKPOINT_QUEUE waitresource: dbid: 1 uid: 1 cpu: 427046 physical_io: 36695 memusage: 0 login_time: 2007-04-04 10:01:32.787 lastbatch: 2007-04-04 10:01:32.787 ecid: 0 open_tran: 0 status: suspended sid:0x0100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 hostname: program_name: hostprocess: cmd:CHECKPOINT nt_domain: nt_username: loginame: sa [/code]
I have a package that uses checkpoint restart. It is resposible for truncatings many sets of tables and then loading them. There are several ExecuteSQL tasks to truncate the tables and several corresponding data flows to accomplish the loads.
If a load fails I want the corresponding truncate task to be part of the restart otherwise duplicate data may be loaded. Normally, SSIS will start at the failed task. I read something about containers that led me to think that if I put the truncate & matching load pair in a sequence container that the container would be the restart point, but either I read it wrong or it's not working that way.
With 2005 SP1. Have built a SSIS package that successfully saves a checkpoint file and sometimes successfully restarts. (I've also built some others that are 100% reliable).
On the unsuccessful restart it appears as though the failed steps and subsequent steps do not execute. the package appears to "complete" though and the checpoint file is removed as though everything is fine.
On a successful restart the failed step reexcutes and everything works fine.
The issue appears that when a failed step finishes at the same time as a successful step finishes there is contention in the process that writes the checkpoint file out and the checkpoint file is corrupt. The failing step runs in parallel with a successful step and the execution times are very similar so task A may complete before or after task B.
Contents of a good checkpoint file follows <DTS:Checkpoint xmlns:DTS="www.microsoft.com/SqlServer/Dts" DTS:PackageID="{3BFFF2F9-74BA-4CE9-8435-81CC198E8144}"><DTS:Variables DTS:ContID="{3BFFF2F9-74BA-4CE9-8435-81CC198E8144}"/><DTS:Container DTS:ContID="{3655F83D-5EA5-4F16-9B8F-520582A1229A}" DTS:Result="0" DTS:PrecedenceMap=""/><DTS:Container DTS:ContID="{DB2D7A57-D405-4B11-AF4A-41B331EE3F15}" DTS:Result="0" DTS:PrecedenceMap=""/><DTS:Container DTS:ContID="{DFC6A95F-CCFA-4FD9-B604-FCBD722B47D8}" DTS:Result="0" DTS:PrecedenceMap="YYY"/></DTS:Checkpoint>
I've set up a number of jobs (not a maintenance plan) via a script in SQL 2005. These jobs do the following:
1) Full backup every sunday night 2) Differential backup every weeknight 3) Log backup every hour
The database is obviously in the full recovery model.
The backups all seem to be running, with one issue - the log file is still growing and is not being truncated. I was under the impression that a log backup should result in the log being truncated after each full backup. However, this does not seem to be the case.
Is there anything obvious I've missed that needs to be set up, or is there a way I can check that the full backup is actually setting the appropriate checkpoint and that the log backups are 'seeing' these checkpoints?
If i have 3 Tasks in my control flow with checkpoint enabled and the transactionoption of the tasks is required,
Transaction option of the package is supported.
if the second task fails , the package restart from the first task when its running again instead of using the checkpoint and begin from the second task
I have a database that has Truncate on Checkpoint set for the Log file. The Log file is set to AutoGrow. Is it necessary to to run dbcc shrinkdb (or the like) to get Log file to contract? Is there any harm in not contracting the Log file? I'm looking for best efficiency and least-likely-to-fail path as DB sits 'really remote' and there is little opportunity for observation.
Does anyone have any recommendations on re-indexing? I have one table that bears the most growth. It has a clustered index. What would be a suitable data point to watch? I run a SP to save DBCC SHOWCONTIG info along with the duration of a test query, but haven't seen a clear breakover point.
Can anyone assist with this problem. Every now and then my overnight backups (backup Exec) fail due to the truncate log on checkpoint being enabled. This occasionally occurs on Master MSDB databases. I have unchecked the truncate log on checkpoint box numerous times and the backups work fine. Then mysteriously the box is checked again and the backups fail once more. I am stuck as to why this can happen. Is there a generic stored proceedure that checks this box ?
The log on one of my databases keeps filling up, even though I have it set to truncate on checkpoint. the only real difference between this database and the others on my server is that it is built from the dump of another database (on another server) where the tables are marked for replication.
I'm wondering if the fact it is built from a replicating database could be causing this. I've noticed I can't drop any of the table, even though my database isn't set to replicate (or publish).
two questions 1) Any ideas? 2) Is there anyway I can make my server realize I'm not replicating so it will let me drop those tables? (nothing in Enterprise manager indicates that my database is replicating or publishing).
I am DB Developer (not admin), excuse me if this is a silly question.
I don't know much about CHECKPOINT background But I feel, this process is slowing down performance of my sps which runs slower than normal in some cases.
Especially when I see any of my process goes in the suspended mode and its wait type is SLEEP_BPOOL_FLUSH and CHECKPOINTs process is also suspended and its wait type is CHECKPOINT_QUEUE.
More important anything else is... this background process (which I always find its spid is 11) BLOCKS all other user processes when it goes into suspended mode and its wait type is SLEEP_BPOOL_FLUSH
I dont know my analysis is correct (claiming checkpoint as culprit), need experts advice and help
can someone give info on checkpoint and how this effect server performance
