Unusually High CPU On SQL Server The 2nd Day After A Reboot.
Jul 23, 2005
To All,
I have a SQL2KSP3a database(<1GB) running on a 4x3GB physical CPU with
4GB of ram. It is Windows Server 2003 with hyper-threading turn on.
There are ~420 .Net users/cxns (fat client, no web/app servers) with
connection pooling and ~1 trx/sec. The database growth is neglegeable
and actually is not even relevent which I will explain in a minute.
99% of the trxs are from one SP that does a select. The resultsets are
relatively small as well 1~100 rows. Yes I have tuned it with index
tuning wizard as well, changed the SQL memory configurations, etc....
My problem is this...
The first day after a reboot, the server runs 6%CPU during peak hours.
During the non-peak hours until the next day something apparently
happens. The next day (2nd day after a reboot), it jumps to 40%CPU
during peak hours. The server will continue to run at 40%CPU during
peak hours until the next reboot. This phenomenon has been occurring
for 6 months or more and the traffic on the server is the same for day
1 as it is for day 2,3,4,... This database was on another server with
100+ dbs and exibited the same behavior, thus bringing that server to
its knees, and thus we had to move it to the server in question with no
other dbs.
I have googled my eyes out, Microsoft site, white papers, perfmon,
SQLDiag, PSSDiag, execution plans, index tuning wizard, and the list
goes on! I currently have a case open with Microsoft that has been
open for months now. I have been passed around to the 3rd "MS Tech
Specialist". I have ran PSSDiag a total of 6 times for them for hours
on end. I have changed MAXDOP. I could give more information, but I
would be here for days. I am running out of patience/ideas and
Microsoft is apparently blowing smoke.
Any ideas are greatly appreciated!
Thanks in advance!
JL
Hello,I have a Win2K3 Server with SS2005 developers edition. I am working on aWindows XP Pro workstation which has SQL Server 2000 installed as well asthe SQL Native Client. I'm using an MS Access ADP to connect to the serverand for some reason it's extremely slow, even to the point of throwing timeout errors and "can't generate SSPI context" messages. I've hit the MSwebsite and found info on the SSPI error, but none of the items thatgenerate the error apply to my situation. I've tried using the surface areamanager to change the connection to name pipes, name pipes and tcpip etc,but no luck.Is there anything I should be looking at or any known issues that wouldaffect this kind of performance?Thanks!Rick
SQL Server 2008, Tempdb ("ReportServerTempDB")of the report server is growing enormously over 20gb in 3 days. All our reports drive from stored procedures which is a different server from Reportservertempdb. We have no report subscriptions.
We store no snapshots. All we do is run the reports.
I don't know where I start to investigate the issue.
Is there a way to configure mirroring to go from High Availability to High Protection without having to reconfigure Database Mirroring? Using the interface in Management Studio, I can change the configuration option to High Performance, but not High Protection despite both of them being Synchronous.
If not, what are the recommended steps to configure the mirror once it already has been configured? Is just like initially setting up the mirror or would there be any shortcuts I could take? If I stop the mirroring and remove the witness, will the High Protection option be available?
I realise this is a stupid quesiton but i cannot really find any confirmation of this in BOL.
If you are running High Safety with automatic failover, when failover occurs does this automatically change to High Performance mode. SInce for failover to occur something has happen with the primary , it will be impossible to commit transactions on the new primary and mirror asyncronously since 1 of them is no longer available.
So am i correct in assuming that automatic failover also automatically changes the mode to High Performacne for that session?
I'm very new to SQL Server. I need to reboot the server for some reason. I need your help to list out what a the step that I need to follow to perform this process.
Hello,I have a server running Windows 2000 Advanced and Sql Server. Thesystems runs fine throughout the day but reboots at night, somtimesmultiple times. The event log has a message that reads "The previoussystem shutdown at X:XX PM was unexpected."Any ideas?Paul
We have to add some hardware and I was wondering if someone could provide a stepwise tip to do it .
It is a 3 Server Environment Pub/Dist/Sub All three running under SQL2K Here is what I am planning.
a. Uncheck the Enable in Distributed Agent for each replication b. Wait for all replications to complete c. Shut down Publisher ? Or do I have to do something else before that.
An IT dept. I have been consulting with has started to reboot SQL server every night. They are saying that this is the best practices. I would like to know if anyone has any other ideas on this subject. What is the best practices for how often a SQL server should be rebooted, daily, weekly, monthly ... ?
I have transactional replication set up between two dedicated servers. Server A is the PDC and Server B is a BDC (they are both Win2000 boxes). Both the servers are brand new, and replaced the two that were running like clock work (replication wise) for the last 12 months. I never had this problem with the old servers....
When the servers are shut down (as the case was a couple of weeks back with a power failure) or just recently when they were move to another room. Both servers boot up at the same time. Server B (which is the server holding the db being replicated) boots quicker and as a result replication fails and is then 'sucessfully stopped'. Unless I am aware of the server being rebooted and can monitor this potential problem, within 2 days the logfile grows to large and everything comes to a crashing halt.
I just remove replication, truncate and shrink the log, reset replication and we're away.... BUT I really need to know why it is happening in the first place. I figure there must be a setting that I have forgotten about or something.
If I am running SQL Server 2005 in a clustered environment, what is the safest way to restart the SQL server agent? It is currently running but I need to restart it for maintenance purposes.
Is the safeway way to restart is to login to the SQL Server Management Studio as the system administrator, select the SQL Server Agent object, right-mouse click and select "Restart?"
How many times per year should we schedule time to reboot a SQL Server 2005 Cluster? We want to do this to defrag the memory. What I am looking for is a document from Microsoft or a consulting firm that has a good reputation that I can show my manager.
I am searching for a Powershell script which picks Windows Server names from SQL server table(eg: Instance.DB.tbServerList) & writes last reboot date to SQL server table(can be same or different table).
Sorry i think i may have posted this in the incorrect forum before - if i have done it again here can someone tell me where i should post this please, thanks:
Hi, we are having problems with a server Intel RZeon 3ghz, 3gb ram running 2003 service pack 2 with a 70gb drive and and 400 gb drive all with adequate free space. There are 6 hard disks in total and i assume operating at least RAID 5. We have SQL2000 server with a few standard sized databases and a connection to one other server.
A few months ago the back up of SQL server databases started taking 4- 5 hours when before it took 20 minutes. We had actually lost one of our disks in the RAID array and it before this was spotted by our engineers we reindexed the sql databases and defragged both 70gbC: and D: 400gb drives hoping to correct this slow down. Unfortunately the new disk had not been correctly seated and this was why it was taking 4-5 hours. After fixing the disk the backups took 12 minutes again but then started taking 2-3 hours after a few days.
The reindex/defrag did seem to improve the speed of the backups to 12 minutes (from 20 minutes) when the backup did function correctly (also the sql databases' performance improved). However the backups only take 12 minutes after a server reboot - this can last from only 2, up to 5 backups(days) in a row before a slow down to 2-3 hours and again only a reboot will sort out this problem.
NB this intermittent slowdown only occurred after the disk failure.
We have tried monitoring SQL server and can find no CPU/RAM intensive clashes or long running jobs interferring with the back up. Does anyone know what might be going on here? and if there are any server monitoring tools that may help us discover what is causing this problem ?
I have a situation that I was wondering if anyone has ever ran into before. It has to do with one of my MS SQL servers. The hardware is a ALR/Gateway 9000R with 4 PP200's, 1 Gb RAM, and a RAID 5 with 72 Gb storage. The NIC card is an ATM 155 Mbit card connected directly to our fiber backbone.
I have WinNT 4.0 Server Enterprise Edition loaded with SP4 and MS SQL Server 6.5 Enterprise Edition with SP5 installed.
I have 7 seperate active databases on the server supporting 7 different applications. The server has been on-line for approximately 4 weeks and just recently (last Thursday) it has started to "lock up" every couple of days. By lockup I mean that it starts to reject all requests by all users. No one can connect to the server including myself. The MS SQL error log grows and grows until we reboot the server. The error logs are 100 Mb or larger in size due to rejection errors being repeated over and over again.
There has been no change made to the server since initial installation.
The error in the MS SQL error log that keeps on being repeated is... "Message 17308: Kernelerror - Lazywriter. Process (process ID number) generated access violation; SQL Server is terminating this process."
We have an incident in with Microsoft but they are not responding fast enough.
I was hoping that someone out there may have had this type of occurrance happen before.
Hi All,I have a SQL Server 7 installation running on a windows 2000 server.SQL Server switches from mixed mode authentication to Windows Only onreboot. Has anyone else experienced this? Any help would be greatlyappreciated.Service Pack Reports:Microsoft SQL Server 7.00 - 7.00.1077 (Intel X86) Sep 6 200215:10:15 Copyright (c) 1988-2002 Microsoft Corporation StandardEdition on Windows NT 5.0 (Build 2195: Service Pack 3)I only see two strange entries in the log:2004-05-01 00:38:09.55 spid37 Using 'xpsqlbot.dll' version'1998.11.13' to execute extended stored procedure 'xp_qv'.2004-05-01 00:38:01.71 spid1 Failed to obtainTransactionDispenserInterface: Result Code = 0x8004d01bI don't believe that either of these are related to the configurationoption for Windows Only, though.
This computer gets set to autostart the SQL Server Service, which is set to local, (have also tried local network and user specific), and everything works fine. But when it gets rebooted, the service refuses to start.
We disabled the Mcafee and Windows firewall. No effect.
The SQL Browser and Full Text Index Services start automatically just fine.
Hello, SQL Server 2000 services getting stoped automatically when system get reboot. When system reboot they started and after 5 minutes they were getting stoped. I went through the event log file and found that an error is occuring in sql server with number 17148.
And I also observed that there is a file called "C : P r o g r a m F i l e s V E R I T A S B a c k u p E x e c N T b e n g i n e . e x e" is executing during the maintenance process,which is stopping the sql server services(agent and olap)
This problem is generating error in sql server with above mentioned number.
I do not understand why an SSAS cube disappears after a reboot. We schedule a reboot for our server weekly and after the reboot. I have to deploy my SQL server Analysis Database. It is just gone after a reboot and why this happened. I searched a lot on internet but it seams that I am the only one on this world with this issue.
How I can configure the server in such a way that the SSAS cubes will not disappear after a reboot.
Hi I've got a sql server 2000 database that when running is runnign fine. About 9 months ago I altered one of the stored procedures and ever since then when the machine is rebooted the stored procedure is "reverted" back to the old sproc... ??? is there any way I can recrete a sproc in a job that runs every day?? why would it be doing this?
Any command through that can I delete/disable the DWORD value "Pendingfilerename operations" so that while I start the SQL Install work, it does not fail due to this and can write this as one of the precheck options.
Have a production server, 12 Enterprise, and we are adding a new app to an existing instance. Next app needs SSRS and that was not put in the install request a year ago for the instance.
I do not think a reboot is required but have been wrong before. There are no SPs applied to this server and only last week we were given go ahead from one app vendor to apply SPs. That would have been done in monthly maintenance cycle next weekend. Our test server is doing just fine with all apps on SP1.
We have several Sql Server 2014 AlwaysOn Availability Groups set up in our test lab and use a combination of SCDPM and Maintenance Plans to back up the databases in them.
Our applications always work well regardless of which of the physical servers are, at any given time, designated the "Primary" for a database. Automatic failover works fine.
There are other applications, such as SQL Server built-in backup and System Center DPM that only work properly when the databases are currently hosted where originally intended.
During the normal course of Windows Updates, etc., machines will occasionally be rebooted in the middle of the night. When they come back up, we would like them to "reclaim" the databases that properly belong to them, in an orderly fashion of course (when the "Synchronization State = Sychronized"). We have lots of these test servers and we do not have staff watching the servers in the middle of the night.
hi,we are having this weird problem that can be reproduced easily on 2out of 2 servers where we've tried:- we run a SQL Server 2000 stored procedure that processes 2.5 millionrows (big procedure with many cursors)- when it hits an area of procedure (not always the exact same place,but in the same area) , the server rebootsI've tried to debug the problem but:- there are no event log except when it restarts to say 'previoussystem shutdown unexpected'- the blackbox trace I've created is empty- the perfmon log stops a few seconds before the reboot and shows noout of whack counter- we've had the hardware checked by an IT guy and everything looksfineThe only thing we can see that might have changed is that the disksand data files were reorganized ..but that's on one machine. On theother machine were we copied the database to test, we did not do thatand it still rebooted.I've also run DBCC CHECKDB and everything looks fine. I've scanned allthe hard drive for bad sectors. We've tested the CPUs for overheating.I've monitored the virtual memory to make sure there was enough.Any help will be appreciated, we are out of ideas!!thanksGuillaumeps: we are using win2000/SP4 and SQLServer 2000 SP3
For the last week, our production SQL server is running very slow and causing the CPU usage to go 80-100 % almost all the time. This causes certain queries to time out. Our application has never timed out before ever. Also, we did not do any updates on our production machine or installed anything recently.
Has anyone of you ever experienced this issue? If yes, then what did you do to resolve it? any help would be greatly appreciated.
I have a 2003 server with sql 2005 on it and the sqlservr.exe is using 880 meg of memeory and it will climb to 1.4 gig. if i reboot server it will go back to 100 meg and slowly climb back up. any ideas i am not a sql guy.
We have a live server that has had very high CPU usage in the last few days, therefore the site is extremely slow. There are about 60,000 users per day on the average. It always had high CPU usage, but not as bad as in the last few days, in the 90s, sometimes even reaching a 100.
Any solutions? I've run SQl Profiler to check on queries that have high CPU usage. When I run the same queries on our staging server, they are very quick. For example, the same query can take 1 minute on stage, but 12 minutes on the live site. We do know that this is also related to traffic, during lower traffic times, the same query takes less time, but still never as fast as stage.
Oh yeah, it's SQL Server 2005 and asp code running IIS6 on windows 2003 server.
Please help. I really appreciate any advice. Thank you.
I've been asked to look into the possibility of using SQL Server in a high availability environment. We have a few web based applications that use SQL Server back end DBs. What we are looking into is whether we can use multiple instances (on multiple physical servers) of SQL Server using some type of clustering/load balancing. I haven't worked with SQL Replication before, so I'm not even sure where to start in exploring the possible avenues we can explore.
Can anyone push me in the right direction? Any info would be greatly appreciated!
