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Problem with SQL Server when Query Analyzer is run at the actual SQL server

We have a very peculiar situation.  

At the actual SQL Server when we run the Query Analyzer we found that it doesnt connect, it stays idle.  ALso no users can connect to thier apps.  Finally, the Entreprose Manager didnt also respond.

We have SQL 2000 server with the latest service pack 4 running under Windows Server 2003.

What can be causing this?
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rayluvs
Asked:
rayluvs
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3 Solutions
 
rayluvsAuthor Commented:
Here are the error messages that was the result of our problems:

After a while trying to start Query Analyzer:

        [Microsoft][ODBC SQL Server Driver][Shared Memory]SQL Server does not exist
        or access denied

At the Event Viewer:

        Level:            InformaciĆ³n
        Source:         MSSQLSERVER
        Event ID:       17052
        Description:   Error: 17883, Severity: 1, State: 0
        Process 10:0 (770) UMS Context 0x002FA090 appears to be non-yielding on Scheduler 1

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Eduardo GoicovichIT ConsultantCommented:
be sure that tcp/ip protocol is enabled and the server not to be in single user (emergency) mode
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rayluvsAuthor Commented:
All is working now and we think we know what possibilly fixed the problem.  We would like to know EE expierenxe advise on what happened.  Here is the info:

- Prior the problem the user was trying to restart the server
   and at the first try, it said it had an update to install
-  User kept trying restart but couldn't so he press the on/off
    server button until it turned off
-  Also prior shutting down, the server had 1 gb disk space
    and was optiniE to 3 gb available (server is 2gb ram)
-  Finally, the server paging settings was modified to
    Custom size of initial 3072 and max 3072 and also
     Adjusted for best performance, "background services"
     selected

We think it was the last restart that permited to dix the problem.

Please, your opinions.
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Eduardo GoicovichIT ConsultantCommented:
some security updates (OS or database engine) need a server restart to working properly, because shared libraries need to be free from memory to load the new ones (after reboot). In some cases, a database security update needs to change server access to make wide changes and drop any existing client connection. If for any case, after updates get applied, database server doesn't get online again, force a reboot can be the cure. But, any update procedure on producction server must carry out a previous system and user database backup
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rayluvsAuthor Commented:
So you think that it may have  been update that it has to have a reboot done?
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Eduardo GoicovichIT ConsultantCommented:
the windows update log register all activities performed (default dir %windir%\Windowsupdate.log)
to see the description of this, you can review to the next link
http://support.microsoft.com/kb/902093/en-us

you can check if reboot needed by the update (example line)

2005-06-02      12:11:01      3348      70c      Handler        : Command line install completed. Return code = 0x00000000, Result = Succeeded, Reboot required = true


for hotfixes is %windir%

http://uekb.shavlik.com/updateexpert/troubleshooting/Tasks/UE0212.htm

other logs

http://www.hsc.fr/ressources/articles/win_log_files/index.html.en


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rayluvsAuthor Commented:
Thank you very much.  This last post helped a lot!
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rayluvsAuthor Commented:
Thanx
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