SQL Server becomes unresponsive with an error message

  • We are using SQL Server 2005 SP2 (9.00.3257.00). At times it becomes unresponsive. The even log is showing the following error messages.

    "The client was unable to reuse a session with SPID 86, which had been reset for connection pooling. This error may have been caused by an earlier operation failing. " ,

    "There is insufficient system memory to run this query.".

    Does anyone have any idea about this?

  • look this kb

    http://support.microsoft.com/kb/937745/en-us

    a tink is verry similar

  • I did put in SP3 yesterday into the SQL Server box. It is still happening, but this time there is no error in Event Log, but the error is in SQL Server Error Logs, the error is

    "[298] SQLServer Error: 258, Unable to complete login process due to delay in prelogin response [SQLSTATE 08001]"

    "[165] ODBC Error: 0, Login timeout expired [SQLSTATE HYT00]"

    "[298] SQLServer Error: 258, Shared Memory Provider: Timeout error [258]. [SQLSTATE 08001]".

    When this happened I was unable to get into SQL Server using SMO also.

    Does any one know why this is happening?

    Also is there any way I can monitor how much memory each session in SQL Server uses?

  • look this KB

    http://support.microsoft.com/kb/934751/en-us

  • I looked into the article. We don't have so many sql users in the system. Also I'm not just getting this error using SMO. This error is happening for applications also.When this happens no apps/reports/users can be able to access the database.

    Anyways thanks for the kb.

  • maybe call microsoft support.

  • I have the same problem. In my case it is not a SQL problem but a script that is run and not commited. One of our processes runs the script but because of bad coding inside the transaction it fails and the transaction is not commited. This causes a ripple effect,by locking more and more systems, until the SQL server generates the following error "All schedulers on Node 0 appear deadlocked due to a large number of worker threads waiting on CXPACKET. Process Utilization 0%." and then switches the Service broker off if the problem is not sorted out.

    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    Do not reinvent the wheel.
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

  • Look at the thread below

    http://www.sqlservercentral.com/Forums/Topic585961-360-1.aspx

  • Hi Journeyman,

    We are facing the same problem that you had faced. SQL server becomes unresponsive at high concurrent connections. We have SP3? Were you able to find solution to the issue.

    Thanks a lot for your help

    Regards

    Amit

    pmohan (4/1/2009)


    I looked into the article. We don't have so many sql users in the system. Also I'm not just getting this error using SMO. This error is happening for applications also.When this happens no apps/reports/users can be able to access the database.

    Anyways thanks for the kb.

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