none
Overlapped I/O operation is in progress.

    Question

  • My Hyper-V server has stopped DFS replication.

    The error I get is DFSR event 4004:

    The DFS Replication service stopped replication on the replicated folder at local path C:\Test.
    Additional Information:
    Error: 997 (Overlapped I/O operation is in progress.)...

    The only hints I get searching Technet suggest that programs such as backup or anti-virus could hold handles on files within the folders that prevent them from being copied.  I disabled them but it didn't help.  C:\Test, in the example above is an empty folder that was newly created in DFS manager.  The error appeared immediately in the DFSR log.

    I get this for each replicated folder.  This server is Windows 2008 Server Enterprise x64.  The server I am trying to replicate with is also Windows 2008 Server Enterprise x64, but is running on a virtual machine within the previous server.  The virtual server has Service Pack 2 ß applied.  The parent server also had SP2 applied, but then SP2 was uninstalled, due to a network problem.  See: http://social.technet.microsoft.com/Forums/en-US/winserverhyperv/thread/23b8b47c-2ed7-4c4d-9d3b-b209814cc7e9.

    Does anyone know what this error really means? 

    Note, I posted the question here in General since it touches on Hyper-V, File Services, and Service Pack 2.
     

    Sunday, January 18, 2009 1:24 AM

Answers

  • Hi,

    This issue may be caused by conflicts of software. I suggest testing in Clean Boot to narrow down the cause of this issue.

    Click Start, type "msconfig", press Enter. Disable all non-Microsoft services and all startup items.

    Restart and test. Is there any progress? If not, please check if you have LiveVault Backup Service installed. If it was installed, disabling is not enough, please try to uninstall it and test.

    If this  issue continues without LiveVault Backup Service, I suggest you remove SP2 to eliminate the possibility of causing by SP2.

    If the issue occurs before SP2 and persists after removing SP2, please help to collect the following log for research.

    The MPS Reporting Tool is utilized to gather detailed information regarding a systems current configuration. The data collected will assist you with fault isolation.

    A . Please download MPS Reporting Tool (MPSRPT_PFE.EXE) from the following link:
    (http://www.microsoft.com/downloads/details.aspx?FamilyID=00ad0eac-720f-4441-9ef6-ea9f657b5c2f&DisplayLang=en)

    Please note: The link may be truncated when you read the E-mail. Be sure to include all text between '(' and ')' when navigating to the download location.

    B . Right click MPSRPT_PFE.EXE and select Run as Administrator to run this tool, and you will see a Command Window start up.

    C . Please type Y with the message of <Include the MSINFO32 report? (defaults to Y in 15 seconds)[Y,N]?

    D . When the tool is done you will see an Explorer Window opening up the %systemroot%\MPSReports\Setup\Reports\cab folder and containing a <Computername>MPSReports.cab file. After collecting, please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload the file and then give me the download address.

    Thanks.


    This posting is provided "AS IS" with no warranties, and confers no rights.
    • Marked as answer by Brian Borg Sunday, January 25, 2009 9:11 PM
    Monday, January 19, 2009 11:23 AM
    Moderator

All replies

  • Hi,

    This issue may be caused by conflicts of software. I suggest testing in Clean Boot to narrow down the cause of this issue.

    Click Start, type "msconfig", press Enter. Disable all non-Microsoft services and all startup items.

    Restart and test. Is there any progress? If not, please check if you have LiveVault Backup Service installed. If it was installed, disabling is not enough, please try to uninstall it and test.

    If this  issue continues without LiveVault Backup Service, I suggest you remove SP2 to eliminate the possibility of causing by SP2.

    If the issue occurs before SP2 and persists after removing SP2, please help to collect the following log for research.

    The MPS Reporting Tool is utilized to gather detailed information regarding a systems current configuration. The data collected will assist you with fault isolation.

    A . Please download MPS Reporting Tool (MPSRPT_PFE.EXE) from the following link:
    (http://www.microsoft.com/downloads/details.aspx?FamilyID=00ad0eac-720f-4441-9ef6-ea9f657b5c2f&DisplayLang=en)

    Please note: The link may be truncated when you read the E-mail. Be sure to include all text between '(' and ')' when navigating to the download location.

    B . Right click MPSRPT_PFE.EXE and select Run as Administrator to run this tool, and you will see a Command Window start up.

    C . Please type Y with the message of <Include the MSINFO32 report? (defaults to Y in 15 seconds)[Y,N]?

    D . When the tool is done you will see an Explorer Window opening up the %systemroot%\MPSReports\Setup\Reports\cab folder and containing a <Computername>MPSReports.cab file. After collecting, please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload the file and then give me the download address.

    Thanks.


    This posting is provided "AS IS" with no warranties, and confers no rights.
    • Marked as answer by Brian Borg Sunday, January 25, 2009 9:11 PM
    Monday, January 19, 2009 11:23 AM
    Moderator
  • Thank you for responding.

    I have uploaded the MPSReports.cab to http://cid-08ec6ef1e1795d54.skydrive.live.com/self.aspx/.Public/Phenom-Hyper-V%7C_MPSReports%7C_0901190750PM.CAB.

    The problem started after removing SP2.

    After setting cleanboot with msconfig and rebooting, the problem has changed.  It went from DFSR event 4004, Error: 997 (Overlapped I/O operation is in progress.), to DFSR event 5002, Error: 1753 (There are no more endpoints available from the endpoint mapper.).

    At least this is something I can try to diagnose.

    It seems that the Quick Heal Total Security was still causing the Overlapped I/O problem.

    If you have any quick fixes to try for RPC endpoint problems on Server 2008, please let me know.
    Tuesday, January 20, 2009 2:36 AM
  • Hi,

    It’s strange that I cannot download your uploaded file on skydrive.

    The new error may be caused by network problem. Please check the connection to make sure Network is working.

    If your environment requires Firewall or Proxy, please enable them in Startup group.

    If the issue continues, let’s try to change system settings.

    Navigate to the following key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

    Change the value of EnableRSS, EnableTCPA and EnableTCPChimney to 0. If they don’t exist, please create(they are REG_DWORD type) and change the value to 0.

    Restart and test.

    Thanks.


    This posting is provided "AS IS" with no warranties, and confers no rights.
    Tuesday, January 20, 2009 9:44 AM
    Moderator
  • I am sure it is my unfamiliarity with skydrive.  I couldn't download it either.

    I played with my skydrive pages and found that when I right clicked the file icon in http://cid-08ec6ef1e1795d54.skydrive.live.com/self.aspx/.Public/Phenom-Hyper-V%7C_MPSReports%7C_0901190750PM.CAB, I could download it.

    I don't know what changed, if anything.  I couldn't download it just a few minutes earlier.

    I tried the "Download" link and just clicking the icon and they worked also.  Go figure.

    I added registry settings you suggested.  I'll see what it after a reboot.
    Wednesday, January 21, 2009 12:50 AM
  • Hi,

    The downloading problem may be caused by temporary Skydrive server issue, let's ignore it.

    I downloaded the file and find C:\Diag is not listed in Netshare.txt file.

    Is C:\Diag a shared folder? If not, please share it. Or delete the original DFS Namespace and create a new Namespace to test.

    DFS Replication uses a staging folder to stage a file before sending or receiving it. I suggest checking the DFSR staging settings to make sure it’s not caused by large file. To do so:

    Edit the Quota Size of the Staging Folder and Conflict and Deleted Folder
    http://technet.microsoft.com/en-us/library/cc754229.aspx

    If the issue persists, please check the size of the DFSR folder.

    Thanks.


    This posting is provided "AS IS" with no warranties, and confers no rights.
    Wednesday, January 21, 2009 11:29 AM
    Moderator
  • I think that MPSRPT isn't working correctly on Server 2008.  There were error messages about dll incompatibilities.  C:\Diag is shared as Diag, and is available under DFSRoot\Diag.

    C:\>net share  
     
    Share name   Resource                        Remark  
     
    -------------------------------------------------------------------------------  
    ADMIN$       C:\Windows                      Remote Admin  
    C$           C:\                             Default share  
    V$           V:\                             Default share  
    print$       C:\Windows\system32\spool\drivers  
                                                 Printer Drivers  
    IPC$                                         Remote IPC  
    D$           D:\                             Default share  
    CertSRV      c:\CertSRV  
    ClientApps   C:\ClientApps  
    Clients      C:\Clients  
    DFSroot      C:\DFSRoots\DFSroot  
    Diag         C:\Diag  
    Download     D:\Download  
    NETLOGON     C:\Windows\SYSVOL\sysvol\Borg.local\SCRIPTS  
                                                 Logon server share  
    ProfileRoot  C:\DFSRoots\ProfileRoot         Caching disabled  
    Profiles     C:\Profiles                     Caching disabled  
    SYSVOL       C:\Windows\SYSVOL\sysvol        Logon server share  
    Test         C:\Test  
    UserData     C:\UserData  
    Videos       D:\Videos  
    HP PSC 950   DOT4_001               Spooled  HP PSC 950  
    The command completed successfully. 

    I'll try a new namespace instead of just a new DFS folder.  I also have a new Server 2008 R2 virtual machine to try it with.  I'll also look at quota sizes.
    Wednesday, January 21, 2009 5:54 PM
  • It seems that replication is now working.  A few minutes after the RPC endpoint errors, I get DFSR 5004 events (Information) saying that inbound connections have been established.

    I copied files to my empty Test folder on two different servers.  Each file was replicated to the other server.  I also installed DFS on a new Windows 2008 R2 server and created a couple of folder targets on this server.  The targets replicated.

     I didn't try a new namespace yet, since replication is now working.

    Sunday, January 25, 2009 1:27 AM