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Microsoft Dynamics CRM (Archived)

CRM breaking around 3:30am every night. Please help!

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I am having issues with our CRM on premise going down at the same time everyday.  I have reviewed the Event logs on all 3 of our CRM servers (crmadfs, crm, CRMSQL) and nothing looks out of the ordinary as far as I can tell.  I have also looked at the SQL logs and found nothing that jumps out at me.  Would someone be willing to help and give me some other areas to look for issues?  Please let me know if you need anything from me to help you better understand what's going on.  I have included a few of the logs below.  The outage normally lasts about an hour.  What's throwing me off is that these events I'm getting don't stop when the CRM comes back up.  So I'm just lost at this point.  Please help!

Microsoft Dynamics 2016 

(8.1.0.359) (DB 8.1.0.359)

EVENT ID's I'm getting on CRM server close to down time:  26234 MSCRMEmail, Lots of 17415 MSCRMAsyncService, 1309 ASP .NET 4.0.30319.0, Lots of 24066 MSCRMPlatform

EVENT ID's I'm getting on CRMSQL server close to down time:  1202 SceCli, 4098 Group Policy Services

EVENT ID's I'm getting on CRMADFS server close to down time:  Lots of 17137 MSSQL$MICROSOFT##WID, 1202 SceCli, 64 CertificateServicesClient-AutoEnrollment

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  • Suggested answer
    Arpit Shrivastava Profile Picture
    7,518 User Group Leader on at
    RE: CRM breaking around 3:30am every night. Please help!

    Hi Ryan,

    Could you please check is there any Scheduled Job/Bulk Record Create/ Bulk Deletion Job running at this particular time?

    Or is there any data syncing being done from any external application to your CRM application at this time frame, which is triggering any Synchronous plugins and being caused of consuming the resources and slowing down the CRM performance ?

    Try to check the SQL maintaining plans too. I suggest reviewing the SQL Logs too.

    Also, refer below articles. Hope it helps.

    https://dynamicscrmpros.com/mscrmasyncservice-errors-in-the-event-log-of-microsoft-dynamics-crm/

    https://support.microsoft.com/en-in/help/968520/performance-is-slow-if-the-asyncoperationbase-table-becomes-too-large

    If you find the answer useful, please mark it as verified

    Cheers
    Arpit
    https://arpitmscrmhunt.blogspot.in

  • Suggested answer
    gdas Profile Picture
    50,091 Moderator on at
    RE: CRM breaking around 3:30am every night. Please help!

    Hi Ryan,

    I am not sure you have any schedule jobs or batch process which is running on your Application server during that time. So check that and try to check  in the task manager of windows server during that period.

    In my recent experience I have also faced similar kind of issue and we found that there was an antivirus scan process is running in the windows system which was causing slow performance.

    Check the disk space of your CRM application server  ,sometimes this is also cause for slowness.

    Let us know if its does not help.

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