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if resources fails, attempt restart on current node RRS feed

  • Question

  • Period For Restarts

    Maximum Restarts in the specified period

    I am struggling to find anything that explains what this functionality means.

    If I set the maximum restarts to 3, then does the cluster try to start the affected service 3 times before failing over?  Do these 3 restarts happen immediately after each other, or is there some wait time built in?

    How does the Period for restarts impact on the activities?

    Thursday, October 3, 2019 12:38 PM

All replies

  • A failover is a 'heavier' lift than a local restart.  In other words, it generally generates a greater resource interruption than a local restart.  Cluster engineers found that restarting locally provided a better overall experience through fewer interruptions.  Show they set up this parameter to allow for the local restarts before assuming it needed to failover to another node due to repeated failures on a local restart.

    So, yes, if you set the maximum restarts to 3, the cluster tries to restart the service three times on the local node before it will fail the service to another node.  The restart happens after the failure of the service.  If upon restart of the service, it immediately fails, then, yes, another restart would be attempted.

    Not sure what you are asking about the 'period of restarts impact on the activities'.  Normal cluster processing is occurring.  During service restart service is unavailable, but most likely for a shorter period of time than would happen for a service failover.


    tim

    Thursday, October 3, 2019 1:27 PM
  • Hi,

    Thank you for posting in forum!

    Open failover cluster manager, right click the affected resource, click propertiesclick policies tab, you will see the following picture.

    >> If I set the maximum restarts to 3, then does the cluster try to start the affected service 3 times before failing over? Do these 3 restarts happen immediately after each other, or is there some wait time built in?

    For example, if you specify 3 for Maximum restarts in the specified period and 15:00 for the period, the Cluster service attempts to restart the resource three times in a given 15 minute period. If the resource still does not run, instead of trying to restart it a fourth time, the Cluster service will take the actions that you specified in the other fields of this tab (fail over the resources).  

    >>  Do these 3 restarts happen immediately after each other, or is there some wait time built in?

    As you can see in the picture, you can set delay between restarts. In this case, it is 0.5 second.

    >> How does the Period for restarts impact on the activities?

    What did you mean about activities ? As far as I know, During restart, the cluster service is not available, but other services on your computer should not be affected.

    Hope this can help you, if you have anything unclear, please let me know.

    Best Regards,

    Lily Yang


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    Friday, October 4, 2019 5:37 AM
  • Hi,

     

    Just checking in to see if the information provided was helpful.

    Please let us know if you would like further assistance.

     

    Best Regards,

    Lily



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    Monday, October 7, 2019 5:33 AM
  • Hi,

     

    Was your issue resolved?

     

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    If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.

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    Best Regards,

    Lily


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    Wednesday, October 9, 2019 5:34 AM