SQL 2014 Failover cluster - Nodes on different patch levels












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As part of trouble shooting a performance issue with a SQL cluster. Found out that the Nodes haven't been patched properly to the same level. It is 2 node active / passive cluster. SQL performance was much better on node with higher patch level.



The Nodes have been patched to the same level now.



Just trying to understand how SQL and the would have behaved in this sort of a scenario.?
Would this patch level miss match have caused other issue with the cluster?










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    0















    As part of trouble shooting a performance issue with a SQL cluster. Found out that the Nodes haven't been patched properly to the same level. It is 2 node active / passive cluster. SQL performance was much better on node with higher patch level.



    The Nodes have been patched to the same level now.



    Just trying to understand how SQL and the would have behaved in this sort of a scenario.?
    Would this patch level miss match have caused other issue with the cluster?










    share|improve this question

























      0












      0








      0








      As part of trouble shooting a performance issue with a SQL cluster. Found out that the Nodes haven't been patched properly to the same level. It is 2 node active / passive cluster. SQL performance was much better on node with higher patch level.



      The Nodes have been patched to the same level now.



      Just trying to understand how SQL and the would have behaved in this sort of a scenario.?
      Would this patch level miss match have caused other issue with the cluster?










      share|improve this question














      As part of trouble shooting a performance issue with a SQL cluster. Found out that the Nodes haven't been patched properly to the same level. It is 2 node active / passive cluster. SQL performance was much better on node with higher patch level.



      The Nodes have been patched to the same level now.



      Just trying to understand how SQL and the would have behaved in this sort of a scenario.?
      Would this patch level miss match have caused other issue with the cluster?







      sql-server clustering






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      asked 5 hours ago









      Halt_And_Catch_FireHalt_And_Catch_Fire

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          Well that can be possible depending upon which patch you applied. If you refer to Microsoft documentation for the versions, you will see the description of what's different between those 2 patch builds . For example 2014 SP3 have some performance gains compared to SP2. Again it might be possible because of different patch but performance gain include various other factors as well. If you share more details like what improvements you see might help further.






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            Well that can be possible depending upon which patch you applied. If you refer to Microsoft documentation for the versions, you will see the description of what's different between those 2 patch builds . For example 2014 SP3 have some performance gains compared to SP2. Again it might be possible because of different patch but performance gain include various other factors as well. If you share more details like what improvements you see might help further.






            share|improve this answer




























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              Well that can be possible depending upon which patch you applied. If you refer to Microsoft documentation for the versions, you will see the description of what's different between those 2 patch builds . For example 2014 SP3 have some performance gains compared to SP2. Again it might be possible because of different patch but performance gain include various other factors as well. If you share more details like what improvements you see might help further.






              share|improve this answer


























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                0







                Well that can be possible depending upon which patch you applied. If you refer to Microsoft documentation for the versions, you will see the description of what's different between those 2 patch builds . For example 2014 SP3 have some performance gains compared to SP2. Again it might be possible because of different patch but performance gain include various other factors as well. If you share more details like what improvements you see might help further.






                share|improve this answer













                Well that can be possible depending upon which patch you applied. If you refer to Microsoft documentation for the versions, you will see the description of what's different between those 2 patch builds . For example 2014 SP3 have some performance gains compared to SP2. Again it might be possible because of different patch but performance gain include various other factors as well. If you share more details like what improvements you see might help further.







                share|improve this answer












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                answered 4 hours ago









                KASQLDBAKASQLDBA

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