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Retentive Refresh

sjyusjyu
in General Discussion

I just saw a make_ahm_now() statement fail with the error "AHM can't be set while retentive refresh is running."

 

What exactly is a retentive refresh?

Comments

  • SruthiASruthiA Vertica Employee Employee

    Hi,

     

          Retentive refresh is used if projection has up to date buddy projections. When retentive refresh is running, you cannot advance AHM.

     

     

     

    Thank you,

     Sruthi

  • sjyusjyu

    Hi Sruthi,

     

    Thanks for the reply!  How often do these refreshes run?

     

    Thanks,

     

    --Steven

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