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vacuum_delta configuration #84

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ypma opened this issue Dec 4, 2020 · 1 comment
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vacuum_delta configuration #84

ypma opened this issue Dec 4, 2020 · 1 comment

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@ypma
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ypma commented Dec 4, 2020

#39 how configuratio vacuum_delta on datanodes

   thanks!
@q2683252
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q2683252 commented Dec 4, 2020

  1. Adjust vacuum_delta to the maxium time your sql runs in seconds.
  2. For vacuum, adjust vacuum_defer_freeze_min_age to be greater than the number of xids consumed during vacuum_delta on datanode.
    then adjust autovacuum_freeze_max_age to be at least as twice much as vacuum_defer_freeze_min_age.

@ypma ypma closed this as completed Dec 9, 2020
@JennyJennyChen JennyJennyChen mentioned this issue Dec 10, 2020
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@JennyJennyChen JennyJennyChen mentioned this issue Dec 28, 2020
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@ypma @q2683252