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CouchDB Compaction: Lessons Learnt

  • Compact regularily - but only if the amount of free space on your drives is greater than the size of your biggest database. This is a hard limit that your “capacity planning” must take into account
  • It can save you a lot of space
  • It will heavily load your servers - perhaps for quite a while
  • Tell your ops crew that this will happen and that they can expect this sort of load

Make sure to read the rest of the article as it provides quite a few interesting metrics.