convertToCapped to be optional

[muz3]

Hi Matt,

Can you please let me know why we are forcing the convertToCapped here? I know it provide you certain level of benefit over performance, but in some cases, I would like to have it be uncapped. Is there a way to achieve right now?

thanks,

Rui ` function waitStartup () { that._collection = that._db.collection(opts.collection) that._collection.isCapped(function (err, capped) { if (that.closed) { return }

  if (err) {
    // if it errs here, the collection might not exist
    that._db.createCollection(opts.collection, {
      capped: true,
      size: opts.size,
      max: opts.max
    }, start)
  } else if (!capped) {
    // the collection is not capped, make it so
    that._db.command({
      convertToCapped: opts.collection,
      size: opts.size,
      max: opts.max
    }, start)
  } else {
    start()
  }
})

}`

[mcollina]

That collection is internal and should not be used. Why would you like it to be uncapped?

[muz3]

Thanks for your reply. I might it used it incorrectly of this library. I am trying to store all incoming messages for a particular topic, then later I can replay all them. I can overwrite collection, size and max, but just want to see if there is option to uncap. Looks like this library is used as buffering for 'LAST Retained' purpose in 'aedes-persistence-mongodb'.

[mcollina]

I do not think you are using this correctly.