MongoDb: Add index used when querying for all events for an aggregate type #65
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Reason:
The index is needed when using this api call:
store.getEvents({aggregate:'my-aggregate', skip, limit, cb)
(the values of skip and limit don't matter)
The query above is handled by this call to mongodb client:
this.events.find(findStatement, { sort: [
['commitStamp', 'asc'],
['streamRevision', 'asc'],
['commitSequence', 'asc']] }).toArray(function (err, res) {
https://github.com/adrai/node-eventstore/blob/v1.7.3/lib/databases/mongodb.js#L327
Without the index, MongoDb has to sort in memory, which works fine for
few events, but with enough events you'll hit the ceiling and get this
error:
> Plan executor error during find: Overflow sort stage buffered data
> usage of 33554808 bytes exceeds internal limit of 33554432 bytes
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Reason
The index is needed when using this api call:
(the values of skip and limit don't matter)
The query above is handled by this call to mongodb client:
https://github.com/adrai/node-eventstore/blob/v1.7.3/lib/databases/mongodb.js#L327
Without the index, MongoDb has to sort in memory, which works fine for few events, but with enough events you'll hit the ceiling and get an error, like this: