CODEWITHSUNDEEP
mongodbindexing
andy boot
andy boot

Reputation: 11737

Rebuilding indexes in Mongodb

I'm reading about Mongodb's indexes for my Mongodb project

I am well aware that inserting data into a traditional relation database would cause a large slow down if the table was very large as the indexes are rebuilt.

If I choose to add indexes to Mongodb collections: Is rebuilding an index in Mongodb roughly as expensive as rebuilding an index in a traditional relational database? or does the fact that it uses a B-Tree for indexing improve rebuild time?

Upvotes: 2

Views: 4027

Answers (2)

Ravi Khakhkhar
Ravi Khakhkhar

Reputation: 1964

In MongoDB, as in other RDMBS, once you build an index, subsequent inserts, deletes, and updates will be slowed down.

The process of rebuilding is handled by MongoDB itself, but you can force a manual rebuild using db.myCollection.reIndex().

Upvotes: 3

Karoly Horvath
Karoly Horvath

Reputation: 96266

Rebuilding an index is just as expensive in Mongodb.

Note: traditional databases also use B-Trees.

Upvotes: 0

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