> When you have so many writes that sharding isn't enough. Does Mongo still ... | Hacker News

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lwat on Oct 17, 2012 | parent | context | favorite | on: Things I wish I knew about MongoDB a year ago

> When you have so many writes that sharding isn't enough.

Does Mongo still have a global write lock?

elchief on Oct 18, 2012 [–]

no longer (but only a few months)

mgummelt on Oct 18, 2012 | [–]

Though I believe it still has a per-collection lock.

Jare on Oct 18, 2012 | | [–]

It has per-database locking. Per-collection is being worked on but no planned date yet. [1]

[1] http://www.mongodb.org/display/DOCS/How+does+concurrency+wor...

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