db lock problem

[chenshangan521]

http://www.mongodb.org/display/DOCS/How+does+concurrency+work

 

from this slice, I see current lock is global, does it mean any write will acquire a lock on all databases ?

I drop a database, it lasts about 3 minutes, during this period all reads are blocked, these reads are query data from other databases. I don't know why writes in one db will affect other dbs. 

 

 

 

2011-07-12

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chenshangan521

[axlfu]

On Jul 12, 11:04 am, "chenshangan521" <chenshangan...@gmail.com>
wrote:

> http://www.mongodb.org/display/DOCS/How+does+concurrency+work
>
> from this slice, I see current lock is global, does it mean any write will acquire a lock on all databases ?

Yes

> I drop a database, it lasts about 3 minutes, during this period all reads are blocked, these reads are query data from other databases. I don't know why writes in one db will affect other dbs.

pls watch (or vote) this issue
https://jira.mongodb.org/browse/SERVER-1830

>
> 2011-07-12
>
> chenshangan521