how to get storageSize from pymongo?

[kuer]

Hi, all,

In mongo shell, command "db.mycollection.storageSize()" can get
storage size about mycollection.

How to do that in pymongo ?

thanks

-- kuer

[Eliot Horowitz]

All things like this are commands.
This one for example:

from pymongo.connection import Connection
connection = Connection()
db = connection["test"]
print( db._command( { "collstats" : "foo" } ) )

Also, in general you can always do:
> db.mycollection.storageSize
function () {
return this.stats().storageSize;
}
> db.mycollection.stats
function () {
return this._db.runCommand({collstats:this._shortName});

[kuer]

Thanks Eliot.

but it does NOT work.

>>> print( db._command( { "collstats" : "foo" } ) )

Traceback (most recent call last):
File "simple_demo.py", line 79, in ?

print( db._command( { "collstats" : "foo" } ) )

File "/home/s/apps/mongodb/lib/python/pymongo/database.py", line
190, in _command
raise OperationFailure("command %r failed: %s" %
pymongo.errors.OperationFailure: command {'collstats': 'foo'} failed:
ns not found

>>> print( db._command( { "collstats" : "storageSize" } ) )

Traceback (most recent call last):
File "simple_demo.py", line 79, in ?
print( db._command( { "collstats" : "storageSize" } ) )
File "/home/s/apps/mongodb/lib/python/pymongo/database.py", line
190, in _command
raise OperationFailure("command %r failed: %s" %
pymongo.errors.OperationFailure: command {'collstats': 'storageSize'}
failed: ns not found

I install pymongo-1.1.

Did I misunderstand it ?

-- kuer

[Eliot Horowitz]

Does the collection exist already?
If it doesn't, will return that error.

2009/11/2 kuer <kue...@gmail.com>:

[kuer]

Thanks, Eliot.

You are right. I connect the wrong database. It works now.

and, is there a doc/page listing available commands such as
'collstats' ??

thanks

--kuer

On 11月3日, 上午11时04分, Eliot Horowitz <eliothorow...@gmail.com> wrote:
> Does the collection exist already?
> If it doesn't, will return that error.
>

> 2009/11/2 kuer <kuer...@gmail.com>:

[Eliot Horowitz]

http://www.mongodb.org/display/DOCS/Table+of+Database+Commands


2009/11/2 kuer <kue...@gmail.com>: