max bson size in pymongo

[gelin yan]

Hi All

      I just noticed there is a field named __max_bson_size in connection.py. The value is 4*1024*1024.. As We know after 1.8.x, the max bson size is 16 MB. So what happen if I store a bson object whose size is bigger than 4MB with pymongo?

Regards

gelin yan

[Bernie Hackett]

That field is only used if the 'ismaster' command does not return 'maxBsonObjectSize'. Basically it's only used with MongoDB versions before 1.8. Assuming you are using a MongoDB version of 1.8 or newer, you can store documents up to 16MB in size with PyMongo just fine.

gelin yan

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[gelin yan]

在 2012年11月3日星期六UTC+8上午1时51分47秒，Bernie Hackett写道：

That field is only used if the 'ismaster' command does not return 'maxBsonObjectSize'. Basically it's only used with MongoDB versions before 1.8. Assuming you are using a MongoDB version of 1.8 or newer, you can store documents up to 16MB in size with PyMongo just fine.

On Fri, Nov 2, 2012 at 10:47 AM, gelin yan <geli...@gmail.com> wrote:

Hi All

      I just noticed there is a field named __max_bson_size in connection.py. The value is 4*1024*1024.. As We know after 1.8.x, the max bson size is 16 MB. So what happen if I store a bson object whose size is bigger than 4MB with pymongo?

Regards

gelin yan

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Hi Bernie

      Thanks for your answer, I have verified that. BTW, Does mongodb plan to support larger size like 32 MB ?

Regards

gelin yan

[Bernie Hackett]

There's a ticket you can vote on here:

https://jira.mongodb.org/browse/SERVER-5923