The document is a record in a collection. Each UTF-8 character takes one byte. The 16Mb limit on document size seems very arbitrary indeed, given that Mongo is capable of storing documents with much larger (about 536.7Mb, I think). Marko Anastasov wrote this on February 17, 2012 . The maximum document size helps ensure that a single document cannot use excessive amount of RAM or, during transmission, excessive amount of bandwidth. The solution must also fit for single nodes (and must not require multiple mongos). With its 16Mb limit, a MongoDB document can easily store around 2 million values of 64-bit numbers (also dates and booleans). To store documents larger than the maximum size, MongoDB provides the GridFS API. I don't know what you're aggregating (and hence how big records are)but, you would … Could this value be configurable? Query Utilization: The percentage of time that a query is running over any five minute period must remain under 100% on M0 Free Tier and M2/M5 shared clusters. As per MongoDB BOL here The maximum BSON document size is 16 megabytes.. After some researches, I get to find a solution not to encounter the 16mb hard limit ... Is there any workaround to improve perfs here ? MongoDb aggregation 16MB buffer size limit: Mukesh Kumar: 12/23/15 10:54 PM: Hey guys, Please tell me how can we resolve this issue, we are using aggregation and size of docs become greater than 16MB. Data Transfer Limits GridFS is a specification for storing and retrieving files that exceed … Since I regularly run against mongodb's document size limit and also aggregation framework's group limitations >16M, depending on the amount of data I need to process, I look for a simple workaround. Beware of MongoDB's document size limit Given I am MongoDB beginner When designing a database for large quantities of data Then I should be aware of the document size limit in BSON format . MongoDB is happy to accommodate large documents of up to 16 MB in collections, and GridFS is designed for large documents over 16MB. Each document has the limitation of 16 MB size. If one attempts to work with a document larger than 16MB, notification fails, and the document is replaced with another document that meets the set limit. A ... .limit(50).sort(created_at:true); But it is clear here that we will only have pointers to the next and previous pages. MongoDB Database Big Data Analytics. But strings are a special case. aggregation result exceeds maximum document size (16MB) suggests that something in either MongoDB or the MongoDB driver caps the results of an aggregation at 16MB. When you get to one-to-tons(10000+) this is where you need to consider things like MongoDB’s 16 MB limit per document or using references to the parent document. Try Jira - bug tracking software for your team. But it was surprising how getting to page number 2000 ended up in a timeout. The document is wrapped inside the curly bracket ({}). M0/M2/M5 sort in memory limit is 32 MB. ... Powered by a free Atlassian Jira open source license for MongoDB. Saying in few words, it's an aggregation for finding Connections: M0 Free Tier and M2/M5 shared clusters are allowed a maximum of 500 connections. In MongoDB, the value of N matters, if it’s One-to-few (2-10), one-to-many,(10-1000) this can still be a good schema design as long as your indexes support your queries. Recently I came across a big MongoDB database which needed pagination. MongoDb aggregation 16MB buffer size limit Showing 1-19 of 19 messages. 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