Where can i find a list of errors and error codes that the mongo server throws

[Adil]

I'm trying to catch some specific Exceptions (like : "duplicate key insert for unique index of capped collection") that the server sends and ignore them. Instead of text matching, i'd like to match by error code. Is there a list somewhere that i can use as reference? I could not find anything other than this : https://github.com/mongodb/mongo/blob/master/docs/errors.md . It doesn't contain the error above.

Thanks,

Adil

[Stephen Steneker]

On Saturday, 11 October 2014 00:53:24 UTC+11, Adil wrote:

I'm trying to catch some specific Exceptions (like : "duplicate key insert for unique index of capped collection") that the server sends and ignore them. Instead of text matching, i'd like to match by error code. Is there a list somewhere that i can use as reference? I could not find anything other than this : https://github.com/mongodb/mongo/blob/master/docs/errors.md . It doesn't contain the error above.

Hi Adil,

The errors.md document is generated by parsing the source code for assertions (see buildscripts/errorcodes.py). The error.md list in github may not be complete and will vary by version of MongoDB. For example, error.md will not include new assertions that have been added since the checked-in doc was generated, or previous assertions that have been removed due to code refactoring.

The "master" branch you referenced relates to the current development cycle (MongoDB 2.7.x), so you should instead be looking at a branch relevant for your version of MongoDB.

The exception you asked about ("duplicate key insert for unique index of capped collection") does not appear in the current code base, so is also missing from errors.md in the master branch. In MongoDB 2.6, duplicate key exceptions on capped collections now return E11000 (the same as a duplicate key exception on a non-capped collection). 

Given the exception you're trying to catch, I assume you are using MongoDB 2.4 or older: https://github.com/mongodb/mongo/blob/v2.4/docs/errors.md.

Regards,

Stephen

[Adil Baig]

Hey Stephen,

Thank you for the comprehensive response.

Adil

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[Thangavel Loganathan]

Hi Stephen,

         Could you please send me the link for 3.4 error codes? I couldn't find it. :-( 

Thanks in advance! Cheers!!

Regards,

Thangavel L

[Stephen Steneker]

On Wednesday, 8 February 2017 07:41:52 UTC+11, Thangavel Loganathan wrote:

 Could you please send me the link for 3.4 error codes? I couldn't find it. :-( 

Hi Thangavel,

There is no equivalent link for MongoDB 3.4. The previous "errors.md" file was an internal (and incomplete) reference generated from the server source code, and was not updated in sync with the code base. This file was finally removed during the 3.3 development cycle, but an updated version hadn't been committed for several years prior. The last committed version predated MongoDB 3.0.

In general your MongoDB driver should roll up any errors into relevant exception categories for your application to handle. For example: MongoDB .NET Driver: Error Handling. 

If you have questions about specific error codes or error handling, please start a new discussion including details of your server and driver versions as well as the use case.

Regards,

Stennie

[Gustavo Schenkel]

https://github.com/mongodb/mongo/blob/master/src/mongo/base/error_codes.err