Issue Summary

When exporting a large number of Objects with a large number of Object References on those Objects, the Export will timeout resulting in the user seeing a page saying the Site is unresponsive or the Export CSV is of size Zero Bytes, or the error message "upstream request timeout."

Steps to Reproduce

1. Create a lot of objects (19,000+) in an Object Type.
2. Create a lot of object references on those objects (10+ each).
3. Attempt to export them all from the Object Type.

Expected Results

The Export completes successfully.

Actual Results

The Export time outs and an unresponsive site page is returned or the Export CSV is Zero Bytes.

Workaround

Export fewer objects at a time, such as with these AQL queries:

Key < ABC-5000
Key > ABC-4999 AND Key < ABC-10000
Key > ABC-9999 AND Key < ABC-15000
etc...

That's just one of the examples. You can also use ObjectId:

objectid > 1 and objectid < 1000
objectid > 1001 and objectid < 2000
etc...