Total Size Of Requested Files Is Too Large For Zip-on-the-fly !exclusive! Jun 2026
Sometimes this error is a "false positive" triggered because the server doesn't have enough temporary storage space to build the zip file. Ensure the server’s /tmp directory or the data partition has at least as much free space as the size of the files you are trying to download.
For advanced setups, stream the ZIP but store a that allows resumption. If the connection drops, the user can resume from the last byte using Range headers. Libraries like zip-stream (Node.js) or StreamZip (PHP) support this with careful implementation. Sometimes this error is a "false positive" triggered
You are most likely to encounter this error in the following environments: If the connection drops, the user can resume
This is not elegant, but it works immediately. | Your scenario | Recommended solution | |
| Your scenario | Recommended solution | | :--- | :--- | | Average file size < 10MB, total < 500MB, low concurrency | Level 1 (Streamed store) | | Total size > 500MB, users are on fast internet | Level 2 (Chunked deflate) | | Total size > 5GB or generation takes > 30 seconds | Level 3 (Async job) | | Files are already compressed (images, video) | Level 1 (store, no CPU waste) | | You control both client & server (internal tool) | Level 3 + direct disk mount |
(only per-file read buffer). Limitation: Output size ≈ sum of input sizes. Still fails if Content-Length cannot be precomputed.
