# How to solve the problem of frequent CDS request queuing?

**URL:** <https://forum.ecmwf.int/t/how-to-solve-the-problem-of-frequent-cds-request-queuing/15507>\
**Category:** C3S - Datasets and Usage\
**Tags:** api\
**Created:** [26 October 2026 13:59 UTC](https://forum.ecmwf.int/t/how-to-solve-the-problem-of-frequent-cds-request-queuing/15507 "2026-10-26T13:59:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LINYUN\_HE](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/l/f07891/32.png) [@LINYUN\_HE](https://forum.ecmwf.int/u/LINYUN_HE)\
**Post date:** [26 October 2026 13:59 UTC](https://forum.ecmwf.int/t/how-to-solve-the-problem-of-frequent-cds-request-queuing/15507/1 "2026-10-26T13:59:48Z")

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I’ve encountered a problem. I’m trying to request data from approximately 35 years ago. Back in June, I used an API to programmatically download the data in ZIP format, downloading only three files month by month. Each request took only 2-3 minutes, and I didn’t encounter any queuing issues. However, since October 24th, I’ve been downloading the same three files month by month, but my requests are frequently being queued. Files that should be 2-3 MB are now taking about 2 hours to download, which is a huge waste of time.  
How can this be resolved?

 ![image](https://forum.ecmwf.int/uploads/default/original/2X/f/ffb1a532e070e3772680a3066a526feb7129d3ab.png)

 ![image](https://forum.ecmwf.int/uploads/default/original/2X/8/80227645c4d66289248b380e512670a50a71f716.png)

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<div class="post-metadata">

**Author:** ![LINYUN\_HE](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/l/f07891/32.png) [@LINYUN\_HE](https://forum.ecmwf.int/u/LINYUN_HE)\
**Post date:** [27 October 2026 02:49 UTC](https://forum.ecmwf.int/t/how-to-solve-the-problem-of-frequent-cds-request-queuing/15507/2 "2026-10-27T02:49:26Z")

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Can anyone help me?😭 😭 😭 😭 ,please help me,thank you!!!