API "routing" fails - 404 error

[tmnhy]

From time a time API returns a 404 error on trying to upsert points

Current Behavior

On system - process qdrant loads one processor core 100%

On server side:

...
[2021-07-30T05:27:55Z INFO  actix_web::middleware::logger] 172.17.0.1:43706 "POST /collections/test_collection?wait=true HTTP/1.1" 200 86 "-" "Python
/3.6 aiohttp/3.7.4.post0" 0.024770
[2021-07-30T05:28:01Z INFO  actix_web::middleware::logger] 172.17.0.1:43710 "POST /collections/test_collection?wait=true HTTP/1.1" 404 87 "-" "Python
/3.6 aiohttp/3.7.4.post0" 0.014020
[2021-07-30T05:28:09Z INFO  actix_web::middleware::logger] 172.17.0.1:43714 "POST /collections/test_collection?wait=true HTTP/1.1" 404 86 "-" "Python
/3.6 aiohttp/3.7.4.post0" 0.015836
[2021-07-30T05:28:17Z INFO  actix_web::middleware::logger] 172.17.0.1:43718 "POST /collections/test_collection?wait=true HTTP/1.1" 404 88 "-" "Python
/3.6 aiohttp/3.7.4.post0" 0.012977
...

On client side:

...
{'result': None, 'status': {'error': 'No point with id 100911063 found'}, 'time': 0.003710724}
{'result': None, 'status': {'error': 'No point with id 100890079 found'}, 'time': 0.009171441}
...

Steps to Reproduce

1. Create collection like:

{
    "create_collection": {
        "name": "test_collection",
        "vector_size": 256,
        "distance": "Cosine"
    }
}

2. Insert enough points making many POST requests. From 80 to 150 point on request, one request every 5-10 seconds.
3. After about 300-500 requests Qdrant returning 404 for each request

Expected Behavior

• Message in server logs about cause of the error
• tips to avoid this

Possible Solution

Wait for qdrant to restart web server or restart qdrant manually

Context (Environment)

• Host system based on i7-3930
• Ubuntu 18.04
• Memory free: ~1G
• Disk free
• Docker version 20.10.2
• latest docker image builted on host

[generall]

Should be fixed in https://github.com/qdrant/qdrant/releases/tag/v0.3.6